Cited by 52Smoking Behavior and CessationRegulation of Appetite and ObesityPharmacology and Obesity Treatment

Tabagismo e variação ponderal: a fisiopatologia e genética podem explicar esta associação?

Open access
Chatkin, Raquel, Chatkin, José Miguel·2007·Jornal Brasileiro de Pneumologia

Abstract

O tabagismo é a principal causa de morte prevenível na maioria dos países, inclusive no Brasil. Parar de fumar é uma estratégia importante para reduzir a morbidade e mortalidade associada às doenças tabaco-relacionadas. Sabe-se da relação inversa entre uso de nicotina e peso corporal, onde o índice de massa corporal tende a ser menor em fumantes quando comparados aos não fumantes. Além disso, abstinência tabágica resulta em aumento de peso, sendo que ex-fumantes geralmente aumentam de 5 a 6 kg, mas cerca de 10% adquirem mais de 10 kg. O tratamento farmacológico para a cessação do tabagismo pode atenuar este ganho de peso. O aumento de peso na cessação do tabagismo como contributório à epidemia de obesidade é pouco estudado. Nos EUA, calcula-se que a fração do problema atribuível à cessação do tabagismo seja de 6% para homens e 3,2% para mulheres. Os mecanismos não são claros, mas há evidências mostrando que a dopamina e serotonina diminuem a ingestão alimentar. A administração de nicotina por qualquer via eleva agudamente os níveis destes neurotransmissores no cérebro, causando menor necessidade de ingestão energética e diminuindo o apetite. Além disso, a nicotina tem efeito direto no metabolismo do tecido adiposo, influenciando a taxa de ganho ponderal após a cessação do tabagismo. A leptina, grelina e neuropeptídio Y são peptídeos que podem contribuir para esta relação inversa entre nicotina e índice de massa corporal, em um papel ainda não determinado como conseqüente ou causador das variações ponderais.

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Crossref · 10.1590/s1806-37132007000600016

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  • Nicotine inhibits food ingestion by stimulating the secretion of both dopamine and serotonin.

    “This is probably because nicotine, a major addictive substance in cigarettes, inhibits food ingestion by stimulating the secretion of both dopamine and serotonin [37].”
  • Effects of smoking on body weight are due to nicotine, which suppresses appetite and promotes increased serum concentrations of dopamine and serotonin, inhibiting food ingestion.

    “Effects of smoking on body weight are due to nicotine, which suppresses appetite and promotes the increase in serum concentrations of dopamine and serotonin, with the inhibition of food ingestion [25].”

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Research works printed but not linked: 2

  1. J Bras Pneumol. 2007;33(6):712-719 smoking cessation treatment in a Brazilian real-life setting. Int J Tuberc Lung Dis. 2006;10(5):499-503.
  2. Chatkin JM. The influence of genetics on nicotine dependence and the role of pharmacogenetics in treating the smoking habit. J Bras Pneumol. 2006;32(6):573-9. Review. English, Portuguese.

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Authors
Chatkin, R., & Chatkin, J. M.
Affiliations
Pontifícia Universidade Católica do Rio Grande do Sul (BR)
Venue
Jornal Brasileiro de Pneumologia
Published
2007-12
Volume
33
Issue
6
Pages
712-719
ISSN
1806-3713 (ISSN-L)
OpenAlex
W2031350152
Cited by
52
References
60
Citations by year
2026: 4 · 2025: 1 · 2024: 1 · 2022: 3 · 2021: 5 · 2020: 1 · 2019: 3 · 2018: 3 · 2015: 7 · 2014: 1 · 2013: 7 · 2012: 4
FWCI
1.11
Type
journal article
Language
pt
Open access
Licence
cc-by-nc
Locations
  • Jornal Brasileiro de Pneumologia (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
  • Americanae (AECID Library) (submittedVersion, other-oa)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Health Sciences › Medicine › Physiology › Smoking Behavior and Cessation
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Medicine › Pharmacology › Pharmacology and Obesity Treatment
Keywords
smoking, tobacco use, body weight, nicotine, obesity, appetite suppression, dopamine, serotonin, leptin, ghrelin, neuropeptide Y, adipose tissue metabolism, genetic factors, pathophysiology
MeSH terms
Appetite Regulation, Body Weight, Female, Humans, Hunger, Male, Neuropeptide Y, Nicotine, Obesity, Polymorphism, Genetic, Risk-Taking, Sex Factors, Smoking, Weight Gain, Body Mass Index, Smoking Cessation, Leptin, Ghrelin

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