当前位置： SCI文献检索 > LIFE SCIENCES期刊下所有文献 > Roles of capsaicin-sensitive sensory nerves, endogenous nitric oxide, sulfhydryls, and prostaglandins in gastroprotection by momordin Ic, an oleanolic acid oligoglycoside, on ethanol-induced gastric mucosal lesions in rats.

Roles of capsaicin-sensitive sensory nerves, endogenous nitric oxide, sulfhydryls, and prostaglandins in gastroprotection by momordin Ic, an oleanolic acid oligoglycoside, on ethanol-induced gastric mucosal lesions in rats.

Abstract：

:The roles of capsaicin-sensitive sensory nerves (CPSN), endogenous nitric oxide (NO), sulfhydryls (SHs), prostaglandins (PGs) in the gastroprotection by momordin Ic, an oleanolic acid oligoglycoside isolated from the fruit of Kochia scoparia (L.) SCHRAD., on ethanol-induced gastric mucosal lesions were investigated in rats. Momordin Ic (10 mg/kg, p.o.) potentially inhibited ethanol-induced gastric mucosal lesions. The effect of momordin Ic was markedly attenuated by the pretreatment with capsaicin (125 mg/kg in total, s.c., an ablater of CPSN), N(G)-nitro-L-arginine methyl ester (L-NAME, 70 mg/kg, i.p., an inhibitor of NO synthase), N-ethylmaleimide (NEM, 10 mg/kg, s.c., a blocker of SHs), or indomethacin (10 mg/kg, s.c., an inhibitor of PGs biosynthesis). The attenuation of L-NAME was abolished by L-arginine (300 mg/kg, i.v., a substrate of NO synthase), but not by D-arginine (300 mg/kg, i.v., the enatiomer of L-arginine). The effect of the combination of capsaicin with indomethacin, NEM, or L-NAME was not more potent than that of capsaicin alone. The combination of indomethacin and NEM, indomethacin and L-NAME, or indomethacin and NEM and L-NAME increased the attenuation of each alone. These results suggest that CPSN play an important role in the gastroprotection by momordin Ic on ethanol-induced gastric mucosal lesions, and endogenous PGs, NO, and SHs interactively participate, in rats.

journal_name

Life Sci

journal_title

Life sciences

authors

Matsuda H,Li Y,Yoshikawa M

doi

10.1016/s0024-3205(99)00241-6

subject

Has Abstract

pub_date

1999-01-01 00:00:00

pages

PL27-32

issue

2

eissn

0024-3205

issn

1879-0631

pii

S0024320599002416

journal_volume

65

pub_type

杂志文章

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