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Combined effects of chronic alcohol consumption and physical activity on bone health: study in a rat model.
MedLine Citation:
PMID:  21437605     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Chronic alcohol consumption may be deleterious for bone tissue depending on the amount of ethanol consumed, whereas physical activity has positive effects on bone. This study was designed to analyze the effects of moderate alcohol consumption on bone in trained rats. 48 male Wistar rats were divided into four groups: control (C), alcohol (A), exercise (E) and alcohol + exercise (AE). A and AE groups drank a solution composed of water and ethanol. E and AE groups were trained for 2 months (treadmill: 40 min/day, 5 times/week). Body composition and bone mineral density (BMD) were assessed by dual X-ray absorptiometry and microarchitectural parameters using micro-computed tomography. Serum osteocalcin and CTx were determined by ELISA assays. The body weight and lean mass gain were lower in group A, while the fat mass gain was lower in exercised groups. BMD and BMC were higher with alcohol after body weight adjustment. Trabecular thickness was significantly higher in AE and A groups compared to C and E; cross-sectional area was larger in A and C groups compared to AE and E. CTx levels were higher in A compared to C and in AE and E versus C and A. Osteocalcin levels were significantly greater in AE and E groups versus C and A. In conclusion, the light to moderate alcohol consumption over a short period increased the trabecular thickness, BMC and BMD in A and AE groups. However, we observed alterations in bone remodeling and body composition with alcohol, at the end of the protocol, which did not appear when alcohol was combined to exercise.
Authors:
Delphine B Maurel; Nathalie Boisseau; Isabelle Ingrand; Eric Dolleans; Claude-Laurent Benhamou; Christelle Jaffre
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-3-25
Journal Detail:
Title:  European journal of applied physiology     Volume:  -     ISSN:  1439-6327     ISO Abbreviation:  -     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-3-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  100954790     Medline TA:  Eur J Appl Physiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
INSERM Unit 658, Caractérisation du Tissu Osseux par Imagerie: Techniques et Applications, Hôpital Porte Madeleine, 1 rue Porte Madeleine, BP 2439, 45032, Orléans Cedex 01, France.
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