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dc.contributor.authorMendes, Guilherme Falcão-
dc.contributor.authorReis, Caio Eduardo Gonçalves-
dc.contributor.authorNakano, Eduardo Yoshio-
dc.contributor.authorSpineli, Higor-
dc.contributor.authorBarreto, Gabriel-
dc.contributor.authorNoronha, Natália Yumi-
dc.contributor.authorWatanabe, Lígia Moriguchi-
dc.contributor.authorNonino, Carla Barbosa-
dc.contributor.authorAraujo, Gustavo Gomes de-
dc.contributor.authorSaunders, Bryan-
dc.contributor.authorZandonadi, Renata Puppin-
dc.date.accessioned2022-09-13T22:38:56Z-
dc.date.available2022-09-13T22:38:56Z-
dc.date.issued2022-08-16-
dc.identifier.citationMENDES, Guilherme Falcão et al. Can the Brazilian caffeine expectancy questionnaires differentiate the CYP1A2 and ADORA2A gene polymorphisms?: an exploratory study with Brazilian athletes. Nutrients, Basel, v. 14, n.16, art. 3355, 2022. DOI 10.3390/nu14163355. Disponível em: https://www.mdpi.com/2072-6643/14/16/3355. Acesso em: 13 set. 2022.pt_BR
dc.identifier.urihttps://repositorio.unb.br/handle/10482/44808-
dc.language.isoInglêspt_BR
dc.publisherMDPIpt_BR
dc.rightsAcesso Abertopt_BR
dc.titleCan the Brazilian caffeine expectancy questionnaires differentiate the CYP1A2 and ADORA2A gene polymorphisms? : an exploratory study with Brazilian athletespt_BR
dc.typeArtigopt_BR
dc.subject.keywordCafeínapt_BR
dc.subject.keywordReceptores A2 de adenosinapt_BR
dc.subject.keywordEsforço físicopt_BR
dc.subject.keywordAtletas - aspectos fisiológicospt_BR
dc.rights.licenseNutrients - This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ 4.0/). Fonte: https://www.mdpi.com/openaccess. Acesso em: 13 set. 2022.pt_BR
dc.identifier.doihttps://doi.org/10.3390/nu14163355pt_BR
dc.description.abstract1This study investigated the ability of the Brazilian Caffeine Expectancy Questionnaire (CaffEQ-BR), full and brief versions, to differentiate genetic profiles regarding the polymorphisms of the CYP1A2 (rs 762551) and ADORA2A (rs 5751876) genes in a cohort of Brazilian athletes. Onehundred and fifty participants were genotyped for CYP1A2 and ADORA2A. After the recruitment and selection phase, 71 (90% male and 10% female, regular caffeine consumers) completed the CaffEQ-BR questionnaires and a self-report online questionnaire concerning sociodemographic data, general health status, and frequency of caffeine consumption. The order of completion of the CaffEQBR questionnaires was counterbalanced. The concordance between the full and brief versions of the CaffEQ-BR was analyzed using the intraclass correlation coefficient (ICC). To determine the discriminatory capacity of the questionnaires for genotype, the receiver operating characteristic (ROC) curve was applied for sensitivity and specificity (significance level of 5%). Mean caffeine intake was 244 161 mg day􀀀1. The frequency of AA genotypes for CYP1A2 was 47.9% (n = 34) and 52.1% (n = 37) for C-allele carriers (AC and CC). The frequencies of TT genotypes for ADORA2A were 22.7% (n = 15) and 77.3% (n = 51) for C-allele carriers (TC and CC). All CaffEQ-BR factors, for the full and brief versions, were ICCs > 0.75, except for factor 6 (anxiety/negative effects; ICC = 0.60), and presented ROC curve values from 0.464 to 0.624 and 0.443 to 0.575 for CYP1A2 and ADORA2A. Overall, the CaffEQ-BR (full and brief versions) did not show discriminatory capacity for CYP1A2 and ADORA2A gene polymorphisms. In conclusion, the CaffEQ-BR was not able to differentiate genotypes for the CYP1A2 or ADORA2A genes in this group of Brazilian athletes.pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-4985-6996pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7260-9497pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-9071-8512pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-9589-8586pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7498-6165pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0995-9077pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0003-0370-3089pt_BR
dc.contributor.emailmailto:guile.fm@gmail.compt_BR
dc.contributor.emailmailto:renatapz@yahoo.com.brpt_BR
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