| endogenous | <biology> Developing or originating within the organisms or arising from causes within the organism. Origin: Gr. Gennan = to produce (18 Nov 1997) |
|---|---|
| endogenous creatinine clearance | A term distinguishing measurements based on the creatinine normally present in plasma; since no infusion is necessary, an average value may be obtained by collecting urine for a long period, e.g., 24 hours. (05 Mar 2000) |
| endogenous cycle | The portion of a parasitic life cycle occurring within the host. (05 Mar 2000) |
| endogenous depression | <psychiatry> A clinical syndrome that includes a persistent sad mood or loss of interest in activities that persists for at least 2 weeks in the absence of external precipitants. This should not be confused with a grief reaction (death of loved one). Features may include change in eating habits, insomnia, early morning wakening, lack of interest, depressed mood, fatigue and suicidal thoughts. (27 Sep 1997) |
| endogenous fibres | Nerve fibre's interconnecting subdivisions of the cerebral cortex of the same hemisphere or different segments of the spinal cord on the same side. Synonym: endogenous fibres, intrinsic fibres. (05 Mar 2000) |
| endogenous infection | Infection caused by an infectious agent already present in the body, the previous infection having been inapparent. (05 Mar 2000) |
| endogenous pyrogen | Fever producing substance released by leucocytes (and Kuppfer cells in particular) that acts on the hypothalamic thermoregulatory centre. Now known to be interleukin-1. (18 Nov 1997) |
| endogenous retrovirus | <virology> A retrovirus that has become dormant and exists as DNA copies in every cell in the body of its host and is passed down from generation to generation. (09 Oct 1997) |
| endogenous virus | <virology> A virus with the ability to integrate into the genome of its host and become dormant, so that it exists as DNA copies in every cell in the body of the host and is passed down from generation to generation. A virus that causes a persistent infection. (09 Oct 1997) |