科学家研制出“大力鼠” 力量是平常两倍
<p><span word="A">A</span> “<span word="mighty">mighty</span> <span word="mouse">mouse</span>” <span word="with">with</span> <span word="double">double</span> <span word="the">the</span> <span word="normal">normal</span> <span word="muscle">muscle</span> <span word="strength">strength</span> <span word="has">has</span> <span word="been">been</span> <span word="created">created</span> <span word="by">by</span> <span word="scientists">scientists</span> <span word="looking">looking</span> <span word="for">for</span> <span word="ways">ways</span> <span word="to">to</span> <span word="treat">treat</span> <span word="age">age</span>-<span word="related">related</span> <span word="diseases">diseases</span>.</p><p><span word="It">It</span> <span word="not">not</span> <span word="only">only</span> <span word="has">has</span> <span word="bigger">bigger</span> <span word="muscles">muscles</span> <span word="but">but</span>, <span word="in">in</span> <span word="tests">tests</span>, <span word="could">could</span> <span word="run">run</span> <span word="for">for</span> <span word="twice">twice</span> <span word="as">as</span> <span word="long">long</span> <span word="on">on</span> <span word="the">the</span> <span word="treadmill">treadmill</span>.</p><p><span word="Swiss">Swiss</span> <span word="scientists">scientists</span> <span word="created">created</span> <span word="the">the</span> “<span word="super">super</span> <span word="strong">strong</span> <span word="marathon">marathon</span> <span word="mice">mice</span>” <span word="by">by</span> <span word="tweaking">tweaking</span> <span word="a">a</span> <span word="gene">gene</span> <span word="and">and</span> <span word="found">found</span> <span word="without">without</span> <span word="it">it</span> <span word="the">the</span> <span word="rodents">rodents</span>’ <span word="muscles">muscles</span> <span word="bulked">bulked</span> <span word="up">up</span> <span word="and">and</span> <span word="they">they</span> <span word="had">had</span> <span word="more">more</span> <span word="energy">energy</span>.</p><p><span word="If">If</span> <span word="the">the</span> <span word="effects">effects</span> <span word="could">could</span> <span word="be">be</span> <span word="replicated">replicated</span> <span word="in">in</span> <span word="humans">humans</span>, <span word="they">they</span> <span word="believe">believe</span> <span word="it">it</span> <span word="could">could</span> <span word="lead">lead</span> <span word="to">to</span> <span word="therapies">therapies</span> <span word="against">against</span> <span word="muscle">muscle</span>-<span word="wasting">wasting</span> <span word="in">in</span> <span word="the">the</span> <span word="elderly">elderly</span> <span word="which">which</span> <span word="can">can</span> <span word="lead">lead</span> <span word="to">to</span> <span word="falls">falls</span> <span word="and">and</span> <span word="broken">broken</span> <span word="bones">bones</span>, <span word="as">as</span> <span word="well">well</span> <span word="as">as</span> <span word="incurable">incurable</span> <span word="diseases">diseases</span> <span word="such">such</span> <span word="as">as</span> <span word="muscular">muscular</span> <span word="dystrophy">dystrophy</span>.</p><p><span word="Researchers">Researchers</span> <span word="at">at</span> <span word="the">the</span> <span word="Ecole">Ecole</span> <span word="Polytechnique">Polytechnique</span> <span word="Federale">Federale</span> <span word="in">in</span> <span word="Lausanne">Lausanne</span> <span word="found">found</span> <span word="that">that</span> <span word="a">a</span> <span word="tiny">tiny</span> <span word="inhibitor">inhibitor</span> – <span word="called">called</span> <span word="NCoR">NCoR</span>1 – <span word="may">may</span> <span word="be">be</span> <span word="responsible">responsible</span> <span word="for">for</span> <span word="how">how</span> <span word="strong">strong</span> <span word="and">and</span> <span word="powerful">powerful</span> <span word="our">our</span> <span word="muscles">muscles</span> <span word="are">are</span>.</p><p><span word="Scientists">Scientists</span> <span word="would">would</span> <span word="then">then</span> <span word="work">work</span> <span word="on">on</span> <span word="developing">developing</span> <span word="a">a</span> <span word="drug">drug</span> <span word="which">which</span> <span word="could">could</span> <span word="produce">produce</span> <span word="a">a</span> <span word="similar">similar</span> <span word="effect">effect</span>.</p><p><span word="By">By</span> <span word="genetically">genetically</span> <span word="modifying">modifying</span> <span word="mice">mice</span> <span word="to">to</span> <span word="stop">stop</span> <span word="it">it</span> <span word="working">working</span>, <span word="they">they</span> <span word="suppressed">suppressed</span> <span word="the">the</span> <span word="enzyme">enzyme</span> <span word="which">which</span> <span word="normally">normally</span> <span word="stops">stops</span> <span word="muscle">muscle</span> <span word="from">from</span> <span word="building">building</span> <span word="up">up</span>.</p><p><span word="Taking">Taking</span> <span word="it">it</span> <span word="out">out</span> <span word="did">did</span> <span word="not">not</span> <span word="appear">appear</span> <span word="to">to</span> <span word="have">have</span> <span word="any">any</span> <span word="adverse">adverse</span> <span word="effects">effects</span>, <span word="according">according</span> <span word="to">to</span> <span word="their">their</span> <span word="study">study</span> <span word="published">published</span> <span word="today">today</span> <span word="in">in</span> <span word="the">the</span> <span word="journal">journal</span> <span word="Cell">Cell</span>.</p><p><span word="The">The</span> “<span word="marathon">marathon</span> <span word="mice">mice</span>” <span word="were">were</span> <span word="able">able</span> <span word="to">to</span> <span word="run">run</span> <span word="faster">faster</span>, <span word="longer">longer</span> <span word="and">and</span> <span word="cover">cover</span> <span word="twice">twice</span> <span word="as">as</span> <span word="much">much</span> <span word="distance">distance</span> <span word="as">as</span> <span word="unmodified">unmodified</span> <span word="mice">mice</span> <span word="and">and</span> <span word="were">were</span> <span word="also">also</span> <span word="better">better</span> <span word="at">at</span> <span word="putting">putting</span> <span word="up">up</span> <span word="with">with</span> <span word="cold">cold</span> <span word="conditions">conditions</span>.</p><p><span word="Similar">Similar</span> <span word="results">results</span> <span word="were">were</span> <span word="found">found</span> <span word="when">when</span> <span word="the">the</span> <span word="same">same</span> <span word="experiment">experiment</span> <span word="was">was</span> <span word="repeated">repeated</span> <span word="on">on</span> <span word="worms">worms</span>. <span word="The">The</span> <span word="scientists">scientists</span> <span word="believe">believe</span> <span word="the">the</span> <span word="modification">modification</span> <span word="could">could</span> <span word="potentially">potentially</span> <span word="be">be</span> <span word="applied">applied</span> <span word="to">to</span> <span word="humans">humans</span>.</p>
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