Document Detail


Caloric restriction, aerobic exercise training and soluble lectin-like oxidized LDL receptor-1 levels in overweight and obese post-menopausal women.
MedLine Citation:
PMID:  20856256     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: Elevated circulating levels of soluble lectin-like oxidized low-density lipoprotein receptor-1 (sLOX-1) have been observed in obese persons and are reduced by weight loss. However, it is not known whether combining caloric restriction (CR) with exercise training is better in reducing sLOX-1 levels than CR alone. OBJECTIVE: We examined whether the addition of aerobic exercise to a weight loss intervention differentially affects sLOX-1 levels in 61 abdominally obese post-menopausal women randomly assigned to a CR only (n = 22), CR+moderate-intensity exercise (n = 22) or CR+vigorous-intensity exercise (n = 17) intervention for 20 weeks. The caloric deficit was ~2800 kcal per week for all groups.Results:The intervention groups were similar at baseline with respect to body weight, body composition, lipids and blood pressure. However, plasma sLOX-1 levels were higher in the CR-only group (99.90 ± 8.23 pg ml(-1)) compared with both the CR+moderate-intensity exercise (69.39 ± 8.23 pg ml(-1), P = 0.01) and the CR+vigorous-intensity exercise (72.83 ± 9.36 pg ml(-1), P = 0.03) groups. All three interventions significantly reduced body weight (~14%), body fat and waist and hip circumferences to a similar degree. These changes were accompanied by a 23% reduction in sLOX-1 levels overall (-19.00 ± 30.08 pg ml(-1), P < 0.0001), which did not differ among intervention groups (P = 0.13). Changes in body weight, body fat and maximal oxygen consumption (VO(2) max) were not correlated with changes in sLOX-1 levels. In multiple regression analyses in all women combined, baseline sLOX-1 levels (β = -0.70 ± 0.06, P < 0.0001), age (β = 0.92 ± 0.43, P = 0.03) and baseline body mass index (BMI) (β = 1.88 ± 0.66, P = 0.006) were independent predictors of the change in sLOX-1 with weight loss.Conclusions:Weight loss interventions of equal energy deficit have similar effects on sLOX-1 levels in overweight and obese post-menopausal women, with the addition of aerobic exercise having no added benefit when performed in conjunction with CR.
Authors:
T E Brinkley; X Wang; N Kume; H Mitsuoka; B J Nicklas
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Publication Detail:
Type:  Journal Article; Randomized Controlled Trial; Research Support, N.I.H., Extramural     Date:  2010-09-21
Journal Detail:
Title:  International journal of obesity (2005)     Volume:  35     ISSN:  1476-5497     ISO Abbreviation:  Int J Obes (Lond)     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-06-14     Completed Date:  2011-09-09     Revised Date:  2012-05-04    
Medline Journal Info:
Nlm Unique ID:  101256108     Medline TA:  Int J Obes (Lond)     Country:  England    
Other Details:
Languages:  eng     Pagination:  793-9     Citation Subset:  IM    
Affiliation:
J Paul Sticht Center on Aging, Department of Internal Medicine, Section on Gerontology and Geriatric Medicine, Wake Forest University School of Medicine, Winston-Salem, NC 27157, USA. tbrinkle@wfubmc.edu
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MeSH Terms
Descriptor/Qualifier:
Aged
Body Mass Index
Caloric Restriction / methods*
Exercise*
Exercise Therapy
Female
Humans
Middle Aged
Obesity, Abdominal / blood*,  therapy
Overweight / blood,  therapy
Postmenopause / blood*
Receptors, Oxidized LDL / blood*,  genetics
Scavenger Receptors, Class E / blood*,  genetics
Weight Loss / genetics
Grant Support
ID/Acronym/Agency:
M01 RR007122-17/RR/NCRR NIH HHS; M01-RR07122/RR/NCRR NIH HHS; P30 AG021332-09/AG/NIA NIH HHS; P30-AG21332/AG/NIA NIH HHS; R01 AG020583-05/AG/NIA NIH HHS; R01 AG020583-08/AG/NIA NIH HHS; R01 HL093713/HL/NHLBI NIH HHS; R01-AG/DK20583/AG/NIA NIH HHS
Chemical
Reg. No./Substance:
0/Receptors, Oxidized LDL; 0/Scavenger Receptors, Class E

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