Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «C»:
CD4: A large glycoprotein molecule found on the surface of T lymphocytes that serves as the receptor for HIV. The CD4 gene is on chromosome 12 in region 12pter-p12. CD4 is also called T4. See also: Absolute CD4 count....
CD4 count, absolute
CD4 count, absolute: See: Absolute CD4 count....
CD40: A receptor molecule on the cell surface of all mature B cells (B lymphocytes), most B-cell malignancies, and monocytes, dendritic cells (in the nervous system), endothelial cells (within blood vessels), and epithelial cells. CD40 is a member of the tumor necrosis factor superfamily. Together w...
CD8+ T cell
CD8+ T cell: See: Cytotoxic T-lymphocyte....
CD95: See: FAS gene....
CDC: The Centers for Disease Control and Prevention, the
US agency charged with tracking and investigating public health trends. The stated mission of the CDC is "To promote health and quality of life by preventing and controlling disease, injury, and disability." The CDC is a part of the U.S. Publi...
CDHR: Center for Devices & Radiological Health, part of the FDA (the US Food & Drug Administration)....
cDNA: Complementary DNA. cDNA is single-stranded DNA made in the laboratory from a messenger RNA template under the aegis of the enzyme reverse transcriptase. This form of DNA is often used as a probe in the physical mapping of a chromosome.
A cDNA library is a collection of DNA sequences generated ...
CEA: See carcinoembryonic antigen....
CEA assay: Carcinoembryonic antigen (CEA) is a protein
found in many types of cells but associated with tumors and the
CEA is tested in blood. The normal range is...
Cecal: Pertaining to the cecum (also spelled caecum), the first portion of the large bowel, situated in the lower right quadrant of the abdomen.
The cecum receives fecal material from the small bowel (ileum) which opens into it. The appendix is attached to the cecum.
The word "cecum" comes from the...
Cecal volvulus: See: Volvulus....
Cecum: The cecum (also spelled caecum), the first portion
of the large bowel, situated in the lower right quadrant of the
The cecum receives fecal material from the small bowel (ileum)
which opens into it. The appendix is attached to the cecum.
The word "cecum" comes from the Latin "cae...
Celebrity diets: Celebrity diets are weight loss plans that are reportedly endorsed by or used by celebrities. There are many different variations of celebrity diets, but most involve severe restriction of carbohydrates and/or calories. Other celebrity diets may involve gimmicks, such as the consump...
Celiac disease: A disorder resulting from an immune reaction to gluten, a protein found in wheat and related grains, and present in many foods. Celiac disease causes impaired absorption and digestion of nutrients through the small intestine.
Symptoms include frequent diarrhea and weight loss. A skin...