新奇事件簿 科學家稱毒癮可能由于基因遺傳

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Scientists have discovered that addictions may be hereditary. A team from Britain’s University of Cambridge found that siblings of drug addicts share the same brain abnormalities as their drug-using brothers and sisters. The research team said these abnormal brain structures are linked to poor self-control and drug dependence. The researchers suggest that addiction is in some ways a “disorder of the brain”. This may provide important new ways into helping people with problems of self-control when it comes to addictions. The study sought to find out if drugs changed the “wiring” of the brain or whether the brains of drug addicts were wired differently from birth.

科學家發(fā)現(xiàn)，毒癮可能是遺傳的。來自英國劍橋大學一個研究小組發(fā)現(xiàn)，有毒癮的人與吸毒的兄弟姐妹有著相同的大腦異常。該研究小組表示，這些異常的大腦結構導致自控能力差和藥物依賴。研究人員表示，毒癮從某種程度上講是一種大腦疾病。這種說法為幫助自控能力差的癮君子提供了重要的新方法。這項研究旨在發(fā)現(xiàn)，是毒品改變了大腦的線路，還是有毒癮的人的大腦從出生開始就有所不同。

Lead researcher Dr Karen Ersche told the BBC: “It has long been known that not everyone who takes drugs becomes addicted.” She continued: “It shows that drug addiction is not a choice of lifestyle, it is a disorder of the brain and we need to recognise this. These brothers and sisters who don't have addiction problems, what they can tell us is how they overcome these problems, how they manage self-control in their daily life.” Dr Ersche and her colleagues studied 50 pairs of siblings — one with a history of drug addiction and one with no experience of taking drugs. She compared these with 50 healthy people. She concluded: “We need to find out how these non-addicted siblings were able to resist using drugs.”

首席研究人員Karen Ersche告訴BBC：“長期以來人們都知道，并不是所有吸毒的人都會上癮。”她繼續(xù)說：“這表明，毒癮并不是生活方式的選擇，而是一種大腦疾病，我們需要認識到這一點。這些沒有毒癮的兄弟姐妹，他們告訴我們的是他們?nèi)绾慰朔@些問題，他們在日常生活中如何自我控制。”Ersche和她的同事研究了50對兄弟姐妹——其中一人有毒癮史，另外一人從來沒有吸毒經(jīng)歷。她將這些人與50個健康的人做了對比。她得出結論：“我們需要查明這些沒有毒癮的兄弟姐妹是如何抵制吸食毒品的。”