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논문 기본 정보

자료유형
학술저널
저자정보
Ahn, Seong-Hoon (College of Pharmacy, Sungkyunkwan University) Seo, Dong-Wan (College of Pharmacy, Sungkyunkwan University) Ko, Young-Kwon (College of Pharmacy, Sungkyunkwan University) Sung, Kae-Suk (College of Pharmacy, Sungkyunkwan University) Bae, Gyu-Un (College of Pharmacy, Sungkyunkwan University) Yoon, Jong-Woo (College of Pharmacy, Sungkyunkwan University) Hong, Sung-Youl (College of Life Science and Natural Resources, Sungkyunkwan University) Han, Jeung-Whan (College of Pharmacy, Sungkyunkwan University) Lee, Hyang-Woo (College of Pharmacy, Sungkyunkwan University)
저널정보
대한약학회 Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea Archives of pharmacal research : a publication of the Pharmaceutical Society of Korea 제21권 제6호
발행연도
1998.1
수록면
657 - 663 (7page)

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The enzyme responsible for the synthesis of nitric oxide (NO) from L-arginine in mammalian tissues is known as nitric oxide synthase (NOS) (EC.1.14.13.39). In the present study, the role of NO in the regulation of exocrine secretion was investigated in rat pancreatic acinar cells. Treatment of rat pancreatic acinar cells with cholecystokinin-octapeptide (CCK-OP) resulted in an increase in the arginine conversion to citrulline, the amount of $NO_X$, the release of amylase, and the level of CGMP. Especially, CCK-OP-stimulated increase of arginine to citrulline transformation, the amount of $NO_X$, and CGMP level were completely counteracted by the inhibitor of NOS, NG-monomethyl-L-arginine (MMA), by contrast, that of amylase release was partially reduced. Furthermore, MMA-induced decrease of NOS activity and amylase release showed dose-dependent pattern. The data on the time course of CCK-OP-induced citrulline formation and CGMP rise indicate that NOS and guanylate cyclase were activated by treatment of CCK-OP. However, the mechanism of agonist-stimulated guanylate cyclase activation in acinar cells remains unknown. Therefore, activation of NOS is one of the early events in receptor-mediated cascade of reactions in pancreatic acinar cells and NO, not completely, but partially mediate pancreatic enzyme exocrine secretion.

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