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A beverage containing fermented black soybean ameliorates ferric nitrilotriacetate-induced renal oxidative damage in rats.
MedLine Citation:
PMID:  21103028     Owner:  NLM     Status:  PubMed-not-MEDLINE    
It is beneficial to seek scientific basis for the effects of functional foods. Natural pigments derived from plants are widely known as possible antioxidants. Black soybean contains a larger amount of anthocyanins than regular soybean. Here we studied the antioxidative effect of a beverage obtained via citric acid fermentation of black soybean (BBS), using a rat model of renal oxidative injury induced by a renal carcinogen, ferric nitrilotriacetate. BBS (10 ml/kg) was orally administered 30 min before ferric nitrilotriacetate treatment. Renal lipid peroxidation was significantly suppressed in the BBS-pretreated animals concomitant with decrease in 4-hydroxy-2-nonenal-modified proteins and 8-hydroxy-2'-deoxyguanosine. Maintenance of renal activities of antioxidative enzymes including catalase, glutathione peroxidase, glutathione reductase, glutathione S-transferase, glucose-6-phosphate dehydrogenase and quinone reductase was significantly better in the BBS-pretreated rats. Elevation of serum creatinine and urea nitrogen was significantly suppressed in the BBS-pretreated rats. These data suggest that dietary intake of BBS is useful for the prevention of renal tubular oxidative damage mediate by iron, and warrant further investigation.
Yasumasa Okazaki; Mohammad Iqbal; Norito Kawakami; Yorihiro Yamamoto; Shinya Toyokuni; Shigeru Okada
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Publication Detail:
Type:  Journal Article     Date:  2010-09-16
Journal Detail:
Title:  Journal of clinical biochemistry and nutrition     Volume:  47     ISSN:  1880-5086     ISO Abbreviation:  J Clin Biochem Nutr     Publication Date:  2010 Nov 
Date Detail:
Created Date:  2010-11-24     Completed Date:  2011-07-14     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:  198-207     Citation Subset:  -    
Department of Pathological Research, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama 700-8558, Japan.
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