验血可预测自杀风险 准确率高达90%
<p><span word="A">A</span> <span word="blood">blood</span> <span word="test">test</span> <span word="that">that</span> <span word="can">can</span> <span word="predict">predict</span> <span word="whether">whether</span> <span word="someone">someone</span> <span word="may">may</span> <span word="attempt">attempt</span> <span word="suicide">suicide</span> <span word="has">has</span> <span word="been">been</span> <span word="developed">developed</span> <span word="by">by</span> <span word="scientists">scientists</span> <span word="in">in</span> <span word="a">a</span> <span word="breakthrough">breakthrough</span> <span word="which">which</span> <span word="could">could</span> <span word="prevent">prevent</span> <span word="hundreds">hundreds</span> <span word="of">of</span> <span word="deaths">deaths</span>.</p><p>据英国《每日电讯报》报道，研究人员取得科研突破，通过验血来预测人们是否具有自杀倾向，从而防止众多悲剧发生。</p><p><span word="American">American</span> <span word="researchers">researchers</span> <span word="have">have</span> <span word="found">found</span> <span word="that">that</span> <span word="variations">variations</span> <span word="in">in</span> <span word="a">a</span> <span word="single">single</span> <span word="gene">gene</span> <span word="can">can</span> <span word="be">be</span> <span word="used">used</span> <span word="to">to</span> <span word="predict">predict</span> <span word="if">if</span> <span word="someone">someone</span> <span word="is">is</span> <span word="likely">likely</span> <span word="to">to</span> <span word="take">take</span> <span word="their">their</span> <span word="own">own</span> <span word="life">life</span>.</p><p>美国研究人员发现，通过验血可以检查一种基因是否发生变异，从而预测某人是否企图自杀。</p><p><span word="Researchers">Researchers</span> <span word="at">at</span> <span word="John">John</span> <span word="Hopkins">Hopkins</span> <span word="University">University</span>, <span word="in">in</span> <span word="Baltimore">Baltimore</span>, <span word="Maryland">Maryland</span>, <span word="found">found</span> <span word="that">that</span> <span word="the">the</span> <span word="gene">gene</span> <span word="SKA">SKA</span>2 <span word="stopped">stopped</span> <span word="functioning">functioning</span> <span word="correctly">correctly</span> <span word="in">in</span> <span word="people">people</span> <span word="at">at</span> <span word="risk">risk</span> <span word="of">of</span> <span word="suicide">suicide</span>. <span word="The">The</span> <span word="SKA">SKA</span>2 <span word="gene">gene</span> <span word="is">is</span> <span word="found">found</span> <span word="in">in</span> <span word="the">the</span> <span word="prefrontal">prefrontal</span> <span word="cortex">cortex</span> <span word="of">of</span> <span word="the">the</span> <span word="brain">brain</span>, <span word="and">and</span> <span word="is">is</span> <span word="involved">involved</span> <span word="in">in</span> <span word="preventing">preventing</span> <span word="negative">negative</span> <span word="thoughts">thoughts</span> <span word="and">and</span> <span word="controlling">controlling</span> <span word="impulsive">impulsive</span> <span word="behaviour">behaviour</span>.</p><p>美国约翰•霍普金斯大学研究人员发现，存在自杀风险的人的<span word="SKA">SKA</span>2基因功能异常。<span word="SKA">SKA</span>2基因位于大脑前额皮质，负责控制体内压力荷尔蒙皮质醇的含量，能够防止人们产生消极情绪并控制其冲动行为。</p><p><span word="If">If</span> <span word="there">there</span> <span word="isn">isn</span>'<span word="t">t</span> <span word="enough">enough</span> <span word="SKA">SKA</span>2, <span word="or">or</span> <span word="it">it</span> <span word="is">is</span> <span word="altered">altered</span> <span word="in">in</span> <span word="some">some</span> <span word="way">way</span>, <span word="the">the</span> <span word="body">body</span> <span word="cannot">cannot</span> <span word="control">control</span> <span word="levels">levels</span> <span word="of">of</span> <span word="cortisol">cortisol</span>. <span word="Previous">Previous</span> <span word="research">research</span> <span word="has">has</span> <span word="shown">shown</span> <span word="that">that</span> <span word="people">people</span> <span word="who">who</span> <span word="attempt">attempt</span> <span word="suicide">suicide</span> <span word="or">or</span> <span word="who">who</span> <span word="take">take</span> <span word="their">their</span> <span word="own">own</span> <span word="lives">lives</span> <span word="have">have</span> <span word="large">large</span> <span word="amounts">amounts</span> <span word="of">of</span> <span word="cortisol">cortisol</span> <span word="in">in</span> <span word="their">their</span> <span word="systems">systems</span>.</p><p>若体内<span word="SKA">SKA</span>2基因含量不足，或以某种方式发生变化，人体将无法有效控制皮质醇含量。此前的研究发现，自杀或有自杀倾向的人体内皮质醇含量较高。</p>
页:
[1]