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Dopamine Beta-Hydroxylase 유전자 내 4개의 단일염기다형성과 한국 정신분열병 환자 간 연관성 연구

An Association Study between Four Polymorphisms in the Dopamine Beta-Hydroxylase Gene and Schizophrenia in Korean Population

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참고문헌

주제분류정신과학

초록

목 적:Dopamine beta-hydroxylase(DBH) 유전자는 정신병적 증상과 관련하여 정신분열병의 후보유전자 중 의 하나이다. 본 연구는 DBH 유전자 내 새로운 단일염기다형성의 유전자형을 확인하고 정신분열병과의 유전적 연 관성을 알아보고자 하였다. 연구대상 및 방법 :DSM-Ⅳ에 의해 정신분열병으로 진단된 입원환자 89명과 정신질환의 과거력과 가족력이 없는 대조군 109명을 대상으로 하였다. DBH 유전자의 네 번째 엑손 부위를 다중효소중합연쇄반응(Polymerase Chain Reaction, PCR)으로 증폭하여 DNA sequencing 기법으로 유전자형을 확인하고 연관성을 알아보기 위한 통계 분 석을 시행하였다. 결 과:DBH 유전자 내 4개의 단일염기다형성(DBH5818G/A, DBH5990G/A, DBH6153C/T, DBH6259A/G) 을 확인하였다. 이 4개의 단일염기다형성 모두에서 정신분열병 환자군과 정상 대조군 간 유전자형 분포와 대립유 전자 빈도 및 일배체형 빈도에서의 유의한 차이는 없었다. DBH와의 관련성이 보고된 양성 정신병적 증상이 두드 러지는 편집형 정신분열병 환자군과 정상 대조군 간 일배체형 빈도에서도 유의한 차이는 보이지 않았다. 결 론:DBH5818G/A, DBH5990G/A, DBH6153C/T, 그리고 DBH6259A/G 다형성은 한국 정신분열병 환자군 과 유전적 관련성이 없을 것으로 추정된다.

Abstract

The present result provide no direct evidence of association between four SNPs in the DBH gene and Korean patients with schizophrenia. The authors suggest that four SNPs around 4th exon in the DBH gene have no association with schizophrenia in Korean population. Concerning the possibility of association with schizophrenia, other polymorphisms in the DBH gene should be investigated and further studies in larger and clinically well defined samples of Schizophrenia should be required.

참고문헌 (32)

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