T Mitsuma, Y Hirooka, K Nakada, A Nomura, T Nogimori
{"title":"内源性阿片肽对体外大鼠胃释放TRH的影响。","authors":"T Mitsuma, Y Hirooka, K Nakada, A Nomura, T Nogimori","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>The effect of endogenous opioid peptides (beta-endorphin, leucine-enkephalin, dynorphin 1-13 on the release of thyrotropin releasing hormone (TRH) from the rat stomach in vitro was studied. The rat stomach was incubated in the medium 199 with 1.0 mg/ml of bacitracin (pH 7.4) (medium) and the amount of TRH released into the medium was measured by radioimmunoassay. The release of TRH from the rat stomach was inhibited significantly in a dose-related manner with the addition of endogenous opioid peptides, but not affected with naloxone. However, the inhibitory effect of endogenous opioid peptides on TRH release from the rat stomach was prevented by the addition of naloxone. These findings suggest that endogenous opioid peptides inhibit TRH release from the rat stomach in vitro.</p>","PeriodicalId":11547,"journal":{"name":"Endocrinologia experimentalis","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1989-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of endogenous opioid peptides on TRH release from rat stomach in vitro.\",\"authors\":\"T Mitsuma, Y Hirooka, K Nakada, A Nomura, T Nogimori\",\"doi\":\"\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><p>The effect of endogenous opioid peptides (beta-endorphin, leucine-enkephalin, dynorphin 1-13 on the release of thyrotropin releasing hormone (TRH) from the rat stomach in vitro was studied. The rat stomach was incubated in the medium 199 with 1.0 mg/ml of bacitracin (pH 7.4) (medium) and the amount of TRH released into the medium was measured by radioimmunoassay. The release of TRH from the rat stomach was inhibited significantly in a dose-related manner with the addition of endogenous opioid peptides, but not affected with naloxone. However, the inhibitory effect of endogenous opioid peptides on TRH release from the rat stomach was prevented by the addition of naloxone. These findings suggest that endogenous opioid peptides inhibit TRH release from the rat stomach in vitro.</p>\",\"PeriodicalId\":11547,\"journal\":{\"name\":\"Endocrinologia experimentalis\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1989-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Endocrinologia experimentalis\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Endocrinologia experimentalis","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effect of endogenous opioid peptides on TRH release from rat stomach in vitro.
The effect of endogenous opioid peptides (beta-endorphin, leucine-enkephalin, dynorphin 1-13 on the release of thyrotropin releasing hormone (TRH) from the rat stomach in vitro was studied. The rat stomach was incubated in the medium 199 with 1.0 mg/ml of bacitracin (pH 7.4) (medium) and the amount of TRH released into the medium was measured by radioimmunoassay. The release of TRH from the rat stomach was inhibited significantly in a dose-related manner with the addition of endogenous opioid peptides, but not affected with naloxone. However, the inhibitory effect of endogenous opioid peptides on TRH release from the rat stomach was prevented by the addition of naloxone. These findings suggest that endogenous opioid peptides inhibit TRH release from the rat stomach in vitro.
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