研究：个子矮小皆因基因数量不足
<p><span word="A">A</span> <span word="shortage">shortage</span> <span word="of">of</span> <span word="genes">genes</span> <span word="could">could</span> <span word="be">be</span> <span word="to">to</span> <span word="blame">blame</span> <span word="for">for</span> <span word="the">the</span> <span word="lack">lack</span> <span word="of">of</span> <span word="height">height</span> <span word="in">in</span> <span word="short">short</span> <span word="people">people</span>, <span word="researchers">researchers</span> <span word="have">have</span> <span word="found">found</span>.</p><p><span word="Two">Two</span> <span word="studies">studies</span> <span word="involving">involving</span> 12,000 <span word="people">people</span> <span word="has">has</span> <span word="been">been</span> <span word="carried">carried</span> <span word="out">out</span> <span word="in">in</span> <span word="America">America</span> <span word="and">and</span> <span word="found">found</span> <span word="a">a</span> <span word="link">link</span> <span word="between">between</span> <span word="the">the</span> <span word="amount">amount</span> <span word="of">of</span> <span word="missing">missing</span> <span word="genetic">genetic</span> <span word="material">material</span> <span word="and">and</span> <span word="a">a</span> <span word="decrease">decrease</span> <span word="in">in</span> <span word="height">height</span>.</p><p><span word="Height">Height</span> <span word="is">is</span> <span word="mostly">mostly</span> <span word="passed">passed</span> <span word="down">down</span> <span word="through">through</span> <span word="families">families</span> <span word="but">but</span> <span word="scientists">scientists</span> <span word="say">say</span> <span word="this">this</span> <span word="does">does</span> <span word="not">not</span> <span word="explain">explain</span> <span word="everything">everything</span> <span word="when">when</span> <span word="comparing">comparing</span> <span word="the">the</span> <span word="variations">variations</span> <span word="between">between</span> <span word="people">people</span>.</p><p><span word="Dr">Dr</span> <span word="Joel">Joel</span> <span word="Hirschhorn">Hirschhorn</span>, <span word="who">who</span> <span word="led">led</span> <span word="a">a</span> <span word="study">study</span> <span word="published">published</span> <span word="in">in</span> <span word="the">the</span> <span word="American">American</span> <span word="Journal">Journal</span> <span word="of">of</span> <span word="Human">Human</span> <span word="Genetics">Genetics</span>, <span word="said">said</span>: "<span word="Despite">Despite</span> <span word="tremendous">tremendous</span> <span word="recent">recent</span> <span word="progress">progress</span> <span word="in">in</span> <span word="finding">finding</span> <span word="common">common</span> <span word="genetic">genetic</span> <span word="variants">variants</span> <span word="associated">associated</span> <span word="with">with</span> <span word="height">height</span>, <span word="thus">thus</span> <span word="far">far</span> <span word="these">these</span> <span word="variants">variants</span> <span word="only">only</span> <span word="explain">explain</span> <span word="about">about</span> 10 <span word="percent">percent</span> <span word="of">of</span> <span word="the">the</span> <span word="variation">variation</span> <span word="in">in</span> <span word="adult">adult</span> <span word="height">height</span>."</p>
页:
[1]