The EcoRV genetic polymorphism of human monoamine oxidase type A is not associated with Parkinson's disease and does not modify the effect of smoking on Parkinson's disease

被引:10
作者
Costa-Mallen, P
Checkoway, H
Fishel, M
Cohen, AW
Smith-Weller, T
Franklin, GM
Swanson, PD
Costa, LG
机构
[1] Univ Washington, Sch Publ Hlth & Community Med, Dept Environm Hlth, Seattle, WA 98105 USA
[2] Univ Washington, Sch Publ Hlth & Community Med, Dept Epidemiol, Seattle, WA 98195 USA
[3] Univ Washington, Med Ctr, Dept Neurol, Seattle, WA 98195 USA
[4] Univ Roma La Sapienza, Dept Physiol & Pharmacol, Rome, Italy
关键词
polymorphism; monoamine oxidase A gene; Parkinson's disease; cigarette smoke; association; interaction;
D O I
10.1016/S0304-3940(99)00890-3
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
We previously observed an association with Parkinson's (PD), and modification of the effect of smoking on PD, by a polymorphism of the monoamine oxidase B (MAO-B) gene. The A form of monoamine oxidase (MAO-A) shares with MAO-B many characteristics that could be relevant to PD, especially proneuroxicant bioactivation and dopamine metabolism. MAO-A is also inhibited by tobacco smoke, which bears an apparent protective effect on PD. We investigated the possibility that MAO-A genetic variants may also be involved in predisposition to PD and in modification of the effect of smoking. Three-hundred and seventy-one subjects - 145 idiopathic PD cases and 226 age/gender-matched controls - were genotyped for the EcoRV polymorphism of MAO-A gene which has been related to increased enzyme activity. MAO-A EcoRV polymorphism was neither significantly associated with PD nor did it modify the inverse relationship with smoking. These results suggest that the EcoRV polymorphism of MAO-A is not an important biomarker of PD risk. Published by Elsevier Science Ireland Ltd.
引用
收藏
页码:33 / 36
页数:4
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