Alteration of inflammatory adipokines after four months of smoking abstinence in multidisciplinary intervention program / Cambio en las adipocinas inflamatorias tras cuatro meses de abstinencia de fumar en un programa de intervención multimodal

Background: many endocrine-metabolic changes are involved in smoking. Objectives: to evaluate serum concentrations of inflammatory adipokines in smokers at baseline and after four months of treatment for smoking cessation. Methods: the serum concentrations of inflammatory cytokines were evaluated in smokers and abstinent. Nutritional assessment was based on measurements of body weight, height, and waist circumference (WC), to calculate body mass index (BMI), body adiposity index (BAI) and waist-to-height ratio (WHtR). Biochemical parameters were analyzed: total cholesterol, LDL-c, HDL-c, triglycerides, glucose, cortisol and insulin. The serum levels of leptin, adiponectin and ghrelin were determined by enzyme-linked immunosorbent assay (ELISA). The leptin/adiponectin ratio (L/A) was calculated. Results: a total of 29 subjects were included in this study (22 women and seven men). The mean age of participants was 50.7 ± 10.47 years. The medium values of WHtR and BAI were above of the proposed cutoff point, indicating abdominal obesity. The biochemical parameters did not present statistically significant differences when comparing the initial and final values. At the end of treatment, the abstinent had higher levels of adiponectin when compared to those who remained smoker (p = 0.024). There was an increase in leptin levels and L/A, and a reduction in adiponectin levels after the treatment in abstinent and smokers (p < 0.05). Conclusion: this study has demonstrated that smoking cessation improves adiponectin levels when compared with smokers. Leptin and L/A levels increased throughout the treatment in both groups. The increased values of leptin and L/A in abstinent participants may indicate risk of metabolic events associated with smoking history that should be investigated

Introducción: en el tabaquismo están involucrados un gran número de cambios endocrino-metabólicos. Objetivos: evaluar las concentraciones séricas de adipocinas inflamatorias en fumadores al inicio y después de cuatro meses de tratamiento para dejar de fumar. Métodos: se evaluaron las concentraciones séricas de citocinas inflamatorias en fumadores y no fumadores. La evaluación nutricional se basó en las mediciones del peso corporal y la altura, para calcular el índice de masa corporal (IMC), la circunferencia de la cintura (CC), el índice de adiposidad corporal (IAC) y la relación cintura/estatura (RCE). Se analizaron los parámetros bioquímicos: colesterol total, LDL-c, HDL-c, triglicéridos, glucosa, cortisol e insulina. Los niveles séricos de leptina, adiponectina y grelina se determinaron mediante ensayo de inmunoabsorción enzimática (ELISA). Se calculó la relación leptina/adiponectina (L/A). Resultados: se incluyeron un total de 29 personas (22 mujeres y siete hombres). La edad media de los participantes fue de 50,7 ± 10,47 años. Los valores medios de CC e IAC se mostraron por encima del punto de corte propuesto, indicando obesidad abdominal. Los parámetros bioquímicos no presentaron diferencias estadísticamente significativas al comparar los valores iniciales y finales. Al final del tratamiento, los abstinentes tenían niveles más altos de adiponectina cuando se comparaban con los de aquellos que seguían fumando (p = 0,024). Hubo un aumento en los niveles de leptina y L/A y reducción de los niveles de adiponectina después del tratamiento en abstinentes y fumadores (p < 0,05). Conclusiones: este estudio ha demostrado que el abandono del hábito de fumar mejora los niveles de adiponectina en comparación con los fumadores. Los niveles de leptina y L/A aumentaron a lo largo del tratamiento en ambos grupos. Los valores aumentados de leptina y L/A en abstinentes pueden indicar riesgo de eventos metabólicos asociados al historial de tabaquismo que deben ser investigados

Influence of the leptin and cortisol levels on craving and smoking cessation.

Leptin inhibits cortisol release and may increase the craving for cigarettes, hindering the process of smoking cessation. We evaluate the influence of the initial concentration of cortisol and serum leptin on craving and smoking status in individuals after one month of treatment for smoking cessation. The leptin concentration was adjusted by the Initial Body Mass Index (BMI) (leptin/BMI) and the initial percentage of body fat (%BF) (leptin/%BF). The craving was assessed using the Questionnaire of Smoking Urges-Brief (QSU-Brief). The QSU-Brief was assessed about a score of factor 1 (positive reinforcement by tobacco), and factor 2 (negative reinforcement by tobacco). Correlation was found between QSU-Brief (Factor 1 and 2) with the initial concentration of leptin/BF% among those who continued to smoke. There was a negative correlation between cortisol levels and leptin/%BF in individuals who remained smokers after 1 month. There was a positive correlation between leptin/BMI and leptin/%BF with the QSU-Brief (Factor 2) of 1 month in women who remained smokers (r=0.565; p=0.023) and the QSU-Brief (Factor 2) initial among the abstinent women (r=0.551; p=0.033). The highest concentrations of leptin were associated with greater craving and difficulty in achieve abstinence.