Stroke:干细胞疗法可有效治疗中风

2016-06-05 佚名 生物谷bioon.com

  (图片摘自www.sciencealert.com)   患有中风的患者在经过向大脑中注射干细胞治疗,能够明显地提高其讲话能力、身体强度以及行动力。其中一些患者甚至能够重新行走。   这一临床试验的成功意味着我们低估了大脑自愈的能力,也许有一天这种疗法能够使大脑重新恢复功能。   "一位71岁的老年女性在治疗开始前仅仅能够活动左手大拇指

 
(图片摘自www.sciencealert.com
 
患有中风的患者在经过向大脑中注射干细胞治疗,能够明显地提高其讲话能力、身体强度以及行动力。其中一些患者甚至能够重新行走。
 
这一临床试验的成功意味着我们低估了大脑自愈的能力,也许有一天这种疗法能够使大脑重新恢复功能。
 
"一位71岁的老年女性在治疗开始前仅仅能够活动左手大拇指",该研究的首席研究员,来自斯坦福大学的神经科医生Gary Steinberg说道:"如今她能够行走以及将手举过头顶"。
 
这是第二次通过向脑部注射干细胞使得大脑恢复功能的临床试验。去年英国的一项相似的临床试验也获得了成功。
 
这次试验是由一家叫做"SanBio"的公司发起的。虽然该团队仅仅对18名患者进行了治疗,但这些患者经过治疗后病情全部发生了明显的改善,其中有7名患者改善幅度显著。
 
参与该试验的患者患中风时间从6个月到3年不等。在此之前,他们的病情一直处于停滞状态。
 
在治疗前后,研究者们分别检测了他们的活动能力,评分从1到100。他们发现,所有患者在经历了治疗后活动能力平均提高了11.4%。这意味着该疗法能够有效提高患者的生活质量。
 
那么它是怎么工作的呢?该疗法是通过从头部打洞的方式,向大脑负责运动的区域注射干细胞,这一区域在中风患者中受到了损伤。
 
对于具体的治疗机制,研究者们并不太清楚,但随着治疗的不断深入他们能够慢慢找到其中的线索。看上去这一技术似乎是能够将大脑恢复年轻。
 
注入的这部分干细胞叫做间充质干细胞,是采集于两名健康人的骨髓中。这些细胞经过改造,能够持续性表达Notch1蛋白,该蛋白主要负责婴儿期大脑的发育。每名患者在这一试验中分别被注入250万、500万以及1000万的细胞。
 
在大鼠试验中,作者发现这部分注入的细胞在体内的维持的时间不会超过一个月,但在此期间,这些细胞能够分泌生长因子,促进脑细胞的新连结形成以及组织的再生。
 
"我们之前认为患者的脑回路已经处于死亡状态,如今,我们需要重新考虑这个问题。我个人认为患者的脑回路仅仅是受到了抑制,我们的治疗手段能够中止这种抑制。这一疗法更像是将成年人的大脑重新变成婴儿的状态,因此能够得到较为理想的修复"。
 
相关结果发表在最近的 stroke 杂志上。
 
 
原始出处:
 
Gary K. Steinberg,et al.Clinical Outcomes of Transplanted Modified Bone Marrow–Derived Mesenchymal Stem Cells in Stroke: A Phase 1/2a Study.STROKEAHA.116.012995
Published online before print June 2, 2016,doi: 10.1161/STROKEAHA.116.012995
 

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    2016-10-12 ylzr123

    拜读了,受益匪浅,点个赞!

    0

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    2016-06-06 milkshark

    干细胞厉害

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=147199, encodeId=ea1114e1991a, content=拜读了,受益匪浅,点个赞!, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo7s7ZCKOmmbBTD6nE7gcd5OZpvyGEzkxBP3S275k5ZJVrsPkotZhBglRHM9rKvcj1OgkssqhcnoPw8zIaMZTF8c/0, createdBy=4c441942088, createdName=ylzr123, createdTime=Wed Oct 12 21:38:24 CST 2016, time=2016-10-12, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1314446, encodeId=3b441314446b1, content=<a href='/topic/show?id=4c6348e80a9' target=_blank style='color:#2F92EE;'>#干细胞疗法#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=32, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=48780, encryptionId=4c6348e80a9, topicName=干细胞疗法)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=5319428, createdName=jjjiang0199, createdTime=Tue Jun 07 07:16:00 CST 2016, time=2016-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1619429, encodeId=746d1619429af, content=<a href='/topic/show?id=8dd46061824' target=_blank style='color:#2F92EE;'>#有效治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=60618, encryptionId=8dd46061824, topicName=有效治疗)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=docwu2019, createdTime=Tue Jun 07 07:16:00 CST 2016, time=2016-06-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=88742, encodeId=e66488e4287, content=干细胞厉害, beContent=null, objectType=article, channel=null, level=null, likeNumber=123, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7cde98330, createdName=milkshark, createdTime=Mon Jun 06 06:50:00 CST 2016, time=2016-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=88741, encodeId=01a488e41e4, content=很不错啊, beContent=null, objectType=article, channel=null, level=null, likeNumber=102, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7cde98330, createdName=milkshark, createdTime=Mon Jun 06 06:49:00 CST 2016, time=2016-06-06, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=88701, encodeId=158288e017c, content=希望有更多的临床实验, beContent=null, objectType=article, channel=null, level=null, likeNumber=142, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20160307/IMG56DD346053F0D5538.jpg, createdBy=7bed1697174, createdName=那夏花开, createdTime=Sun Jun 05 23:27:00 CST 2016, time=2016-06-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=88592, encodeId=f94a885926b, content=不错的文章,多学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=123, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=53751677671, createdName=沉心多思, createdTime=Sun Jun 05 21:02:00 CST 2016, time=2016-06-05, status=1, ipAttribution=)]
    2016-06-06 milkshark

    很不错啊

    0

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    2016-06-05 那夏花开

    希望有更多的临床实验

    0

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    2016-06-05 沉心多思

    不错的文章,多学习

    0

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