Doctors Unveil Potential New Tool to Fight Brain Cancer
<p><span word="The">The</span> <span word="blood">blood</span>-<span word="brain">brain</span> <span word="barrier">barrier</span> <span word="is">is</span> <span word="a">a</span> <span word="natural">natural</span> <span word="defense">defense</span> <span word="system">system</span> <span word="that">that</span> <span word="prevents">prevents</span> <span word="harmful">harmful</span> <span word="substances">substances</span> <span word="in">in</span> <span word="the">the</span> <span word="blood">blood</span> <span word="from">from</span> <span word="entering">entering</span> <span word="the">the</span> <span word="brain">brain</span>. <span word="Doctors">Doctors</span> <span word="may">may</span> <span word="have">have</span> <span word="found">found</span> <span word="a">a</span> <span word="way">way</span> <span word="to">to</span> <span word="get">get</span> <span word="past">past</span> <span word="the">the</span> <span word="barrier">barrier</span> <span word="to">to</span> <span word="treat">treat</span> <span word="cancer">cancer</span> <span word="patients">patients</span>.</p><p><span word="Neurosurgeons">Neurosurgeons</span> <span word="have">have</span> <span word="been">been</span> <span word="using">using</span> <span word="lasers">lasers</span> <span word="to">to</span> <span word="treat">treat</span> <span word="brain">brain</span> <span word="cancer">cancer</span> <span word="since">since</span> 2009, <span word="but">but</span> <span word="now">now</span> <span word="they">they</span> <span word="say">say</span> <span word="the">the</span> <span word="technique">technique</span> <span word="may">may</span> <span word="also">also</span> <span word="allow">allow</span> <span word="them">them</span> <span word="to">to</span> <span word="deliver">deliver</span> <span word="chemotherapy">chemotherapy</span> <span word="drugs">drugs</span> <span word="directly">directly</span> <span word="into">into</span> <span word="the">the</span> <span word="brain">brain</span>.</p><p><span word="The">The</span> <span word="key">key</span> <span word="is">is</span> <span word="getting">getting</span> <span word="past">past</span> <span word="the">the</span> <span word="protective">protective</span> <span word="blood">blood</span>-<span word="brain">brain</span> <span word="barrier">barrier</span>, <span word="which">which</span> <span word="does">does</span> <span word="its">its</span> <span word="job">job</span> <span word="so">so</span> <span word="well">well</span> <span word="it">it</span> <span word="also">also</span> <span word="keeps">keeps</span> <span word="out">out</span> <span word="potentially">potentially</span> <span word="lifesaving">lifesaving</span> <span word="chemotherapy">chemotherapy</span> <span word="drugs">drugs</span>.</p><p><span word="Kathy">Kathy</span> <span word="Smith">Smith</span> <span word="has">has</span> <span word="ovarian">ovarian</span> <span word="cancer">cancer</span> <span word="that">that</span> <span word="spread">spread</span> <span word="to">to</span> <span word="her">her</span> <span word="brain">brain</span>, <span word="a">a</span> <span word="type">type</span> <span word="of">of</span> <span word="brain">brain</span> <span word="cancer">cancer</span> <span word="called">called</span> <span word="glioblastoma">glioblastoma</span>.</p><p>“<span word="There">There</span> <span word="were">were</span> <span word="I">I</span> <span word="believe">believe</span> <span word="three">three</span> <span word="tumors">tumors</span> <span word="at">at</span> <span word="that">that</span> <span word="time">time</span> <span word="and">and</span> <span word="I">I</span> <span word="was">was</span> <span word="not">not</span> <span word="at">at</span> <span word="all">all</span> <span word="happy">happy</span> <span word="about">about</span> <span word="those">those</span> <span word="critters">critters</span>,” <span word="she">she</span> <span word="said">said</span>.</p><p><span word="Smith">Smith</span> <span word="was">was</span> <span word="treated">treated</span> <span word="with">with</span> <span word="laser">laser</span> <span word="therapy">therapy</span>. <span word="Doctors">Doctors</span> <span word="insert">insert</span> <span word="a">a</span> <span word="tiny">tiny</span> <span word="probe">probe</span> <span word="into">into</span> <span word="the">the</span> <span word="brain">brain</span>, <span word="directly">directly</span> <span word="to">to</span> <span word="the">the</span> <span word="cancer">cancer</span> <span word="where">where</span> <span word="it">it</span> <span word="burns">burns</span> <span word="up">up</span> <span word="the">the</span> <span word="tumor">tumor</span> <span word="from">from</span> <span word="the">the</span> <span word="inside">inside</span> <span word="out">out</span>.</p><p><span word="According">According</span> <span word="to">to</span> <span word="Washington">Washington</span> <span word="University">University</span> <span word="Neurosurgery">Neurosurgery</span> <span word="Professor">Professor</span> <span word="Eric">Eric</span> <span word="Leuthardt">Leuthardt</span>, <span word="during">during</span> <span word="the">the</span> <span word="procedure">procedure</span> <span word="it">it</span> <span word="was">was</span> <span word="discovered">discovered</span> <span word="the">the</span> <span word="therapy">therapy</span> <span word="had">had</span> <span word="an">an</span> <span word="unintended">unintended</span> <span word="effect">effect</span> <span word="on">on</span> <span word="the">the</span> <span word="blood">blood</span>-<span word="brain">brain</span> <span word="barrier">barrier</span>.</p><p>“<span word="We">We</span> <span word="were">were</span> <span word="able">able</span> <span word="to">to</span> <span word="show">show</span> <span word="that">that</span> <span word="this">this</span> <span word="blood">blood</span>-<span word="brain">brain</span> <span word="barrier">barrier</span> <span word="is">is</span> <span word="broken">broken</span> <span word="down">down</span> <span word="for">for</span> <span word="about">about</span> <span word="four">four</span> <span word="weeks">weeks</span> <span word="after">after</span> <span word="you">you</span> <span word="do">do</span> <span word="this">this</span> <span word="laser">laser</span> <span word="therapy">therapy</span>," <span word="he">he</span> <span word="said">said</span>. "<span word="So">So</span> <span word="not">not</span> <span word="only">only</span> <span word="are">are</span> <span word="you">you</span> <span word="killing">killing</span> <span word="the">the</span> <span word="tumor">tumor</span>, <span word="you">you</span> <span word="are">are</span> <span word="actually">actually</span> <span word="opening">opening</span> <span word="up">up</span> <span word="a">a</span> <span word="window">window</span> <span word="of">of</span> <span word="opportunity">opportunity</span> <span word="to">to</span> <span word="deliver">deliver</span> <span word="various">various</span> <span word="drugs">drugs</span> <span word="and">and</span> <span word="chemicals">chemicals</span> <span word="and">and</span> <span word="therapies">therapies</span> <span word="that">that</span> <span word="could">could</span> <span word="otherwise">otherwise</span> <span word="not">not</span> <span word="get">get</span> <span word="in">in</span> <span word="there">there</span>.”</p>
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