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BMC Psychiatry
Published in: BMC Psychiatry 1/2019

Open Access 01-12-2019 | Schizophrenia | Research article

Association between polymorphism of the NEDD4 gene and cognitive dysfunction of schizophrenia patients in Chinese Han population

Authors: Chao Han, Kaiyan Cui, Xiaojiao Bi, Lina Wang, Mengmeng Sun, Limin Yang, Lanfen Liu

Published in: BMC Psychiatry | Issue 1/2019

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Abstract

Background

Schizophrenia is a complex psychiatric disorder with unknown etiology. A number of recent studies have shown that the polymorphism of the neural precursor cell expressed developmentally down-regulated 4 (NEDD4) gene is associated with a variety of neuropsychiatric disorders, such as schizophrenia, and may also be associated with cognitive dysfunction in these diseases.

Methods

A case-control study was carried out, the alleles and genotypes distributions of five loci (rs3088077, rs2303579, rs7162435, rs11550869, rs62043855) of the NEDD4 gene from 296 schizophrenia patients and 320 healthy controls were detected by using Taqman single-nucleotide polymorphism (SNP) genotyping technology. The clinical data of case and control group members were collected by self-made questionnaire and the psychotic symptoms of case group members were assessed by the Positive and Negative Syndrome Scale (PANSS). The Matrics Consensus Cognitive Battery (MCCB) was used to test the cognitive function of case group members.

Results

The alleles and genotypes frequency of two loci (rs3088077, rs2303579) between case and control group showed significant differences (P <  0.05). There was no significant difference in MCCB scores of patients with different genotypes at rs3088077, rs11550869 and rs7162435 loci in case group. The study of rs2303579 locus showed that, patients’ scores with CT genotype were significantly lower than those with CC and TT genotypes (P <  0.05) in the test of Wechsler Memory Scale-Third Edition (WMS-III): Spatial Span, the scores of patients with TT genotype were significantly higher than those with CT genotype (P < 0.05) in the test of Hopkins Verbal Learning Test-Revised (HVLT-R). The study of rs62043855 locus showed that patients with TG genotype had significantly lower scores than those with GG genotype (P < 0.05) in the test of Neuropsychological Assessment Battery (NAB): Mazes.

Conclusions

Our study showed that in schizophrenia patients of Chinese Han population, the polymorphisms of rs3088077 and rs2303579 loci were related to the pathogenesis of schizophrenia, while the polymorphisms of rs2303579 and rs62043855 loci were associated with cognitive dysfunction.
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Metadata
Title
Association between polymorphism of the NEDD4 gene and cognitive dysfunction of schizophrenia patients in Chinese Han population
Authors
Chao Han
Kaiyan Cui
Xiaojiao Bi
Lina Wang
Mengmeng Sun
Limin Yang
Lanfen Liu
Publication date
01-12-2019
Publisher
BioMed Central
Keyword
Schizophrenia
Published in
BMC Psychiatry / Issue 1/2019
Electronic ISSN: 1471-244X
DOI
https://doi.org/10.1186/s12888-019-2386-y

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