Document Detail


Relation of B-type natriuretic peptide levels to body mass index after comprehensive lifestyle changes.
MedLine Citation:
PMID:  20494664     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Cross-sectional studies have reported inverse associations of B-type natriuretic peptide (BNP) with the body mass index (BMI). We evaluated whether changes in the BMI are associated with changes in BNP. A nested prospective cohort study of a lifestyle intervention (low-fat, whole-foods diet, exercise, stress management, and social support) was conducted. BNP, BMI, and other biomarkers were measured at baseline and 3 months. A total of 131 subjects, 56 with coronary heart disease (CHD) and 75 at high risk, with > or =3 CHD risk factors and/or diabetes mellitus, were enrolled. At 3 months, the mean BMI had decreased (34.4 to 31.7 kg/m(2), p <0.001), BNP had increased (median 18 to 28 pg/ml, p <0.001), and low-density lipoprotein, C-reactive protein, apolipoprotein B (all p <0.002), and angina frequency (p = 0.017) and severity (p = 0.052) had decreased. The subjects' physical limitations had decreased and their physical functioning had improved (all p <0.001). The percentage of change in BNP was inversely associated with the percentage of change in insulin (r = -0.339, p = 0.005, n = 63 nondiabetics). It was also inversely associated with the percentage of change in BMI (r = -0.28, p = 0.002, n = 116), and this association remained significant (p = 0.029) in multiple regression analyses controlling for age, gender, CHD, diabetes mellitus, percentage of change in lifestyle index, and beta-blocker use. The metabolic changes related to adipose tissue lipolysis could explain these findings. In conclusion, BNP increased in subjects experiencing weight loss while following a lifestyle intervention, and angina pectoris, physical limitations, and other CHD risk factors decreased. Therefore, in this context, increasing BNP might not indicate worsening disease or a worsening prognosis. Thus, the proposed use of BNP in monitoring disease progression should take into account changes in the BMI during the same period.
Authors:
Nita Chainani-Wu; Gerdi Weidner; Daniel M Purnell; Steven Frenda; Terri Merritt-Worden; Colleen Kemp; Edward Kersh; Dean Ornish
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Publication Detail:
Type:  Journal Article; Multicenter Study; Research Support, U.S. Gov't, Non-P.H.S.     Date:  2010-04-10
Journal Detail:
Title:  The American journal of cardiology     Volume:  105     ISSN:  1879-1913     ISO Abbreviation:  Am. J. Cardiol.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-05-24     Completed Date:  2010-07-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0207277     Medline TA:  Am J Cardiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1570-6     Citation Subset:  AIM; IM    
Copyright Information:
Copyright 2010 Elsevier Inc. All rights reserved.
Affiliation:
Preventive Medicine Research Institute, Sausalito, California; University of California, San Francisco, California, USA. nita.wu@ucsf.edu
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MeSH Terms
Descriptor/Qualifier:
Aged
Biological Markers / blood
Body Mass Index*
California
Cohort Studies
Coronary Disease / blood*,  diagnosis
Diabetes Complications / blood
Female
Humans
Life Style*
Male
Middle Aged
Natriuretic Peptide, Brain / blood*
Pennsylvania
Prognosis
Prospective Studies
Regression Analysis
Risk Factors
Severity of Illness Index
West Virginia
Chemical
Reg. No./Substance:
0/Biological Markers; 114471-18-0/Natriuretic Peptide, Brain

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


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