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The effect of mosapride (5HT-4 receptor agonist) on insulin sensitivity and GLUT4 translocation

Authors
 J.S. Nam  ;  J.Y. Nam  ;  J.S. Yoo  ;  M. Cho  ;  J.S. Park  ;  C.W. Ahn  ;  B.S. Cha  ;  E.J. Lee  ;  S.K. Lim  ;  K.R. Kim  ;  H.C. Lee 
Citation
 Diabetes Research and Clinical Practice, Vol.87(3) : 329-334, 2010 
Journal Title
 Diabetes Research and Clinical Practice 
ISSN
 0168-8227 
Issue Date
2010
Abstract
AIMS: We investigated the effect of mosapride, 5HT-4 (5-hydroxytryptamine) agonist, on blood glucose level and insulin sensitivity in subjects with impaired glucose tolerance (IGT) and conducted an in vitro study to evaluate the action mechanism. METHODS: Thirty IGT patients were randomly assigned to receive either mosapride or placebo for 2 weeks. Biochemical profiles and insulin sensitivity index from euglycemic hyperinsulinemic clamp test were assessed before and after treatment. In cultured myotubes from human skeletal muscle cells, insulin- and mosapride-induced GLUT4 translocation and tyrosine phosphorylation of IRS-1 were determined. RESULTS: After 2 weeks of treatment with mosapride, glucose disposal rates were significantly increased up to those of control (mosapride 5.47+/-1.72 vs 7.06+/-2.13, P=0.004, placebo 5.42+/-1.85 vs 5.23+/-1.53mgkg(-1)min(-1)). Fasting plasma glucose (FPG) and insulin levels were decreased. Mosapride increased the contents of GLUT4 in plasma membrane representing the increased recruitment of glucose transporters from intracellular pool. While insulin treatment on human skeletal muscle cell resulted in an increased tyrosine phosphorylation of IRS-1, mosapride did not have any effect. CONCLUSIONS: Mosapride is effective in decreasing FPG without stimulating insulin secretion in IGT subjects, possibly by inducing GLUT4 translocation in skeletal muscles.
Full Text
http://www.sciencedirect.com/science/article/pii/S0168822709005464
DOI
10.1016/j.diabres.2009.12.021
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Kyung Rae(김경래)
Nam, Ji Sun(남지선) ORCID logo https://orcid.org/0000-0001-8655-5258
Park, Jong Suk(박종숙) ORCID logo https://orcid.org/0000-0002-5385-1373
Ahn, Chul Woo(안철우) ORCID logo https://orcid.org/0000-0003-3733-7486
Yoo, Jeong Seon(유정선)
Lee, Eun Jig(이은직) ORCID logo https://orcid.org/0000-0002-9876-8370
Lee, Hyun Chul(이현철)
Lim, Sung Kil(임승길)
Cho, Min Ho(조민호)
Cha, Bong Soo(차봉수) ORCID logo https://orcid.org/0000-0003-0542-2854
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URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/102075
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