Summary

MedlinePlus is an online health information resource. It is a service of the National Library of Medicine (NLM), the world's largest medical library, which is part of the National Institutes of Health (NIH). To promote the transmission of knowledge, this entry collection contains information about the effects of genetic variation on human health transferred from MedlinePlus.

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Gorlin Syndrome
Gorlin syndrome, also known as nevoid basal cell carcinoma syndrome, is a condition that affects many areas of the body and increases the risk of developing various cancerous and noncancerous tumors.
  • 571
  • 31 Dec 2020
Topic Review
Fucosidosis
Fucosidosis is a neurodegenerative disorder which progresses inexorably. Clinical features include coarse facial features, growth retardation, recurrent upper respiratory infections, dysostosis multiplex, and angiokeratoma corporis diffusum.
  • 555
  • 03 Jun 2021
Topic Review
Depression
Depression (also known as major depression or major depressive disorder) is a psychiatric disorder that affects mood, behavior, and overall health. It causes prolonged feelings of sadness, emptiness, or hopelessness, and a loss of interest in activities that were once enjoyed. People with depression may also have changes in appetite (leading to overeating or not eating enough), changes in sleeping patterns (sleeping too much or not being able to sleep), loss of energy, and difficulty concentrating. Although depression is considered primarily a mental health disorder, it can also have physical features including headaches, other unexplained aches and pains, unusually slow or fast movements, and digestive problems. To be diagnosed with depression, an individual must have signs and symptoms nearly every day for at least 2 weeks. However, the features of this condition vary widely.
  • 2.1K
  • 31 Dec 2020
Topic Review
Clopidogrel Resistance
Clopidogrel resistance is a condition in which the drug clopidogrel is less effective than normal in people who are treated with it. Clopidogrel (also known as Plavix) is an antiplatelet drug, which means that it prevents blood cells called platelets from sticking together (aggregating) and forming blood clots. This drug is typically given to prevent blood clot formation in individuals with a history of stroke; heart attack; a blood clot in the deep veins of the arms or legs (deep vein thrombosis); or plaque buildup (atherosclerosis) in the blood vessels leading from the heart, which are opened by placement of a small thin tube (stent).
  • 558
  • 31 Dec 2020
Topic Review
Brugada Syndrome
Brugada syndrome is a condition that causes a disruption of the heart's normal rhythm. Specifically, this disorder can lead to irregular heartbeats in the heart's lower chambers (ventricles), which is an abnormality called ventricular arrhythmia. If untreated, the irregular heartbeats can cause fainting (syncope), seizures, difficulty breathing, or sudden death. These complications typically occur when an affected person is resting or asleep.
  • 591
  • 31 Dec 2020
Topic Review
Breast Cancer
Breast cancer is a disease in which certain cells in the breast become abnormal and multiply uncontrollably to form a tumor.
  • 927
  • 31 Dec 2020
Topic Review
Attention-Deficit/Hyperactivity Disorder
Attention-deficit/hyperactivity disorder (ADHD) is a behavioral disorder that typically begins in childhood and is characterized by a short attention span (inattention), an inability to be calm and stay still (hyperactivity), and poor impulse control (impulsivity). Some people with ADHD have problems with only inattention or with hyperactivity and impulsivity, but most have problems related to all three features.
  • 576
  • 31 Dec 2020
Topic Review
Atopic Dermatitis
Atopic dermatitis (also known as atopic eczema) is a disorder characterized by inflammation of the skin (dermatitis). The condition usually begins in early infancy, and it often disappears before adolescence. However, in some affected individuals the condition continues into adulthood; in others, it does not begin until adulthood. Hallmarks of atopic dermatitis include dry, itchy skin and red rashes that come and go. The rashes can occur on any part of the body, although the pattern tends to be different at different ages. In affected infants, the rashes commonly occur on the face, scalp, hands, and feet. In children, the rashes are usually found in the bend of the elbows and knees and on the front of the neck. In adolescents and adults, the rashes typically occur on the wrists, ankles, and eyelids in addition to the bend of the elbows and knees. Scratching the itchy skin can lead to oozing and crusting of the rashes and thickening and hardening (lichenification) of the skin. The itchiness can be so severe as to disturb sleep and impair a person's quality of life.
  • 684
  • 31 Dec 2020
Topic Review
Amyotrophic Lateral Sclerosis
Amyotrophic lateral sclerosis (ALS) is a progressive disease that affects motor neurons, which are specialized nerve cells that control muscle movement. These nerve cells are found in the spinal cord and the brain. In ALS, motor neurons die (atrophy) over time, leading to muscle weakness, a loss of muscle mass, and an inability to control movement.
  • 751
  • 31 Dec 2020
Topic Review
Alagille Syndrome
Alagille syndrome is a genetic disorder that can affect the liver, heart, and other parts of the body.
  • 648
  • 31 Dec 2020
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