Genetic polymorphisms (FTO rs9939609 and TMEM18 rs6548238), adipokines (leptin and adiponectin) and adiposity in children and adolescents with asthma

Objective: To describe independent factors related to the interaction of FTO rs9939609, TMEM18 rs6548238, leptin, and adiponectin in children/adolescents with asthma, under the influence of obesity. Methods: The authors performed a cross-sectional study with 57 children/adolescents, ages 8–19 years,...

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Main Authors: Marta Evangelho Machado, Luis C. Porto, Jeane S. Nogueira, Clemax C. Sant´Anna, José R. Lapa e Silva
Format: Article
Language:English
Published: Elsevier 2025-01-01
Series:Jornal de Pediatria
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Online Access:http://www.sciencedirect.com/science/article/pii/S0021755724000974
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author Marta Evangelho Machado
Luis C. Porto
Jeane S. Nogueira
Clemax C. Sant´Anna
José R. Lapa e Silva
author_facet Marta Evangelho Machado
Luis C. Porto
Jeane S. Nogueira
Clemax C. Sant´Anna
José R. Lapa e Silva
author_sort Marta Evangelho Machado
collection DOAJ
description Objective: To describe independent factors related to the interaction of FTO rs9939609, TMEM18 rs6548238, leptin, and adiponectin in children/adolescents with asthma, under the influence of obesity. Methods: The authors performed a cross-sectional study with 57 children/adolescents, ages 8–19 years, at a tertiary hospital, from 2017 to 2018. Participants were classified by nutritional status, performed spirometry with a bronchodilator test and completed an asthma questionnaire, higher scores indicated more asthma symptoms. Two asthma groups were formed: Group 1(G1)-normal-weight; Group 2(G2)-overweight/obese. Serum was collected for adipokines (n = 32) and genetic polymorphisms (n = 53) dosages. Results: Age and body mass index (BMI) correlated directly in normal-weight (p = 0.009) and obese participants (p = 0.004). Girls reported more asthma complaints (p = 0.044). Participants with negative bronchodilator responses presented lower BMI (14.55–17.16) than responders (19.4–26.84) (p = 0.049). Leptin dosages are related directly to BMI (5,34–40 ng/ml in obese × 0,54–42 ng/ml in nonobese) (p = 0.003). Levels were high in girls (4.78–17.55 µg/ml) (p = 0.029) and low in nonobese boys (0.54–6.92 µg/ml) (p = 0.006). In obese, low leptin levels (< 10 ng/ml) were found in small airway dysfunction carriers (p = 0.025); elevated adiponectin (> 5 µg/ml) correlated with FEV1/FVC > 80 % (p = 0.035) and positive bronchodilator tests (8.84–13 µg/ml) (p = 0.039); and FTO A allele correlated with low adiponectin 0–8.84 µg/ml (p = 0.021) and low FEV1/FVC (46 %-88 %) (p = 0.023). Conclusion: BMI correlated directly with age and leptin levels. Obese participants presented high serum levels of leptin and FTO A allele correlated with low FEV1/FVC. Larger cohorts are necessary for better elucidation of the role of adipokines and polymorphisms in the pathophysiology of asthma and obesity.
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spelling doaj-art-3fa26d0ccccc414b8d2446ab0b34b7002025-01-04T04:55:47ZengElsevierJornal de Pediatria0021-75572025-01-0110118995Genetic polymorphisms (FTO rs9939609 and TMEM18 rs6548238), adipokines (leptin and adiponectin) and adiposity in children and adolescents with asthmaMarta Evangelho Machado0Luis C. Porto1Jeane S. Nogueira2Clemax C. Sant´Anna3José R. Lapa e Silva4Universidade Federal do Rio de Janeiro (UFRJ), Programa de Pós-graduação em Clínica Médica (PPGCM - HU), Rio de Janeiro, RJ, Brazil; Fundação Técnico-Educacional Souza Marques, Departamento de Pediatria – Pólo Itanhangá, Rio de Janeiro, RJ, Brazil; Corresponding author.Universidade do Estado do Rio de Janeiro (UERJ), Laboratório de Histocompatibilidade e Criopreservação (HLA - PPC), Rio de Janeiro, RJ, BrazilUniversidade do Estado do Rio de Janeiro (UERJ), Laboratório de Histocompatibilidade e Criopreservação (HLA - PPC), Rio de Janeiro, RJ, BrazilUniversidade Federal do Rio de Janeiro (UFRJ), Programa de Pós-graduação em Clínica Médica (PPGCM - HU), Rio de Janeiro, RJ, BrazilUniversidade Federal do Rio de Janeiro (UFRJ), Programa de Pós-graduação em Clínica Médica (PPGCM - HU), Rio de Janeiro, RJ, BrazilObjective: To describe independent factors related to the interaction of FTO rs9939609, TMEM18 rs6548238, leptin, and adiponectin in children/adolescents with asthma, under the influence of obesity. Methods: The authors performed a cross-sectional study with 57 children/adolescents, ages 8–19 years, at a tertiary hospital, from 2017 to 2018. Participants were classified by nutritional status, performed spirometry with a bronchodilator test and completed an asthma questionnaire, higher scores indicated more asthma symptoms. Two asthma groups were formed: Group 1(G1)-normal-weight; Group 2(G2)-overweight/obese. Serum was collected for adipokines (n = 32) and genetic polymorphisms (n = 53) dosages. Results: Age and body mass index (BMI) correlated directly in normal-weight (p = 0.009) and obese participants (p = 0.004). Girls reported more asthma complaints (p = 0.044). Participants with negative bronchodilator responses presented lower BMI (14.55–17.16) than responders (19.4–26.84) (p = 0.049). Leptin dosages are related directly to BMI (5,34–40 ng/ml in obese × 0,54–42 ng/ml in nonobese) (p = 0.003). Levels were high in girls (4.78–17.55 µg/ml) (p = 0.029) and low in nonobese boys (0.54–6.92 µg/ml) (p = 0.006). In obese, low leptin levels (< 10 ng/ml) were found in small airway dysfunction carriers (p = 0.025); elevated adiponectin (> 5 µg/ml) correlated with FEV1/FVC > 80 % (p = 0.035) and positive bronchodilator tests (8.84–13 µg/ml) (p = 0.039); and FTO A allele correlated with low adiponectin 0–8.84 µg/ml (p = 0.021) and low FEV1/FVC (46 %-88 %) (p = 0.023). Conclusion: BMI correlated directly with age and leptin levels. Obese participants presented high serum levels of leptin and FTO A allele correlated with low FEV1/FVC. Larger cohorts are necessary for better elucidation of the role of adipokines and polymorphisms in the pathophysiology of asthma and obesity.http://www.sciencedirect.com/science/article/pii/S0021755724000974Single nucleotide polymorphismGeneAlleleObesityOverweightAsthma
spellingShingle Marta Evangelho Machado
Luis C. Porto
Jeane S. Nogueira
Clemax C. Sant´Anna
José R. Lapa e Silva
Genetic polymorphisms (FTO rs9939609 and TMEM18 rs6548238), adipokines (leptin and adiponectin) and adiposity in children and adolescents with asthma
Jornal de Pediatria
Single nucleotide polymorphism
Gene
Allele
Obesity
Overweight
Asthma
title Genetic polymorphisms (FTO rs9939609 and TMEM18 rs6548238), adipokines (leptin and adiponectin) and adiposity in children and adolescents with asthma
title_full Genetic polymorphisms (FTO rs9939609 and TMEM18 rs6548238), adipokines (leptin and adiponectin) and adiposity in children and adolescents with asthma
title_fullStr Genetic polymorphisms (FTO rs9939609 and TMEM18 rs6548238), adipokines (leptin and adiponectin) and adiposity in children and adolescents with asthma
title_full_unstemmed Genetic polymorphisms (FTO rs9939609 and TMEM18 rs6548238), adipokines (leptin and adiponectin) and adiposity in children and adolescents with asthma
title_short Genetic polymorphisms (FTO rs9939609 and TMEM18 rs6548238), adipokines (leptin and adiponectin) and adiposity in children and adolescents with asthma
title_sort genetic polymorphisms fto rs9939609 and tmem18 rs6548238 adipokines leptin and adiponectin and adiposity in children and adolescents with asthma
topic Single nucleotide polymorphism
Gene
Allele
Obesity
Overweight
Asthma
url http://www.sciencedirect.com/science/article/pii/S0021755724000974
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