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台灣區偶發性帕金森氏病與多巴胺運輸器基因多形性之關聯性

No Association Between the Dopamine Transporter Gene Polymorphism and Sporadic Parkinson's Disease among Chinese in Taiwan

摘要


目的:多巴胺運輸器的機能異常可能會導致帕金森氏病,因為多巴胺運輸器基因的多形式已被報導與帕金森氏病有所關聯。這裡我們研究台灣地區的人其多巴胺運輸器基因的串聯式多形性是否與偶發性帕金氏病相關。 方法:本研究自35位偶發性帕金森氏病患者和95位與此症無關的對照者身上採集血液樣本。將位於多巴胺運輸器基因3'端未轉譯區段的40-鹼基多形性重複序列予以純化、經聚合酶鏈鎖反應放大。聚合酶鏈鎖反應的產物以3%瓊脂電泳分離並在紫外光下觀察結果。 結果:研究結果指出在帕金森氏病患者和對照者之間的對偶基因頻率並沒有明顯的差異性。 結論:此項發現認為多巴胺運輸器的多形性可能不是台灣地區偶發性帕金森氏病主要的基因決策者。

並列摘要


Objectives: The dopamine transporter (DAT) gene polymorphism has been reported to be associated with Parkinson's disease. We herein investigated whether a tandem polymorphism in the dopamine transporter gene is associated with sporadic PD among Chinese in Taiwan. Methods: Blood samples were collected from 35 sporadic PD patients and 95 unrelated-control subjects. A 40-base polymorphic repeat sequence located in the 3'-untranslated region of the DAT gene was purified and amplified by polymerase chain reaction (PCR). The PCR products were electrophoresed on 3% agarose gel and visualized under UV light. Results: There was no significant difference in the allelic frequency of the DAT gene polymorphism between sporadic PD patients and unrelated-control subjects. Conclusions: This finding suggests that the DAT polymorphism may not be a major genetic determinant of sporadic PD among Chinese in Taiwan.

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