Fever occurs due to -: (A) IL 1, (B) Endoephin, (C) Enkephalin, (D) Histamine
Answer is A. Ans. is 'a' i.e., IL1 Pyrogeneso Pyrogenes are substances that cause fever.o Pyrogens may be exogenous or endogenous* Exogenous- Bacterial toxins* Endogenous- IL0-l,TNF-a, IL-6, Interferons, Cilioiy's neurotropic factoro These pyrogenes increase the level of PGE2 in the hypothalamus that elevates the thermoregulatory set point and causes fever.