ACS 2015:新型多肽探针有助于检测全身血栓部位

2015-08-22 MedSci MedSci原创

本周早些时候在波士顿开展的ACS会议上,马萨诸塞州总医院(MGH)的研究人员展示出他们新研发出的探针,这种新型探针可提高检测患者机体血栓的速度,成功在小鼠身上验证并将于今年年底应用于人体试验。众所周知,机体若出现血栓则非常危险,甚至会致命。所以,越早清除血栓,它能引起机体出现心脏病、中风或其他致命性疾病的风险就越小。若一个人因机体血栓的出现而导致中风,则其再次患中风的风险增加,但是因为血栓位置不同

本周早些时候在波士顿开展的ACS会议上,马萨诸塞州总医院(MGH)的研究人员展示出他们新研发出的探针,这种新型探针可提高检测患者机体血栓的速度,成功在小鼠身上验证并将于今年年底应用于人体试验。


众所周知,机体若出现血栓则非常危险,甚至会致命。所以,越早清除血栓,它能引起机体出现心脏病、中风或其他致命性疾病的风险就越小。若一个人因机体血栓的出现而导致中风,则其再次患中风的风险增加,但是因为血栓位置不同,因此治疗方案也各不相同。为了清除机体的血栓,一些患者需要进行手术,而另一些患者需要进行溶栓治疗。

因此,医生必须精确地找到血栓所在的位置并采取正确的治疗方案。但是现有的医疗条件仅允许他们通过某些扫描检测身体的部分部位。例如,患者往往要进行三种不同类型的扫描:超声检查颈动脉或腿部,磁共振成像(MRI)检查心脏,计算机断层扫描(CT)检查肺部情况。

MGH化学副教授和哈佛医学院放射学教授的Peter Caravan认为,这样无异于盲人摸象。为了检测到血栓的正确位置,病人往往要进行多次扫描,因为若有一种扫描方式,只需扫描一次便可得知病人血栓的位置,这样最是方便省时不过了。Caravan 教授和他的研究团队发现了一种存在于血液中且不溶的多肽探针,且这种多肽与纤维蛋白特异性结合,可以帮助寻找机体的血栓部位。

为了完成实验,研究人员采用了不同的放射性核素、多肽和引入方式。

并将放射性核素(放射性核素显像:将放射性药物引入体内后,以脏器内、外或正常组织与病变之间对放射性药物摄取的差别为基础,利用显像仪器获得脏器或病变的影像)引入多肽,通过PET对动物进行功能性显像。

通过实验,研究人员确定了15个血栓可能存在的部位。经过分析多肽与纤维蛋白结合的程度后,研究人员将其应用于小鼠体内进行检测。但是结果表明,实验室的试管结果与小鼠体内的结果差异明显。

Caravan教授认为,多肽结合纤维蛋白的作用相似,但或许因为小鼠体内的新陈代谢使得某些多肽无法发挥作用。因此还需要更进一步的研究以找到更科学和稳定的方法。

原始出处:

Single scan finds blood clots anywhere in body thanks to new probe.MNT.2015

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (4)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1743910, encodeId=ab6f1e4391090, content=<a href='/topic/show?id=8fcd566e89c' target=_blank style='color:#2F92EE;'>#探针#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56678, encryptionId=8fcd566e89c, topicName=探针)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f76635239744, createdName=lvygwyt2793, createdTime=Wed Mar 02 17:33:00 CST 2016, time=2016-03-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=36052, encodeId=e44c3605289, content=啦啦啦, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150831/IMG55E3D52F183271575.jpg, createdBy=ff291636416, createdName=快乐晴天, createdTime=Tue Aug 25 14:26:00 CST 2015, time=2015-08-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1279101, encodeId=c43512e91017c, content=<a href='/topic/show?id=316d1882bc' target=_blank style='color:#2F92EE;'>#ACS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1882, encryptionId=316d1882bc, topicName=ACS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=102a153, createdName=yaanren, createdTime=Mon Aug 24 02:33:00 CST 2015, time=2015-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1530032, encodeId=e5b315300323f, content=<a href='/topic/show?id=fd6f4340017' target=_blank style='color:#2F92EE;'>#多肽#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43400, encryptionId=fd6f4340017, topicName=多肽)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=cdb812012363, createdName=fusion, createdTime=Mon Aug 24 02:33:00 CST 2015, time=2015-08-24, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=1743910, encodeId=ab6f1e4391090, content=<a href='/topic/show?id=8fcd566e89c' target=_blank style='color:#2F92EE;'>#探针#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56678, encryptionId=8fcd566e89c, topicName=探针)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f76635239744, createdName=lvygwyt2793, createdTime=Wed Mar 02 17:33:00 CST 2016, time=2016-03-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=36052, encodeId=e44c3605289, content=啦啦啦, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150831/IMG55E3D52F183271575.jpg, createdBy=ff291636416, createdName=快乐晴天, createdTime=Tue Aug 25 14:26:00 CST 2015, time=2015-08-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1279101, encodeId=c43512e91017c, content=<a href='/topic/show?id=316d1882bc' target=_blank style='color:#2F92EE;'>#ACS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1882, encryptionId=316d1882bc, topicName=ACS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=102a153, createdName=yaanren, createdTime=Mon Aug 24 02:33:00 CST 2015, time=2015-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1530032, encodeId=e5b315300323f, content=<a href='/topic/show?id=fd6f4340017' target=_blank style='color:#2F92EE;'>#多肽#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43400, encryptionId=fd6f4340017, topicName=多肽)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=cdb812012363, createdName=fusion, createdTime=Mon Aug 24 02:33:00 CST 2015, time=2015-08-24, status=1, ipAttribution=)]
    2015-08-25 快乐晴天

    啦啦啦

    0

  3. [GetPortalCommentsPageByObjectIdResponse(id=1743910, encodeId=ab6f1e4391090, content=<a href='/topic/show?id=8fcd566e89c' target=_blank style='color:#2F92EE;'>#探针#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56678, encryptionId=8fcd566e89c, topicName=探针)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f76635239744, createdName=lvygwyt2793, createdTime=Wed Mar 02 17:33:00 CST 2016, time=2016-03-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=36052, encodeId=e44c3605289, content=啦啦啦, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150831/IMG55E3D52F183271575.jpg, createdBy=ff291636416, createdName=快乐晴天, createdTime=Tue Aug 25 14:26:00 CST 2015, time=2015-08-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1279101, encodeId=c43512e91017c, content=<a href='/topic/show?id=316d1882bc' target=_blank style='color:#2F92EE;'>#ACS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1882, encryptionId=316d1882bc, topicName=ACS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=102a153, createdName=yaanren, createdTime=Mon Aug 24 02:33:00 CST 2015, time=2015-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1530032, encodeId=e5b315300323f, content=<a href='/topic/show?id=fd6f4340017' target=_blank style='color:#2F92EE;'>#多肽#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43400, encryptionId=fd6f4340017, topicName=多肽)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=cdb812012363, createdName=fusion, createdTime=Mon Aug 24 02:33:00 CST 2015, time=2015-08-24, status=1, ipAttribution=)]
    2015-08-24 yaanren
  4. [GetPortalCommentsPageByObjectIdResponse(id=1743910, encodeId=ab6f1e4391090, content=<a href='/topic/show?id=8fcd566e89c' target=_blank style='color:#2F92EE;'>#探针#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=56678, encryptionId=8fcd566e89c, topicName=探针)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=f76635239744, createdName=lvygwyt2793, createdTime=Wed Mar 02 17:33:00 CST 2016, time=2016-03-02, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=36052, encodeId=e44c3605289, content=啦啦啦, beContent=null, objectType=article, channel=null, level=null, likeNumber=105, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150831/IMG55E3D52F183271575.jpg, createdBy=ff291636416, createdName=快乐晴天, createdTime=Tue Aug 25 14:26:00 CST 2015, time=2015-08-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1279101, encodeId=c43512e91017c, content=<a href='/topic/show?id=316d1882bc' target=_blank style='color:#2F92EE;'>#ACS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=1882, encryptionId=316d1882bc, topicName=ACS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=102a153, createdName=yaanren, createdTime=Mon Aug 24 02:33:00 CST 2015, time=2015-08-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1530032, encodeId=e5b315300323f, content=<a href='/topic/show?id=fd6f4340017' target=_blank style='color:#2F92EE;'>#多肽#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=43400, encryptionId=fd6f4340017, topicName=多肽)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=cdb812012363, createdName=fusion, createdTime=Mon Aug 24 02:33:00 CST 2015, time=2015-08-24, status=1, ipAttribution=)]
    2015-08-24 fusion

相关资讯

Nature子刊:让多肽带你深入肿瘤

肿瘤细胞比较容易摄取带有生化小分子的多肽。科学家们正在利用这一点,开发新的癌症治疗方式。 深入肿瘤 长期以来科学家们一直在努力理解和治疗癌症,尽管癌症生存率正在逐渐提升,但人们并没有找到完美的治疗方式。人们面临的挑战是,要让癌症药物到达最需要治疗的区域,并有效进入细胞。血液中的药物往往只能到达肿瘤的部分区域。这是因为肿瘤的内压较高,液体更倾向于流出,导致血液中的药物难以扩散进去。此

鹰嘴豆可提取抗肿瘤蛋白质和多肽

        记者近日从中科院新疆理化技术研究所获悉,该所资源化学研究室的科研人员研制出一种从鹰嘴豆豆瓣中提取天然抗肿瘤活性蛋白质和多肽的方法。相关研究成果日前获国家发明专利授权。   目前,肿瘤已成为仅次于心脑血管疾病的第二大杀手,寻找高效、低毒的抗肿瘤药物成为世界范围内相关研究的热点之一。生物活性肽是一类天然存在于动、植物和微生物等生物体内的多功能化合物。动、植物蛋白质经过蛋白酶解以及

Nat Commun :一种新型多肽C99能遏制阿尔茨海默氏症发病

日本同志社大学的一个研究小组宣布,他们开发出一种新物质,能遏制导致阿尔茨海默氏症(早老性痴呆)的β淀粉样蛋白的生成。这一成果将有助于开发出副作用很小的预防和治疗阿尔茨海默氏症的方法。【原文下载】 同志社大学副教授舟本聪率领的研究小组发现,一种酶与一种称为“C99”的蛋白质结合之后形成β淀粉样蛋白。如果遏制这种酶发挥作用,就有可能对阿尔茨海默氏症进行治疗。但是,由于这种