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Mechanism by Sambucus nigra Extract Improves Bone Mineral Density in Experimental Diabetes.
MedLine Citation:
PMID:  23024697     Owner:  NLM     Status:  PubMed-not-MEDLINE    
The effects of polyphenols extracted from Sambucus nigra fruit were studied in streptozotocin- (STZ-) induced hyperglycemic rats to evaluate its possible antioxidant, anti-inflammatory, antiglycosylation activity, and antiosteoporosis effects in diabetes. DEXA bone mineral density tests were performed in order to determine bone mineral density (BMD), bone mineral content (BMC), and fat (%Fat) in control and diabetic animals, before and after polyphenol delivery. As compared to the normoglycemic group, the rats treated with STZ (60 mg/kg body weight) revealed a significant malondialdehyde (MDA) increase, as an index of the lipid peroxidation level, by 69%, while the total antioxidant activity (TAS) dropped by 36%, with a consistently significant decrease (P < 0.05) in the activity of superoxide dismutase (SOD) and glutathione peroxidase (GPX). Also, the treatment of rats with STZ revealed a significant increase of IL-6, glycosylated haemoglobin (HbA(1c)), and osteopenia detected by DEXA bone mineral density tests. The recorded results highlight a significant improvement (P < 0.001) in the antioxidative capacity of the serum in diabetic rats treated with natural polyphenols, bringing back to normal the concentration of reduced glutathione (GSH), as well as an important decrease in the serum concentration of MDA, with improved osteoporosis status. Knowing the effects of polyphenols could lead to the use of the polyphenolic extract of Sambucus nigra as a dietary supplement in diabetic osteoporosis.
Laurentiu Badescu; Oana Badulescu; Magda Badescu; Manuela Ciocoiu
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Publication Detail:
Type:  Journal Article     Date:  2012-09-13
Journal Detail:
Title:  Evidence-based complementary and alternative medicine : eCAM     Volume:  2012     ISSN:  1741-4288     ISO Abbreviation:  Evid Based Complement Alternat Med     Publication Date:  2012  
Date Detail:
Created Date:  2012-10-01     Completed Date:  2012-10-02     Revised Date:  2013-04-08    
Medline Journal Info:
Nlm Unique ID:  101215021     Medline TA:  Evid Based Complement Alternat Med     Country:  United States    
Other Details:
Languages:  eng     Pagination:  848269     Citation Subset:  -    
Department of Cellular and Molecular Biology, University of Medicine and Pharmacy "Grigore T. Popa" Iasi, 16 Universitatii Street, 700115 Iasi, Romania.
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