呼吸雾霾会加快动脉硬化引发中风
<p><span word="Breathing">Breathing</span> <span word="particulate">particulate</span>-<span word="laden">laden</span> (<span word="aka">aka</span> <span word="smoggy">smoggy</span>) <span word="air">air</span> <span word="may">may</span> <span word="be">be</span> <span word="hardening">hardening</span> <span word="your">your</span> <span word="arteries">arteries</span> <span word="faster">faster</span> <span word="than">than</span> <span word="normal">normal</span>, <span word="according">according</span> <span word="to">to</span> <span word="research">research</span> <span word="published">published</span> <span word="today">today</span> <span word="in">in</span> <span word="PLOS">PLOS</span> <span word="Medicine">Medicine</span>. <span word="While">While</span> <span word="everyones">everyones</span>’ <span word="arteries">arteries</span> <span word="harden">harden</span> <span word="gradually">gradually</span> <span word="with">with</span> <span word="age">age</span>, <span word="a">a</span> <span word="team">team</span> <span word="of">of</span> <span word="researchers">researchers</span> <span word="led">led</span> <span word="by">by</span> <span word="epidemiologist">epidemiologist</span> <span word="Sara">Sara</span> <span word="Adar">Adar</span> <span word="of">of</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Michigan">Michigan</span> <span word="School">School</span> <span word="of">of</span> <span word="Public">Public</span> <span word="Health">Health</span> <span word="discovered">discovered</span> <span word="that">that</span> <span word="higher">higher</span> <span word="concentrations">concentrations</span> <span word="of">of</span> <span word="fine">fine</span> <span word="particulate">particulate</span> <span word="air">air</span> <span word="pollution">pollution</span> <span word="were">were</span> <span word="linked">linked</span> <span word="to">to</span> <span word="a">a</span> <span word="faster">faster</span> <span word="thickening">thickening</span> <span word="of">of</span> <span word="the">the</span> <span word="inner">inner</span> <span word="two">two</span> <span word="layers">layers</span> <span word="of">of</span> <span word="the">the</span> <span word="carotid">carotid</span> <span word="artery">artery</span>.</p><p><span word="Because">Because</span> <span word="the">the</span> <span word="carotid">carotid</span> <span word="artery">artery</span> <span word="feeds">feeds</span> <span word="blood">blood</span> <span word="to">to</span> <span word="the">the</span> <span word="neck">neck</span>, <span word="head">head</span>, <span word="and">and</span> <span word="brain">brain</span>, <span word="a">a</span> <span word="narrowing">narrowing</span> <span word="or">or</span> <span word="blockage">blockage</span> <span word="there">there</span> <span word="can">can</span> <span word="trigger">trigger</span> <span word="strokes">strokes</span>. <span word="And">And</span> <span word="general">general</span> <span word="atherosclerosis">atherosclerosis</span>, <span word="or">or</span> <span word="hardening">hardening</span> <span word="of">of</span> <span word="the">the</span> <span word="arteries">arteries</span>, <span word="is">is</span> <span word="a">a</span> <span word="major">major</span> <span word="risk">risk</span> <span word="factor">factor</span> <span word="for">for</span> <span word="cardiovascular">cardiovascular</span> <span word="disease">disease</span>, <span word="heart">heart</span> <span word="attack">attack</span>, <span word="and">and</span> <span word="heart">heart</span> <span word="failure">failure</span>.</p><p><span word="Past">Past</span> <span word="research">research</span> <span word="has">has</span> <span word="demonstrated">demonstrated</span> <span word="that">that</span> <span word="the">the</span> <span word="rates">rates</span> <span word="of">of</span> <span word="stroke">stroke</span> <span word="and">and</span> <span word="heart">heart</span> <span word="attack">attack</span> <span word="are">are</span> <span word="higher">higher</span> <span word="in">in</span> <span word="polluted">polluted</span> <span word="areas">areas</span>, <span word="but">but</span> <span word="experts">experts</span> <span word="haven">haven</span>’<span word="t">t</span> <span word="been">been</span> <span word="able">able</span> <span word="to">to</span> <span word="pinpoint">pinpoint</span> <span word="just">just</span> <span word="how">how</span> <span word="polluted">polluted</span> <span word="air">air</span> <span word="is">is</span> <span word="raising">raising</span> <span word="peoples">peoples</span>’ <span word="risk">risk</span> <span word="for">for</span> <span word="heart">heart</span> <span word="attack">attack</span> <span word="or">or</span> <span word="stroke">stroke</span>. <span word="This">This</span> <span word="time">time</span>, <span word="Adar">Adar</span>’<span word="s">s</span> <span word="team">team</span>, <span word="along">along</span> <span word="with">with</span> <span word="Joel">Joel</span> <span word="Kaufman">Kaufman</span>, <span word="professor">professor</span> <span word="of">of</span> <span word="environmental">environmental</span> <span word="and">and</span> <span word="occupational">occupational</span> <span word="health">health</span> <span word="sciences">sciences</span> <span word="and">and</span> <span word="medicine">medicine</span> <span word="at">at</span> <span word="the">the</span> <span word="University">University</span> <span word="of">of</span> <span word="Washington">Washington</span>, <span word="was">was</span> <span word="able">able</span> <span word="to">to</span> <span word="directly">directly</span> <span word="measure">measure</span> <span word="carotid">carotid</span> <span word="artery">artery</span> <span word="thickness">thickness</span> <span word="and">and</span> <span word="link">link</span> <span word="it">it</span> <span word="to">to</span> <span word="air">air</span> <span word="pollution">pollution</span> <span word="data">data</span>.</p><p><span word="The">The</span> <span word="study">study</span> <span word="involved">involved</span> 5,362 <span word="people">people</span> <span word="between">between</span> <span word="the">the</span> <span word="ages">ages</span> <span word="of">of</span> 45 <span word="and">and</span> 84 <span word="living">living</span> <span word="in">in</span> <span word="six">six</span> <span word="different">different</span> <span word="cities">cities</span> <span word="that">that</span> <span word="are">are</span> <span word="part">part</span> <span word="of">of</span> <span word="the">the</span> <span word="MESA">MESA</span> <span word="AIR">AIR</span> (<span word="Multi">Multi</span>-<span word="Ethnic">Ethnic</span> <span word="Study">Study</span> <span word="of">of</span> <span word="Atherosclerosis">Atherosclerosis</span> <span word="and">and</span> <span word="Air">Air</span> <span word="Pollution">Pollution</span>) <span word="research">research</span> <span word="project">project</span>, <span word="led">led</span> <span word="by">by</span> <span word="Joel">Joel</span> <span word="Kaufman">Kaufman</span>. <span word="Each">Each</span> <span word="participant">participant</span> <span word="underwent">underwent</span> <span word="two">two</span> <span word="carotid">carotid</span> <span word="artery">artery</span> <span word="ultrasounds">ultrasounds</span> <span word="three">three</span> <span word="years">years</span> <span word="apart">apart</span>. <span word="These">These</span> <span word="measurements">measurements</span> <span word="were">were</span> <span word="then">then</span> <span word="correlated">correlated</span> <span word="with">with</span> <span word="data">data</span> <span word="on">on</span> <span word="fine">fine</span> <span word="particulate">particulate</span> <span word="air">air</span> <span word="pollution">pollution</span>.</p>
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