CXCR4
CXCR4: A chemokine receptor found on a wide variety of cells that serves as the coreceptor for HIV. HIV strains that use CXCR4 are referred to as X4 viruses.
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- Cyanide
Cyanide: Poisoning with cyanide, a rapidly acting, potentially deadly chemical that can exist as a colorless gas, such as hydrogen cyanide (HCN) or cyanogen chloride (CNCl), or a crystal form such as sodium cyanide (NaCN) or potassium cyanide (KCN). Cyanide sometimes is described as having a “bitter almond” smell, but it does not always give […]
- Cyanosis
Cyanosis: A bluish color of the skin and the mucous membranes due to insufficient oxygen in the blood. For example, the lips can develop cynanosis when exposed to extreme cold. Cyanosis can be present at birth, as in a ‘blue baby,’ an infant with a malformation of the heart that permits into the arterial system […]
- Cyanotic
Cyanotic: Showing cyanosis (bluish discoloration of the skin and mucous membranes due to not enough oxygen in the blood). See: Cyanosis.
- Cycle, cell
Cycle, cell: The sequence of events within the cell between mitotic (cell) divisions. The cell cycle is conventionally divided into five phases: G0 (the gap); G1, (the first gap); S (the synthesis phase, during which the DNA is synthesized and replicated); G2 (the second gap); and M (mitosis). Cells that are not destined to divide […]
- Cyclic citrullinated peptide
Cyclic citrullinated peptide: A circular peptide containing the amino acid citrulline. Abbreviated CCP. Autoantibodies directed against CCP are found in people with rheumatoid arthritis.