Role of histaminergic mechanisms in the regulation of some stress responses in rats.
PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR(1991)
摘要
The involvement of histaminergic mechanisms in the regulation of some stress responses was studied in rats. The brain neuronal histamine (HA) depletor, alpha-fluoromethyl histidine (alpha-FMH), at doses (50 or 100 mg/kg) which markedly lower brain HA, significantly attenuated the gastric ulcer formation and the elevation in plasma corticosterone in response to cold restraint stress (CRS). alpha-FMH also appreciably reduced gastric mucosal HA content. The H-1-antagonist, pheniramine (25 mg/kg), attenuated both the gastric mucosal and endocrine response to CRS, while the effects of the H-2-antagonist, cimetidine (200 mg/kg), were on the plasma corticosterone levels. These results are discussed in light of complex HA-ergic mechanisms in the maintenance of physiological homeostasis during stress.
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关键词
BRAIN HISTAMINE,RESTRAINT STRESS,GASTRIC ULCER,PLASMA CORTICOSTERONE,H1 AND H2 RECEPTOR
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