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<s>[INST] What is the outlook for Cerebral Arteriosclerosis ? [/INST] Cerebral arteriosclerosis can lead to life threatening health events such as ischemic or hemorrhagic strokes. People who survive stroke may have long-term neurological and motor impairments. </s></s>

<s>[INST] what research (or clinical trials) is being done for Cerebral Arteriosclerosis ? [/INST] The NINDS supports an extensive research program on stroke and conditions that can lead to stroke. Much of this research is aimed at finding ways to prevent and treat conditions such as cerebral arteriosclerosis. </s></s>

<s>[INST] What is (are) Schizencephaly ? [/INST] Schizencephaly is an extremely rare developmental birth defect characterized by abnormal slits, or clefts, in the cerebral hemispheres of the brain. Babies with clefts in both hemispheres (called bilateral clefts) commonly have developmental delays, delays in speech and language skills, and problems with brain-spinal cord communication. Individuals with clefts in only one hemisphere (called unilateral clefts) are often paralyzed on one side of the body, but may have average to near-average intelligence. Individuals with schizencephaly may also have an abnormally small head, cognitive delay and impairment, partial or complete paralysis, or poor muscle tone. Most will experience seizures. Some individuals may have an excessive accumulation of fluid in the brain called hydrocephalus. </s></s>

<s>[INST] What are the treatments for Schizencephaly ? [/INST] Treatment generally consists of physical therapy and drugs to prevent seizures. In cases that are complicated by hydrocephalus, a surgically implanted tube, called a shunt, is often used to divert fluid to another area of the body where it can be absorbed. </s></s>

<s>[INST] What is the outlook for Schizencephaly ? [/INST] The prognosis for individuals with schizencephaly varies depending on the size of the clefts and the extent of neurological disabilities. </s></s>

<s>[INST] what research (or clinical trials) is being done for Schizencephaly ? [/INST] The NINDS conducts and supports a wide range of studies that explore the mechanisms of normal brain development. The knowledge gained from these fundamental studies provides the foundation for understanding how to prevent or treat developmental brain defects such as schizencephaly. </s></s>

<s>[INST] What is (are) Inflammatory Myopathies ? [/INST] The inflammatory myopathies are a group of diseases, with no known cause, that involve chronic muscle inflammation accompanied by muscle weakness. The three main types of chronic, or persistent, inflammatory myopathy are polymyositis, dermatomyositis, and inclusion body myositis (IBM). These rare disorders may affect both adults and children, although dermatomyositis is more common in children. Polymyositis and dermatomyositis are more common in women than in men. General symptoms of chronic inflammatory myopathy include slow but progressive muscle weakness that starts in the proximal musclesthose muscles closest to the trunk of the body. Other symptoms include fatigue after walking or standing, tripping or falling, and difficulty swallowing or breathing. Some patients may have slight muscle pain or muscles that are tender to the touch. Polymyositis affects skeletal muscles (involved with making movement) on both sides of the body. Dermatomyositis is characterized by a skin rash that precedes or accompanies progressive muscle weakness. IBM is characterized by progressive muscle weakness and wasting. Juvenile myositis has some similarities to adult dermatomyositis and polymyositis. </s></s>

<s>[INST] What are the treatments for Inflammatory Myopathies ? [/INST] The chronic inflammatory myopathies cant be cured in most adults but many of the symptoms can be treated. Options include medication, physical therapy, exercise, heat therapy (including microwave and ultrasound), orthotics and assistive devices, and rest. Polymyositis and dermatomyositis are first treated with high doses of prednisone or another corticosteroid drug. This is most often given as an oral medication but can be delivered intravenously. Immunosuppressant drugs, such as azathioprine and methotrexate, may reduce inflammation in people who do not respond well to prednisone. IBM has no standard course of treatment. The disease is generally unresponsive to corticosteroids and immunosuppressive drugs. </s></s>

<s>[INST] What is the outlook for Inflammatory Myopathies ? [/INST] Most cases of dermatomyositis respond to therapy. The prognosis for polymyositis varies. Most individuals respond fairly well to therapy, but some people have a more severe disease that does not respond adequately to therapies and are left with significant disability. IBM is generally resistant to all therapies and its rate of progression appears to be unaffected by currently available treatments. </s></s>

<s>[INST] what research (or clinical trials) is being done for Inflammatory Myopathies ? [/INST] The National Institutes of Health (NIH), through the collaborative efforts of its National Institute of Neurological Disorders and Stroke (NINDS), National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), and National Institute of Environmental Health Sciences (NIEHS), conducts and supports a wide range of research on neuromuscular disorders, including the inflammatory myopathies. The NINDS and NIAMS are funding DNA analyses using microarrays to characterize patterns of muscle gene expression among adult and juvenile individuals with distinct subtypes of inflammatory myopathies. Findings will be used to refine disease classification and provide clues to the pathology of these disorders. Other NIH-funded research is studying prior viral infection as a precursor to inflammatory myopathy. Other research hopes to determine whether the drug infliximab, which blocks a protein that is associated with harmful inflammation, is safe and effective in treating dermatomyositis and polymyositis. </s></s>

<s>[INST] What is (are) Stiff-Person Syndrome ? [/INST] Stiff-person syndrome (SPS) is a rare neurological disorder with features of an autoimmune disease. SPS is characterized by fluctuating muscle rigidity in the trunk and limbs and a heightened sensitivity to stimuli such as noise, touch, and emotional distress, which can set off muscle spasms. Abnormal postures, often hunched over and stiffened, are characteristic of the disorder. People with SPS can be too disabled to walk or move, or they are afraid to leave the house because street noises, such as the sound of a horn, can trigger spasms and falls. SPS affects twice as many women as men. It is frequently associated with other autoimmune diseases such as diabetes, thyroiditis, vitiligo, and pernicious anemia. Scientists dont yet understand what causes SPS, but research indicates that it is the result of an autoimmune response gone awry in the brain and spinal cord. The disorder is often misdiagnosed as Parkinsons disease, multiple sclerosis, fibromyalgia, psychosomatic illness, or anxiety and phobia. A definitive diagnosis can be made with a blood test that measures the level of glutamic acid decarboxylase (GAD) antibodies in the blood. People with SPS have elevated levels of GAD, an antibody that works against an enzyme involved in the synthesis of an important neurotransmitter in the brain. </s></s>

<s>[INST] What are the treatments for Stiff-Person Syndrome ? [/INST] People with SPS respond to high doses of diazepam and several anti-convulsants, gabapentin and tiagabine. A recent study funded by the NINDS demonstrated the effectiveness of intravenous immunoglobulin (IVIg) treatment in reducing stiffness and lowering sensitivity to noise, touch, and stress in people with SPS. </s></s>

<s>[INST] What is the outlook for Stiff-Person Syndrome ? [/INST] Treatment with IVIg, anti-anxiety drugs, muscle relaxants, anti-convulsants, and pain relievers will improve the symptoms of SPS, but will not cure the disorder. Most individuals with SPS have frequent falls and because they lack the normal defensive reflexes; injuries can be severe. With appropriate treatment, the symptoms are usually well controlled. </s></s>

<s>[INST] what research (or clinical trials) is being done for Stiff-Person Syndrome ? [/INST] The National Institute of Neurological Disorders and Stroke (NINDS) conducts research related to SPS in its laboratories at the National Institutes of Health (NIH), and also supports additional research through grants to major medical institutions across the country. A study using the drug rituximab proved ineffective in treating individuals with the disorder. Current research is focused on understanding the cause of the disease and the role of the anti-GAD antibodies. </s></s>

<s>[INST] What is (are) Hereditary Spastic Paraplegia ? [/INST] Hereditary spastic paraplegia (HSP), also called familial spastic paraparesis (FSP), refers to a group of inherited disorders that are characterized by progressive weakness and spasticity (stiffness) of the legs. Early in the disease course, there may be mild gait difficulties and stiffness. These symptoms typically slowly progress so that eventually individuals with HSP may require the assistance of a cane, walker, or wheelchair. Though the primary features of "pure" HSP are progressive lower limb spasticity and weakness, complicated forms may be accompanied by other symptoms. These additional symptoms include impaired vision due to cataracts and problems with the optic nerve and retina of the eye, ataxia (lack of muscle coordination), epilepsy, cognitive impairment, peripheral neuropathy, and deafness. The diagnosis of HSP is primarily by neurological examination and testing to rule out other disorders. Brain MRI abnormalities, such as a thin corpus callosum, may be seen in some of the complicated forms of HSP. Several genetic mutations have been identified which underlie various forms of HSP, and specialized genetic testing and diagnosis are available at some medical centers. HSP has several forms of inheritance. Not all children in a family will necessarily develop symptoms, although they may be carriers of the abnormal gene. Symptoms may begin in childhood or adulthood, depending on the particular HSP gene involved. </s></s>

<s>[INST] What are the treatments for Hereditary Spastic Paraplegia ? [/INST] There are no specific treatments to prevent, slow, or reverse HSP. Symptomatic treatments used for spasticity, such as muscle relaxants, are sometimes helpful. Regular physical therapy is important for muscle strength and to preserve range of motion. </s></s>

<s>[INST] What is the outlook for Hereditary Spastic Paraplegia ? [/INST] The prognosis for individuals with HSP varies Some individuals are very disabled and others have only mild disability. The majority of individuals with uncomplicated HSP have a normal life expectancy. </s></s>

<s>[INST] what research (or clinical trials) is being done for Hereditary Spastic Paraplegia ? [/INST] The NINDS supports research on genetic disorders such as HSP. More than 30 genes that are responsible for several forms of HSP have been identified, and many more will likely be identified in the future. These genes generally encode proteins that normally help maintain the function of axons in the spinal cord. Understanding how mutations of these genes cause HSP should lead to ways to prevent, treat, and cure HSP. </s></s>

<s>[INST] What is (are) Leukodystrophy ? [/INST] Leukodystrophy refers to progressive degeneration of the white matter of the brain due to imperfect growth or development of the myelin sheath, the fatty covering that acts as an insulator around nerve fiber. Myelin, which lends its color to the white matter of the brain, is a complex substance made up of at least ten different chemicals. The leukodystrophies are a group of disorders that are caused by genetic defects in how myelin produces or metabolizes these chemicals. Each of the leukodystrophies is the result of a defect in the gene that controls one (and only one) of the chemicals. Specific leukodystrophies include metachromatic leukodystrophy, Krabb disease, adrenoleukodystrophy, Pelizaeus-Merzbacher disease, Canavan disease, Childhood Ataxia with Central Nervous System Hypomyelination or CACH (also known as Vanishing White Matter Disease), Alexander disease, Refsum disease, and cerebrotendinous xanthomatosis. The most common symptom of a leukodystrophy disease is a gradual decline in an infant or child who previously appeared well. Progressive loss may appear in body tone, movements, gait, speech, ability to eat, vision, hearing, and behavior. There is often a slowdown in mental and physical development. Symptoms vary according to the specific type of leukodystrophy, and may be difficult to recognize in the early stages of the disease. </s></s>

<s>[INST] What are the treatments for Leukodystrophy ? [/INST] Treatment for most of the leukodystrophies is symptomatic and supportive, and may include medications, physical, occupational, and speech therapies; and nutritional, educational, and recreational programs. Bone marrow transplantation is showing promise for a few of the leukodystrophies. </s></s>

<s>[INST] What is the outlook for Leukodystrophy ? [/INST] The prognosis for the leukodystrophies varies according to the specific type of leukodystrophy. </s></s>

<s>[INST] what research (or clinical trials) is being done for Leukodystrophy ? [/INST] The NINDS supports research on genetic disorders, including the leukodystrophies. The goals of this research are to increase scientific understanding of these disorders, and to find ways to prevent, treat, and, ultimately, cure them. </s></s>

<s>[INST] What is (are) Canavan Disease ? [/INST] Canavan disease is a gene-linked neurological disorder in which the brain degenerates into spongy tissue riddled with microscopic fluid-filled spaces. Canavan disease has been classified as one of a group of genetic disorders known as the leukodystrophies. Recent research has indicated that the cells in the brain responsible for making myelin sheaths, known as oligodendrocytes, cannot properly complete this critical developmental task. Myelin sheaths are the fatty covering that act as insulators around nerve fibers in the brain, as well as providing nutritional support for nerve cells. In Canavan disease, many oligodendrocytes do not mature and instead die, leaving nerve cell projections known as axons vulnerable and unable to properly function. Canavan disease is caused by mutation in the gene for an enzyme called aspartoacylase, which acts to break down the concentrated brain chemical known as N-acetyl-aspartate. Symptoms of Canavan disease usually appear in the first 3 to 6 months of life and progress rapidly. Symptoms include lack of motor development, feeding difficulties, abnormal muscle tone (weakness or stiffness), and an abnormally large, poorly controlled head. Paralysis, blindness, or hearing loss may also occur. Children are characteristically quiet and apathetic. Although Canavan disease may occur in any ethnic group, it is more frequent among Ashkenazi Jews from eastern Poland, Lithuania, and western Russia, and among Saudi Arabians. Canavan disease can be identified by a simple prenatal blood test that screens for the missing enzyme or for mutations in the gene that controls aspartoacylase. Both parents must be carriers of the defective gene in order to have an affected child. When both parents are found to carry the Canavan gene mutation, there is a one in four (25 percent) chance with each pregnancy that the child will be affected with Canavan disease. </s></s>

<s>[INST] What are the treatments for Canavan Disease ? [/INST] Canavan disease causes progressive brain atrophy. There is no cure, nor is there a standard course of treatment. Treatment is symptomatic and supportive. </s></s>

<s>[INST] What is the outlook for Canavan Disease ? [/INST] The prognosis for Canavan disease is poor. Death usually occurs before age 10, although some children may survive into their teens and twenties. </s></s>

<s>[INST] what research (or clinical trials) is being done for Canavan Disease ? [/INST] The gene for Canavan disease has been located. Many laboratories offer prenatal screening for this disorder to populations at risk. Scientists have developed animal models for this disease and are using the models to test potential therapeutic strategies. Three strategies are currently under investigation: gene transfer to the brain in order to replace the mutated gene for the enzyme; metabolic therapy to provide a crucial missing metabolite (acetate); and enzyme therapy where the enzyme aspartoacylase is engineered to be able to enter the brain and is injected in the the blood stream. Encouraging results have been obtained using these strategies. </s></s>

<s>[INST] What is (are) Alexander Disease ? [/INST] Alexander disease is one of a group of neurological conditions known as the leukodystrophies, disorders that are the result of abnormalities in myelin, the white matter that protects nerve fibers in the brain. Alexander disease is a progressive and often fatal disease. The destruction of white matter is accompanied by the formation of Rosenthal fibers, which are abnormal clumps of protein that accumulate in non-neuronal cells of the brain called astrocytes. Rosenthal fibers are sometimes found in other disorders, but not in the same amount or area of the brain that are featured in Alexander disease. The infantile form is the most common type of Alexander disease. It has an onset during the first two years of life. Usually there are both mental and physical developmental delays, followed by the loss of developmental milestones, an abnormal increase in head size, and seizures. The juvenile form of Alexander disease is less common and has an onset between the ages of two and thirteen. These children may have excessive vomiting, difficulty swallowing and speaking, poor coordination, and loss of motor control. Adult-onset forms of Alexander disease are less common. The symptoms sometimes mimic those of Parkinsons disease or multiple sclerosis, or may present primarily as a psychiatric disorder. The disease occurs in both males and females, and there are no ethnic, racial, geographic, or cultural/economic differences in its distribution. </s></s>

<s>[INST] What are the treatments for Alexander Disease ? [/INST] There is no cure for Alexander disease, nor is there a standard course of treatment. Treatment of Alexander disease is symptomatic and supportive. </s></s>

<s>[INST] What is the outlook for Alexander Disease ? [/INST] The prognosis for individuals with Alexander disease is generally poor. Most children with the infantile form do not survive past the age of 6. Juvenile and adult onset forms of the disorder have a slower, more lengthy course. </s></s>

<s>[INST] what research (or clinical trials) is being done for Alexander Disease ? [/INST] Recent discoveries show that most individuals (approximately 90 percent) with Alexander disease have a mutation in the gene that makes glial fibrillary acidic protein (GFAP). GFAP is a normal component of the brain, but it is unclear how the mutations in this genecauses the disease. In most cases mutations occur spontaneously are not inherited from parents.A small number of people thought to have Alexander disease do not have identifiable mutations in GFAP, which leads researchers to believe that there may be other genetic or perhaps even non-genetic causes of Alexander disease. Current research is aimed at understanding the mechanisms by which the mutations cause disease, developing better animal models for the disorder, and exploring potential strategies for treatment. At present, there is no exact animal model for the disease; however, mice have been engineered to produce the same mutant forms of GFAP found in individuals with Alexander disease. These mice form Rosenthal fibers and have a predisposition for seizures, but do not yet mimic all features of human disease (such as the leukodystrophies). One clinical study is underway to identify biomarkers of disease severity or progression in samples of blood or cerebrospinal fluid. Such biomarkers, if found, would be a major advantage for evaluating the response to any treatments that are developed in the future. </s></s>

<s>[INST] What is (are) Narcolepsy ? [/INST] Narcolepsy is a chronic neurological disorder caused by the brain's inability to regulate sleep-wake cycles normally. At various times throughout the day, people with narcolepsy experience irresistable bouts ofsleep. If the urge becomes overwhelming, individuals will fall asleep for periods lasting from a few seconds to several minutes. In rare cases, some people may remain asleep for an hour or longer. In addition to excessive daytime sleepiness (EDS), three other major symptoms frequently characterize narcolepsy: cataplexy, or the sudden loss of voluntary muscle tone; vivid hallucinations during sleep onset or upon awakening; and brief episodes of total paralysis at the beginning or end of sleep. Narcolepsy is not definitively diagnosed in most patients until 10 to 15 years after the first symptoms appear. The cause of narcolepsy remains unknown. It is likely that narcolepsy involves multiple factors interacting to cause neurological dysfunction and sleep disturbances. </s></s>

<s>[INST] What are the treatments for Narcolepsy ? [/INST] There is no cure for narcolepsy. In 1999, after successful clinical trial results, the U.S. Food and Drug Administration (FDA) approved a drug called modafinil for the treatment of EDS. Two classes of antidepressant drugs have proved effective in controlling cataplexy in many patients: tricyclics (including imipramine, desipramine, clomipramine, and protriptyline) and selective serotonin reuptake inhibitors (including fluoxetine and sertraline). Drug therapy should be supplemented by behavioral strategies. For example, many people with narcolepsy take short, regularly scheduled naps at times when they tend to feel sleepiest. Improving the quality of nighttime sleep can combat EDS and help relieve persistent feelings of fatigue. Among the most important common-sense measures people with narcolepsy can take to enhance sleep quality are actions such as maintaining a regular sleep schedule, and avoiding alcohol and caffeine-containing beverages before bedtime. The drug Xyrem (sodium oxybate or gamma hydroxybutyrate, also known as GHB) was approved in July 2002 for treating cataplexy and in November 2005 for EDS in people who have narcolepsy. Due to safety concerns associated with the use of this drug, the distribution of Xyrem is tightly restricted. </s></s>

<s>[INST] What is the outlook for Narcolepsy ? [/INST] None of the currently available medications enables people with narcolepsy to consistently maintain a fully normal state of alertness. But EDS and cataplexy, the most disabling symptoms of the disorder, can be controlled in most patients with drug treatment. Often the treatment regimen is modified as symptoms change. Whatever the age of onset, patients find that the symptoms tend to get worse over the two to three decades after the first symptoms appear. Many older patients find that some daytime symptoms decrease in severity after age 60. </s></s>

<s>[INST] what research (or clinical trials) is being done for Narcolepsy ? [/INST] The National Institute of Neurological Disorders and Stroke (NINDS) and other institutes of the National Institutes of Health (NIH) conduct research into narcolepsy and other sleep disorders in laboratories at the NIH and also support additional research through grants to major medical institutions across the country. The NINDS continues to support investigations into the basic biology of sleep, including the brain mechanisms involved in generating and regulating sleep. Within the National Heart, Lung, and Blood Institute, also a component of the NIH, the National Center on Sleep Disorders Research (NCSDR) coordinates Federal government sleep research activities and shares information with private and nonprofit groups. </s></s>

<s>[INST] What are the complications of Neurological Complications of AIDS ? [/INST] AIDS is primarily an immune system disorder caused by the human immunodeficiency virus (HIV), but it can also affect the nervous system. HIV does not appear to directly invade nerve cells but it jeopardizes their health and function, causing symptoms such as confusion, forgetfulness, behavioral changes, headaches, progressive weakness and loss of sensation in the arms and legs, cognitive motor impairment, or damage to the peripheral nerves. Other complications that can occur as a result of HIV infection or the drugs used to treat it include pain, seizures, shingles, spinal cord problems, lack of coordination, difficult or painful swallowing, anxiety disorder, depression, fever, vision loss, gait disorders, destruction of brain tissue, and coma. Other AIDS-related nervous system disorders may be caused by certain cancers or by illnesses that would not otherwise affect people with healthy immune systems. Among the most common neurological complications are: AIDS dementia complex, causing symptoms such as encephalitis (inflammation of the brain), behavioral changes, and a gradual decline in cognitive function; central nervous system lymphomas, cancerous tumors that either begin in the brain or result from a cancer that has spread from another site in the body; cryptococcal meningitis; cytomegalovirus infections; herpes virus infections; neuropathy; neurosyphilis; progressive multifocal leukoencephalopathy (PML); and psychological and neuropsychiatric disorders. </s></s>

<s>[INST] What are the treatments for Neurological Complications of AIDS ? [/INST] No single treatment can cure the neurological complications of AIDS. Some disorders require aggressive therapy while others are treated symptomatically. Medicines range from analgesics sold over the counter to antiepileptic drugs, opiates, corticosteroids, and some classes of antidepressants. Other treatments include radiation therapy or chemotherapy to kill or shrink cancerous brain tumors that may be caused by HIV, antifungal or antimalarial drugs to combat certain bacterial infections, and penicillin to treat neurosyphilis. Aggressive antiretroviral therapy is used to treat AIDS dementia complex, PML, and cytomegalovirus encephalitis. HAART, or highly active antiretroviral therapy, combines at least three drugs to reduce the amount of virus circulating in the blood and may also delay the start of some infections. </s></s>

<s>[INST] What is the outlook for Neurological Complications of AIDS ? [/INST] The overall prognosis for individuals with AIDS in recent years has improved significantly because of new drugs and treatments. AIDS clinicians often fail to recognize neurological complications of AIDS. Those who suspect they are having neurological complications should be sure to discuss these with their doctor. </s></s>

<s>[INST] what research (or clinical trials) is being done for Neurological Complications of AIDS ? [/INST] Within the Federal government, the National Institute of Neurological Disorders and Stroke (NINDS), one part of the National Institutes of Health (NIH), supports research on the neurological consequences of AIDS. The NINDS works closely with its sister agency, the National Institute of Allergy and Infectious Diseases (NIAID), which has primary responsibility for research related to HIV and AIDS. </s></s>

<s>[INST] What is (are) Tabes Dorsalis ? [/INST] Tabes dorsalis is a slow degeneration of the nerve cells and nerve fibers that carry sensory information to the brain. The degenerating nerves are in the dorsal columns of the spinal cord (the portion closest to the back of the body) and carry information that help maintain a person's sense of position. Tabes dorsalis is the result of an untreated syphilis infection. Symptoms may not appear for some decades after the initial infection and include weakness, diminished reflexes, unsteady gait, progressive degeneration of the joints, loss of coordination, episodes of intense pain and disturbed sensation, personality changes, dementia, deafness, visual impairment, and impaired response to light. The disease is more frequent in males than in females. Onset is commonly during mid-life. The incidence of tabes dorsalis is rising, in part due to co-associated HIV infection. </s></s>

<s>[INST] What are the treatments for Tabes Dorsalis ? [/INST] Penicillin, administered intravenously, is the treatment of choice. Associated pain can be treated with opiates, valproate, or carbamazepine. Patients may also require physical or rehabilitative therapy to deal with muscle wasting and weakness. Preventive treatment for those who come into sexual contact with an individual with tabes dorsalis is important. </s></s>

<s>[INST] What is the outlook for Tabes Dorsalis ? [/INST] If left untreated, tabes dorsalis can lead to paralysis, dementia, and blindness. Existing nerve damage cannot be reversed. </s></s>

<s>[INST] what research (or clinical trials) is being done for Tabes Dorsalis ? [/INST] The NINDS supports and conducts research on neurodegenerative disorders, such as tabes dorsalis, in an effort to find ways to prevent, treat, and, ultimately, cure these disorders. </s></s>

<s>[INST] What is (are) Herpes Zoster Oticus ? [/INST] Herpes zoster oticus, also called Ramsay Hunt Syndrome or Ramsay Hunt Syndrome type II, is a common complication of shingles. Shingles is an infection caused by the varicella-zoster virus, which is the virus that causes chickenpox. Shingles occurs in people who have had chickenpox and represents a reactivation of the dormant varicella-zoster virus. Herpes zoster oticus, which is caused by the spread of the varicella-zoster virus to facial nerves, is characterized by intense ear pain, a rash around the ear, mouth, face, neck, and scalp, and paralysis of facial nerves. Other symptoms may include hearing loss, vertigo (abnormal sensation of movement), and tinnitus (abnormal sounds). Taste loss in the tongue and dry mouth and eyes may also occur. </s></s>

<s>[INST] What are the treatments for Herpes Zoster Oticus ? [/INST] Some cases of herpes zoster oticus do not require treatment. When treatment is needed, medications such as antiviral drugs or corticosteroids may be prescribed. Vertigo may be treated with the drug diazepam </s></s>

<s>[INST] What is the outlook for Herpes Zoster Oticus ? [/INST] Generally, the prognosis of herpes zoster oticus is good. However, in some cases, hearing loss may be permanent. Vertigo may last for days or weeks. Facial paralysis may be temporary or permanent. </s></s>

<s>[INST] what research (or clinical trials) is being done for Herpes Zoster Oticus ? [/INST] The NINDS supports research on shingles and shingles-related conditions. Current studies focus on the relationship between the persistence of neurotropic viruses and development of neurological diseases including herpes simplex and varicella-zoster viruses. </s></s>

<s>[INST] What is (are) Hemicrania Continua ? [/INST] Hemicrania continua is a chronic and persistent form of headache marked by continuous pain that varies in severity, always occurs on the same side of the face and head, and is superimposed with additional debilitating symptoms. on the continuous but fluctuating pain are occasional attacks of more severe pain. A small percentage of individuals with hemicrania continua have bilateral pain, or pain on both sides of the head. A headache is considered hemicrania continua if the person has had a one-sided daily or continuous headache of moderate intensity with occasional short, piercing head pain for more than 3 months without shifting sides or pain-free periods. The headache must also be completely responsive to treatment with the non-steroidal anti-inflammatory drug drug indomethacin. It must have at least one of the following symptoms: eye redness and/or tearing, nasal congestion and/or runny nose, ptosis (drooping eyelid) and miosis (contracture of the iris). Occasionally, individuals will also have forehead sweating and migraine symptoms, such as throbbing pain, nausea and/or vomiting, or sensitivity to light and sound. The disorder has two forms: chronic, with daily headaches, and remitting, in which headaches may occur for a period as long as 6 months and are followed by a pain-free period of weeks to months until the pain returns. Most patients experience attacks of increased pain three to five times per 24-hour cycle. This disorder is more common in women than in men. Physical exertion and alcohol use may increase the severity of headache pain in some patients. The cause of this disorder is unknown. </s></s>

<s>[INST] What are the treatments for Hemicrania Continua ? [/INST] Indomethacin provides rapid relief from symptoms. Patients must take between 25 and 300 milligrams of indomethacin daily and indefinitely to decrease symptoms. Some individuals may need to take acid-suppression medicine due to a gastrointestinal side effect. For those who cannot tolerate the side effects, another NSAID, celecoxib, has been shown to have less complications and can be prescribed. Amitriptyline and other tricyclic antidepressants are also effective in some individuals with hemicrania continua as a preventative treatment. </s></s>

<s>[INST] What is the outlook for Hemicrania Continua ? [/INST] Individuals may obtain complete to near-complete relief of symptoms with proper medical attention and daily medication. Some people may not be able to tolerate long-term use of indomethacin and may have to rely on less effective NSAIDs. </s></s>

<s>[INST] what research (or clinical trials) is being done for Hemicrania Continua ? [/INST] The National Institute of Neurological Disorders and Stroke (NINDS) and other institutes of the National Institutes of Health (NIH) support research related to hemicrania continua through grants to medical research institutions across the country. Much of this research focuses on understanding hemicrania continua in order to finding better ways to prevent, treat, and ultimately cure the disorder. </s></s>

<s>[INST] What is (are) Paroxysmal Choreoathetosis ? [/INST] Paroxysmal choreoathetosis is a movement disorder characterized by episodes or attacks of involuntary movements of the limbs, trunk, and facial muscles. The disorder may occur in several members of a family, or in only a single family member. Prior to an attack some individuals experience tightening of muscles or other physical symptoms. Involuntary movements precipitate some attacks, and other attacks occur when the individual has consumed alcohol or caffeine, or is tired or stressed. Attacks can last from 10 seconds to over an hour. Some individuals have lingering muscle tightness after an attack. Paroxysmal choreoathetosis frequently begins in early adolescence. A gene associated with the disorder has been discovered. The same gene is also associated with epilepsy. </s></s>

<s>[INST] What are the treatments for Paroxysmal Choreoathetosis ? [/INST] Drug therapy, particularly carbamazepine, has been very successful in reducing or eliminating attacks of paroxysmal choreoathetosis. While carbamazepine is not effective in every case, other drugs have been substituted with good effect. </s></s>

<s>[INST] What is the outlook for Paroxysmal Choreoathetosis ? [/INST] Generally, paroxysmal choreoathetosis lessens with age, and many adults have a complete remission. Because drug therapy is so effective, the prognosis for the disorder is good. </s></s>

<s>[INST] what research (or clinical trials) is being done for Paroxysmal Choreoathetosis ? [/INST] NINDS supports and conducts research on movement disorders such as paroxysmal choreoathetosis. Much of this research is aimed at finding ways to prevent and treat these disorders. </s></s>

<s>[INST] What is (are) Tropical Spastic Paraparesis ? [/INST] For several decades the term tropical spastic paraparesis (TSP) has been used to describe a chronic and progressive disease of the nervous system that affects adults living in equatorial areas of the world and causes progressive weakness, stiff muscles, muscle spasms, sensory disturbance, and sphincter dysfunction. The cause of TSP was obscure until the mid-1980s, when an important association was established between the human retrovirus human T-cell lymphotrophic virus type 1 (also known as HTLV-1) and TSP. TSP is now called HTLV-1 associated myelopathy/ tropical spastic paraparesis or HAM/TSP. The HTLV-1 retrovirus is thought to cause at least 80 percent of the cases of HAM/TSP by impairing the immune system. In addition to neurological symptoms of weakness and muscle stiffness or spasms, in rare cases individuals with HAM/TSP also exhibit uveitis (inflammation of the uveal tract of the eye), arthritis (inflammation of one or more joints), pulmonary lymphocytic alveolitis (inflammation of the lung), polymyositis (an inflammatory muscle disease), keratoconjunctivitis sicca (persistent dryness of the cornea and conjunctiva), and infectious dermatitis (inflammation of the skin). The other serious complication of HTLV-1 infection is the development of adult T-cell leukemia or lymphoma. Nervous system and blood-related complications occur only in a very small proportion of infected individuals, while most remain largely without symptoms throughout their lives. The HTLV-1 virus is transmitted person-to-person via infected cells: breast-feeding by mothers who are seropositive (in other words, have high levels of virus antibodies in their blood), sharing infected needles during intravenous drug use, or having sexual relations with a seropositive partner. Less than 2 percent of HTLV-1 seropositive carriers will become HAM/TSP patients. </s></s>

<s>[INST] What are the treatments for Tropical Spastic Paraparesis ? [/INST] There is no established treatment program for HAM/TSP. Corticosteroids may relieve some symptoms, but arent likely to change the course of the disorder. Clinical studies suggest that interferon alpha provides benefits over short periods and some aspects of disease activity may be improved favorably using interferon beta. Stiff and spastic muscles may be treated with lioresal or tizanidine. Urinary dysfunction may be treated with oxybutynin. </s></s>

<s>[INST] What is the outlook for Tropical Spastic Paraparesis ? [/INST] HAM/TSP is a progressive disease, but it is rarely fatal. Most individuals live for several decades after the diagnosis. Their prognosis improves if they take steps to prevent urinary tract infection and skin sores, and if they participate in physical and occupational therapy programs. </s></s>

<s>[INST] what research (or clinical trials) is being done for Tropical Spastic Paraparesis ? [/INST] The National Institute of Neurological Disorders and Stroke (NINDS) and other institutes of the National Institutes of Health (NIH) conduct research related to HAM/TSP in laboratories at the NIH, and support additional research through grants to major medical institutions across the country. Much of this research focuses on finding better ways to prevent, treat, and ultimately cure disorders such as HAM/TSP. </s></s>

<s>[INST] What is (are) Alpers' Disease ? [/INST] Alpers' disease is a progressive, neurodevelopmental, mitochondrial DNA depletion syndrome characterized by three co-occurring clinical symptoms: psychomotor regression (dementia); seizures; and liver disease. It is an autosomal recessive disease caused by mutation in the gene for the mitochondrial DNA polymerase POLG. The disease occurs in about one in 100,000 persons. Most individuals with Alpers' disease do not show symptoms at birth and develop normally for weeks to years before the onset of symptoms. Diagnosis is established by testing for the POLG gene. Symptoms typically occur months before tissue samples show the mitochondrial DNA depletion, so that these depletion studies cannot be used for early diagnosis. About 80 percent of individuals with Alpers' disease develop symptoms in the first two years of life, and 20 percent develop symptoms between ages 2 and 25. The first symptoms of the disorder are usually nonspecific and may include hypoglycemia secondary to underlying liver disease, failure to thrive, infection-associated encephalopathy, spasticity, myoclonus (involuntary jerking of a muscle or group of muscles), seizures, or liver failure. An increased protein level is seen in cerebrospinal fluid analysis. Cortical blindness (loss of vision due to damage to the area of the cortex that controls vision) develops in about 25 percent of cases. Gastrointestinal dysfunction and cardiomyopathy may occur. Dementia is typically episodic and often associated with an infection that occurs while another disease is in process. Seizures may be difficult to control and unrelenting seizures can cause developmental regression as well. "Alpers-like" disorders without liver disease are genetically different and have a different clinical course. Fewer than one-third of individuals with the "Alpers-like" phenotype without liver disease have POLG mutations. </s></s>

<s>[INST] What are the treatments for Alpers' Disease ? [/INST] There is no cure for Alpers' disease and no way to slow its progression. Treatment is symptomatic and supportive. Anticonvulsants may be used to treat the seizures, but at times the seizures do not respond well to therapy, even at high doses. Therefore, the benefit of seizure control should be weights against what could be excessive sedation from the anticonvulsant.. Valproate should not be used since it can increase the risk of liver failure. Physical therapy may help to relieve spasticity and maintain or increase muscle tone. </s></s>

<s>[INST] What is the outlook for Alpers' Disease ? [/INST] The prognosis for individuals with Alpers' disease is poor. Those with the disease usually die within their first decade of life. Continuous, unrelenting seizures often lead to death. Liver failure and cardiorespiratory failure due to brain, spinal cord, and nerve involvement may also occur. </s></s>

<s>[INST] what research (or clinical trials) is being done for Alpers' Disease ? [/INST] The NINDS supports research on gene-linked neurodegenerative disorders such as Alpers' disease. The goals of this research are to increase scientific understanding of these disorders, and to find ways to prevent, treat, and cure them. </s></s>

<s>[INST] What is (are) Myasthenia Gravis ? [/INST] Myasthenia gravis is a chronic autoimmune neuromuscular disease characterized by varying degrees of weakness of the skeletal (voluntary) muscles of the body. Symptoms vary in type and intensity. The hallmark of myasthenia gravis is muscle weakness that increases during periods of activity and improves after periods of rest. Muscles that control eye and eyelid movements, facial expression, chewing, talking, and swallowing are often, but not always, involved. The muscles that control breathing and neck and limb movements may also be affected. Myasthenia gravis is caused by a defect in the transmission of nerve impulses to muscles. Normally when impulses travel down the nerve, the nerve endings release a neurotransmitter substance called acetylcholine. In myasthenia gravis, antibodies produced by the body's own immune system block, alter, or destroy the receptors for acetylcholine. The first noticeable symptoms of myasthenia gravis may be weakness of the eye muscles, difficulty in swallowing, or slurred speech. Myasthenia gravis is an autoimmune disease because the immune system--which normally protects the body from foreign organisms--mistakenly attacks itself.. It is not directly inherited nor is it contagious. </s></s>

<s>[INST] What are the treatments for Myasthenia Gravis ? [/INST] Myasthenia gravis can be controlled. Some medications improve neuromuscular transmission and increase muscle strength, and some suppress the production of abnormal antibodies. These medications must be used with careful medical follow up because they may cause major side effects. Thymectomy, the surgical removal of the thymus gland (which often is abnormal in those with myasthenia gravis), improves symptoms in certain individuals Other therapies include plasmapheresis, a procedure in which abnormal antibodies are removed from the blood, and high-dose intravenous immune globulin, which temporarily modifies the immune system and provides the body with normal antibodies from donated blood. </s></s>

<s>[INST] What is the outlook for Myasthenia Gravis ? [/INST] With treatment, most individuals with myasthenia can significantly improve their muscle weakness. Some case of myasthenia gravis may go into remission temporarily, and muscle weakness may disappear so that medications can be discontinued. In a few cases, the severe weakness of myasthenia gravis may cause respiratory failure, which requires immediate emergency medical care. </s></s>

<s>[INST] what research (or clinical trials) is being done for Myasthenia Gravis ? [/INST] Scientists are evaluating new and improving current treatments for myasthenia gravis. Different drugs are being tested, either alone or in combination with existing drug therapies, to see if they are effective in treating the disorder. One study seeks to understand the molecular basis of synaptic transmission in the nervous system. Thymectomy is being studied in individuals who do not have thymoma, to assess long-term benefit the surgery may have over medical therapy alone. And investigators are examining the safety and efficacy of autologous hematopoietic stem cell transplantation to treat refractory and severe myasthenia gravis. </s></s>

<s>[INST] What is (are) Spinal Muscular Atrophy ? [/INST] Spinal Muscular Atrophy (SMA) Types I, II, and III belong to a group of hereditary diseases that cause weakness and wasting of the voluntary muscles in the arms and legs of infants and children. The disorders are caused by an abnormal or missing gene known as the survival motor neuron gene 1 (SMN1), which is responsible for the production of a protein essential to motor neurons. Without this protein, lower motor neurons in the spinal cord degenerate and die. The type of SMA (I, II, or III) is determined by the age of onset and the severity of symptoms. Type I (also known as Werdnig-Hoffman disease, or infantile-onset SMA) is evident at birth or within the first few months. Symptoms include floppy limbs and trunk, feeble movements of the arms and legs, swallowing and feeding difficulties, and impaired breathing. Type II (the intermediate form) usually begins 6 and 18 months of age. Legs tend to be more impaired than arms. Children with Type II may able to sit and some may be able to stand or walk with help. Symptoms of Type III (also called Kugelberg-Welander disease) appear between 2 and 17 years of age and include difficulty running, climbing steps, or rising from a chair. The lower extremities are most often affected. Complications include scoliosis and chronic shortening of muscles or tendons around joints. </s></s>

<s>[INST] What are the treatments for Spinal Muscular Atrophy ? [/INST] There is no cure for SMA. Treatment consists of managing the symptoms and preventing complications. </s></s>

<s>[INST] What is the outlook for Spinal Muscular Atrophy ? [/INST] The prognosis is poor for babies with SMA Type I. Most die within the first two years. For children with SMA Type II, the prognosis for life expectancy or for independent standing or walking roughly correlates with how old they are when they first begin to experience symptoms - older children tend to have less severe symptoms Life expectancy is reduced but some individuals live into adolescence or young adulthood. Individuals with SMA type III may be prone to respiratory infections but with care may have a normal lifespan. </s></s>

<s>[INST] what research (or clinical trials) is being done for Spinal Muscular Atrophy ? [/INST] Between 2003 and 2012, the NINDS piloted the Spinal Muscular Atrophy Project to expedite therapeutics development for this hereditary neurodegenerative disease. The Project was designed to accelerate the research process by identifying drugs that increase the level of SMN protein in cultured cells, so that they could be used as potential leads for further drug discovery and clinical testing. Read more about the history of this pioneering effort and how it led to collaboration with several pharmaceutical and biotechnology companies. </s></s>

<s>[INST] What is (are) Alzheimer's Disease ? [/INST] Alzheimer's disease (AD) is an age-related, non-reversible brain disorder that develops over a period of years. Initially, people experience memory loss and confusion, which may be mistaken for the kinds of memory changes that are sometimes associated with normal aging. However, the symptoms of AD gradually lead to behavior and personality changes, a decline in cognitive abilities such as decision-making and language skills, and problems recognizing family and friends. AD ultimately leads to a severe loss of mental function. These losses are related to the worsening breakdown of the connections between certain neurons in the brain and their eventual death. AD is one of a group of disorders called dementias that are characterized by cognitive and behavioral problems. It is the most common cause of dementia among people age 65 and older. There are three major hallmarks in the brain that are associated with the disease processes of AD. - Amyloid plaques, which are made up of fragments of a protein called beta-amyloid peptide mixed with a collection of additional proteins, remnants of neurons, and bits and pieces of other nerve cells. - Neurofibrillary tangles (NFTs), found inside neurons, are abnormal collections of a protein called tau. Normal tau is required for healthy neurons. However, in AD, tau clumps together. As a result, neurons fail to function normally and eventually die. - Loss of connections between neurons responsible for memory and learning. Neurons can't survive when they lose their connections to other neurons. As neurons die throughout the brain, the affected regions begin to atrophy, or shrink. By the final stage of AD, damage is widespread and brain tissue has shrunk significantly. </s></s>

<s>[INST] What are the treatments for Alzheimer's Disease ? [/INST] Currently there are no medicines that can slow the progression of AD. However, four FDA-approved medications are used to treat AD symptoms. These drugs help individuals carry out the activities of daily living by maintaining thinking, memory, or speaking skills. They can also help with some of the behavioral and personality changes associated with AD. However, they will not stop or reverse AD and appear to help individuals for only a few months to a few years. Donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne) are prescribed to treat mild to moderate AD symptoms. Donepezil was recently approved to treat severe AD as well. The newest AD medication is memantine (Namenda), which is prescribed to treat moderate to severe AD symptoms. </s></s>

<s>[INST] What is the outlook for Alzheimer's Disease ? [/INST] In very few families, people develop AD in their 30s, 40s, and 50s. This is known as "early onset" AD. These individuals have a mutation in one of three different inherited genes that causes the disease to begin at an earlier age. More than 90 percent of AD develops in people older than 65. This form of AD is called "late-onset" AD, and its development and pattern of damage in the brain is similar to that of early-onset AD. The course of this disease varies from person to person, as does the rate of decline. In most people with AD, symptoms first appear after age 65. We don't yet completely understand the causes of late-onset AD, but they probably include genetic, environmental, and lifestyle factors. Although the risk of developing AD increases with age, AD and dementia symptoms are not a part of normal aging. There are also some forms of dementia that aren't related to brain diseases such as AD, but are caused by systemic abnormalities such as metabolic syndrome, in which the combination of high blood pressure, high cholesterol, and diabetes causes confusion and memory loss. </s></s>

<s>[INST] what research (or clinical trials) is being done for Alzheimer's Disease ? [/INST] The National Institute of Neurological Disorders and Stroke (NINDS) supports basic and translational research related to AD through grants to major medical institutions across the country. Current studies are investigating how the development of beta amyloid plaques damages neurons, and how abnormalities in tau proteins create the characteristic neurofibrillary tangles of AD. Other research is exploring the impact of risk factors associated with the development of AD, such as pre-existing problems with blood flow in the blood vessels of the brain. Most importantly, the NINDS supports a number of studies that are developing and testing new and novel therapies that can relieve the symptoms of AD and potentially lead to a cure. On May 15, 2012 the Obama Administration announced the release of the National Alzheimers Plan. U.S. Secretary of Health and Human Services Kathleen Sebelius reaffirmed our nations commitment to conquering Alzheimers disease and related dementias, with a specific goal of finding effective ways to prevent and treat the disease by 2025. </s></s>

<s>[INST] What is (are) Incontinentia Pigmenti ? [/INST] Incontinentia pigmenti (IP) is an inherited disorder of skin pigmentation that is also associated with abnormalities of the teeth, skeletal system, eyes, and central nervous system. It is one of a group of gene-linked diseases known as neurocutaneous disorders. In most cases, IP is caused by mutations in a gene called NEMO (NF-kappaB essential modulator). Males are more severely affected than females. Discolored skin is caused by excessive deposits of melanin (normal skin pigment). Most newborns with IP will develop discolored skin within the first two weeks. The pigmentation involves the trunk and extremities, is slate-grey, blue or brown, and is distributed in irregular marbled or wavy lines. The discoloration fades with age. Neurological problems include loss of brain tissue (known as cerebral atrophy), the formation of small cavities in the central white matter of the brain, and the loss of neurons in the cerebellar cortex. About 20% of children with IP will have slow motor development, muscle weakness in one or both sides of the body, impaired cognitive development, and seizures. They are also likely to have visual problems, including crossed eyes, cataracts, and severe visual loss. Dental problems are also common, including missing or peg-shaped teeth. A related disorder, incontinentia pigmenti achromians, features skin patterns of light, unpigmented swirls and streaks that are the reverse of IP. Associated neurological problems are similar. </s></s>

<s>[INST] What are the treatments for Incontinentia Pigmenti ? [/INST] The skin abnormalities of IP usually disappear by adolescence or adulthood without treatment. Diminished vision may be treated with corrective lenses, medication, or, in severe cases, surgery. A specialist may treat dental problems. Neurological symptoms such as seizures, muscle spasms, or mild paralysis may be controlled with medication and/or medical devices and with the advice of a neurologist. </s></s>

<s>[INST] What is the outlook for Incontinentia Pigmenti ? [/INST] Although the skin abnormalities usually regress, and sometimes disappear completely, there may be residual neurological difficulties. </s></s>

<s>[INST] what research (or clinical trials) is being done for Incontinentia Pigmenti ? [/INST] Researchers have begun to use genetic linkage studies to map the location of genes associated with the neurocutaneous disorders. Research supported by the NINDS includes studies to understand how the brain and nervous system normally develop and function and how they are affected by genetic mutations. These studies contribute to a greater understanding of gene-linked disorders such as IP, and have the potential to open promising new avenues of treatment. </s></s>

<s>[INST] What is (are) Whipple's Disease ? [/INST] Whipple's disease is a multi-system infectious bacterial disease that interferes with the body's ability to metabolize fats. Caused by the bacterium Tropheryma whipplei, the disorder can affect any system in the body, including the brain, eyes, heart, joints, and lungs, but usually occurs in the gastrointestinal system. Neurological symptoms occur in up to 40 percent of individuals and may include dementia, abnormalities of eye and facial muscle movements, headaches, seizures, loss of muscle control, memory loss, weakness, and vision problems. Gastrointestinal symptoms may include diarrhea, weight loss, fatigue, weakness, and abdominal bleeding and pain. Fever, cough, anemia, heart and lung damage, darkening of the skin, and joint soreness may also be present. The disease is more common in men and neurological symptoms are more common in individuals who have severe abdominal disease, Rarely, neurological symptoms may appear without gastrointestinal symptoms and can mimic symptoms of almost any neurologic disease.. </s></s>

<s>[INST] What are the treatments for Whipple's Disease ? [/INST] The standard treatment for Whipple's disease is a prolonged course of antibiotics (up to two years), including penicillin and cefriaxone or doxycycline with hydroxychloroquine. Sulfa drugs (sulfonamides) such as sulfadizine or solfamethoxazole can treat neurological symptoms. Relapsing neurologic Whipple's disease. (marked by bouts of worsening of symptoms) is sometimes treated with a combination of antibiotics and weekly injections of interfron gamma, a substance made by the body that activates the immune system. </s></s>

<s>[INST] What is the outlook for Whipple's Disease ? [/INST] Generally, long-term antibiotic treatment to destroy the bacteria can relieve symptoms and cure the disease. If left untreated, the disease is progressive and fatal. Individuals with involvement of the central nervous system generally have a worse prognosis and may be left with permanent neurologic disability. Deficits may persist and relapses may still occur in individuals who receive appropriate treatment in a timely fashion. Prognosis may improve with earlier recognition, diagnosis, and treatment of the disorder. </s></s>

<s>[INST] what research (or clinical trials) is being done for Whipple's Disease ? [/INST] The mission of the National Institute of Neurological Disorders and Stroke (NINDS) is to seek fundamental knowledge of the brain and nervous system and to use that knowledge to reduce the burden of neurological disease. The NINDS supportsa broad range of research on disorders that affect the central nervous system. The National Institute of Diabetes and Digestive and Kidney Diseases also supports research on disorders such as Whipple's disease. Much of this research is aimed at learning more about these disorders and finding ways to prevent, treat, and, ultimately, cure them. </s></s>

<s>[INST] What is (are) Landau-Kleffner Syndrome ? [/INST] Landau-Kleffner syndrome (LKS) is a rare, childhood neurological disorder characterized by the sudden or gradual development of aphasia (the inability to understand or express language) and an abnormal electro-encephalogram (EEG). LKS affects the parts of the brain that control comprehension and speech. The disorder usually occurs in children between the ages of 5 and 7 years. Typically, children with LKS develop normally but then lose their language skills for no apparent reason. While many of the affected individuals have seizures, some do not. The disorder is difficult to diagnose and may be misdiagnosed as autism, pervasive developmental disorder, hearing impairment, learning disability, auditory/verbal processing disorder, attention deficit disorder, childhood schizophrenia, or emotional/behavioral problems. </s></s>

<s>[INST] What are the treatments for Landau-Kleffner Syndrome ? [/INST] Treatment for LKS usually consists of medications, such as anticonvulsants and corticosteroids, and speech therapy, which should be started early. A controversial treatment option involves a surgical technique called multiple subpial transection in which the pathways of abnormal electrical brain activity are severed </s></s>

<s>[INST] What is the outlook for Landau-Kleffner Syndrome ? [/INST] The prognosis for children with LKS varies. Some affected children may have a permanent severe language disorder, while others may regain much of their language abilities (although it may take months or years). In some cases, remission and relapse may occur. The prognosis is improved when the onset of the disorder is after age 6 and when speech therapy is started early. Seizures generally disappear by adulthood. </s></s>

<s>[INST] what research (or clinical trials) is being done for Landau-Kleffner Syndrome ? [/INST] The NINDS supports broad and varied programs of research on epilepsy and developmental disorders. This research is aimed at discovering new ways to prevent, diagnose, and treat epilepsy and developmental disorders and, ultimately, to find cures for them. </s></s>

<s>[INST] What is (are) Central Pain Syndrome ? [/INST] Central pain syndrome is a neurological condition caused by damage to or dysfunction of the central nervous system (CNS), which includes the brain, brainstem, and spinal cord. This syndrome can be caused by stroke, multiple sclerosis, tumors, epilepsy, brain or spinal cord trauma, or Parkinson's disease. The character of the pain associated with this syndrome differs widely among individuals partly because of the variety of potential causes. Central pain syndrome may affect a large portion of the body or may be more restricted to specific areas, such as hands or feet. The extent of pain is usually related to the cause of the CNS injury or damage. Pain is typically constant, may be moderate to severe in intensity, and is often made worse by touch, movement, emotions, and temperature changes, usually cold temperatures. Individuals experience one or more types of pain sensations, the most prominent being burning. Mingled with the burning may be sensations of "pins and needles;" pressing, lacerating, or aching pain; and brief, intolerable bursts of sharp pain similar to the pain caused by a dental probe on an exposed nerve. Individuals may have numbness in the areas affected by the pain. The burning and loss of touch sensations are usually most severe on the distant parts of the body, such as the feet or hands. Central pain syndrome often begins shortly after the causative injury or damage, but may be delayed by months or even years, especially if it is related to post-stroke pain. </s></s>

<s>[INST] What are the treatments for Central Pain Syndrome ? [/INST] Pain medications often provide some reduction of pain, but not complete relief of pain, for those affected by central pain syndrome. Tricyclic antidepressants such as nortriptyline or anticonvulsants such as neurontin (gabapentin) can be useful. Lowering stress levels appears to reduce pain. </s></s>

<s>[INST] What is the outlook for Central Pain Syndrome ? [/INST] Central pain syndrome is not a fatal disorder, but the syndrome causes disabling chronic pain and suffering among the majority of individuals who have it. </s></s>

<s>[INST] what research (or clinical trials) is being done for Central Pain Syndrome ? [/INST] The NINDS vigorously pursues a research program seeking new treatments for chronic pain and nervous system damage. The goals of this research are to develop ways to more effectively treat and potentially reverse debilitating conditions such as central pain syndrome. </s></s>

<s>[INST] What is (are) Complex Regional Pain Syndrome ? [/INST] Complex regional pain syndrome (CRPS) is a chronic pain condition. The key symptom of CRPS is continuous, intense pain out of proportion to the severity of the injury, which gets worse rather than better over time. CRPS most often affects one of the arms, legs, hands, or feet. Often the pain spreads to include the entire arm or leg. Typical features include dramatic changes in the color and temperature of the skin over the affected limb or body part, accompanied by intense burning pain, skin sensitivity, sweating, and swelling. Doctors arent sure what causes CRPS. In some cases the sympathetic nervous system plays an important role in sustaining the pain. Another theory is that CRPS is caused by a triggering of the immune response, which leads to the characteristic inflammatory symptoms of redness, warmth, and swelling in the affected area. </s></s>

<s>[INST] What are the treatments for Complex Regional Pain Syndrome ? [/INST] Because there is no cure for CRPS, treatment is aimed at relieving painful symptoms. Doctors may prescribe topical analgesics, antidepressants, corticosteroids, and opioids to relieve pain. However, no single drug or combination of drugs has produced consistent long-lasting improvement in symptoms. Other treatments may include physical therapy, sympathetic nerve block, spinal cord stimulation, and intrathecal drug pumps to deliver opioids and local anesthetic agents via the spinal cord. </s></s>

<s>[INST] What is the outlook for Complex Regional Pain Syndrome ? [/INST] The prognosis for CRPS varies from person to person. Spontaneous remission from symptoms occurs in certain individuals. Others can have unremitting pain and crippling, irreversible changes in spite of treatment. </s></s>

<s>[INST] what research (or clinical trials) is being done for Complex Regional Pain Syndrome ? [/INST] The National Institute of Neurological Disorders and Stroke (NINDS) and other institutes of the National Institutes of Health (NIH) conduct research relating to CRPS and also support additional research through grants to major medical institutions across the country. NINDS-supported scientists are studying new approaches to treat CRPS and intervene more aggressively after traumatic injury to lower the chances of developing the disorder. Researchers hope to identify specific cellular and molecular changes in sensory neurons following peripheral nerve injury to better understand the processes that underlie neuroplasticity (the brains ability to reorganize or form new nerve connections and pathways following injury or death of nerve cells). Identifying these mechanisms could provide targets for new drug therapies that could improve recovery following regeneration. Other researchers hope to better understand how CRPS develops by studying immune system activation and peripheral nerve signaling using an animal model of the disorder. </s></s>

<s>[INST] What is (are) Arteriovenous Malformation ? [/INST] Arteriovenous malformations (AVMs) are abnormal, snarled tangles of blood vessels that cause multiple irregular connections between the arteries and veins. These malformations most often occur in the spinal cord and in any part of the brain or on its surface, but can develop elsewhere in the body. AVMs can damage the brain and spinal cord by reducing the amount of oxygen reaching neurological tissues, bleeding into surrounding tissue (hemorrhage) that can cause stroke or brain damage, and by compressing or displacing parts of the brain or spinal cord. Many people with an AVM experience few, if any, significant symptoms, which can include headache, weakness, seizures, pain, and problems with speech, vision, or movement. Most often AVMs are congenital, but they can appear sporadically. In some cases the AVM may be inherited, but it is more likely that other inherited conditions increase the risk of having an AVM. The malformations tend to be discovered only incidentally, usually during treatment for an unrelated disorder or at autopsy. </s></s>

<s>[INST] What are the treatments for Arteriovenous Malformation ? [/INST] Treatment options depend on the type of AVM, its location, noticeable symptoms, and the general health condition of the individual. Medication can often alleviate general symptoms such as headache, back pain, and seizures caused by AVMs and other vascular lesions. The definitive treatment for AVMs is either surgery to either remove the AVM or to create an artificial blood clot to close the lesion or focused irradiation treatment that is designed to damage the blood vessel walls and close the lesion. The decision to treat an AVM requires a careful consideration of possible benefits versus risks. </s></s>

<s>[INST] What is the outlook for Arteriovenous Malformation ? [/INST] The greatest potential danger posed by AVMs is hemorrhage. Most episodes of bleeding remain undetected at the time they occur because they are not severe enough to cause significant neurological damage. But massive, even fatal, bleeding episodes do occur. Whenever an AVM is detected, the individual should be carefully and consistently monitored for any signs of instability that may indicate an increased risk of hemorrhage. Individuals who are treated require brain imaging afterwards to evaluate if the AVM has been completely removed or destroyed. The risk of hemorrhage remains if some of the AVM persists despite treatment. </s></s>

<s>[INST] what research (or clinical trials) is being done for Arteriovenous Malformation ? [/INST] The mission of the National Institute of Neurological Disorders and Stroke (NINDS) is to seek fundamental knowledge about the brain and nervous system, and to use that knowledge to reduce the burden of neurological disease. The NINDS has established an Arteriovenous Study Group to learn more about the natural causes of AVMs and to improve surgical treatment of these lesions. An NINDS study at Columbia University, A Randomized Trial of Unruptured Brain AVMs (ARUBA), showed that medical management alone is superior to medical management and interventional therapy (conventional surgery, endovascular procedures, and radiosurgery) for improving the long-term outcome of individuals with unruptured brain arteriovenous malformations. Data from a recently closed observational phase will show if the disparities continued over the additional five years of follow-up. Among other NINDS-funded research, scientists are testing a class of drugs called beta-blockers to see if they may lead to the development of new treatments for people with vascular malformations. Other NINDS-funded investigators hope to develop biomarkers (signs that may indicate risk of a disease) for AVM that may improve risk assessment and aid in the choice of therapy that may provide maximize benefit with minimal risk to the individual. Additional NINDS-funded research hopes to determine molecular pathways fundamental to the formation of brain AVMs. </s></s>

<s>[INST] What is (are) Ataxia Telangiectasia ? [/INST] Ataxia-telangiectasia is a rare, childhood neurological disorder that causes degeneration in the part of the brain that controls motor movements and speech. The first signs of the disease are unsteady walking and slurred speech, usually occurring during the first five years of life. Telangiectasias (tiny, red "spider" veins), which appear in the corners of the eyes or on the surface of the ears and cheeks, are characteristic of the disease, but are not always present and generally do not appear in the first years of life. About 35 percent of those with A-T develop cancer, most frequently acute lymphocytic leukemia or lymphoma. The most unusual symptom is an acute sensitivity to ionizing radiation, such as X-rays or gamma rays. Many individuals with A-T have a weakened immune system, making them susceptible to recurrent respiratory infections. Other features of the disease may include mild diabetes mellitus, premature graying of the hair, difficulty swallowing, and delayed physical and sexual development. Children with A-T usually have normal or above normal intelligence. </s></s>

<s>[INST] What are the treatments for Ataxia Telangiectasia ? [/INST] There is no cure for A-T and, currently, no way to slow the progression of the disease. Treatment is symptomatic and supportive. Physical and occupational therapy help to maintain flexibility. Speech therapy is important, teaching children to control air flow to the vocal cords. Gamma-globulin injections may be useful if immunoglobulin levels are sufficiently reduced to weaken the immune system. High-dose vitamin regimens and antioxidants such as alpha lipoic acid also may also be used. </s></s>