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QTc interval prolongation is one of the most common antipsychotic-induced side effects which could lead to ventricular tachycardia or Torsade de Pointes, even cardiac arrest. There is very limited understanding on the genetic factors that associated with antipsychotic-induced QTc interval change. We conducted a genome-wide association study (GWAS) of antipsychotic-induced QTc interval change among patients with schizophrenia.

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EPB41L4A and LEP gene polymorphisms are associated with antipsychotic-induced QTc interval prolongation in Han Chinese.

Psychiatry Res

February 2020

Institute of Mental Health, Tianjin Anding Hospital, Tianjin Medical University, 13 Liulin Rd., Hexi District, Tianjin, 300222, China. Electronic address:

To identify the genetic factors related to antipsychotic-induced QTc interval prolongation (AIQTIP), we analyzed the associations between single nucleotide polymorphisms (SNPs) of candidate genes and quantitative traits of AIQTIP in a Han Chinese population. In total, we collected 112 hospitalized patients suffered from schizophrenia meeting the entry criteria, including 34 first-episode drug-naïve patients (FENP). All patients were treated with a single atypical antipsychotic drug (AAPD) for 4 weeks.

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Cornelia de Lange Syndrome is a rare genetic disorder that results in distinctive craniofacial deformities, developmental delay, hirsutism, and other physical abnormalities. Case reports suggest some of these patients exhibit sensitivity and paradoxical reactions to certain psychoactive drugs. This report of a 16-year-old male with Cornelia de Lange is the first to describe dystonia from a first-generation antipsychotic that did not respond to conventional treatment with diphenhydramine.

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A molecular pathway analysis informs the genetic risk for arrhythmias during antipsychotic treatment.

Int Clin Psychopharmacol

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Department of Clinical Medicine, Psychiatric Research Unit West, Aarhus University, Herning, Denmark.

Arrhythmias are a frequent and potentially fatal side effect of antipsychotic treatment. Strict ECG monitoring and clinical interviews are the standards used to prevent arrhythmias. A biologic predictive tool is missing.

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