Abstract
1. When castor oil was administered by gavage to rats, the duodenum and jejunum but not ileum and colon produced large amounts (5-6 fold greater than control) of platelet activating factor (Paf). 2. Intraluminal release of acid phosphatase (AP) was also markedly increased (5-6 fold greater than control) in the duodenum and jejunum of castor oil-treated rats and there was a correlation between the elevated release of AP and intestinal hyperaemia. 3. These findings support a role for Paf as a mediator of intestinal damage induced by castor oil.
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Selected References
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- Ammendola G., Di Rosa M., Sorrentino L. Leucocyte migration and lysosomal enzymes release in rat carrageenin pleurisy. Agents Actions. 1975 Aug;5(3):250–255. doi: 10.1007/BF02026439. [DOI] [PubMed] [Google Scholar]
- Ammon H. V., Phillips S. F. Inhibition of ileal water absorption by intraluminal fatty acids. Influence of chain length, hydroxylation, and conjugation of fatty acids. J Clin Invest. 1974 Jan;53(1):205–210. doi: 10.1172/JCI107539. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Calignano A., Cirino G., Meli R., Persico P. Isolation and identification of platelet-activating factor in UV-irradiated guinea pig skin. J Pharmacol Methods. 1988 Mar;19(1):89–91. doi: 10.1016/0160-5402(88)90049-6. [DOI] [PubMed] [Google Scholar]
- Capasso F., Mascolo N., Autore G., Romano V. Laxatives and the production of autacoids by rat colon. J Pharm Pharmacol. 1986 Aug;38(8):627–629. doi: 10.1111/j.2042-7158.1986.tb03097.x. [DOI] [PubMed] [Google Scholar]
- Capasso F., Tavares I. A., Tsang R., Rennie J. A., Bennett A. Eicosanoid formation by mammalian intestine. Effects of some intestinal secretagogues. Eur J Pharmacol. 1987 Jun 12;138(1):107–113. doi: 10.1016/0014-2999(87)90344-x. [DOI] [PubMed] [Google Scholar]
- Doebber T. W., Wu M. S., Robbins J. C., Choy B. M., Chang M. N., Shen T. Y. Platelet activating factor (PAF) involvement in endotoxin-induced hypotension in rats. Studies with PAF-receptor antagonist kadsurenone. Biochem Biophys Res Commun. 1985 Mar 29;127(3):799–808. doi: 10.1016/s0006-291x(85)80014-0. [DOI] [PubMed] [Google Scholar]
- Gaginella T. S., Bass P. Laxatives: an update on mechanism of action. Life Sci. 1978 Sep 11;23(10):1001–1009. doi: 10.1016/0024-3205(78)90659-8. [DOI] [PubMed] [Google Scholar]
- Niemegeers C. J., Lenaerts F. M., Janssen P. A. Difenoxine (R 15403), the active metabolite of diphenoxylate (R 1132). 2. Difneozine, a potent, orally active and safe antidiarrheal agent in rats. Arzneimittelforschung. 1972 Mar;22(3):516–518. [PubMed] [Google Scholar]
- O'Flaherty J. T., Wykle R. L. Metabolic origin and fate of platelet-activating factor. Agents Actions Suppl. 1987;21:59–66. doi: 10.1007/978-3-0348-7451-9_4. [DOI] [PubMed] [Google Scholar]
- REYNELL P. C., SPRAY G. H. Chemical gastroenteritis in the rat. Gastroenterology. 1958 May;34(5):867–873. [PubMed] [Google Scholar]
- Tsurumi K., Fujimura H. Effect of anti-inflammatory drugs on endotoxin-induced diarrhea in mice. Jpn J Pharmacol. 1983 Feb;33(1):165–173. doi: 10.1254/jjp.33.165. [DOI] [PubMed] [Google Scholar]
- Vischer P., Casals-Stenzel J. Influence of prostacyclin and indomethacin on castor oil-induced gastrointestinal effects in rats. J Pharm Pharmacol. 1983 Mar;35(3):152–156. doi: 10.1111/j.2042-7158.1983.tb04295.x. [DOI] [PubMed] [Google Scholar]
- Wallace J. L., Whittle B. J. Prevention of endotoxin-induced gastrointestinal damage by CV-3988, an antagonist of platelet-activating factor. Eur J Pharmacol. 1986 May 13;124(1-2):209–210. doi: 10.1016/0014-2999(86)90148-2. [DOI] [PubMed] [Google Scholar]
- Wallace J. L., Whittle B. J. Profile of gastrointestinal damage induced by platelet-activating factor. Prostaglandins. 1986 Jul;32(1):137–141. doi: 10.1016/0090-6980(86)90156-5. [DOI] [PubMed] [Google Scholar]
- Whittle B. J., Boughton-Smith N. K., Hutcheson I. R., Esplugues J. V., Wallace J. L. Increased intestinal formation of Paf in endotoxin-induced damage in the rat. Br J Pharmacol. 1987 Sep;92(1):3–4. doi: 10.1111/j.1476-5381.1987.tb11287.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
