研究:喝咖啡对结肠癌有抑制作用
<p><span word="Colon">Colon</span> <span word="cancer">cancer</span> <span word="patients">patients</span> <span word="who">who</span> <span word="were">were</span> <span word="heavy">heavy</span> <span word="coffee">coffee</span> <span word="drinkers">drinkers</span> <span word="had">had</span> <span word="a">a</span> <span word="far">far</span> <span word="lower">lower</span> <span word="risk">risk</span> <span word="of">of</span> <span word="dying">dying</span> <span word="or">or</span> <span word="having">having</span> <span word="their">their</span> <span word="cancer">cancer</span> <span word="return">return</span> <span word="than">than</span> <span word="those">those</span> <span word="who">who</span> <span word="did">did</span> <span word="not">not</span> <span word="drink">drink</span> <span word="coffee">coffee</span>, <span word="with">with</span> <span word="significant">significant</span> <span word="benefits">benefits</span> <span word="starting">starting</span> <span word="at">at</span> <span word="two">two</span> <span word="to">to</span> <span word="three">three</span> <span word="cups">cups</span> <span word="a">a</span> <span word="day">day</span>, <span word="a">a</span> <span word="new">new</span> <span word="study">study</span> <span word="found">found</span>. <span word="Patients">Patients</span> <span word="who">who</span> <span word="drank">drank</span> <span word="four">four</span> <span word="cups">cups</span> <span word="of">of</span> <span word="caffeinated">caffeinated</span> <span word="coffee">coffee</span> <span word="or">or</span> <span word="more">more</span> <span word="a">a</span> <span word="day">day</span> <span word="had">had</span> <span word="half">half</span> <span word="the">the</span> <span word="rate">rate</span> <span word="of">of</span> <span word="recurrence">recurrence</span> <span word="or">or</span> <span word="death">death</span> <span word="than">than</span> <span word="noncoffee">noncoffee</span> <span word="drinkers">drinkers</span>.</p><p>一项新研究发现，与不喝咖啡的结肠癌患者相比，大量饮用咖啡的患者癌症复发或死亡的风险较低，而且从每天饮用咖啡两到三杯开始这种效益就十分显著。每天至少饮用四杯含咖啡因咖啡的患者的癌症复发或死亡率只有不喝咖啡者的一半。</p><p><span word="But">But</span>, <span word="the">the</span> <span word="researchers">researchers</span> <span word="caution">caution</span>, <span word="cancer">cancer</span> <span word="patients">patients</span> <span word="should">should</span> <span word="not">not</span> <span word="start">start</span> <span word="ordering">ordering</span> <span word="extra">extra</span> <span word="tall">tall</span> <span word="coffees">coffees</span>. <span word="The">The</span> <span word="study">study</span>, <span word="the">the</span> <span word="first">first</span> <span word="to">to</span> <span word="report">report</span> <span word="such">such</span> <span word="findings">findings</span>, <span word="does">does</span> <span word="not">not</span> <span word="prove">prove</span> <span word="a">a</span> <span word="cause">cause</span>-<span word="and">and</span>-<span word="effect">effect</span> <span word="relationship">relationship</span> <span word="between">between</span> <span word="coffee">coffee</span> <span word="drinking">drinking</span> <span word="and">and</span> <span word="a">a</span> <span word="lower">lower</span> <span word="risk">risk</span> <span word="of">of</span> <span word="colon">colon</span> <span word="cancer">cancer</span> <span word="recurrence">recurrence</span>. <span word="As">As</span> <span word="other">other</span> <span word="experts">experts</span> <span word="note">note</span>, <span word="there">there</span> <span word="may">may</span> <span word="be">be</span> <span word="differences">differences</span> <span word="between">between</span> <span word="heavy">heavy</span> <span word="coffee">coffee</span> <span word="drinkers">drinkers</span> <span word="and">and</span> <span word="abstainers">abstainers</span> <span word="that">that</span> <span word="the">the</span> <span word="research">research</span> <span word="was">was</span> <span word="not">not</span> <span word="able">able</span> <span word="to">to</span> <span word="account">account</span> <span word="for">for</span>.</p><p>不过，研究人员警告说，癌症患者不应因此就开始点超大杯的咖啡。该研究是对此类发现的首次报道，但未能证明饮用咖啡与较低的结肠癌复发风险之间的因果关系。正如其他专家所指出的那样，在大量饮用咖啡者与不喝咖啡者之间可能存在着该研究没有考虑到的差异。</p><p><span word="In">In</span> <span word="recent">recent</span> <span word="years">years</span>, <span word="many">many</span> <span word="studies">studies</span> <span word="have">have</span> <span word="pointed">pointed</span> <span word="to">to</span> <span word="coffee">coffee</span>'<span word="s">s</span> <span word="health">health</span> <span word="benefits">benefits</span>, <span word="suggesting">suggesting</span> <span word="coffee">coffee</span> <span word="may">may</span> <span word="protect">protect</span> <span word="against">against</span> <span word="Type">Type</span> 2 <span word="diabetes">diabetes</span>, <span word="reduce">reduce</span> <span word="overall">overall</span> <span word="deaths">deaths</span> <span word="and">and</span> <span word="perhaps">perhaps</span> <span word="even">even</span> <span word="help">help</span> <span word="protect">protect</span> <span word="against">against</span> <span word="dementia">dementia</span>. <span word="Other">Other</span> <span word="studies">studies</span> <span word="have">have</span> <span word="suggested">suggested</span> <span word="coffee">coffee</span> <span word="may">may</span> <span word="reduce">reduce</span> <span word="the">the</span> <span word="risks">risks</span> <span word="of">of</span> <span word="certain">certain</span> <span word="cancers">cancers</span>, <span word="including">including</span> <span word="colon">colon</span> <span word="cancer">cancer</span>. <span word="The">The</span> <span word="benefits">benefits</span> <span word="are">are</span> <span word="generally">generally</span> <span word="attributed">attributed</span> <span word="to">to</span> <span word="coffee">coffee</span>'<span word="s">s</span> <span word="antioxidant">antioxidant</span> <span word="and">and</span> <span word="anti">anti</span>-<span word="inflammatory">inflammatory</span> <span word="properties">properties</span>.</p>
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