Influence of antidepressant drugs on DNA methylation of ion channels genes in blood cells of psychiatric patients

Author:

Nascimento Larissa Vilela1ORCID,Neto Francisco Lotufo2ORCID,Ribeiro Moreira Dalmo Antonio3ORCID,Cerutti Virginia Braga3,Thurow Helena Strelow4ORCID,Bastos Gisele Medeiros4ORCID,Ferreira Eric Batista5ORCID,Crespo Hirata Rosario Dominguez1ORCID,Hirata Mario Hiroyuki1ORCID

Affiliation:

1. Department of Clinical e Toxicological Analyses, School of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, 05508-000, Brazil

2. Institute of Psychiatry, School of Medicine, University of Sao Paulo, Sao Paulo, 01246-903, Brazil

3. Department of Electrophysiology & Cardiac Arrhythmias, Institute Dante Pazzanese of Cardiology, Sao Paulo, 04012-909, Brazil

4. Department of Teaching & Research, Real e Benemerita Associação Portuguesa de Beneficiência, Sao Paulo, 01323-001, Brazil

5. Institute of Exact Sciences, Federal University of Alfenas, Alfenas, 37130-001, Brazil

Abstract

Aim: This study investigated the influence of antidepressant drugs on methylation status of KCNE1, KCNH2 and SCN5A promoters and ECG parameters in adult psychiatric patients. Materials & methods: Electrocardiographic evaluation (24 h) and blood samples were obtained from 34 psychiatric patients before and after 30 days of antidepressant therapy. Methylation of promoter CpG sites of KCNE1, KCNH2 and SCN5A was analyzed by pyrosequencing. Results: Three CpG and four CpG sites of KCNE1 and SCN5A, respectively, had increased % methylation after treatment. Principal component analysis showed correlations of the methylation status with electrocardiographic variables, antidepressant doses and patient age. Conclusion: Short-term treatment with antidepressant drugs increase DNA methylation in KCNE1 and SCN5A promoters, which may induce ECG alterations in psychiatric patients.

Funder

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Fundação de Amparo à Pesquisa do Estado de São Paulo

Publisher

Future Medicine Ltd

Subject

Cancer Research,Genetics

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