Document Detail

Lansoprazole inhibits mitochondrial superoxide production and cellular lipid peroxidation induced by indomethacin in RGM1 cells.
MedLine Citation:
PMID:  21765603     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Lansoprazole is effective in healing non-steroidal anti-inflammatory drugs induced ulcers, and antioxidant properties have been thought to play a key role in healing ulcers. We hypothesize that lansoprazole exerts a cytoprotective effect by inhibiting reactive oxygen species leakage from mitochondria and lipid peroxidation. We pretreated gastric epithelial RGM1 cells with lansoprazole and then treated them with indomethacin in vitro. We found that the lansoprazole pretreatment significantly reduced cellular injury, maintained mitochondrial transmembrane potential, and decreased lipid peroxidation. Furthermore, the signal intensity of the electron spin resonance spectrum of the indomethacin-treated mitochondria which were pretreated with lansoprazole showed considerable reduction compared to those without the lansoprazole pretreatment. These results suggest that lansoprazole reduced superoxide production in the mitochondria of indomethacin treated cells, and subsequently inhibited lipid peroxide and cellular injury in gastric epithelial cells.
Kanho Rai; Hirofumi Matsui; Tsuyoshi Kaneko; Yumiko Nagano; Osamu Shimokawa; Jumpei Udo; Aki Hirayama; Ichinosuke Hyodo; Hiroko P Indo; Hideyuki J Majima
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Publication Detail:
Type:  Journal Article     Date:  2011-06-17
Journal Detail:
Title:  Journal of clinical biochemistry and nutrition     Volume:  49     ISSN:  1880-5086     ISO Abbreviation:  J Clin Biochem Nutr     Publication Date:  2011 Jul 
Date Detail:
Created Date:  2011-07-18     Completed Date:  2011-11-10     Revised Date:  2013-05-29    
Medline Journal Info:
Nlm Unique ID:  8700907     Medline TA:  J Clin Biochem Nutr     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  25-30     Citation Subset:  -    
Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575, Japan.
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