우울장애 환자에서 자살 시도와 트립토판 수산화 효소(Tryptophan Hydroxylase) A218C 유전자 다형성과의 관련성Association Between Suicide Attempts in Patients With Depressive Disorder and Tryptophan Hydroxylase A218C Polymorphism
- Other Titles
- Association Between Suicide Attempts in Patients With Depressive Disorder and Tryptophan Hydroxylase A218C Polymorphism
- Authors
- 심세훈; 황보영; 권영준; 정희연; 이분희; 김용구
- Issue Date
- 2008
- Publisher
- 대한신경정신의학회
- Keywords
- Suicide· Tryptophan hydroxylase (TPH)· Depression· Asociation study.; 자살·트립토판 수산화 효소·우울증·연합연구.; Suicide· Tryptophan hydroxylase (TPH)· Depression· Asociation study.
- Citation
- 신경정신의학, v.47, no.2, pp.142 - 152
- Indexed
- KCI
- Journal Title
- 신경정신의학
- Volume
- 47
- Number
- 2
- Start Page
- 142
- End Page
- 152
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/124822
- ISSN
- 1015-4817
- Abstract
- Objectives:Several lines of evidence suggest the serotonergic dysfunction involved in the biological susceptibility of suicide. Tryptophan hydroxylase (TPH), the rate-limiting enzyme in the biosynthesis of serotonin, plays a vital role in serotonin metabolism. In a case-control study, we investigated whether the TPH gene was a susceptible factor for suicidal behavior in depressive patients.
Methods:The subjects were 218 depressed patients who attempted suicide and visited emergency rooms in multi-medical centers. One hundred thirty hospitalized non-suicidal depressed patients and the 161 normal controls were matched with the suicidal group. Individuals in all 3 groups were evaluated independently by a Structured Clinical Interview for the purpose of establishing a DSM-IV criteria diagnosis (SCID). The severity of depressive symptoms was evaluated using Hamilton depression rating scale (HDRS).
Results:There was no significant difference in genotype distributions and allele frequencies of TPH intron 7 A218C polymorphisms among 3 groups. Furthermore, no significant difference in genotype counts and allele frequencies of the polymorphisms was found among lethal suicidal depressed patients, non-suicidal depressed patients and the normal controls.
Conclusion:This study suggests that the A218C polymorphism of the TPH gene is unlikely to have a major effect on the susceptibility of suicidal behaviors in depressive patients. (J Korean Neuropsychiatr Assoc 2008;47(2):142-152)
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