Immobilization stress may increase plasma interleukin-6 via central and peripheral catecholamines.
Immobilization stress may increase plasma interleukin-6 via central and peripheral catecholamines.
复制标题
固定应激可能通过中枢和外周儿茶酚胺增加血浆白介素 6。
作者:
A. Takaki;Qin;A. Somogyvári;A. Arimura
It has recently been reported that both physical and psychological stress elevate plasma interleukin (IL)-6 levels independently of endotoxemia, tissue damage, or inflammation. However, the mechanism of plasma IL-6 elevation in these models is poorly understood. In the present study, plasma IL-6 levels were measured using the IL-6-dependent murine hybridoma subclone B9 cell line, which is commonly used by other investigators. We first demonstrated that an immobilization (IM) stress, a typical physicopsychological stress, increased plasma IL-6 levels. Then the contribution of the hypothalamic-pituitary-adrenal (HPA) axis and the central and peripheral catecholaminergic systems in IM-induced plasma IL-6 elevation were examined because these mechanisms play important roles in host defense against stress. Blood samples were collected through an indwelling jugular venous catheter before, during, and after IM; the number of samples taken serially from each animal was 12-13. Blood cells were resuspended in a saline solution and injected into the animals through the same catheter after each blood collection in order to prevent loss of blood volume. After initiation of restraint, plasma IL-6 levels significantly increased at 60 min and peaked at 90 min in the animals immobilized for either 30 or 120 min. The peak levels of IM-induced plasma IL-6 in the animals immobilized for 120 min (1,905 +/- 414 U/ml) were significantly higher than those in the animals subjected to 30 min IM (837 +/- 95 U/ml; p < 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)
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影响因子:
5.1
作者:
SULLIVAN, JS;KILPATRICK, L;HARRIS, MC
通讯作者:
HARRIS, MC
影响因子:
4.1
作者:
Matta,SG;Weatherbee,J;Sharp,BM
通讯作者:
Sharp,BM
影响因子:
4.8
作者:
Spangelo,BL;MacLeod,RM;Isakson,PC
通讯作者:
Isakson,PC
DOI:
10.1073/pnas.87.19.7512
发表时间:
1990-10-01
影响因子:
11.1
作者:
PAUL, SR;BENNETT, F;YANG, YC
通讯作者:
YANG, YC
影响因子:
4.8
作者:
Judd,AM;MacLeod,RM
通讯作者:
MacLeod,RM