falan42/medcuad_data huggingface dataset:
Topic: Andersen-Tawil syndrome
Question: What is (are) Andersen-Tawil syndrome ?
Answer: Anderson-Tawil syndrome is a disorder that causes episodes of muscle weakness (periodic paralysis), changes in heart rhythm (arrhythmia), and developmental abnormalities. The most common changes affecting the heart are ventricular arrhythmia, which is a disruption in the rhythm of the heart's lower chambers, and long QT syndrome. Long QT syndrome is a heart condition that causes the heart (cardiac) muscle to take longer than usual to recharge between beats. If untreated, the irregular heartbeats can lead to discomfort, fainting (syncope), or cardiac arrest.  Physical abnormalities associated with Andersen-Tawil syndrome typically affect the head, face, and limbs. These features often include a very small lower jaw (micrognathia), dental abnormalities, low-set ears, widely spaced eyes, and unusual curving of the fingers or toes (clinodactyly). Some affected people also have short stature and an abnormal curvature of the spine (scoliosis).  Two types of Andersen-Tawil syndrome are distinguished by their genetic causes. Type 1, which accounts for about 60 percent of all cases of the disorder, is caused by mutations in the KCNJ2 gene. The remaining 40 percent of cases are designated as type 2; the cause of these cases is unknown.
(Source: GHR)
Topic: Andersen-Tawil syndrome
Question: How many people are affected by Andersen-Tawil syndrome ?
Answer: Andersen-Tawil syndrome is a rare genetic disorder; its incidence is unknown. About 100 people with this condition have been reported worldwide.
(Source: GHR)
Topic: Andersen-Tawil syndrome
Question: What are the genetic changes related to Andersen-Tawil syndrome ?
Answer: Mutations in the KCNJ2 gene cause Andersen-Tawil syndrome.  The KCNJ2 gene provides instructions for making a protein that forms a channel across cell membranes. This channel transports positively charged atoms (ions) of potassium into muscle cells. The movement of potassium ions through these channels is critical for maintaining the normal functions of muscles used for movement (skeletal muscles) and cardiac muscle. Mutations in the KCNJ2 gene alter the usual structure and function of potassium channels or prevent the channels from being inserted correctly into the cell membrane. Many mutations prevent a molecule called PIP2 from binding to the channels and effectively regulating their activity. These changes disrupt the flow of potassium ions in skeletal and cardiac muscle, leading to the periodic paralysis and irregular heart rhythm characteristic of Andersen-Tawil syndrome.  Researchers have not determined the role of the KCNJ2 gene in bone development, and it is not known how mutations in the gene lead to the developmental abnormalities often found in Andersen-Tawil syndrome.
(Source: GHR)
Topic: Andersen-Tawil syndrome
Question: Is Andersen-Tawil syndrome inherited ?
Answer: This condition is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In some cases, a person with Andersen-Tawil syndrome inherits the mutation from one affected parent. Other cases result from new mutations in the KCNJ2 gene. These cases occur in people with no history of the disorder in their family.
(Source: GHR)
Topic: Andersen-Tawil syndrome
Question: What are the treatments for Andersen-Tawil syndrome ?
Answer: These resources address the diagnosis or management of Andersen-Tawil syndrome:  - Gene Review: Gene Review: Andersen-Tawil Syndrome  - Genetic Testing Registry: Andersen Tawil syndrome   These resources from MedlinePlus offer information about the diagnosis and management of various health conditions:  - Diagnostic Tests  - Drug Therapy  - Surgery and Rehabilitation  - Genetic Counseling   - Palliative Care
(Source: GHR)
Topic: Gitelman syndrome
Question: What is (are) Gitelman syndrome ?
Answer: Gitelman syndrome is a kidney disorder that causes an imbalance of charged atoms (ions) in the body, including ions of potassium, magnesium, and calcium.  The signs and symptoms of Gitelman syndrome usually appear in late childhood or adolescence. Common features of this condition include painful muscle spasms (tetany), muscle weakness or cramping, dizziness, and salt craving. Also common is a tingling or prickly sensation in the skin (paresthesias), most often affecting the face. Some individuals with Gitelman syndrome experience excessive tiredness (fatigue), low blood pressure, and a painful joint condition called chondrocalcinosis. Studies suggest that Gitelman syndrome may also increase the risk of a potentially dangerous abnormal heart rhythm called ventricular arrhythmia.  The signs and symptoms of Gitelman syndrome vary widely, even among affected members of the same family. Most people with this condition have relatively mild symptoms, although affected individuals with severe muscle cramping, paralysis, and slow growth have been reported.
(Source: GHR)
Topic: Gitelman syndrome
Question: How many people are affected by Gitelman syndrome ?
Answer: Gitelman syndrome affects an estimated 1 in 40,000 people worldwide.
(Source: GHR)
Topic: Gitelman syndrome
Question: What are the genetic changes related to Gitelman syndrome ?
Answer: Gitelman syndrome is usually caused by mutations in the SLC12A3 gene. Less often, the condition results from mutations in the CLCNKB gene. The proteins produced from these genes are involved in the kidneys' reabsorption of salt (sodium chloride or NaCl) from urine back into the bloodstream. Mutations in either gene impair the kidneys' ability to reabsorb salt, leading to the loss of excess salt in the urine (salt wasting). Abnormalities of salt transport also affect the reabsorption of other ions, including ions of potassium, magnesium, and calcium. The resulting imbalance of ions in the body underlies the major features of Gitelman syndrome.
(Source: GHR)
Topic: Gitelman syndrome
Question: Is Gitelman syndrome inherited ?
Answer: This condition is inherited in an autosomal recessive pattern, which means both copies of the gene in each cell have mutations. The parents of an individual with an autosomal recessive condition each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition.
(Source: GHR)
Topic: Gitelman syndrome
Question: What are the treatments for Gitelman syndrome ?
Answer: These resources address the diagnosis or management of Gitelman syndrome:  - Genetic Testing Registry: Familial hypokalemia-hypomagnesemia   These resources from MedlinePlus offer information about the diagnosis and management of various health conditions:  - Diagnostic Tests  - Drug Therapy  - Surgery and Rehabilitation  - Genetic Counseling   - Palliative Care
(Source: GHR)
Topic: 16p11.2 deletion syndrome
Question: What is (are) 16p11.2 deletion syndrome ?
Answer: 16p11.2 deletion syndrome is a disorder caused by a deletion of a small piece of chromosome 16. The deletion occurs near the middle of the chromosome at a location designated p11.2.  People with 16p11.2 deletion syndrome usually have developmental delay and intellectual disability. Most also have at least some features of autism spectrum disorders. These disorders are characterized by impaired communication and socialization skills, as well as delayed development of speech and language. In 16p11.2 deletion syndrome, expressive language skills (vocabulary and the production of speech) are generally more severely affected than receptive language skills (the ability to understand speech). Some people with this disorder have recurrent seizures (epilepsy).  Some affected individuals have minor physical abnormalities such as low-set ears or partially webbed toes (partial syndactyly). People with this disorder are also at increased risk of obesity compared with the general population. However, there is no particular pattern of physical abnormalities that characterizes 16p11.2 deletion syndrome. Signs and symptoms of the disorder vary even among affected members of the same family. Some people with the deletion have no identified physical, intellectual, or behavioral abnormalities.
(Source: GHR)
Topic: 16p11.2 deletion syndrome
Question: How many people are affected by 16p11.2 deletion syndrome ?
Answer: Most people tested for the 16p11.2 deletion have come to medical attention as a result of developmental delay or autistic behaviors. Other individuals with the 16p11.2 deletion have no associated health or behavioral problems, and so the deletion may never be detected. For this reason, the prevalence of this deletion in the general population is difficult to determine but has been estimated at approximately 3 in 10,000.
(Source: GHR)
Topic: 16p11.2 deletion syndrome
Question: What are the genetic changes related to 16p11.2 deletion syndrome ?
Answer: People with 16p11.2 deletion syndrome are missing a sequence of about 600,000 DNA building blocks (base pairs), also written as 600 kilobases (kb), at position p11.2 on chromosome 16. This deletion affects one of the two copies of chromosome 16 in each cell. The 600 kb region contains more than 25 genes, and in many cases little is known about their function. Researchers are working to determine how the missing genes contribute to the features of 16p11.2 deletion syndrome.
(Source: GHR)
Topic: 16p11.2 deletion syndrome
Question: Is 16p11.2 deletion syndrome inherited ?
Answer: 16p11.2 deletion syndrome is considered to have an autosomal dominant inheritance pattern because a deletion in one copy of chromosome 16 in each cell is sufficient to cause the condition. However, most cases of 16p11.2 deletion syndrome are not inherited. The deletion occurs most often as a random event during the formation of reproductive cells (eggs and sperm) or in early fetal development. Affected people typically have no history of the disorder in their family, although they can pass the condition to their children. Several examples of inherited 16p11.2 deletion have been reported. In inherited cases, other family members may be affected as well.
(Source: GHR)
Topic: 16p11.2 deletion syndrome
Question: What are the treatments for 16p11.2 deletion syndrome ?
Answer: These resources address the diagnosis or management of 16p11.2 deletion syndrome:  - Gene Review: Gene Review: 16p11.2 Recurrent Microdeletion  - Genetic Testing Registry: 16p11.2 deletion syndrome  - Genetic Testing Registry: Autism, susceptibility to, 14a   These resources from MedlinePlus offer information about the diagnosis and management of various health conditions:  - Diagnostic Tests  - Drug Therapy  - Surgery and Rehabilitation  - Genetic Counseling   - Palliative Care
(Source: GHR)
Topic: Sjgren syndrome
Question: What is (are) Sjgren syndrome ?
Answer: Sjgren syndrome is a disorder whose main features are dry eyes and a dry mouth. The condition typically develops gradually beginning in middle adulthood, but can occur at any age.  Sjgren syndrome is classified as an autoimmune disorder, one of a large group of conditions that occur when the immune system attacks the body's own tissues and organs. In Sjgren syndrome, the immune system primarily attacks the glands that produce tears (the lacrimal glands) and saliva (the salivary glands), impairing the glands' ability to secrete these fluids.  Dry eyes may lead to itching, burning, a feeling of sand in the eyes, blurry vision, or intolerance of bright or fluorescent lighting. A dry mouth can feel chalky or full of cotton, and affected individuals may have difficulty speaking, tasting food, or swallowing. Because saliva helps protect the teeth and the tissues of the oral cavity, people with Sjgren syndrome are at increased risk of tooth decay and infections in the mouth.  In most people with Sjgren syndrome, dry eyes and dry mouth are the primary features of the disorder, and general health and life expectancy are largely unaffected. However, in some cases the immune system also attacks and damages other organs and tissues. This complication is known as extraglandular involvement. Affected individuals may develop inflammation in connective tissues, which provide strength and flexibility to structures throughout the body. Disorders involving connective tissue inflammation are sometimes called rheumatic conditions. In Sjgren syndrome, extraglandular involvement may result in painful inflammation of the joints and muscles; dry, itchy skin and skin rashes; chronic cough; a hoarse voice; kidney and liver problems; numbness or tingling in the hands and feet; and, in women, vaginal dryness. Prolonged and extreme tiredness (fatigue) severe enough to affect activities of daily living may also occur in this disorder. A small number of people with Sjgren syndrome develop lymphoma, a blood-related cancer that causes tumor formation in the lymph nodes.  When Sjgren syndrome first occurs on its own, it is called primary Sjgren syndrome. Some individuals who are first diagnosed with another rheumatic disorder, such as rheumatoid arthritis or systemic lupus erythematosus, later develop the dry eyes and dry mouth characteristic of Sjgren syndrome. In such cases, the individual is said to have secondary Sjgren syndrome. Other autoimmune disorders can also develop after the onset of primary Sjgren syndrome. In all, about half of all individuals with Sjgren syndrome also have another autoimmune disorder.
(Source: GHR)
Topic: Sjgren syndrome
Question: How many people are affected by Sjgren syndrome ?
Answer: Sjgren syndrome is a relatively common disorder; it occurs in 0.1 to 4 percent of the population. It is difficult to determine the exact prevalence because the characteristic features of this disorder, dry eyes and dry mouth, can also be caused by many other conditions. Women develop Sjgren syndrome about 10 times more often than men; the specific reason for this difference is unknown but likely involves the effects of sex hormones on immune system function.
(Source: GHR)
Topic: Sjgren syndrome
Question: What are the genetic changes related to Sjgren syndrome ?
Answer: Sjgren syndrome is thought to result from a combination of genetic and environmental factors; however, no associations between specific genetic changes and the development of Sjgren syndrome have been confirmed. Researchers believe that variations in many genes affect the risk of developing Sjgren syndrome, but that development of the condition may be triggered by something in the environment. In particular, viral or bacterial infections, which activate the immune system, may have the potential to encourage the development of Sjgren syndrome in susceptible individuals. The genetic variations that increase susceptibility may reduce the body's ability to turn off the immune response when it is no longer needed.
(Source: GHR)
Topic: Sjgren syndrome
Question: Is Sjgren syndrome inherited ?
Answer: A predisposition to develop autoimmune disorders can be passed through generations in families. Relatives of people with Sjgren syndrome are at an increased risk of developing autoimmune diseases, although they are not necessarily more likely to develop Sjgren syndrome in particular. The inheritance pattern of this predisposition is unknown.
(Source: GHR)
Topic: Sjgren syndrome
Question: What are the treatments for Sjgren syndrome ?
Answer: These resources address the diagnosis or management of Sjgren syndrome:  - Genetic Testing Registry: Sjgren's syndrome  - MedlinePlus Encyclopedia: Schirmer's Test  - National Institute of Dental and Craniofacial Research: Sjgren's Syndrome Clinic  - Sjgren's Syndrome Foundation: Treatments   These resources from MedlinePlus offer information about the diagnosis and management of various health conditions:  - Diagnostic Tests  - Drug Therapy  - Surgery and Rehabilitation  - Genetic Counseling   - Palliative Care
(Source: GHR)
Topic: Werner syndrome
Question: What is (are) Werner syndrome ?
Answer: Werner syndrome is characterized by the dramatic, rapid appearance of features associated with normal aging. Individuals with this disorder typically grow and develop normally until they reach puberty. Affected teenagers usually do not have a growth spurt, resulting in short stature. The characteristic aged appearance of individuals with Werner syndrome typically begins to develop when they are in their twenties and includes graying and loss of hair; a hoarse voice; and thin, hardened skin. They may also have a facial appearance described as "bird-like." Many people with Werner syndrome have thin arms and legs and a thick trunk due to abnormal fat deposition.  As Werner syndrome progresses, affected individuals may develop disorders of aging early in life, such as cloudy lenses (cataracts) in both eyes, skin ulcers, type 2 diabetes, diminished fertility, severe hardening of the arteries (atherosclerosis), thinning of the bones (osteoporosis), and some types of cancer. It is not uncommon for affected individuals to develop multiple, rare cancers during their lifetime. People with Werner syndrome usually live into their late forties or early fifties. The most common causes of death are cancer and atherosclerosis.
(Source: GHR)
Topic: Werner syndrome
Question: How many people are affected by Werner syndrome ?
Answer: Werner syndrome is estimated to affect 1 in 200,000 individuals in the United States. This syndrome occurs more often in Japan, affecting 1 in 20,000 to 1 in 40,000 people.
(Source: GHR)
Topic: Werner syndrome
Question: What are the genetic changes related to Werner syndrome ?
Answer: Mutations in the WRN gene cause Werner syndrome. The WRN gene provides instructions for producing the Werner protein, which is thought to perform several tasks related to the maintenance and repair of DNA. This protein also assists in the process of copying (replicating) DNA in preparation for cell division. Mutations in the WRN gene often lead to the production of an abnormally short, nonfunctional Werner protein. Research suggests that this shortened protein is not transported to the cell's nucleus, where it normally interacts with DNA. Evidence also suggests that the altered protein is broken down more quickly in the cell than the normal Werner protein. Researchers do not fully understand how WRN mutations cause the signs and symptoms of Werner syndrome. Cells with an altered Werner protein may divide more slowly or stop dividing earlier than normal, causing growth problems. Also, the altered protein may allow DNA damage to accumulate, which could impair normal cell activities and cause the health problems associated with this condition.
(Source: GHR)
Topic: Werner syndrome
Question: Is Werner syndrome inherited ?
Answer: Werner syndrome is inherited in an autosomal recessive pattern, which means both copies of the WRN gene in each cell have mutations. The parents of an individual with Werner syndrome each carry one copy of the mutated gene, but they typically do not show signs and symptoms of the condition.
(Source: GHR)
Topic: Werner syndrome
Question: What are the treatments for Werner syndrome ?
Answer: These resources address the diagnosis or management of Werner syndrome:  - Gene Review: Gene Review: Werner Syndrome  - Genetic Testing Registry: Werner syndrome   These resources from MedlinePlus offer information about the diagnosis and management of various health conditions:  - Diagnostic Tests  - Drug Therapy  - Surgery and Rehabilitation  - Genetic Counseling   - Palliative Care
(Source: GHR)
Topic: multiple system atrophy
Question: What is (are) multiple system atrophy ?
Answer: Multiple system atrophy is a progressive brain disorder that affects movement and balance and disrupts the function of the autonomic nervous system. The autonomic nervous system controls body functions that are mostly involuntary, such as regulation of blood pressure.  Researchers have described two major types of multiple system atrophy, which are distinguished by their major signs and symptoms at the time of diagnosis. In one type, known as MSA-P, a group of movement abnormalities called parkinsonism are predominant. These abnormalities include unusually slow movement (bradykinesia), muscle rigidity, tremors, and an inability to hold the body upright and balanced (postural instability). The other type of multiple system atrophy, known as MSA-C, is characterized by cerebellar ataxia, which causes problems with coordination and balance. This form of the condition can also include speech difficulties (dysarthria) and problems controlling eye movement.  Both forms of multiple system atrophy are associated with abnormalities of the autonomic nervous system. The most frequent autonomic symptoms associated with multiple system atrophy are a sudden drop in blood pressure upon standing (orthostatic hypotension), urinary difficulties, and erectile dysfunction in men.  Multiple system atrophy usually occurs in older adults; on average, signs and symptoms appear around age 55. The signs and symptoms of the condition worsen with time, and affected individuals survive an average of 9 years after their diagnosis.
(Source: GHR)
Topic: multiple system atrophy
Question: How many people are affected by multiple system atrophy ?
Answer: Multiple system atrophy has a prevalence of about 2 to 5 per 100,000 people.
(Source: GHR)
Topic: multiple system atrophy
Question: What are the genetic changes related to multiple system atrophy ?
Answer: Multiple system atrophy is a complex condition that is likely caused by the interaction of multiple genetic and environmental factors. Some of these factors have been identified, but many remain unknown.  Changes in several genes have been studied as possible risk factors for multiple system atrophy. The only confirmed genetic risk factors are variants in the SNCA gene. This gene provides instructions for making a protein called alpha-synuclein, which is abundant in normal brain cells but whose function is unknown. Studies suggest that several common variations in the SNCA gene are associated with an increased risk of multiple system atrophy in people of European descent. However, it is unclear how having one of these SNCA gene variants increases the risk of developing this condition.  Researchers have also examined environmental factors that could contribute to the risk of multiple system atrophy. Initial studies suggested that exposure to solvents, certain types of plastic or metal, and other potential toxins might be associated with the condition. However, these associations have not been confirmed.  Multiple system atrophy is characterized by clumps of abnormal alpha-synuclein protein that build up in cells in many parts of the brain and spinal cord. Over time, these clumps (which are known as inclusions) damage cells in parts of the nervous system that control movement, balance and coordination, and autonomic functioning. The progressive loss of cells in these regions underlies the major features of multiple system atrophy.
(Source: GHR)
Topic: multiple system atrophy
Question: Is multiple system atrophy inherited ?
Answer: Most cases of multiple system atrophy are sporadic, which means they occur in people with no history of the disorder in their family. Rarely, the condition has been reported to run in families; however, it does not have a clear pattern of inheritance.
(Source: GHR)
Topic: multiple system atrophy
Question: What are the treatments for multiple system atrophy ?
Answer: These resources address the diagnosis or management of multiple system atrophy:  - Genetic Testing Registry: Shy-Drager syndrome  - Vanderbilt Autonomic Dysfunction Center   These resources from MedlinePlus offer information about the diagnosis and management of various health conditions:  - Diagnostic Tests  - Drug Therapy  - Surgery and Rehabilitation  - Genetic Counseling   - Palliative Care
(Source: GHR)