Influence of polymorphisms of the beta-2 adrenergic receptor on the presence of exercise-induced bronchospasm in adolescents

Autor: Cláudia Regina Cavaglieri, Neiva Leite, Gerusa Einsfeld Milano, Larissa Rosa da Silva, Cássio Leandro Mühe Consentino, Lupe Furtado-Alle, Luciane Viater Tureck, Leilane Lazarotto, Wendell Arthur Lopes
Rok vydání: 2016
Předmět:
Zdroj: Revista Paulista de Pediatria
Revista Paulista de Pediatria v.34 n.1 2016
Revista Paulista de Pediatria (Ed. Português. Online)
Sociedade de Pediatria de São Paulo (SPSP)
instacron:SPSP
Revista Paulista de Pediatria, Vol 34, Iss 1, Pp 24-29 (2016)
Revista Paulista de Pediatria, Volume: 34, Issue: 1, Pages: 24-29, Published: MAR 2016
ISSN: 2359-3482
DOI: 10.1016/j.rppede.2015.06.021
Popis: Objective: To determine the influence of polymorphisms of the beta-2 adrenergic receptor (ADRB2) in triggering exercise-induced bronchospasm (EIB) in adolescents. Methods: The subjects were divided into two groups: present EIB (EIB+) (n=45) and absent EIB (EIB−) (n=115). The bronchial provocation test with exercise was performed with a protocol that consisted of walking/running for at least eight minutes at high intensity, i.e., >85% of maximum heart rate, considering EIB+ as a 10% decrease in forced expiratory volume in one second (FEV1). The genotyping of the ADRB2 gene was performed by the Taqman method, using the Step One Plus system. Independent t-test, Mann–Whitney and Chi-square tests, as well as Spearman's correlation coefficient were used for the statistical analysis. Results: Age, body weight, height, FEV1, FVC and FEV1/FVC ratio were lower in the EIB+ group when compared to EIB− (p
Databáze: OpenAIRE