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Plasma leptin concentrations and lipid profiles during nicotine abstinence
1Department of Medicine, Vanderbilt University School of Medicine, Nashville, Tennessee 37232-6303, USA.
The American Journal of the Medical Sciences
|September 16, 1999
Summary
Smoking cessation often leads to weight gain. This study found that nicotine abstinence did not alter body weight or leptin levels in smokers on a controlled diet, though HDL cholesterol increased.
Area of Science:
- Endocrinology
- Metabolic Syndrome
- Smoking Cessation Research
Background:
- Weight gain is a common outcome following smoking cessation.
- Leptin, regulated by the obese gene, influences appetite and body fat.
- Understanding leptin's role is crucial for managing postcessation weight gain.
Purpose of the Study:
- To investigate changes in leptin levels during nicotine abstinence (NA).
- To assess alterations in lipid metabolism after smoking cessation.
- To determine the role of leptin in weight gain post-smoking cessation.
Main Methods:
- Six sedentary, nonobese adult smokers participated.
- Subjects underwent 7 days of NA with nicotine polacrilex gum use.
- A weight-maintenance diet was followed, with blood samples collected pre- and post-abstinence.
Main Results:
- Body weight remained stable during the 7-day NA period.
- Fasting leptin levels did not significantly change.
- High-density lipoprotein (HDL) cholesterol increased by 15% after NA.
Conclusions:
- Nicotine abstinence did not affect body weight or leptin levels under controlled dietary conditions.
- Leptin does not appear to mediate weight gain during short-term smoking cessation.
- Increased HDL cholesterol suggests potential metabolic benefits of NA.