Document Detail


The influence of body mass index and renin-angiotensin-aldosterone system activity on the relationship between 25-hydroxyvitamin D and adiponectin in Caucasian men.
MedLine Citation:
PMID:  21402748     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: Previous studies have suggested that circulating adiponectin concentrations are associated positively with vitamin D and negatively with body mass index (BMI) but have not accounted for the influence of the renin-angiotensin-aldosterone system (RAAS) in this relationship. This is particularly relevant because increased RAAS activity is associated with obesity and is known to lower adiponectin levels. We evaluated the association between adiponectin and 25-hydroxyvitamin D (25(OH)D) after controlling RAAS activity with dietary sodium equilibration and also evaluated whether this relationship was influenced by BMI.
DESIGN: Cross-sectional study of 115 hypertensive Caucasian men from the Hypertensive Pathotype Consortium.
METHODS: To manipulate RAAS activity, all subjects underwent 1 week of high dietary sodium (HS) diet to suppress RAAS and 1 week of low dietary sodium (LS) diet to stimulate RAAS. Linear regression was used to evaluate the association between adiponectin and 25(OH)D, and the effect of BMI on this relationship, in each dietary condition.
RESULTS: Adiponectin was higher on HS, where circulating RAAS activity was low, when compared with LS (HS=2.9 versus LS=2.4 μg/ml, P<0.0001). 25(OH)D levels were positively associated with adiponectin, and BMI was a statistically significant effect modifier of the relationship between 25(OH)D and adiponectin on both diets (P interaction <0.01 between BMI and 25(OH)D).
CONCLUSIONS: Higher 25(OH)D concentrations were independently associated with higher adiponectin levels, particularly when BMI was high. Dietary sodium balance and circulating RAAS activity did not appear to affect this relationship. Future studies should explore whether vitamin D supplementation increases adiponectin levels in obesity.
Authors:
Anand Vaidya; John P Forman; Patricia C Underwood; Paul N Hopkins; Gordon H Williams; Luminita H Pojoga; Jonathan S Williams
Related Documents :
4063328 - Experimental zinc deficiency in guinea-pigs: clinical signs and some haematological stu...
8424388 - Trace element intakes and dietary phytate/zn and ca x phytate/zn millimolar ratios of p...
234528 - Alteration of porcine skin acid mucopolysaccharides in zinc deficiency.
10395588 - Dietary retinol inhibits inflammatory responses of rats treated with monocrotaline.
22474578 - Changes in serum lipids and blood glucose in non diabetic patients with metabolic syndr...
21676848 - Fish oil: what is the role in cardiovascular health?
Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't     Date:  2011-03-14
Journal Detail:
Title:  European journal of endocrinology / European Federation of Endocrine Societies     Volume:  164     ISSN:  1479-683X     ISO Abbreviation:  Eur. J. Endocrinol.     Publication Date:  2011 Jun 
Date Detail:
Created Date:  2011-05-30     Completed Date:  2011-07-29     Revised Date:  2012-02-08    
Medline Journal Info:
Nlm Unique ID:  9423848     Medline TA:  Eur J Endocrinol     Country:  England    
Other Details:
Languages:  eng     Pagination:  995-1002     Citation Subset:  IM    
Affiliation:
Division of Endocrinology, Diabetes, and Hypertension, Brigham and Women's Hospital, 221 Longwood Avenue, RFB 386, Boston, Massachusetts 02115, USA. avaidya1@partners.org
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adiponectin / blood*
Adipose Tissue / physiology
Adult
Aged
Body Mass Index*
Cross-Sectional Studies
European Continental Ancestry Group
Homeostasis / physiology
Humans
Hydroxycholecalciferols / blood*
Hypertension / blood
Insulin Resistance / physiology
Linear Models
Male
Middle Aged
Renin-Angiotensin System / physiology*
Sodium, Dietary / pharmacology
Grant Support
ID/Acronym/Agency:
F31 NR011108-01/NR/NINR NIH HHS; F31 NR011108-03/NR/NINR NIH HHS; F32 HL104776-01/HL/NHLBI NIH HHS; F32 HL104776-01/HL/NHLBI NIH HHS; K08 HL079929/HL/NHLBI NIH HHS; K08 HL079929-04/HL/NHLBI NIH HHS; K23 HL08236-03/HL/NHLBI NIH HHS; K23 HL084236-04/HL/NHLBI NIH HHS; KL2 RR025757/RR/NCRR NIH HHS; M01-RR02635/RR/NCRR NIH HHS; P50HL055000/HL/NHLBI NIH HHS; U54LM008748/LM/NLM NIH HHS; UL1 RR025758/RR/NCRR NIH HHS
Chemical
Reg. No./Substance:
0/Adiponectin; 0/Hydroxycholecalciferols; 0/Sodium, Dietary

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  The bone marrow stem cell niche grows up: mesenchymal stem cells and macrophages move in.
Next Document:  Do muscle fiber conduction slowing and decreased levels of circulating muscle proteins represent sen...