sarnsrun/medquad huggingface dataset:
Topic: Pompe disease
Question: How many people are affected by Pompe disease ?
Answer: Pompe disease affects about 1 in 40,000 people in the United States. The incidence of this disorder varies among different ethnic groups.
Source: GHR
Topic: Pompe disease
Question: What are the genetic changes related to Pompe disease ?
Answer: Mutations in the GAA gene cause Pompe disease. The GAA gene provides instructions for producing an enzyme called acid alpha-glucosidase (also known as acid maltase). This enzyme is active in lysosomes, which are structures that serve as recycling centers within cells. The enzyme normally breaks down glycogen into a simpler sugar called glucose, which is the main energy source for most cells.  Mutations in the GAA gene prevent acid alpha-glucosidase from breaking down glycogen effectively, which allows this sugar to build up to toxic levels in lysosomes. This buildup damages organs and tissues throughout the body, particularly the muscles, leading to the progressive signs and symptoms of Pompe disease.
Source: GHR
Topic: Pompe disease
Question: Is Pompe disease 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: Pompe disease
Question: What are the treatments for Pompe disease ?
Answer: These resources address the diagnosis or management of Pompe disease:  - Baby's First Test  - Gene Review: Gene Review: Glycogen Storage Disease Type II (Pompe Disease)  - Genetic Testing Registry: Glycogen storage disease type II, infantile  - Genetic Testing Registry: Glycogen storage disease, type II   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: dentatorubral-pallidoluysian atrophy
Question: What is (are) dentatorubral-pallidoluysian atrophy ?
Answer: Dentatorubral-pallidoluysian atrophy, commonly known as DRPLA, is a progressive brain disorder that causes involuntary movements, mental and emotional problems, and a decline in thinking ability. The average age of onset of DRPLA is 30 years, but this condition can appear anytime from infancy to mid-adulthood.  The signs and symptoms of DRPLA differ somewhat between affected children and adults. When DRPLA appears before age 20, it most often involves episodes of involuntary muscle jerking or twitching (myoclonus), seizures, behavioral changes, intellectual disability, and problems with balance and coordination (ataxia). When DRPLA begins after age 20, the most frequent signs and symptoms are ataxia, uncontrollable movements of the limbs (choreoathetosis), psychiatric symptoms such as delusions, and deterioration of intellectual function (dementia).
Source: GHR
Topic: dentatorubral-pallidoluysian atrophy
Question: How many people are affected by dentatorubral-pallidoluysian atrophy ?
Answer: DRPLA is most common in the Japanese population, where it has an estimated incidence of 2 to 7 per million people. This condition has also been seen in families from North America and Europe.  Although DRPLA is rare in the United States, it has been studied in a large African American family from the Haw River area of North Carolina. When the family was first identified, researchers named the disorder Haw River syndrome. Later, researchers determined that Haw River syndrome and DRPLA are the same condition.
Source: GHR
Topic: dentatorubral-pallidoluysian atrophy
Question: What are the genetic changes related to dentatorubral-pallidoluysian atrophy ?
Answer: DRPLA is caused by a mutation in the ATN1 gene. This gene provides instructions for making a protein called atrophin 1. Although the function of atrophin 1 is unclear, it likely plays an important role in nerve cells (neurons) in many areas of the brain.  The ATN1 mutation that underlies DRPLA involves a DNA segment known as a CAG trinucleotide repeat. This segment is made up of a series of three DNA building blocks (cytosine, adenine, and guanine) that appear multiple times in a row. Normally, this segment is repeated 6 to 35 times within the ATN1 gene. In people with DRPLA, the CAG segment is repeated at least 48 times, and the repeat region may be two or three times its usual length. The abnormally long CAG trinucleotide repeat changes the structure of atrophin 1. This altered protein accumulates in neurons and interferes with normal cell functions. The dysfunction and eventual death of these neurons lead to uncontrolled movements, intellectual decline, and the other characteristic features of DRPLA.
Source: GHR
Topic: dentatorubral-pallidoluysian atrophy
Question: Is dentatorubral-pallidoluysian atrophy 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 most cases, an affected person has one parent with the condition.  As the altered ATN1 gene is passed from one generation to the next, the size of the CAG trinucleotide repeat often increases in size. Larger repeat expansions are usually associated with an earlier onset of the disorder and more severe signs and symptoms. This phenomenon is called anticipation. Anticipation tends to be more prominent when the ATN1 gene is inherited from a person's father (paternal inheritance) than when it is inherited from a person's mother (maternal inheritance).
Source: GHR
Topic: dentatorubral-pallidoluysian atrophy
Question: What are the treatments for dentatorubral-pallidoluysian atrophy ?
Answer: These resources address the diagnosis or management of DRPLA:  - Gene Review: Gene Review: DRPLA  - Genetic Testing Registry: Dentatorubral pallidoluysian atrophy  - MedlinePlus Encyclopedia: Dementia  - MedlinePlus Encyclopedia: Epilepsy   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: X-linked sideroblastic anemia and ataxia
Question: What is (are) X-linked sideroblastic anemia and ataxia ?
Answer: X-linked sideroblastic anemia and ataxia is a rare condition characterized by a blood disorder called sideroblastic anemia and movement problems known as ataxia. This condition occurs only in males.  Sideroblastic anemia results when developing red blood cells called erythroblasts do not make enough hemoglobin, which is the protein that carries oxygen in the blood. People with X-linked sideroblastic anemia and ataxia have mature red blood cells that are smaller than normal (microcytic) and appear pale (hypochromic) because of the shortage of hemoglobin. This disorder also leads to an abnormal accumulation of iron in red blood cells. The iron-loaded erythroblasts, which are present in bone marrow, are called ring sideroblasts. These abnormal cells give the condition its name. Unlike other forms of sideroblastic anemia, X-linked sideroblastic anemia and ataxia does not cause a potentially dangerous buildup of iron in the body. The anemia is typically mild and usually does not cause any symptoms.  X-linked sideroblastic anemia and ataxia causes problems with balance and coordination that appear early in life. The ataxia primarily affects the trunk, making it difficult to sit, stand, and walk unassisted. In addition to ataxia, people with this condition often have trouble coordinating movements that involve judging distance or scale (dysmetria) and find it difficult to make rapid, alternating movements (dysdiadochokinesis). Mild speech difficulties (dysarthria), tremor, and abnormal eye movements have also been reported in some affected individuals.
Source: GHR
Topic: X-linked sideroblastic anemia and ataxia
Question: How many people are affected by X-linked sideroblastic anemia and ataxia ?
Answer: X-linked sideroblastic anemia and ataxia is a rare disorder; only a few affected families have been reported.
Source: GHR
Topic: X-linked sideroblastic anemia and ataxia
Question: What are the genetic changes related to X-linked sideroblastic anemia and ataxia ?
Answer: Mutations in the ABCB7 gene cause X-linked sideroblastic anemia and ataxia. The ABCB7 gene provides instructions for making a protein that is critical for heme production. Heme is a component of the hemoglobin protein, which is vital for supplying oxygen to the entire body. The ABCB7 protein also plays a role in the formation of certain proteins containing clusters of iron and sulfur atoms. Overall, researchers believe that the ABCB7 protein helps maintain an appropriate balance of iron (iron homeostasis) in developing red blood cells.  ABCB7 mutations slightly alter the structure of the ABCB7 protein, disrupting its usual role in heme production and iron homeostasis. Anemia results when heme cannot be produced normally, and therefore not enough hemoglobin is made. It is unclear how changes in the ABCB7 gene lead to ataxia and other problems with movement.
Source: GHR
Topic: X-linked sideroblastic anemia and ataxia
Question: Is X-linked sideroblastic anemia and ataxia inherited ?
Answer: This condition is inherited in an X-linked recessive pattern. The gene associated with this condition is located on the X chromosome, which is one of the two sex chromosomes. In males (who have only one X chromosome), one altered copy of the gene in each cell is sufficient to cause the condition. In females (who have two X chromosomes), a mutation would have to occur in both copies of the gene to cause the disorder. Because it is unlikely that females will have two altered copies of this gene, males are affected by X-linked recessive disorders much more frequently than females. A characteristic of X-linked inheritance is that fathers cannot pass X-linked traits to their sons.  In X-linked recessive inheritance, a female with one altered copy of the gene in each cell is called a carrier. Carriers of an ABCB7 mutation can pass on the mutated gene but do not develop ataxia or other health problems associated with X-linked sideroblastic anemia and ataxia. However, carriers may have abnormally small, pale red blood cells and related changes that can be detected with a blood test.
Source: GHR
Topic: X-linked sideroblastic anemia and ataxia
Question: What are the treatments for X-linked sideroblastic anemia and ataxia ?
Answer: These resources address the diagnosis or management of X-linked sideroblastic anemia and ataxia:  - Gene Review: Gene Review: X-Linked Sideroblastic Anemia and Ataxia  - Genetic Testing Registry: Anemia sideroblastic and spinocerebellar ataxia  - MedlinePlus Encyclopedia: Anemia   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: hypercholesterolemia
Question: What is (are) hypercholesterolemia ?
Answer: Hypercholesterolemia is a condition characterized by very high levels of cholesterol in the blood. Cholesterol is a waxy, fat-like substance that is produced in the body and obtained from foods that come from animals (particularly egg yolks, meat, poultry, fish, and dairy products). The body needs this substance to build cell membranes, make certain hormones, and produce compounds that aid in fat digestion. Too much cholesterol, however, increases a person's risk of developing heart disease.  People with hypercholesterolemia have a high risk of developing a form of heart disease called coronary artery disease. This condition occurs when excess cholesterol in the bloodstream is deposited in the walls of blood vessels, particularly in the arteries that supply blood to the heart (coronary arteries). The abnormal buildup of cholesterol forms clumps (plaque) that narrow and harden artery walls. As the clumps get bigger, they can clog the arteries and restrict the flow of blood to the heart. The buildup of plaque in coronary arteries causes a form of chest pain called angina and greatly increases a person's risk of having a heart attack.  Inherited forms of hypercholesterolemia can also cause health problems related to the buildup of excess cholesterol in other tissues. If cholesterol accumulates in tendons, it causes characteristic growths called tendon xanthomas. These growths most often affect the Achilles tendons and tendons in the hands and fingers. Yellowish cholesterol deposits under the skin of the eyelids are known as xanthelasmata. Cholesterol can also accumulate at the edges of the clear, front surface of the eye (the cornea), leading to a gray-colored ring called an arcus cornealis.
Source: GHR
Topic: hypercholesterolemia
Question: How many people are affected by hypercholesterolemia ?
Answer: More than 34 million American adults have elevated blood cholesterol levels (higher than 240 mg/dL). Inherited forms of hypercholesterolemia, which cause even higher levels of cholesterol, occur less frequently. The most common inherited form of high cholesterol is called familial hypercholesterolemia. This condition affects about 1 in 500 people in most countries. Familial hypercholesterolemia occurs more frequently in certain populations, including Afrikaners in South Africa, French Canadians, Lebanese, and Finns.
Source: GHR
Topic: hypercholesterolemia
Question: What are the genetic changes related to hypercholesterolemia ?
Answer: Mutations in the APOB, LDLR, LDLRAP1, and PCSK9 genes cause hypercholesterolemia.  High blood cholesterol levels typically result from a combination of genetic and environmental risk factors. Lifestyle choices including diet, exercise, and tobacco smoking strongly influence the amount of cholesterol in the blood. Additional factors that impact cholesterol levels include a person's gender, age, and health problems such as diabetes and obesity. A small percentage of all people with high cholesterol have an inherited form of hypercholesterolemia. The most common cause of inherited high cholesterol is a condition known as familial hypercholesterolemia, which results from mutations in the LDLR gene.  The LDLR gene provides instructions for making a protein called a low-density lipoprotein receptor. This type of receptor binds to particles called low-density lipoproteins (LDLs), which are the primary carriers of cholesterol in the blood. By removing low-density lipoproteins from the bloodstream, these receptors play a critical role in regulating cholesterol levels. Some LDLR mutations reduce the number of low-density lipoprotein receptors produced within cells. Other mutations disrupt the receptors' ability to remove low-density lipoproteins from the bloodstream. As a result, people with mutations in the LDLR gene have very high levels of blood cholesterol. As the excess cholesterol circulates through the bloodstream, it is deposited abnormally in tissues such as the skin, tendons, and arteries that supply blood to the heart.  Less commonly, hypercholesterolemia can be caused by mutations in the APOB, LDLRAP1, or PCSK9 gene. Changes in the APOB gene result in a form of inherited hypercholesterolemia known as familial defective apolipoprotein B-100 (FDB). LDLRAP1 mutations are responsible for another type of inherited high cholesterol, autosomal recessive hypercholesterolemia (ARH). Proteins produced from the APOB, LDLRAP1, and PCSK9 genes are essential for the normal function of low-density lipoprotein receptors. Mutations in any of these genes prevent the cell from making functional receptors or alter the receptors' function. Hypercholesterolemia results when low-density lipoprotein receptors are unable to remove cholesterol from the blood effectively.  Researchers are working to identify and characterize additional genes that may influence cholesterol levels and the risk of heart disease in people with hypercholesterolemia.
Source: GHR
Topic: hypercholesterolemia
Question: Is hypercholesterolemia inherited ?
Answer: Most cases of high cholesterol are not caused by a single inherited condition, but result from a combination of lifestyle choices and the effects of variations in many genes.  Inherited forms of hypercholesterolemia resulting from mutations in the LDLR, APOB, or PCSK9 gene have an autosomal dominant pattern of inheritance. Autosomal dominant inheritance means one copy of an altered gene in each cell is sufficient to cause the disorder. An affected person typically inherits one altered copy of the gene from an affected parent and one normal copy of the gene from the other parent.  Rarely, a person with familial hypercholesterolemia is born with two mutated copies of the LDLR gene. This situation occurs when the person has two affected parents, each of whom passes on one altered copy of the gene. The presence of two LDLR mutations results in a more severe form of hypercholesterolemia that usually appears in childhood.  When hypercholesterolemia is caused by mutations in the LDLRAP1 gene, the condition is inherited in an autosomal recessive pattern. Autosomal recessive inheritance means the condition results from two altered copies of the gene in each cell. The parents of an individual with autosomal recessive hypercholesterolemia each carry one copy of the altered gene, but their blood cholesterol levels are usually in the normal range.
Source: GHR
Topic: hypercholesterolemia
Question: What are the treatments for hypercholesterolemia ?
Answer: These resources address the diagnosis or management of hypercholesterolemia:  - Gene Review: Gene Review: Familial Hypercholesterolemia  - GeneFacts: Familial Hypercholesterolemia: Diagnosis  - GeneFacts: Familial Hypercholesterolemia: Management  - Genetic Testing Registry: Familial hypercholesterolemia  - Genetic Testing Registry: Hypercholesterolemia, autosomal dominant, 3  - Genetic Testing Registry: Hypercholesterolemia, autosomal dominant, type B  - Genetic Testing Registry: Hypercholesterolemia, autosomal recessive  - Genomics Education Programme (UK)  - MedlinePlus Encyclopedia: Familial hypercholesterolemia  - MedlinePlus Encyclopedia: High blood cholesterol and triglycerides  - MedlinePlus Encyclopedia: Xanthoma   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: glycogen storage disease type III
Question: What is (are) glycogen storage disease type III ?
Answer: Glycogen storage disease type III (also known as GSDIII or Cori disease) is an inherited disorder caused by the buildup of a complex sugar called glycogen in the body's cells. The accumulated glycogen is structurally abnormal and impairs the function of certain organs and tissues, especially the liver and muscles.  GSDIII is divided into types IIIa, IIIb, IIIc, and IIId, which are distinguished by their pattern of signs and symptoms. GSD types IIIa and IIIc mainly affect the liver and muscles, and GSD types IIIb and IIId typically affect only the liver. It is very difficult to distinguish between the types of GSDIII that affect the same tissues. GSD types IIIa and IIIb are the most common forms of this condition.  Beginning in infancy, individuals with any type of GSDIII may have low blood sugar (hypoglycemia), excess amounts of fats in the blood (hyperlipidemia), and elevated blood levels of liver enzymes. As they get older, children with this condition typically develop an enlarged liver (hepatomegaly). Liver size usually returns to normal during adolescence, but some affected individuals develop chronic liver disease (cirrhosis) and liver failure later in life. People with GSDIII often have slow growth because of their liver problems, which can lead to short stature. In a small percentage of people with GSDIII, noncancerous (benign) tumors called adenomas may form in the liver.  Individuals with GSDIIIa may develop muscle weakness (myopathy) later in life. These muscle problems can affect both heart (cardiac) muscle and the muscles that are used for movement (skeletal muscles). Muscle involvement varies greatly among affected individuals. The first signs and symptoms are typically poor muscle tone (hypotonia) and mild myopathy in early childhood. The myopathy may become severe by early to mid-adulthood. Some people with GSDIIIa have a weakened heart muscle (cardiomyopathy), but affected individuals usually do not experience heart failure. Other people affected with GSDIIIa have no cardiac muscle problems.
Source: GHR
Topic: glycogen storage disease type III
Question: How many people are affected by glycogen storage disease type III ?
Answer: The incidence of GSDIII in the United States is 1 in 100,000 individuals. This condition is seen more frequently in people of North African Jewish ancestry; in this population, 1 in 5,400 individuals are estimated to be affected.  GSDIIIa is the most common form of GSDIII, accounting for about 85 percent of all cases. GSDIIIb accounts for about 15 percent of cases. GSD types IIIc and IIId are very rare, and their signs and symptoms are poorly defined. Only a small number of affected individuals have been suspected to have GSD types IIIc and IIId.
Source: GHR
Topic: glycogen storage disease type III
Question: What are the genetic changes related to glycogen storage disease type III ?
Answer: Mutations in the AGL gene cause GSDIII. The AGL gene provides instructions for making the glycogen debranching enzyme. This enzyme is involved in the breakdown of glycogen, which is a major source of stored energy in the body. Between meals the body breaks down stores of energy, such as glycogen, to use for fuel.  Most AGL gene mutations lead to the production of a nonfunctional glycogen debranching enzyme. These mutations typically cause GSD types IIIa and IIIb. The mutations that cause GSD types IIIc and IIId are thought to lead to the production of an enzyme with reduced function. All AGL gene mutations lead to storage of abnormal, partially broken down glycogen molecules within cells. A buildup of abnormal glycogen damages organs and tissues throughout the body, particularly the liver and muscles, leading to the signs and symptoms of GSDIII.
Source: GHR
Topic: glycogen storage disease type III
Question: Is glycogen storage disease type III 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: glycogen storage disease type III
Question: What are the treatments for glycogen storage disease type III ?
Answer: These resources address the diagnosis or management of glycogen storage disease type III:  - Gene Review: Gene Review: Glycogen Storage Disease Type III  - Genetic Testing Registry: Glycogen storage disease type III   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