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.
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 with CD40 ligand, the molecule that binds to it, CD40 […]
CDC: The Centers for Disease Control and Prevention, the US agency charged with tracking and investigating public health trends. A part of the US Public Health Services (PHS) under the Department of Health and Human Services (HHS), the CDC is based in Atlanta, Georgia. It publishes key health information, including weekly data on all deaths […]
CDHR: Center for Devices & Radiological Health, part of the FDA (the US Food & Drug Administration).
Cecum: The first portion of the large bowel, which is 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.
- 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 , weight loss , iron deficiency anemia, osteoporosis . A skin condition dermatitis herpetiformis can be […]