umarjan11/Medical-qna huggingface dataset:
Question: What are the symptoms of Diffuse gastric cancer ?

Answer: What are the signs and symptoms of Diffuse gastric cancer? Signs and symptoms of gastric cancer may include indigestion, stomach discomfort, bloating, mild nausea, loss of appetite, and heartburn. In more advanced stages of gastric cancer signs and symptoms may include bloody stool, vomiting, weight loss, stomach pain, jaundice, ascites (fluid in the abdomen), and trouble swallowing. The Human Phenotype Ontology provides the following list of signs and symptoms for Diffuse gastric cancer. 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) Autosomal dominant inheritance - Chronic atrophic gastritis - Stomach cancer - 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.
Question: What are the genetic changes related to purine nucleoside phosphorylase deficiency ?

Answer: Purine nucleoside phosphorylase deficiency is caused by mutations in the PNP gene. The PNP gene provides instructions for making an enzyme called purine nucleoside phosphorylase. This enzyme is found throughout the body but is most active in specialized white blood cells called lymphocytes. These cells protect the body against potentially harmful invaders by making immune proteins called antibodies that tag foreign particles and germs for destruction or by directly attacking virus-infected cells. Lymphocytes are produced in specialized lymphoid tissues including the thymus and lymph nodes and then released into the blood. The thymus is a gland located behind the breastbone; lymph nodes are found throughout the body. Lymphocytes in the blood and in lymphoid tissues make up the immune system.  Purine nucleoside phosphorylase is known as a housekeeping enzyme because it clears away waste molecules that are generated when DNA is broken down. Mutations in the PNP gene reduce or eliminate the activity of purine nucleoside phosphorylase. The resulting excess of waste molecules and further reactions involving them lead to the buildup of a substance called deoxyguanosine triphosphate (dGTP) to levels that are toxic to lymphocytes. Immature lymphocytes in the thymus are particularly vulnerable to a toxic buildup of dGTP, which damages them and triggers their self-destruction (apoptosis). The number of lymphocytes in other lymphoid tissues is also greatly reduced, resulting in the immune deficiency characteristic of purine nucleoside phosphorylase deficiency.
Question: Is Wolf-Hirschhorn syndrome inherited ?

Answer: Between 85 and 90 percent of all cases of Wolf-Hirschhorn syndrome are not inherited. They result from a chromosomal deletion that occurs as a random (de novo) event during the formation of reproductive cells (eggs or sperm) or in early embryonic development. More complex chromosomal rearrangements can also occur as de novo events, which may help explain the variability in the condition's signs and symptoms. De novo chromosomal changes occur in people with no history of the disorder in their family.  A small percentage of all people with Wolf-Hirschhorn syndrome have the disorder as a result of an unusual chromosomal abnormality such as a ring chromosome 4. Ring chromosomes occur when a chromosome breaks in two places and the ends of the chromosome arms fuse together to form a circular structure. In the process, genes near the ends of the chromosome are lost.  In the remaining cases of Wolf-Hirschhorn syndrome, an affected individual inherits a copy of chromosome 4 with a deleted segment. In these cases, one of the individual's parents carries a chromosomal rearrangement between chromosome 4 and another chromosome. This rearrangement is called a balanced translocation. No genetic material is gained or lost in a balanced translocation, so these chromosomal changes usually do not cause any health problems. However, translocations can become unbalanced as they are passed to the next generation. Some people with Wolf-Hirschhorn syndrome inherit an unbalanced translocation that deletes genes near the end of the short arm of chromosome 4. A loss of these genes results in the intellectual disability, slow growth, and other health problems characteristic of this disorder.
Question: What causes Crohn's Disease ?

Answer: The exact cause of Crohn's disease is unknown. Researchers believe the following factors may play a role in causing Crohn's disease:
                
- autoimmune reaction  - genes  - environment
                
Autoimmune reaction. Scientists believe one cause of Crohn's disease may be an autoimmune reactionwhen a person's immune system attacks healthy cells in the body by mistake. Normally, the immune system protects the body from infection by identifying and destroying bacteria, viruses, and other potentially harmful foreign substances. Researchers believe bacteria or viruses can mistakenly trigger the immune system to attack the inner lining of the intestines. This immune system response causes the inflammation, leading to symptoms.
                
Genes. Crohn's disease sometimes runs in families. Research has shown that people who have a parent or sibling with Crohn's disease may be more likely to develop the disease. Researchers continue to study the link between genes and Crohn's disease.
                
Environment. Some studies suggest that certain things in the environment may increase the chance of a person getting Crohn's disease, although the overall chance is low. Nonsteroidal anti-inflammatory drugs,1 antibiotics,2 and oral contraceptives2 may slightly increase the chance of developing Crohn's disease. A high-fat diet may also slightly increase the chance of getting Crohn's disease.3
                
Some people incorrectly believe that eating certain foods, stress, or emotional distress can cause Crohn's disease. Emotional distress and eating certain foods do not cause Crohn's disease. Sometimes the stress of living with Crohn's disease can make symptoms worse. Also, some people may find that certain foods can trigger or worsen their symptoms.
Question: What are the symptoms of Westphal disease ?

Answer: What are the signs and symptoms of Westphal disease? The Human Phenotype Ontology provides the following list of signs and symptoms for Westphal disease. 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 50% Abnormality of the voice 50% Behavioral abnormality 50% Cerebral cortical atrophy 50% Developmental regression 50% EEG abnormality 50% Hypertonia 50% Rigidity 7.5% Abnormality of eye movement - Autosomal dominant inheritance - Bradykinesia - Chorea - Dementia - Depression - Gliosis - Hyperreflexia - Neuronal loss in central nervous system - Personality changes - 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.
Question: Is MECP2 duplication syndrome inherited ?

Answer: Is MECP2 duplication syndrome inherited? MECP2 duplication syndrome is inherited in an X-linked manner. A condition is considered X-linked if the genetic change that causes the condition is located on the X chromosome, one of the two sex chromosomes (the Y chromosome is the other sex chromosome). In males (who have only one X chromosome), a duplication of the MECP2 gene in each cell is sufficient to cause the condition. In females (who have two X chromosomes), a duplication of one of the two copies of the gene typically does not cause the disorder. Early in the development of females, one of the two X chromosomes is randomly and permanently inactivated in each cell (called X-inactivation). X-inactivation prevents female cells from having twice as many functional X chromosomes as males. Because X-inactivation is usually random, the X chromosome inherited from the mother is active in some cells, and the X chromosome inherited from the father is active in other cells. However, when a female has an X chromosome with a duplicated copy of the MECP2 gene, the abnormal chromosome is often preferentially inactivated in many or all cells. This is called "skewed X-inactivation." It prevents some women with an MECP2 duplication from developing features of the duplication since the extra genetic material is not active. In most cases, MECP2 duplication syndrome is inherited from a mother who has no signs or symptoms of the duplication. Rarely, the condition is not inherited and occurs due to a random event during the formation of the egg or sperm, or in early fetal development. When this happens, it is called a de novo duplication (occurring as a new genetic change for the first time in the affected person).
Question: What are the symptoms of Scott Bryant Graham syndrome ?

Answer: What are the signs and symptoms of Scott Bryant Graham syndrome? The Human Phenotype Ontology provides the following list of signs and symptoms for Scott Bryant Graham 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) Abnormal dermatoglyphics 90% Abnormality of calvarial morphology 90% Abnormality of the eyelashes 90% Coarse hair 90% Cognitive impairment 90% Finger syndactyly 90% Hypertrichosis 90% Narrow nasal bridge 90% Short nose 90% Short stature 90% Thick eyebrow 90% Spina bifida occulta 7.5% 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.
Question: What are the symptoms of Lipoic acid synthetase deficiency ?

Answer: What are the signs and symptoms of Lipoic acid synthetase deficiency? The Human Phenotype Ontology provides the following list of signs and symptoms for Lipoic acid synthetase deficiency. 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) Apnea - Autosomal recessive inheritance - Encephalopathy - Feeding difficulties - Flexion contracture - Growth delay - Hypertrophic cardiomyopathy - Increased serum lactate - Lactic acidosis - Microcephaly - Motor delay - Muscular hypotonia - Respiratory insufficiency - Seizures - Severe global developmental delay - Sleep disturbance - Spastic tetraplegia - 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.
Question: What are the symptoms of Spastic paraplegia 17 ?

Answer: What are the signs and symptoms of Spastic paraplegia 17? The Human Phenotype Ontology provides the following list of signs and symptoms for Spastic paraplegia 17. 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) Autosomal dominant inheritance - Babinski sign - First dorsal interossei muscle atrophy - First dorsal interossei muscle weakness - Hyperreflexia - Impaired vibration sensation in the lower limbs - Lower limb muscle weakness - Lower limb spasticity - Pes cavus - Slow progression - Spastic gait - Spastic paraplegia - Thenar muscle atrophy - Thenar muscle weakness - 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.
Question: What causes Pachygyria ?

Answer: What causes pachygyria? Pachygyria, also called "incomplete lissencephaly," may be caused by various non-genetic (environmental) and genetic factors that play a role in impairing the development of the outer region of the brain (the cerebral cortex). The cerebral cortex is responsible for conscious movement and thought, and should have deep convolutions (gyri) and grooves (sulci), which are formed by "infolding" of the cerebral cortex. During normal embryonic growth, immature cells that later develop into specialized nerve cells (neurons) normally migrate to the brain's surface, making several layers of cells. When this process is impaired, the cells don't migrate to their locations, resulting in too few cell layers and absence (agyria) or incomplete development (pachygyria) of gyri. Environmental factors that contribute to the condition may include intrauterine infection during pregnancy (such as a virus), and insufficient flow of oxygenated blood to the brain (ischemia) during fetal development. More than 25 syndromes due to abnormal migration of neurons have been reported; in some of these cases, the genetic cause and pattern of inheritance depends on that of the specific syndrome. Mutations in several genes have been identified in people with abnormalities of cortical development, including the KIF5C, KIF2A, DYNC1H1, WDR62, and TUBG1 genes. Studies have also found that isolated lissencephaly may result from mutations in the LIS1 and XLIS (also called DCX) genes. People interested in learning about the cause of pachygyria in themselves or family members should speak with their health care provider or a a genetics professional.
Question: What are the symptoms of Cataract-microcephaly-failure to thrive-kyphoscoliosis ?

Answer: What are the signs and symptoms of Cataract-microcephaly-failure to thrive-kyphoscoliosis? The Human Phenotype Ontology provides the following list of signs and symptoms for Cataract-microcephaly-failure to thrive-kyphoscoliosis. 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 face - Autosomal recessive inheritance - Cataract - Failure to thrive - Hip dislocation - Intellectual disability, progressive - Intellectual disability, severe - Kyphoscoliosis - Microcephaly - Small for gestational age - 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.
Question: What are the genetic changes related to desmoid tumor ?

Answer: Mutations in the CTNNB1 gene or the APC gene cause desmoid tumors. CTNNB1 gene mutations account for around 85 percent of sporadic desmoid tumors. APC gene mutations cause desmoid tumors associated with familial adenomatous polyposis as well as 10 to 15 percent of sporadic desmoid tumors. Both genes are involved in an important cell signaling pathway that controls the growth and division (proliferation) of cells and the process by which cells mature to carry out specific functions (differentiation).  The CTNNB1 gene provides instructions for making a protein called beta-catenin. As part of the cell-signaling pathway, beta-catenin interacts with other proteins to control the activity (expression) of particular genes, which helps promote cell proliferation and differentiation. CTNNB1 gene mutations lead to an abnormally stable beta-catenin protein that is not broken down when it is no longer needed. The protein accumulates in cells, where it continues to function in an uncontrolled way.  The protein produced from the APC gene helps regulate levels of beta-catenin in the cell. When beta-catenin is no longer needed, the APC protein attaches (binds) to it, which signals for it to be broken down. Mutations in the APC gene that cause desmoid tumors lead to a short APC protein that is unable to interact with beta-catenin. As a result, beta-catenin is not broken down and, instead, accumulates in cells. Excess beta-catenin, whether caused by CTNNB1 or APC gene mutations, promotes uncontrolled growth and division of cells, allowing the formation of desmoid tumors.
Question: What are the genetic changes related to Darier disease ?

Answer: Mutations in the ATP2A2 gene cause Darier disease. The ATP2A2 gene provides instructions for producing an enzyme abbreviated as SERCA2. This enzyme acts as a pump that helps control the level of positively charged calcium atoms (calcium ions) inside cells, particularly in the endoplasmic reticulum and the sarcoplasmic reticulum. The endoplasmic reticulum is a structure inside the cell that is involved in protein processing and transport. The sarcoplasmic reticulum is a structure in muscle cells that assists with muscle contraction and relaxation by releasing and storing calcium ions. Calcium ions act as signals for a large number of activities that are important for the normal development and function of cells. SERCA2 allows calcium ions to pass into and out of the cell in response to cell signals.  Mutations in the ATP2A2 gene result in insufficient amounts of functional SERCA2 enzyme. A lack of SERCA2 enzyme reduces calcium levels in the endoplasmic reticulum, causing it to become dysfunctional. SERCA2 is expressed throughout the body; it is not clear why changes in this enzyme affect only the skin. Some researchers note that skin cells are the only cell types expressing SERCA2 that do not have a "back-up" enzyme for calcium transport. This dependence on the SERCA2 enzyme may make skin cells particularly vulnerable to changes in this enzyme.  The linear form of Darier disease is caused by ATP2A2 gene mutations that are acquired during a person's lifetime and are present only in certain cells. These changes are called somatic mutations and are not inherited. There have been no known cases of people with the linear form of Darier disease passing it on to their children.