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Impact of genetic variations in ADORA2A gene on depression and symptoms: a cross-sectional population-based study.

ABSTRACT: Genetic variants involved in adenosine metabolism and its receptors were associated with increased risk for psychiatric disorders, including anxiety, depression, and schizophrenia. Here, we examined an association between a single nucleotide polymorphism in A2A receptor gene (ADORA2A, rs2298383 SNP) with current depressive episode and symptom profile. A total of 1253 individuals from a cross-sectional population-based study were analyzed by the Mini International Neuropsychiatric Interview 5.0. Our data showed that the TT genotype of ADORA2A rs2298383 SNP was associated with reduced risk for depression when compared to the CC/CT genotypes (p?=?0.020). This association remained significant after adjusting for confounding variables such as smoking, gender, socioeconomic class, and ethnicity (OR?=?0.631 (95% CI 0.425-0.937); p?=?0.022). Regarding the symptoms associated with depression, we evaluated the impact of the ADORA2A SNP in the occurrence of sad/discouraged mood, anhedonia, appetite changes, sleep disturbances, motion changes, energy loss, feelings of worthless or guilty, difficulty in concentrating, and presence of bad thoughts. Notably, the TT genotype was independently associated with reduced sleep disturbances (OR?=?0.438 (95% CI 0.258-0.743); p?=?0.002) and less difficulty in concentrating (OR?=?0.534 (95% CI 0.316-0.901; p?=?0.019). The cross-sectional design cannot evaluate the cause-effect relationship and did not evaluate the functional consequences of this polymorphism. Our data support an important role for ADORA2A rs2298383 SNP in clinical heterogeneity associated with depression. The presence of the TT genotype was associated with decrease risk for current depression and disturbances in sleep and attention, two of the most common symptoms associated with this disorder.

SUBMITTER: Oliveira S

PROVIDER: S-EPMC6439088 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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Impact of genetic variations in ADORA2A gene on depression and symptoms: a cross-sectional population-based study.

Oliveira Sílvia S Ardais Ana Paula AP Bastos Clarissa Ribeiro CR Gazal Marta M Jansen Karen K de Mattos Souza Luciano L da Silva Ricardo Azevedo RA Kaster Manuella Pinto MP Lara Diogo Rizzato DR Ghisleni Gabriele G

Purinergic signalling 20181203 1

Genetic variants involved in adenosine metabolism and its receptors were associated with increased risk for psychiatric disorders, including anxiety, depression, and schizophrenia. Here, we examined an association between a single nucleotide polymorphism in A<sub>2A</sub> receptor gene (ADORA2A, rs2298383 SNP) with current depressive episode and symptom profile. A total of 1253 individuals from a cross-sectional population-based study were analyzed by the Mini International Neuropsychiatric Inte ...[more]

PMID: 30511252

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Dataset Information

Impact of genetic variations in ADORA2A gene on depression and symptoms: a cross-sectional population-based study.

Publications

Impact of genetic variations in ADORA2A gene on depression and symptoms: a cross-sectional population-based study.

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