{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,8]],"date-time":"2026-02-08T00:33:12Z","timestamp":1770510792211,"version":"3.49.0"},"reference-count":55,"publisher":"American Physiological Society","issue":"2","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["American Journal of Physiology-Gastrointestinal and Liver Physiology"],"published-print":{"date-parts":[[2003,8]]},"abstract":"<jats:p> Stress reduces gastric blood flow and produces acute gastric mucosal lesions. We studied the role of angiotensin II in gastric blood flow and gastric ulceration during stress. Spontaneously hypertensive rats were pretreated for 14 days with the AT<jats:sub>1<\/jats:sub> receptor antagonist candesartan before cold-restraint stress. AT<jats:sub>1<\/jats:sub> receptors were localized in the endothelium of arteries in the gastric mucosa and in all gastric layers. AT<jats:sub>1<\/jats:sub> blockade increased gastric blood flow by 40\u201350%, prevented gastric ulcer formation by 70\u201380% after cold-restraint stress, reduced the increase in adrenomedullary epinephrine and tyrosine hydroxylase mRNA without preventing the stress-induced increase in adrenal corticosterone, decreased the stress-induced expression of TNF-\u03b1 and that of the adhesion protein ICAM-1 in arterial endothelium, decreased the neutrophil infiltration in the gastric mucosa, and decreased the gastric content of PGE<jats:sub>2<\/jats:sub>. AT<jats:sub>1<\/jats:sub> receptor blockers prevent stress-induced ulcerations by a combination of gastric blood flow protection, decreased sympathoadrenal activation, and anti-inflammatory effects (with reduction in TNF-\u03b1 and ICAM-1 expression leading to reduced neutrophil infiltration) while maintaining the protective glucocorticoid effects and PGE<jats:sub>2<\/jats:sub> release. Angiotensin II has a crucial role, through stimulation of AT<jats:sub>1<\/jats:sub> receptors, in the production and progression of stress-induced gastric injury, and AT<jats:sub>1<\/jats:sub> receptor antagonists could be of therapeutic benefit. <\/jats:p>","DOI":"10.1152\/ajpgi.00058.2003","type":"journal-article","created":{"date-parts":[[2015,3,3]],"date-time":"2015-03-03T19:59:02Z","timestamp":1425412742000},"page":"G414-G423","source":"Crossref","is-referenced-by-count":100,"title":["Anti-inflammatory effects of angiotensin II AT<sub>1<\/sub> receptor  antagonism prevent stress-induced gastric injury"],"prefix":"10.1152","volume":"285","author":[{"given":"Claudia","family":"Bregonzio","sequence":"first","affiliation":[{"name":"Section on Pharmacology, National Institute of Mental Health, National  Institute of Health, Department of Health and Human Services, Bethesda,  Maryland 20892"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ines","family":"Armando","sequence":"additional","affiliation":[{"name":"Section on Pharmacology, National Institute of Mental Health, National  Institute of Health, Department of Health and Human Services, Bethesda,  Maryland 20892"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiromichi","family":"Ando","sequence":"additional","affiliation":[{"name":"Section on Pharmacology, National Institute of Mental Health, National  Institute of Health, Department of Health and Human Services, Bethesda,  Maryland 20892"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Miroslava","family":"Jezova","sequence":"additional","affiliation":[{"name":"Section on Pharmacology, National Institute of Mental Health, National  Institute of Health, Department of Health and Human Services, Bethesda,  Maryland 20892"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Gustavo","family":"Baiardi","sequence":"additional","affiliation":[{"name":"Section on Pharmacology, National Institute of Mental Health, National  Institute of Health, Department of Health and Human Services, Bethesda,  Maryland 20892"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Juan M.","family":"Saavedra","sequence":"additional","affiliation":[{"name":"Section on Pharmacology, National Institute of Mental Health, National  Institute of Health, Department of Health and Human Services, Bethesda,  Maryland 20892"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"24","reference":[{"key":"REF1","doi-asserted-by":"publisher","DOI":"10.1161\/01.RES.0000046018.23605.3E"},{"key":"REF2","doi-asserted-by":"publisher","DOI":"10.1016\/S0091-3057(01)00512-3"},{"key":"REF3","unstructured":"Arakawa T,  Higuchi K, Fukida T, Fujiwara Y, Kobayashi K, and Kuroki T. 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