VOAÂýËÙÓ¢Óï·­Òë×ÖÄ»½²½âÃÀý»ù

SincethestartofthedeadlyAIDSepidemicinthes,scientistshavebeenworkingtowardsacure.20ÊÀ¼Í80Äê´úÒÔÀ´£¬°¬×̲¡¿ªÊ¼Á÷ÐУ¬¿ÆÑ§¼ÒÃÇÒ»Ö±¶¼ÔÚŬÁ¦Ñ°ÕÒÖÎÁư취¡£

Now,theymaybeclosetofindingone.ÏÖÔÚËûÃÇ·¢ÏÖÁËÒ»ÖÖ¿ÉÄÜÖÎÓúÕâÒ»²»ÖÎÖ®Ö¢µÄÐÂÁÆ·¨¡£

ResearchershavedevelopedamethodtocuttheviralDNAfromapersonsinfectedcells.Ñо¿ÈËÔ±ÒѾ­ÕÒµ½ÁËÒ»ÖÖ´Ó¸ÐȾϸ°ûÖÐÌÞ³ý²¡¶¾DNAµÄ°ì·¨£¬

ItiscalledCRISPR/Cas9anditmeansthepersoncouldbevirus-free.ר¼Ò³ÆÖ®ÎªCRISPR/Cas9»ùÒò¼ô¼­¼¼Êõ£¬¸Ã¼¼ÊõÒâζ×Åϸ°û²»ÔÙÊܲ¡¶¾¸ÐȾ¡£

DNAisasubstancethatcarriesgeneticinformationinthecellsofanimalsandplants.DNAÊÇÖ¸¶¯Ö²Îïϸ°ûÖÐЯ´øÒÅ´«ÐÅÏ¢µÄÎïÖÊ¡£

Thisgene-editingtookplaceinascientificlab,buthasnotbeentestedonhumansyet.Ŀǰ£¬ÕâÏî»ùÒò¼ô¼­¼¼ÊõÖ»ÔÚ¿ÆÑ§ÊµÑéÊÒÀï½øÐйý£¬ÉÐδ½øÐÐÁÙ´²²âÊÔ¡£

Itsabigstep,saidKamelKhalili,Ph.D.¿¨ÂõÀÕ¡¤¹þÀûÀû(KamelKhalili)²©Ê¿±íʾ£¬¡°ÕâÊÇ·ÉÔ¾ÐÔµÄÒ»²½¡£¡±

HeisleadresearcherandchairattheDepartmentofNeuroscienceatTempleUniversityinPhiladelphia,Pennsylvania.ËûÊDZöϦ·¨ÄáÑÇÖݷѳÇ̹ÆÕ¶û´óѧÉñ¾­¿ÆÑ§ÏµµÄÊ×ϯÑо¿Ô±¼æÏµÖ÷ÈΡ£

Heandhisteammadethediscovery.´ËÏîÑо¿³É¹ûÊÇËûÓëÍŶӹ²Í¬·¢Ïֵġ£

ButmoretestshavetobedonetoknowifitwillbeacureforthemillionsofpatientsinfectedwiththeHIVvirus,whichcausesAIDS.ËüÄÜ·ñÖÎÁÆÊý°ÙÍò°¬×̲¡»¼Õߣ¬ÈÔÐè½øÐдóÁ¿²âÊÔ¡£

AntiretroviraldrugshavebeendoingagoodjobofkeepingtheAIDSvirusfromreproducing.¿¹Äæ×ªÂ¼Ò©ÎïÔÚ·ÀÖ¹°¬×̲¡¶¾ÔÙÉú·½ÃæÐ§¹ûÍ»³ö£¬

SuchagoodjobthatlevelsofHIVarejustaboutundetectableininfectedpeoplewhotakethemedicine.°¬×̲¡¸ÐȾÕß·þÓÃÕâÖÖÒ©Îïºó£¬¼¸ºõ¼ì²â²»µ½ÆäÌåÄڵݬ×̲¡¶¾¡£

Butevenwiththedrugs,thevirusstaysinthebodysT-cells,whichareT-lymphocytes.È»¶ø¼´Ê¹·þÓÃÁËÕâЩҩÎ²¡¶¾ÈÔ»áÍ£ÁôÔÚÈËÌåµÄTϸ°ûÄÚ£¬¼´TÁܰÍϸ°ûÖ®ÖС£

AIDSdamagestheimmunesystem,hurtingthebodysabilitytofightoffdisease.°¬×̲¡»áÆÆ»µÈËÌåÃâÒßϵͳ£¬½µµÍÈËÌåµÖ¿¹¼²²¡µÄÄÜÁ¦¡£

SothedrugsarekindofaBand-Aidsolution,Khaliliexplained.¹þÀûÀû²©Ê¿½âÊÍ˵£¬ÕâЩҩÎïÖ»ÄÜ˵ÊÇ¡°È¨ÒËÖ®¼Æ¡±¡£

Theykeepthevirusfromgrowing.ËüÃÇ¿ÉÒÔ·ÀÖ¹²¡¶¾ÖØÉú£¬

Buttheydonoteliminatethememoryofthevirusfromthecells.µ«ÊÇËüÃDz»ÄÜ´Óϸ°û¼ÇÒäÖг¹µ×Çå³ýÕâÖÖ²¡¶¾¡£

And,themomentantiretroviraldrugsarestopped,theHIV







































北京治疗白癜风的最佳医�
白癜风应该如何治�


×ªÔØÇë×¢Ã÷µØÖ·:http://www.goodkuaiji.net/azbzz/10243.html


  • ÉÏһƪÎÄÕ£º
  • ÏÂһƪÎÄÕ£º
  • ¹«Ë¾¼ò½é ¹ã¸æºÏ×÷ ·¢²¼ÓÅÊÆ ·þÎñÌõ¿î Òþ˽±£»¤ ÍøÕ¾µØÍ¼ °æÈ¨ÉùÃ÷