内生致冷原对家兔内毒素性发热的影响

本文通过给家兔静脉注射分离纯化的EC,,观察了EC对正常体温、ET性发热时体温及血清Fe~(2+)、Zn~(2+)、Cu~(2+)含量的影响。结果显示,EC能降低正常体温及ET性发热时升高的体温;同时,EC能抑制ET性发热的第二热峰的形成;但EC不能拮抗ET引起的血清Fe~(2+)、Zn~(2+)、Cu~(2+)含量的改变。上述结果提示,EC可能参与了正常及发热时的体温调节过程,但可能不参与ET所致的其它急性期反应调节。

The effect of EC on the ET-induced fever in rabbits

The effects of intravenous injection of purifed EC on the rectal tempera-ture in normal rabbits and febrile rabbits induced by ET and concentrations of Fe~(2+), Zn~(2+),Cu~(2+) in serum were observed. The results showed that EC could lower the rectal tempera-ture in normal rabbits and also the increased rectal temperature in febrile rabbits. Mean-while, EC could inhibit the formation of the second phase of ET-fever. But EC had noeffect on the changed concentrations of FC~(2+), Zn~(2+), Cu~(2+) in serum caused by ET. Thesefindings suggest that EC may particiate in the regulation of body temperarure under physio-logical and febrile conditions, but not of acute phase response produced by ET.