Poststroke emotional disturbances and a tryptophan hydroxylase 2 gene polymorphism

Brain and Behavior
Mihye KoJong S Kim

Abstract

Emotional dysfunction is a common finding in stroke patients. Despite reports on serotonergic involvement in the etiology of poststroke emotional dysfunction (PSED), the role of serotonin synthesizing tryptophan hydroxylase 2 (TPH2) genes in the development of PSED remains unclear. Genotyping of TPH2 rs4641528 and rs10879355 was performed from genomic DNA of 383 stroke patients collected previously and stored at -70°C. Potential associations between TPH2 genes and poststroke depression (PSD), poststroke emotional incontinence (PSEI), and poststroke anger proneness (PSAP) were investigated 3 months poststroke. Among the 383 patients, 69 (18%) had PSD, 41 (11%) had PSEI, and 93 (24%) had PSAP. The TPH2 rs4641528 genotype frequencies differed significantly between patients with and without either PSD or PSEI, although no significant differences were found between the patients with and without PSAP. In multiple logistic regression analysis, PSD was related to the National Institutes of Health Stroke Scale (NIHSS) score at admission (95% confidence interval [CI]: 1.047-1.230, p < .01), modified Rankin scale score at 3 months (95% CI: 0.135-0.848, p < .05), and TPH2 rs4641528 C allele (95% CI: 1.039-5.631, p < .05), whereas PSEI was ...Continue Reading

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Citations

Sep 5, 2018·Brain and Behavior·Huihua QiuJincai He
Oct 5, 2019·International Journal of Stroke : Official Journal of the International Stroke Society·José M Ferro, Ana C Santos

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Methods Mentioned

BETA
genotyping
PCR

Software Mentioned

Tagger
SPSS
Haploview

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