sarnsrun/medquad huggingface dataset:
Topic: autoimmune polyglandular syndrome, type 1
Question: What is (are) autoimmune polyglandular syndrome, type 1 ?
Answer: Autoimmune polyglandular syndrome, type 1 is an inherited condition that affects many of the body's organs. It is one of many autoimmune diseases, which are disorders that occur when the immune system malfunctions and attacks the body's tissues and organs by mistake.  In most cases, the signs and symptoms of autoimmune polyglandular syndrome, type 1 begin in childhood or adolescence. This condition is characterized by three specific features: mucocutaneous candidiasis, hypoparathyroidism, and Addison disease. Affected individuals typically have at least two of these features, and many have all three.  Mucocutaneous candidiasis is a fungal infection that affects the skin and mucous membranes, such as the moist lining of the nose and mouth. In children with autoimmune polyglandular syndrome, type 1, these infections last a long time and tend to recur. Many affected children also develop hypoparathyroidism, which is a malfunction of the parathyroid glands. These glands secrete a hormone that regulates the body's use of calcium and phosphorus. Hypoparathyroidism can cause a tingling sensation in the lips, fingers, and toes; muscle pain and cramping; weakness; and fatigue. The third major feature, Addison disease, results from a malfunction of the small hormone-producing glands on top of each kidney (adrenal glands). The main features of Addison disease include fatigue, muscle weakness, loss of appetite, weight loss, low blood pressure, and changes in skin coloring.  Autoimmune polyglandular syndrome, type 1 can cause a variety of additional signs and symptoms, although they occur less often. Complications of this disorder can affect the skin and nails, the gonads (ovaries and testicles), the eyes, a butterfly-shaped gland at the base of the neck called the thyroid, and the digestive system. Type 1 diabetes also occurs in some patients with this condition.
Source: GHR
Topic: autoimmune polyglandular syndrome, type 1
Question: How many people are affected by autoimmune polyglandular syndrome, type 1 ?
Answer: Autoimmune polyglandular syndrome, type 1 is thought to be a rare condition, with about 500 cases reported worldwide. This condition occurs more frequently in certain populations, including Iranian Jews, Sardinians, and Finns.
Source: GHR
Topic: autoimmune polyglandular syndrome, type 1
Question: What are the genetic changes related to autoimmune polyglandular syndrome, type 1 ?
Answer: Mutations in the AIRE gene cause autoimmune polyglandular syndrome, type 1.  The AIRE gene provides instructions for making a protein called the autoimmune regulator. As its name suggests, this protein plays a critical role in regulating certain aspects of immune system function. Specifically, it helps the body distinguish its own proteins and cells from those of foreign invaders (such as bacteria and viruses). This distinction is critical because to remain healthy, a person's immune system must be able to identify and destroy potentially harmful invaders while sparing the body's normal tissues.  Mutations in the AIRE gene reduce or eliminate the function of the autoimmune regulator protein. Without enough of this protein, the immune system can turn against itself and attack the body's own organs. This reaction, which is known as autoimmunity, results in inflammation and can damage otherwise healthy cells and tissues. Damage to the adrenal glands, parathyroid glands, and other organs underlies many of the major features of autoimmune polyglandular syndrome, type 1. It remains unclear why people with this condition tend to get candidiasis infections.  Although most of the characteristic features of autoimmune polyglandular syndrome, type 1 result from mutations in the AIRE gene, researchers believe that variations in other genes may help explain why the signs and symptoms of this condition can vary among affected individuals.
Source: GHR
Topic: autoimmune polyglandular syndrome, type 1
Question: Is autoimmune polyglandular syndrome, type 1 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: autoimmune polyglandular syndrome, type 1
Question: What are the treatments for autoimmune polyglandular syndrome, type 1 ?
Answer: These resources address the diagnosis or management of autoimmune polyglandular syndrome, type 1:  - Genetic Testing Registry: Autoimmune polyglandular syndrome type 1, autosomal dominant  - Genetic Testing Registry: Autoimmune polyglandular syndrome type 1, with reversible metaphyseal dysplasia  - Genetic Testing Registry: Polyglandular autoimmune syndrome, type 1  - MedlinePlus Encyclopedia: Addison's Disease  - MedlinePlus Encyclopedia: Autoimmune Disorders  - MedlinePlus Encyclopedia: Cutaneous Candidiasis  - MedlinePlus Encyclopedia: Hypoparathyroidism   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: progressive familial intrahepatic cholestasis
Question: What is (are) progressive familial intrahepatic cholestasis ?
Answer: Progressive familial intrahepatic cholestasis (PFIC) is a disorder that causes progressive liver disease, which typically leads to liver failure. In people with PFIC, liver cells are less able to secrete a digestive fluid called bile. The buildup of bile in liver cells causes liver disease in affected individuals.  Signs and symptoms of PFIC typically begin in infancy and are related to bile buildup and liver disease. Specifically, affected individuals experience severe itching, yellowing of the skin and whites of the eyes (jaundice), failure to gain weight and grow at the expected rate (failure to thrive), high blood pressure in the vein that supplies blood to the liver (portal hypertension), and an enlarged liver and spleen (hepatosplenomegaly).  There are three known types of PFIC: PFIC1, PFIC2, and PFIC3. The types are also sometimes described as shortages of particular proteins needed for normal liver function. Each type has a different genetic cause.  In addition to signs and symptoms related to liver disease, people with PFIC1 may have short stature, deafness, diarrhea, inflammation of the pancreas (pancreatitis), and low levels of fat-soluble vitamins (vitamins A, D, E, and K) in the blood. Affected individuals typically develop liver failure before adulthood.  The signs and symptoms of PFIC2 are typically related to liver disease only; however, these signs and symptoms tend to be more severe than those experienced by people with PFIC1. People with PFIC2 often develop liver failure within the first few years of life. Additionally, affected individuals are at increased risk of developing a type of liver cancer called hepatocellular carcinoma.  Most people with PFIC3 have signs and symptoms related to liver disease only. Signs and symptoms of PFIC3 usually do not appear until later in infancy or early childhood; rarely, people are diagnosed in early adulthood. Liver failure can occur in childhood or adulthood in people with PFIC3.
Source: GHR
Topic: progressive familial intrahepatic cholestasis
Question: How many people are affected by progressive familial intrahepatic cholestasis ?
Answer: PFIC is estimated to affect 1 in 50,000 to 100,000 people worldwide. PFIC type 1 is much more common in the Inuit population of Greenland and the Old Order Amish population of the United States.
Source: GHR
Topic: progressive familial intrahepatic cholestasis
Question: What are the genetic changes related to progressive familial intrahepatic cholestasis ?
Answer: Mutations in the ATP8B1, ABCB11, and ABCB4 genes can cause PFIC.  ATP8B1 gene mutations cause PFIC1. The ATP8B1 gene provides instructions for making a protein that helps to maintain an appropriate balance of bile acids, a component of bile. This process, known as bile acid homeostasis, is critical for the normal secretion of bile and the proper functioning of liver cells. In its role in maintaining bile acid homeostasis, some researchers believe that the ATP8B1 protein is involved in moving certain fats across cell membranes. Mutations in the ATP8B1 gene result in the buildup of bile acids in liver cells, damaging these cells and causing liver disease. The ATP8B1 protein is found throughout the body, but it is unclear how a lack of this protein causes short stature, deafness, and other signs and symptoms of PFIC1.  Mutations in the ABCB11 gene are responsible for PFIC2. The ABCB11 gene provides instructions for making a protein called the bile salt export pump (BSEP). This protein is found in the liver, and its main role is to move bile salts (a component of bile) out of liver cells. Mutations in the ABCB11 gene result in the buildup of bile salts in liver cells, damaging these cells and causing liver disease.  ABCB4 gene mutations cause PFIC3. The ABCB4 gene provides instructions for making a protein that moves certain fats called phospholipids across cell membranes. Outside liver cells, phospholipids attach (bind) to bile acids. Large amounts of bile acids can be toxic when they are not bound to phospholipids. Mutations in the ABCB4 gene lead to a lack of phospholipids available to bind to bile acids. A buildup of free bile acids damages liver cells and leads to liver disease.  Some people with PFIC do not have a mutation in the ATP8B1, ABCB11, or ABCB4 gene. In these cases, the cause of the condition is unknown.
Source: GHR
Topic: progressive familial intrahepatic cholestasis
Question: Is progressive familial intrahepatic cholestasis 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: progressive familial intrahepatic cholestasis
Question: What are the treatments for progressive familial intrahepatic cholestasis ?
Answer: These resources address the diagnosis or management of progressive familial intrahepatic cholestasis:  - Gene Review: Gene Review: ATP8B1 Deficiency  - Genetic Testing Registry: Progressive familial intrahepatic cholestasis 2  - Genetic Testing Registry: Progressive familial intrahepatic cholestasis 3  - Genetic Testing Registry: Progressive intrahepatic cholestasis  - MedlinePlus Encyclopedia: Cholestasis  - MedlinePlus Encyclopedia: Hepatocellular Carcinoma   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: hyperlysinemia
Question: What is (are) hyperlysinemia ?
Answer: Hyperlysinemia is an inherited condition characterized by elevated blood levels of the amino acid lysine, a building block of most proteins. Hyperlysinemia is caused by the shortage (deficiency) of the enzyme that breaks down lysine. Hyperlysinemia typically causes no health problems, and most people with elevated lysine levels are unaware that they have this condition. Rarely, people with hyperlysinemia have intellectual disability or behavioral problems. It is not clear whether these problems are due to hyperlysinemia or another cause.
Source: GHR
Topic: hyperlysinemia
Question: How many people are affected by hyperlysinemia ?
Answer: The incidence of hyperlysinemia is unknown.
Source: GHR
Topic: hyperlysinemia
Question: What are the genetic changes related to hyperlysinemia ?
Answer: Mutations in the AASS gene cause hyperlysinemia. The AASS gene provides instructions for making an enzyme called aminoadipic semialdehyde synthase. This enzyme performs two functions in the breakdown of lysine. First, the enzyme breaks down lysine to a molecule called saccharopine. It then breaks down saccharopine to a molecule called alpha-aminoadipate semialdehyde.  Mutations in the AASS gene that impair the breakdown of lysine result in elevated levels of lysine in the blood and urine. These increased levels of lysine do not appear to have any negative effects on the body.  When mutations in the AASS gene impair the breakdown of saccharopine, this molecule builds up in blood and urine. This buildup is sometimes referred to as saccharopinuria, which is considered to be a variant of hyperlysinemia. It is unclear if saccharopinuria causes any symptoms.
Source: GHR
Topic: hyperlysinemia
Question: Is hyperlysinemia 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: hyperlysinemia
Question: What are the treatments for hyperlysinemia ?
Answer: These resources address the diagnosis or management of hyperlysinemia:  - Genetic Testing Registry: Hyperlysinemia  - Genetic Testing Registry: Saccharopinuria   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: frontonasal dysplasia
Question: What is (are) frontonasal dysplasia ?
Answer: Frontonasal dysplasia is a condition that results from abnormal development of the head and face before birth. People with frontonasal dysplasia have at least two of the following features: widely spaced eyes (ocular hypertelorism); a broad nose; a slit (cleft) in one or both sides of the nose; no nasal tip; a central cleft involving the nose, upper lip, or roof of the mouth (palate); incomplete formation of the front of the skull with skin covering the head where bone should be (anterior cranium bifidum occultum); or a widow's peak hairline.  Other features of frontonasal dysplasia can include additional facial malformations, absence or malformation of the tissue that connects the left and right halves of the brain (the corpus callosum), and intellectual disability.  There are at least three types of frontonasal dysplasia that are distinguished by their genetic causes and their signs and symptoms. In addition to the features previously described, each type of frontonasal dysplasia is associated with other distinctive features. Individuals with frontonasal dysplasia type 1 typically have abnormalities of the nose, a long area between the nose and upper lip (philtrum), and droopy upper eyelids (ptosis). Individuals with frontonasal dysplasia type 2 can have hair loss (alopecia) and an enlarged opening in the two bones that make up much of the top and sides of the skull (enlarged parietal foramina). Males with this form of the condition often have genital abnormalities. Features of frontonasal dysplasia type 3 include eyes that are missing (anophthalmia) or very small (microphthalmia) and low-set ears that are rotated backward. Frontonasal dysplasia type 3 is typically associated with the most severe facial abnormalities, but the severity of the condition varies widely, even among individuals with the same type.  Life expectancy of affected individuals depends on the severity of the malformations and whether or not surgical intervention can improve associated health problems, such as breathing and feeding problems caused by the facial clefts.
Source: GHR
Topic: frontonasal dysplasia
Question: How many people are affected by frontonasal dysplasia ?
Answer: Frontonasal dysplasia is likely a rare condition; at least 100 cases have been reported in the scientific literature.
Source: GHR
Topic: frontonasal dysplasia
Question: What are the genetic changes related to frontonasal dysplasia ?
Answer: Mutations in the ALX3 gene cause frontonasal dysplasia type 1, ALX4 gene mutations cause type 2, and ALX1 gene mutations cause type 3. These genes provide instructions for making proteins that are necessary for normal development, particularly of the head and face, before birth. The proteins produced from the ALX3, ALX4, and ALX1 genes are transcription factors, which means they attach (bind) to DNA and control the activity of certain genes. Specifically, the proteins control the activity of genes that regulate cell growth and division (proliferation) and movement (migration), ensuring that cells grow and stop growing at specific times and that they are positioned correctly during development. The ALX3 and ALX4 proteins are primarily involved in the development of the nose and surrounding tissues, while the ALX1 protein is involved in development of the eyes, nose, and mouth.  ALX3, ALX4, or ALX1 gene mutations reduce or eliminate function of the respective protein. As a result, the regulation of cell organization during development of the head and face is disrupted, particularly affecting the middle of the face. Abnormal development of the nose, philtrum, and upper lip leads to the facial clefts that characterize this disorder. This abnormal development also interferes with the proper formation of the skull and other facial structures, leading to anterior cranium bifidum occultum, hypertelorism, and other features of frontonasal dysplasia.
Source: GHR
Topic: frontonasal dysplasia
Question: Is frontonasal dysplasia inherited ?
Answer: When frontonasal dysplasia is caused by mutations in the ALX1 or ALX3 gene, it 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.  When ALX4 gene mutations cause frontonasal dysplasia, the 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, an affected person inherits the mutation from one affected parent. Other cases result from new mutations in the gene and occur in people with no history of the disorder in their family.
Source: GHR
Topic: frontonasal dysplasia
Question: What are the treatments for frontonasal dysplasia ?
Answer: These resources address the diagnosis or management of frontonasal dysplasia:  - Genetic Testing Registry: Frontonasal dysplasia 1  - Genetic Testing Registry: Frontonasal dysplasia 2  - Genetic Testing Registry: Frontonasal dysplasia 3  - KidsHealth from Nemours: Cleft Lip and Palate  - MedlinePlus Encyclopedia: Head and Face Reconstruction  - Mount Sinai Hospital: Cleft Nasal Deformity  - University of Rochester Medical Center: Nasal Alveolar Molding   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: progressive familial heart block
Question: What is (are) progressive familial heart block ?
Answer: Progressive familial heart block is a genetic condition that alters the normal beating of the heart. A normal heartbeat is controlled by electrical signals that move through the heart in a highly coordinated way. These signals begin in a specialized cluster of cells called the sinoatrial node (the heart's natural pacemaker) located in the heart's upper chambers (the atria). From there, a group of cells called the atrioventricular node carries the electrical signals to another cluster of cells called the bundle of His. This bundle separates into multiple thin spindles called bundle branches, which carry electrical signals into the heart's lower chambers (the ventricles). Electrical impulses move from the sinoatrial node down to the bundle branches, stimulating a normal heartbeat in which the ventricles contract slightly later than the atria.  Heart block occurs when the electrical signaling is obstructed anywhere from the atria to the ventricles. In people with progressive familial heart block, the condition worsens over time: early in the disorder, the electrical signals are partially blocked, but the block eventually becomes complete, preventing any signals from passing through the heart. Partial heart block causes a slow or irregular heartbeat (bradycardia or arrhythmia, respectively), and can lead to the buildup of scar tissue (fibrosis) in the cells that carry electrical impulses. Fibrosis contributes to the development of complete heart block, resulting in uncoordinated electrical signaling between the atria and the ventricles and inefficient pumping of blood in the heart. Complete heart block can cause a sensation of fluttering or pounding in the chest (palpitations), shortness of breath, fainting (syncope), or sudden cardiac arrest and death.  Progressive familial heart block can be divided into type I and type II, with type I being further divided into types IA and IB. These types differ in where in the heart signaling is interrupted and the genetic cause. In types IA and IB, the heart block originates in the bundle branch, and in type II, the heart block originates in the atrioventricular node. The different types of progressive familial heart block have similar signs and symptoms.  Most cases of heart block are not genetic and are not considered progressive familial heart block. The most common cause of heart block is fibrosis of the heart, which occurs as a normal process of aging. Other causes of heart block can include the use of certain medications or an infection of the heart tissue.
Source: GHR
Topic: progressive familial heart block
Question: How many people are affected by progressive familial heart block ?
Answer: The prevalence of progressive familial heart block is unknown. In the United States, about 1 in 5,000 individuals have complete heart block from any cause; worldwide, about 1 in 2,500 individuals have complete heart block.
Source: GHR
Topic: progressive familial heart block
Question: What are the genetic changes related to progressive familial heart block ?
Answer: Mutations in the SCN5A and TRPM4 genes cause most cases of progressive familial heart block types IA and IB, respectively. The proteins produced from these genes are channels that allow positively charged atoms (cations) into and out of cells. Both channels are abundant in heart (cardiac) cells and play key roles in these cells' ability to generate and transmit electrical signals. These channels play a major role in signaling the start of each heartbeat, coordinating the contractions of the atria and ventricles, and maintaining a normal heart rhythm.  The SCN5A and TRPM4 gene mutations that cause progressive familial heart block alter the normal function of the channels. As a result of these channel alterations, cardiac cells have difficulty producing and transmitting the electrical signals that are necessary to coordinate normal heartbeats, leading to heart block. Death of these impaired cardiac cells over time can lead to fibrosis, worsening the heart block.  Mutations in other genes, some of which are unknown, account for the remaining cases of progressive familial heart block.
Source: GHR
Topic: progressive familial heart block
Question: Is progressive familial heart block inherited ?
Answer: Progressive familial heart block types I and II are inherited in an autosomal dominant pattern, which means one copy of an altered gene in each cell is sufficient to cause the disorder. Some people with TRPM4 gene mutations never develop the condition, a situation known as reduced penetrance.  In most cases, an affected person has one parent with progressive familial heart block.
Source: GHR