RESEARCH PAPER
Acute effect of smoking on plasma Obestatin levels
 
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1
Department of Endocrinology, Medical School Democritus University of Thrace, Alexandroupolis, Greece
2
Department of Pneumonology, Medical School Democritus University of Thrace, Alexandroupolis, Greece
3
1st Department of Pneumonology, GH "G Papanikolaou", Thessaloniki, Greece
4
Department of Nuclear Medicine, Medical School University of Crete, Heraklion, Greece
CORRESPONDING AUTHOR
Stavros Tryfon Tryfon   

1st Department of Pneumonology, GH “G Papanikolaou”, Thessaloniki, Greece
Publish date: 2010-01-07
 
Tobacco Induced Diseases 2010;8(January):2
KEYWORDS
ABSTRACT
Background:
Smoking and smoking cessation are considered to be associated with weight changes. We have recently shown that smoking acutely increases plasma levels of ghrelin, a known orexigenic hormone. Obestatin is a peptide encoded by the ghrelin gene, which opposes ghrelin effects on food intake. We conducted a study in adult volunteers measuring plasma levels of obestatin immediately after initiation of smoking.

Methods:
31 volunteers (mean age 32.2 ± 9.2 years and mean BMI 25.7 ± 4.1), 17 smokers and 14 non-smokers, were enrolled in our study. The 2 groups were matched in age and BMI. Plasma obestatin concentrations were determined at baseline (T0), 2 (T2), 5 (T5), 15 (T15), and 60 (T60) minutes after the initiation of smoking.

Results:
In all 31 subjects, no significant difference in the mean values of plasma obestatin levels was observed from baseline at T2, T5, T15 and T60 after initiation of smoking (overall p = 0.15). However, a trend for higher obestatin levels was noted in smokers vs non-smokers (overall p = 0.069), which was not related to the pack-years.

Conclusion:
On the contrary with ghrelin's response after smoking initiation, there is no such an acute response of plasma obestatin levels.

 
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