bowang0911/MedQuAD huggingface dataset:
Myoclonic epilepsy with ragged red fibers (MERRF) is a multisystem disorder characterized by myoclonus, which is often the first symptom, followed by generalized epilepsy, ataxia, weakness, and dementia. Symptoms usually first appear in childhood or adolescence after normal early development. The features of MERRF vary widely from individual to individual, even within families. Other common findings include hearing loss, short stature, optic atrophy, and cardiomyopathy with Wolff-Parkinson-White (WPW) syndrome. The diagnosis is based on clinical features and a muscle biopsy finding of ragged red fibers (RRF). In over 80% of cases, MERRF is caused by mutations in the mitochondrial gene called MT-TK. Several other mitochondrial genes have also been reported to cause MERRF, but many of the individuals with mutations in these other genes have additional signs and symptoms. Seizures associated with MERRF are generally treated with conventional anticonvulsant therapy.  Coenzyme Q10 and L-carnitine are often used with the hope of improving mitochondrial function.
What are the signs and symptoms of Myoclonic epilepsy with ragged red fibers? Because muscle cells and nerve cells have especially high energy needs, muscular and neurological problems are common features of diseases that affect the mitochondria.  MERRF is a progressive multi-system syndrome with symptoms that begin during childhood, but onset may occur in adulthood. The rate of progression varies widely. Onset and extent of symptoms can differ widely from individual to individual and among affected siblings. The classic features of MERRF include: Myoclonus (brief, sudden, twitching muscle spasms)  the most characteristic symptom Epileptic seizures Ataxia (impaired coordination) Ragged-red fibers (a characteristic microscopic abnormality observed in muscle biopsy of patients with MERRF and other mitochondrial disorders) Additional symptoms may include: hearing loss, lactic acidosis (elevated lactic acid level in the blood), short stature, exercise intolerance, dementia, cardiac defects, eye abnormalities, and speech impairment. However, the exact symptoms aren't the same for everyone, because a person with mitochondrial disease can have a unique mixture of healthy and non-working mitochondria, with a unique distribution in the body. Despite their many potential effects, mitochondrial diseases sometimes cause little disability. Sometimes, a person has enough healthy mitochondria to compensate for the defective ones. The Human Phenotype Ontology provides the following list of signs and symptoms for Myoclonic epilepsy with ragged red fibers. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of movement 90% EMG abnormality 90% Incoordination 90% Multiple lipomas 90% Myopathy 90% Sensorineural hearing impairment 90% Cognitive impairment 50% Short stature 50% Optic atrophy 7.5% Ataxia - Generalized myoclonic seizures - Increased serum lactate - Increased serum pyruvate - Mitochondrial inheritance - Muscle weakness - Myoclonus - Ragged-red muscle fibers - Seizures - Spasticity - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
Is myoclonic epilepsy associated with ragged red fibers genetic? If so, how is it inherited? MERRF is caused by mutations in the mitochondrial DNA and is transmitted by maternal inheritance. It is called maternal inheritance because a child inherits the great majority of their mitochondria from their mother through the egg.   The Centre for Genetics Education provides a detail description of maternal inheritance.  The mother of an individual with MERRF usually has a mitochondrial mutation and may or may not have symptoms.  Or, an individual with MERRF may have a mitochondrial mutation that just occurred in them, called a de novo mutation.  If the mother has the mitochondrial mutation, all of her children will inherit the mutation and may or may not have symptoms.  All of her daughters children will also inherit the mitochondrial mutation.  Her son's children are not at risk of inheriting the mutation.
Barraquer-Simons syndrome, or acquired partial lipodystrophy, is characterized by the loss of fat from the face, neck, shoulders, arms, forearms, chest and abdomen. Occasionally the groin or thighs are also affected. Onset usually begins in childhood following a viral illness. It affects females more often than males. The fat loss usually has a 18 month course, but can come and go over the course of several years.  Following puberty, affected women may experience a disproportionate accumulation of fat in the hips and lower limbs. Around 1 in 5 people with this syndrome develop membranoproliferative glomerulonephritis. This kidney condition usually develops more than 10 years after the lipodystrophy's onset. Autoimmune disorders may also occur in association with this syndrome.
What are the signs and symptoms of Barraquer-Simons syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Barraquer-Simons syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Lipoatrophy 90% Abnormality of complement system 50% Autoimmunity 50% Cognitive impairment 50% Glomerulopathy 50% Hearing impairment 50% Hematuria 50% Lymphocytosis 50% Myopathy 50% Prematurely aged appearance 50% Proteinuria 50% Seizures 50% Arthralgia 7.5% Hepatic steatosis 7.5% Hypertrichosis 7.5% Insulin resistance 7.5% Abnormality of lipid metabolism - Autosomal dominant inheritance - Decreased serum complement C3 - Diabetes mellitus - Hirsutism - Juvenile onset - Loss of subcutaneous adipose tissue from upper limbs - Loss of truncal subcutaneous adipose tissue - Membranoproliferative glomerulonephritis - Nephrotic syndrome - Phenotypic variability - Polycystic ovaries - Progressive loss of facial adipose tissue - Recurrent infections - Sporadic - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
How might Barraquer-Simons syndrome be treated? Surgery may be used to improve a person's appearance, but is not needed for medical reasons. Facial reconstruction techniques may be used with varying success. These techniques may include transplantation of fat tissue, silicone implants, movement of facial muscles, or other techniques. No specific diet is recommended for people with Barraquer-Simons syndrome and weight gain should be avoided. Regular exercise is recommended to improve a person's metabolic status. If a person with Barraquer-Simons syndrome has kidney problems, then they may also need to be managed. Treatment may involving a special diet or medications. Dialysis or a kidney transplant may be needed if the condition progresses to kidney failure.
What are the signs and symptoms of Mental retardation syndrome, Belgian type? The Human Phenotype Ontology provides the following list of signs and symptoms for Mental retardation syndrome, Belgian type. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormal nasal morphology 90% Abnormality of the testis 90% Cognitive impairment 90% Deeply set eye 90% Eunuchoid habitus 90% Long face 90% Long thorax 90% Mandibular prognathia 90% Narrow chest 90% Narrow nasal bridge 90% Type I diabetes mellitus 90% Muscular hypotonia 50% Seizures 50% Skeletal muscle atrophy 50% Autosomal recessive inheritance - Cleft ala nasi - Diabetes mellitus - Hypergonadotropic hypogonadism - Intellectual disability, moderate - Wide nose - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
What are the signs and symptoms of Craniosynostosis, anal anomalies, and porokeratosis? The Human Phenotype Ontology provides the following list of signs and symptoms for Craniosynostosis, anal anomalies, and porokeratosis. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Abnormality of the clavicle 90% Abnormality of the eyelashes 90% Aplasia/Hypoplasia of the eyebrow 90% Displacement of the external urethral meatus 90% Frontal bossing 90% Hyperkeratosis 90% Urogenital fistula 90% Cognitive impairment 50% Ectopic anus 50% Hearing impairment 50% Malar flattening 50% Proptosis 50% Thick lower lip vermilion 50% Wide mouth 50% Cleft palate 7.5% Kyphosis 7.5% Anal atresia - Autosomal recessive inheritance - Brachycephaly - Coronal craniosynostosis - Delayed cranial suture closure - Ectropion - Hypoplasia of midface - Hypospadias - Lambdoidal craniosynostosis - Parietal foramina - Porokeratosis - Ptosis - Rectovaginal fistula - Sagittal craniosynostosis - Sensorineural hearing impairment - Short clavicles - Short ribs - Sparse eyebrow - Sparse eyelashes - Sparse scalp hair - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
TAR syndrome is characterized by the absence of a bone called the radius in each forearm, short stature, and thrombocytopenia. The thrombocytopenia often appears first in infancy but becomes less severe or returns to normal over time. Infants and young children are particularly vulnerable to episodes of severe bleeding which may occur in the brain and other organs. Children who survive this period and do not have damaging bleeding in the brain usually have a normal life expectancy and normal intellectual development. Other signs and symptoms vary but may include heart defects, kidney defects, and other skeletal abnormalities. About half of people with TAR syndrome also have difficulty digesting cow's milk. TAR syndrome is thought be caused by a deletion of genes on chromosome 1q21.1 in concert with another genetic change that has yet to be identified. Click here to see a diagram of chromosome 1.
What are the signs and symptoms of TAR syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for TAR syndrome. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Bilateral radial aplasia 100% Abnormality of coagulation 90% Aplasia/Hypoplasia of the ulna 90% Thrombocytopenia 90% Clinodactyly of the 5th finger 75% Cow milk allergy 75% Coxa valga 75% Eosinophilia 75% Genu varum 75% Hip dislocation 75% Patellar aplasia 75% Abnormality of the intestine 50% Adducted thumb 50% Aplasia/hypoplasia of the humerus 50% Broad forehead 50% Broad thumb 50% High forehead 50% Low-set, posteriorly rotated ears 50% Patellar dislocation 50% Death in infancy 40% Anemia 33% Abnormal localization of kidney 7.5% Abnormality of the cardiac septa 7.5% Abnormality of the shoulder 7.5% Carpal bone hypoplasia 7.5% Cavum septum pellucidum 7.5% Cerebellar hypoplasia 7.5% Cleft palate 7.5% Delayed CNS myelination 7.5% Edema of the dorsum of feet 7.5% Edema of the dorsum of hands 7.5% Finger syndactyly 7.5% Hepatosplenomegaly 7.5% Lateral clavicle hook 7.5% Malar flattening 7.5% Nevus flammeus of the forehead 7.5% Phocomelia 7.5% Ptosis 7.5% Scoliosis 7.5% Sensorineural hearing impairment 7.5% Short phalanx of finger 7.5% Strabismus 7.5% Talipes equinovarus 7.5% Tetralogy of Fallot 7.5% Tibial torsion 7.5% Short stature 7% Aplasia of the uterus 5% Axial malrotation of the kidney 5% Cervical ribs 5% Coarctation of aorta 5% Fibular aplasia 5% Fused cervical vertebrae 5% Anteverted nares - Atria septal defect - Autosomal recessive inheritance - Brachycephaly - Carpal synostosis - Decreased antibody level in blood - Horseshoe kidney - Meckel diverticulum - Motor delay - Pancreatic cysts - Seborrheic dermatitis - Seizures - Shoulder muscle hypoplasia - Spina bifida - Ventricular septal defect - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.
48,XXYY syndrome is a chromosomal condition, characterized by the presence of an extra X and Y chromosome in males, that causes medical and behavioral problems. 48,XXYY can be considered a variant of Klinefelter syndrome. Individuals with 48,XXYY are usually considerably tall with small testes that do not function normally leading to infertility. In addition, affected individuals have behavioral problems such as anxiety, aggressiveness, problems communicating, hyperactivity, depression, as well as general learning disabilities and intellectual impairment.  Other medical probelms can include congenital heart defects, bone abnormalities, tremor, obesity, type 2 diabetes and/or respiratory problems. Patients have an essentially normal life expectancy but require regular medical follow-up.
What are signs and symptoms of 48,XXYY syndrome? 48,XXYY affects various body systems including disruption of male sexual development. Adolescent and adult males with this condition typically have small testes that do not produce enough testosterone, which is the hormone that directs male sexual development. A shortage of testosterone during puberty can lead to reduced facial and body hair, poor muscle development, low energy levels, and an increased risk for breast enlargement (gynecomastia). Because their testes do not function normally, males with 48, XXYY syndrome have an inability to father children (infertility). 48,XXYY syndrome can affect other parts of the body as well. Males with 48,XXYY syndrome are often taller than other males their age. They tend to develop a tremor that typically starts as a young adult and worsens with age. Dental problems are frequently seen with this condition; they include delayed appearance of the primary (baby) or secondary (adult) teeth, thin tooth enamel, crowded and/or misaligned teeth, and multiple cavities. As affected males get older, they may develop a narrowing of the blood vessels in the legs, called peripheral vascular disease. Peripheral vascular disease can cause skin ulcers to form. Affected males are also at risk for developing a type of clot called a deep vein thrombosis (DVT) that occurs in the deep veins of the legs. Additionally, males with 48,XXYY syndrome may have flat feet (pes planus), elbow abnormalities, allergies, asthma, type 2 diabetes, seizures, and congenital heart defects. Most males with 48,XXYY syndrome have some degree of difficulty with speech and language development. Learning disabilities, especially reading problems, are very common in males with this disorder. Affected males seem to perform better at tasks focused on math, visual-spatial skills such as puzzles, and memorization of locations or directions. Some boys with 48,XXYY syndrome have delayed development of motor skills such as sitting, standing, and walking that can lead to poor coordination. Affected males have higher than average rates of behavioral disorders, such as attention deficit hyperactivity disorder (ADHD); mood disorders, including anxiety and bipolar disorder; and/or autism spectrum disorders, which affect communication and social interaction.
What causes 48,XXYY? 48,XXYY syndrome is a condition related to the X and Y chromosomes (the sex chromosomes). People normally have 46 chromosomes in each cell. Two of the 46 chromosomes, known as X and Y, are called sex chromosomes because they help determine whether a person will develop male or female sex characteristics. Females typically have two X chromosomes (46,XX), and males have one X chromosome and one Y chromosome (46,XY). 48,XXYY syndrome results from the presence of an extra copy of both sex chromosomes in each of a male's cells (48,XXYY). Extra copies of genes on the X chromosome interfere with male sexual development, preventing the testes from functioning normally and reducing the levels of testosterone. Many genes are found only on the X or Y chromosome, but genes in areas known as the pseudoautosomal regions are present on both sex chromosomes. Extra copies of genes from the pseudoautosomal regions of the extra X and Y chromosome contribute to the signs and symptoms of 48,XXYY syndrome; however, the specific genes have not been identified.[5209]
Aicardi-Goutieres syndrome is an inherited condition that mainly affects the brain, immune system, and skin. It is characterized by early-onset severe brain dysfunction (encephalopathy) that usually results in severe intellectual and physical disability. Additional symptoms may include epilepsy, painful, itchy skin lesion (chilblains), vision problems, and joint stiffness. Symptoms usually progress over several months before the disease course stabilizes. There are six different types of Aicardi-Goutieres syndrome, which are distinguished by the gene that causes the condition: TREX1, RNASEH2A, RNASEH2B, RNASEH2C, SAMHD1, and ADAR genes. Most cases are inherited in an autosomal recessive pattern, although rare autosomal dominant cases have been reported. Treatment is symptomatic and supportive.
What are the signs and symptoms of Aicardi-Goutieres syndrome type 1? The Human Phenotype Ontology provides the following list of signs and symptoms for Aicardi-Goutieres syndrome type 1. If the information is available, the table below includes how often the symptom is seen in people with this condition. You can use the MedlinePlus Medical Dictionary to look up the definitions for these medical terms. Signs and Symptoms Approximate number of patients (when available) Hepatomegaly 5% Splenomegaly 5% Abnormality of extrapyramidal motor function - Acrocyanosis - Autosomal dominant inheritance - Autosomal recessive inheritance - Cerebral atrophy - Chilblain lesions - Chronic CSF lymphocytosis - Deep white matter hypodensities - Dystonia - Elevated hepatic transaminases - Feeding difficulties in infancy - Fever - Hepatosplenomegaly - Increased CSF interferon alpha - Intellectual disability, profound - Leukoencephalopathy - Morphological abnormality of the pyramidal tract - Multiple gastric polyps - Muscular hypotonia of the trunk - Nystagmus - Petechiae - Poor head control - Progressive encephalopathy - Progressive microcephaly - Prolonged neonatal jaundice - Purpura - Seizures - Spasticity - Strabismus - Thrombocytopenia - The Human Phenotype Ontology (HPO) has collected information on how often a sign or symptom occurs in a condition. Much of this information comes from Orphanet, a European rare disease database. The frequency of a sign or symptom is usually listed as a rough estimate of the percentage of patients who have that feature. The frequency may also be listed as a fraction. The first number of the fraction is how many people had the symptom, and the second number is the total number of people who were examined in one study. For example, a frequency of 25/25 means that in a study of 25 people all patients were found to have that symptom. Because these frequencies are based on a specific study, the fractions may be different if another group of patients are examined. Sometimes, no information on frequency is available. In these cases, the sign or symptom may be rare or common.