Baidu
map

Cell:开启糖尿病个体化治疗的大门

2015-07-03 佚名 生物通

来自宾夕法尼亚大学的研究人员揭示出,一种抗糖尿病药物会在个体间产生不同的疗效取决于一些微小的自然DNA序列变异。宾夕法尼亚大学Perelman医学院的Mitchell Lazar博士、Raymond Soccio博士和同事们,希望能够应用这一知识来开发出针对糖尿病和其他代谢性疾病的个体化疗法。研究小组将他们的结果发布在本周的《细胞》(Cell)杂志上。Lazar和研究小组将焦点放在了一种叫做P

来自宾夕法尼亚大学的研究人员揭示出,一种抗糖尿病药物会在个体间产生不同的疗效取决于一些微小的自然DNA序列变异。

宾夕法尼亚大学Perelman医学院的Mitchell Lazar博士、Raymond Soccio博士和同事们,希望能够应用这一知识来开发出针对糖尿病和其他代谢性疾病的个体化疗法。研究小组将他们的结果发布在本周的《细胞》(Cell)杂志上。

Lazar和研究小组将焦点放在了一种叫做PPAR-γ的重要脂肪细胞分子上,它是用来治疗2型糖尿病的噻唑烷二酮(Thiazolidinedione, TZD)类降糖药的作用靶点。PPAR-γ会结合到一些开启其他基因的调控开关的DNA上,宾夕法尼亚大学的研究人员证实这一调控开关DNA中的一些自然遗传差异,决定了PPAR-γ和TZD类药物能否开启其他的基因。

论文主要作者Soccio 说:“这项研究工作的意义超越了PPAR-γ和TZDs,而涵盖了所有直接对基因组起作用、调控健康和疾病状态下生理学的药物。”论文的资深作者、糖尿病、肥胖和代谢研究所主任、医学与遗传学教授Lazar说,事实上20%处方药物诸如甲状腺激素和类固醇一类靶向的都是与PPAR-γ相关的核受体蛋白。

这些遗传差异被称作为单核苷酸多态性(SNP),指的是自然存在于个体之间DNA的A, T, C和G碱基字母表中的变异。许多这样的SNPs都与疾病风险有关联,例如DNA中某一指定位点为A碱基的个体,比对应位点为G碱基的个体具有更高的糖尿病风险。然而,这些疾病相关的SNPs往往定位在所谓的基因组“暗物质”中,它们不直接为基因编码,但却包含了一些控制基因的开关。

Lazar和研究小组证实,PPAR-γ开关中的SNPs提供了一种疾病风险相关机制。例如,其中一个SNP与高密度脂蛋白(HDL,“好”胆固醇)和甘油三酯等血脂,以及腰臀比例有关。这一系列的表现称作为“代谢综合征”, Soccio指出“惊人的一点是,单个DNA碱基改变就可以决定PPAR-γ是否结合脂肪组织中的一个调控位点,这有可能会改变个体的代谢综合征风险。”

研究一开始展开了一些动物研究,证实不同小鼠品系间存在差异的一些自然SNPs可以决定,PPAR-γ能否找到通往基因组暗物质中它的DNA调控开关的路。接下来,他们用TZDs处理小鼠,发现这些SNPs还决定了药物是否能开启一些基因。

个体的遗传组成可以影响药物反应,这一事实促成了相对较新的个体化药物基因组学(pharmacogenomics)领域。Lazar说:“我们的研究提供了概念证明:自然存在的调控遗传变异可以影响核受体介导的基因激活,更广泛地说,即活体动物中的药物反应。这对于TZDs具有特殊的意义,TZDs具有强大的抗糖尿病作用,但由于无反应、副作用和不良事件等限制了它的临床效用。”

TZDs是当前唯一靶向脂肪细胞,提高糖尿病患者自身对胰岛素反应的降糖药物,但由于水肿和骨质疏松等副作用,以及有研究报道它提高了心脏病发作和膀胱癌的风险,近年来被弃而不用。并且,20%的2型糖尿病患者服用TZDs无法改善他们对糖尿病的控制。

Soccio说:“有一天将可以使用我们在本研究中采用的方法来预测,谁将从TZD样药物中获得最大的利益,因此我们需要确定SNP差异的模式,将它们综合到一起或许可以阐明这些药物让某一个体受益或受害,而不影响另一个体的原因。这种精准施药是我们研究工作的一个主要目标。”

研究小组继续研究了来自宾夕法尼亚大学医学院接受减肥手术的患者的脂肪组织。发现与小鼠相似,人类SNPs变异也可以影响PPAR-γ结合DNA调控开关,这促使研究人员查看了一些大型人类遗传研究中的这些SNPs。他们利用一个芬兰数据库来了解来自1500多人的脂肪组织中有多少开启的基因,证实影响PPAR-γ结合的SNPs也决定了人群中的基因活性水平。最后他们查看了全基因组关联研究(GWAS)大型人类遗传分析的结果,发现在脂肪中影响PPAR-γ结合的SNPs引发了一些代谢性疾病的风险。

这些研究第一次证实了,脂肪细胞中PPAR-γ与DNA结合的自然遗传变异可以决定个体疾病风险和药物反应。“我们的研究工作阐明了PPAR-γ结合的调控DNA中的一些遗传差异,以及这些人群间的差异如何能够让我们更好地预测代谢疾病,然后应用精准施药来治疗或预防疾病,”Soccio说。

原始出处:

Raymond E. Soccio, Eric R. Chen, Satyajit R. Rajapurkar et al.Genetic Variation Determines PPARγ Function and Anti-diabetic Drug Response In Vivo.Cell, June 2015.DOI: http://dx.doi.org/10.1016/j.cell.2015.06.025

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 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1959404, encodeId=1ff519594049e, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=智智灵药, createdTime=Thu Jun 16 15:19:00 CST 2016, time=2016-06-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869150, encodeId=5734186915032, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Sat Oct 03 20:19:00 CST 2015, time=2015-10-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1379745, encodeId=c4ec13e97459c, content=<a href='/topic/show?id=193721289ea' target=_blank style='color:#2F92EE;'>#个体化治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=21289, encryptionId=193721289ea, topicName=个体化治疗)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=11b4465, createdName=ying_wu, createdTime=Sun Jul 05 04:19:00 CST 2015, time=2015-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1435310, encodeId=b2361435310f7, content=<a href='/topic/show?id=9a5c212e88f' target=_blank style='color:#2F92EE;'>#个体化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=21278, encryptionId=9a5c212e88f, topicName=个体化)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sun Jul 05 04:19:00 CST 2015, time=2015-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=30490, encodeId=52ec3049058, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=133, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Sat Jul 04 14:50:00 CST 2015, time=2015-07-04, status=1, ipAttribution=)]
    2016-06-16 智智灵药
  2. [GetPortalCommentsPageByObjectIdResponse(id=1959404, encodeId=1ff519594049e, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=智智灵药, createdTime=Thu Jun 16 15:19:00 CST 2016, time=2016-06-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869150, encodeId=5734186915032, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Sat Oct 03 20:19:00 CST 2015, time=2015-10-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1379745, encodeId=c4ec13e97459c, content=<a href='/topic/show?id=193721289ea' target=_blank style='color:#2F92EE;'>#个体化治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=21289, encryptionId=193721289ea, topicName=个体化治疗)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=11b4465, createdName=ying_wu, createdTime=Sun Jul 05 04:19:00 CST 2015, time=2015-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1435310, encodeId=b2361435310f7, content=<a href='/topic/show?id=9a5c212e88f' target=_blank style='color:#2F92EE;'>#个体化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=21278, encryptionId=9a5c212e88f, topicName=个体化)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sun Jul 05 04:19:00 CST 2015, time=2015-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=30490, encodeId=52ec3049058, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=133, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Sat Jul 04 14:50:00 CST 2015, time=2015-07-04, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1959404, encodeId=1ff519594049e, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=智智灵药, createdTime=Thu Jun 16 15:19:00 CST 2016, time=2016-06-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869150, encodeId=5734186915032, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Sat Oct 03 20:19:00 CST 2015, time=2015-10-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1379745, encodeId=c4ec13e97459c, content=<a href='/topic/show?id=193721289ea' target=_blank style='color:#2F92EE;'>#个体化治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=21289, encryptionId=193721289ea, topicName=个体化治疗)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=11b4465, createdName=ying_wu, createdTime=Sun Jul 05 04:19:00 CST 2015, time=2015-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1435310, encodeId=b2361435310f7, content=<a href='/topic/show?id=9a5c212e88f' target=_blank style='color:#2F92EE;'>#个体化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=21278, encryptionId=9a5c212e88f, topicName=个体化)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sun Jul 05 04:19:00 CST 2015, time=2015-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=30490, encodeId=52ec3049058, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=133, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Sat Jul 04 14:50:00 CST 2015, time=2015-07-04, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1959404, encodeId=1ff519594049e, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=智智灵药, createdTime=Thu Jun 16 15:19:00 CST 2016, time=2016-06-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869150, encodeId=5734186915032, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Sat Oct 03 20:19:00 CST 2015, time=2015-10-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1379745, encodeId=c4ec13e97459c, content=<a href='/topic/show?id=193721289ea' target=_blank style='color:#2F92EE;'>#个体化治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=21289, encryptionId=193721289ea, topicName=个体化治疗)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=11b4465, createdName=ying_wu, createdTime=Sun Jul 05 04:19:00 CST 2015, time=2015-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1435310, encodeId=b2361435310f7, content=<a href='/topic/show?id=9a5c212e88f' target=_blank style='color:#2F92EE;'>#个体化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=21278, encryptionId=9a5c212e88f, topicName=个体化)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sun Jul 05 04:19:00 CST 2015, time=2015-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=30490, encodeId=52ec3049058, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=133, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Sat Jul 04 14:50:00 CST 2015, time=2015-07-04, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1959404, encodeId=1ff519594049e, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=50, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=a12645, createdName=智智灵药, createdTime=Thu Jun 16 15:19:00 CST 2016, time=2016-06-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1869150, encodeId=5734186915032, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Sat Oct 03 20:19:00 CST 2015, time=2015-10-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1379745, encodeId=c4ec13e97459c, content=<a href='/topic/show?id=193721289ea' target=_blank style='color:#2F92EE;'>#个体化治疗#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=71, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=21289, encryptionId=193721289ea, topicName=个体化治疗)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=11b4465, createdName=ying_wu, createdTime=Sun Jul 05 04:19:00 CST 2015, time=2015-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1435310, encodeId=b2361435310f7, content=<a href='/topic/show?id=9a5c212e88f' target=_blank style='color:#2F92EE;'>#个体化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=74, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=21278, encryptionId=9a5c212e88f, topicName=个体化)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sun Jul 05 04:19:00 CST 2015, time=2015-07-05, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=30490, encodeId=52ec3049058, content=看看, beContent=null, objectType=article, channel=null, level=null, likeNumber=133, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=ee0d1618732, createdName=huaxipanxing, createdTime=Sat Jul 04 14:50:00 CST 2015, time=2015-07-04, status=1, ipAttribution=)]
    2015-07-04 huaxipanxing

    看看

    0

相关资讯

覃俊杰博士:肠道研究与糖尿病治疗的新方向

20世纪初,梅契尼科夫提出了衰老理论——肠道细菌产生毒素在体内累积造成衰老,乳酸菌的产酸作用可延缓衰老。而21世纪初,美国科学家发现,胃肠道无菌的小鼠在高脂饮食下无肥胖、糖尿病症状,移植患病小鼠的肠道菌落后产生了症状。另外,研究还发现,在减肥过程中,抑杆菌门在肠道细菌中的比例升高,可知,肠道细菌与肥胖有关。目前,肠道研究成为治疗糖尿病的热点,一是改变肠道激素,GLP-1;二是改变肠道生理结构,胃流

Nat Immunol:糖尿病治疗药物可增强免疫抗击癌症

近日,来自Pasteru和Inserm研究所的科学家通过实验研究成功地促进了免疫细胞向肿瘤组织的浸润过程,在肿瘤组织内部诱导了免疫系统应答,阻断了肿瘤生长。在这项发表在国际学术期刊Nature Immunology的文章中,科学家们证明利用上述过程再结合一些免疫治疗方法可以有效杀伤癌细胞。趋化因子是一类能够吸引免疫细胞向炎症组织迁移的小分子物质,在肿瘤发展,感染等疾病过程中发挥重要作用,但这些小分

Neuro Oncol.:糖尿病、抗糖尿病药物的使用与神经胶质瘤风险的关联

背景:先前流行病学研究表明糖尿病和神经胶质瘤的风险之间存在逆关联,但潜在的机制,包括抗糖尿病药物的使用是未知的。方法:因此,我们采用临床实践研究数据链(CPRD)进行病例匹配对照分析。我们确定了1995年到2012年间诊断的神经胶质瘤病例,在临床实践研究数据链CPRD中,每个案例在年龄,性别,总有效时间,普通全科,年活跃历史上有10例对照病例。我们采用条件逻辑回归方程来估计优势比(ORs)与95%

PNAS:取代胰岛素注射的智能贴片

最近,美国北卡罗来纳大学(UC)和北卡罗来纳州立大学(UC State)的研究人员的一项新发明,可能使众多糖尿病患者摆脱痛苦的胰岛素注射,他们研制出第一个“智能胰岛素贴片”,可以检测血糖水平的增加,并在需要的时候分泌适当剂量的胰岛素进入血液。这种贴片是一种方形的薄片,不到一个便士的大小,每一片都覆盖有一百多个微小的针,大约一根睫毛的大小。这些“微针”填充着微小的胰岛素和葡萄糖传感酶存储单元,当

Baidu
map
Baidu
map
Baidu
map