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Effects of smoking cessation on β-cell function, insulin sensitivity, body weight, and appetite.

Abstract：

OBJECTIVE:To stop smoking is commonly associated with significant weight gain, but the mechanisms for this are poorly understood. We assessed the effects of smoking cessation on body weight, insulin sensitivity, β-cell function, and appetite. SUBJECTS AND METHODS:Twenty-seven long-term smokers (n=27; nine females/18 males, 28±1 years, 22.9±0.6 kg/m(2)) attending an ambulatory smoking cessation program in a community hospital in Vienna, Austria were examined at baseline (Visit A; still smoking) and after a minimum of 3 months of smoking abstinence (Visit B; n=14); relapsed smokers were not followed up. Participants underwent 3-h oral glucose tolerance tests and body composition measurements at each study visit. Fasting (QUICKI) and dynamic (oral glucose insulin sensitivity (OGIS)) insulin sensitivity and β-cell secretion (insulinogenic index 140 (IGI40)) were calculated. Food intake was quantified with a free choice buffet. Fasting plasma concentrations of neuropeptide-Y (NPY), peptide-YY (PYY), glucagon-like peptide 1 (GLP1), leptin, ghrelin, and visfatin were measured. RESULTS:AFTER 3 MONTHS' SMOKING ABSTINENCE, BODY WEIGHT, AND FAT MASS WERE INCREASED (+4 AND +22% RESPECTIVELY, P0.05) AND FASTING INSULIN SENSITIVITY DETERIORATED (QUICKI: post, 0.37±0.02 vs baseline, 0.41±0.2; P<0.05), while OGIS remained unchanged throughout. IGI40 increased by 31% after >3 months' smoking abstinence (P<0.01). Carbohydrate ingestion increased after stopping smoking (P<0.05). NPY fasting levels were increased after >3 months (P<0.05), PYY, GLP1, leptin, ghrelin, and visfatin were unchanged. CONCLUSION:Smoking cessation is associated with transient metabolic changes including increased β-cell secretion in response to glucose and fasting insulin resistance. These alterations may be associated with or contribute to the body weight gain after smoking cessation.

journal_name

Eur J Endocrinol

journal_title

European journal of endocrinology

authors

Stadler M,Tomann L,Storka A,Wolzt M,Peric S,Bieglmayer C,Pacini G,Dickson SL,Brath H,Bech P,Prager R,Korbonits M

doi

10.1530/EJE-13-0590

subject

Has Abstract

pub_date

2014-02-01 00:00:00

pages

219-7

issue

eissn

0804-4643

issn

1479-683X

pii

EJE-13-0590

journal_volume

170

pub_type

杂志文章

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Effects of smoking cessation on β-cell function, insulin sensitivity, body weight, and appetite.