Murison R, Overmier JB, Hellhammer DH, Carmona M. Hypothalamo-pituitary-adrenal manipulations and stress ulcerations in rats.
Psychoneuroendocrinology 1989;
14:331-8. [PMID:
2813656 DOI:
10.1016/0306-4530(89)90002-4]
[Citation(s) in RCA: 19] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Both gastric ulceration and activation of the hypothalamo-pituitary adrenal axis are considered integral to the stress response, and a causal relationship between the two has been suggested. In the present study, corticosterone secretion in rats was either stimulated with CRF or lowered with metyrapone during a known ulcerogenic stress. Reduction of circulating corticosterone during the stress had no effect on ulceration severity compared to saline-treated stressed control rats. Treatment with CRF in stressed animals reduced ulceration severity. The mechanism of this protective effect remains unclear. The findings do not support a simple causal relationship between adrenocortical activity and gastric ulceration.
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