T. Takao et al., RECIPROCAL MODULATION OF CORTICOTROPIN-RELEASING FACTOR AND INTERLEUKIN-1 RECEPTORS FOLLOWING ETHER-LAPAROTOMY STRESS IN THE MOUSE, Brain research, 660(1), 1994, pp. 170-174
Ether-laparotomy stress resulted in a dramatic decrease in specific io
dine-125-labeled ovine CRF binding ([I-125]oCRF) in the pituitary at 6
h after the onset of the stress although it did not affect [I-125]oCR
F binding in the pituitary at 2 h after the stress. [I-125]oCRF bindin
g was unchanged in the frontal cortex after the stress. In contrast, [
I-125]interleukin-1 (IL-1)alpha binding was significantly increased in
the pituitary at 2 h after the stress and tended to be higher than no
n-stressed levels at 6 h after the stress but was not statistically si
gnificant. Ether-laparotomy stress did not affect [I-125]IL-1 alpha bi
nding in hippocampus, spleen and testis at any time after the stress.
Plasma adrenocorticotropic hormone (ACTH) and corticosterone were incr
eased at 2 h after the stress. These data demonstrate complex interact
ions between CRF and IL-1 receptors on HPA axis during stress.