PNAS:消化道细菌与食物过敏

2014-08-26 佚名 神秘的地球

向小鼠的胃肠道引入梭菌属细菌能保护这些小鼠不受花生致敏作用的影响,这提示类似的方法可能提供食物过敏的疗法。美国儿童的食物过敏发生率在1997年到2007年之间上升了18%,而且许多研究提示近来饮食、卫生和抗生素使用的变化可能改变正常的胃肠道细菌,其方式增加了对食物过敏的易感性。 为了研究改变的胃肠道细菌对食物的免疫应答的影响,Cathryn Nagler及其同事诱导了小鼠的食物过敏原致敏。当暴

向小鼠的胃肠道引入梭菌属细菌能保护这些小鼠不受花生致敏作用的影响,这提示类似的方法可能提供食物过敏的疗法。美国儿童的食物过敏发生率在1997年到2007年之间上升了18%,而且许多研究提示近来饮食、卫生和抗生素使用的变化可能改变正常的胃肠道细菌,其方式增加了对食物过敏的易感性。

为了研究改变的胃肠道细菌对食物的免疫应答的影响,Cathryn Nagler及其同事诱导了小鼠的食物过敏原致敏。当暴露在花生过敏原中的时候,体内没有定居的细菌的无菌小鼠以及在出生时给予抗生素从而减少胃肠道细菌的小鼠比拥有正常的胃肠道细菌群的小鼠产生了针对花生的更高水平的抗体,这表明了这种细菌可能提供针对食物过敏的一定程度的防护。获得了肠道接种梭菌的无菌以及经过抗生素处理的小鼠不再表现出对花生的敏感性,这提示梭菌调控了针对花生过敏的防护。基因表达分析揭示出了梭菌诱导了细胞因子白细胞介素-22的制造,这减少了小鼠肠的渗透性,导致了更少的过敏原到达血流中。

研究人员表示,这些结果提示益生菌疗法可能预防或治疗对食物的过敏反应。

原始出处:

Andrew T. Stefka, Taylor Feehley, Prabhanshu Tripathi, Ju Qiu, Kathy McCoy, Sarkis K. Mazmanian,Melissa Y. Tjota, Goo-Young Seo, Severine Cao, Betty R. Theriault, Dionysios A. Antonopoulos,Liang Zhou, Eugene B. Chang, Yang-Xin Fu, and Cathryn R. Nagler. Commensal bacteria protect against food allergen sensitization. PNAS, August 25, 2014;  

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=201347, encodeId=953d20134efc, content=益生菌作用很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLGSUSR8zwnWWLT4FMl5XH8S58HuZslVkLsAPbXDXaliagK7TOxQfmngKibG1yrDonepCLDkcxGk8hS/0, createdBy=b8282062892, createdName=changjiu, createdTime=Mon May 22 22:06:11 CST 2017, time=2017-05-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1855616, encodeId=944a185561641, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Tue Jun 09 04:53:00 CST 2015, time=2015-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1416657, encodeId=e2d5141665e07, content=<a href='/topic/show?id=27c710101804' target=_blank style='color:#2F92EE;'>#食物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=101018, encryptionId=27c710101804, topicName=食物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e3a33221853, createdName=yhy100201, createdTime=Thu Aug 28 04:53:00 CST 2014, time=2014-08-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1464493, encodeId=b12a1464493ea, content=<a href='/topic/show?id=32e765e6591' target=_blank style='color:#2F92EE;'>#消化道#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=65765, encryptionId=32e765e6591, topicName=消化道)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7b6e6676048, createdName=changhe715, createdTime=Thu Aug 28 04:53:00 CST 2014, time=2014-08-28, status=1, ipAttribution=)]
    2017-05-22 changjiu

    益生菌作用很多

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=201347, encodeId=953d20134efc, content=益生菌作用很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLGSUSR8zwnWWLT4FMl5XH8S58HuZslVkLsAPbXDXaliagK7TOxQfmngKibG1yrDonepCLDkcxGk8hS/0, createdBy=b8282062892, createdName=changjiu, createdTime=Mon May 22 22:06:11 CST 2017, time=2017-05-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1855616, encodeId=944a185561641, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Tue Jun 09 04:53:00 CST 2015, time=2015-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1416657, encodeId=e2d5141665e07, content=<a href='/topic/show?id=27c710101804' target=_blank style='color:#2F92EE;'>#食物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=101018, encryptionId=27c710101804, topicName=食物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e3a33221853, createdName=yhy100201, createdTime=Thu Aug 28 04:53:00 CST 2014, time=2014-08-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1464493, encodeId=b12a1464493ea, content=<a href='/topic/show?id=32e765e6591' target=_blank style='color:#2F92EE;'>#消化道#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=65765, encryptionId=32e765e6591, topicName=消化道)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7b6e6676048, createdName=changhe715, createdTime=Thu Aug 28 04:53:00 CST 2014, time=2014-08-28, status=1, ipAttribution=)]
    2015-06-09 drwjr
  3. [GetPortalCommentsPageByObjectIdResponse(id=201347, encodeId=953d20134efc, content=益生菌作用很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLGSUSR8zwnWWLT4FMl5XH8S58HuZslVkLsAPbXDXaliagK7TOxQfmngKibG1yrDonepCLDkcxGk8hS/0, createdBy=b8282062892, createdName=changjiu, createdTime=Mon May 22 22:06:11 CST 2017, time=2017-05-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1855616, encodeId=944a185561641, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Tue Jun 09 04:53:00 CST 2015, time=2015-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1416657, encodeId=e2d5141665e07, content=<a href='/topic/show?id=27c710101804' target=_blank style='color:#2F92EE;'>#食物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=101018, encryptionId=27c710101804, topicName=食物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e3a33221853, createdName=yhy100201, createdTime=Thu Aug 28 04:53:00 CST 2014, time=2014-08-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1464493, encodeId=b12a1464493ea, content=<a href='/topic/show?id=32e765e6591' target=_blank style='color:#2F92EE;'>#消化道#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=65765, encryptionId=32e765e6591, topicName=消化道)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7b6e6676048, createdName=changhe715, createdTime=Thu Aug 28 04:53:00 CST 2014, time=2014-08-28, status=1, ipAttribution=)]
    2014-08-28 yhy100201
  4. [GetPortalCommentsPageByObjectIdResponse(id=201347, encodeId=953d20134efc, content=益生菌作用很多, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLGSUSR8zwnWWLT4FMl5XH8S58HuZslVkLsAPbXDXaliagK7TOxQfmngKibG1yrDonepCLDkcxGk8hS/0, createdBy=b8282062892, createdName=changjiu, createdTime=Mon May 22 22:06:11 CST 2017, time=2017-05-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1855616, encodeId=944a185561641, content=<a href='/topic/show?id=f32014428fc' target=_blank style='color:#2F92EE;'>#PNAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=14428, encryptionId=f32014428fc, topicName=PNAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=08e964, createdName=drwjr, createdTime=Tue Jun 09 04:53:00 CST 2015, time=2015-06-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1416657, encodeId=e2d5141665e07, content=<a href='/topic/show?id=27c710101804' target=_blank style='color:#2F92EE;'>#食物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=101018, encryptionId=27c710101804, topicName=食物)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=e3a33221853, createdName=yhy100201, createdTime=Thu Aug 28 04:53:00 CST 2014, time=2014-08-28, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1464493, encodeId=b12a1464493ea, content=<a href='/topic/show?id=32e765e6591' target=_blank style='color:#2F92EE;'>#消化道#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=65765, encryptionId=32e765e6591, topicName=消化道)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7b6e6676048, createdName=changhe715, createdTime=Thu Aug 28 04:53:00 CST 2014, time=2014-08-28, status=1, ipAttribution=)]

相关资讯

Ann Intern Med:上消化道内镜检查应理性使用

2014年2月4日在线刊发在Ann Intern Med杂志上的一项回顾性研究显示,在接受上消化道内镜检查的患者中有1/3的患者在3年内重复进行检查,而在这些患者中,约有一半的患者并没有需要重复进行检查的指征。[Ann Intern Med. 2014;160(3):154-160.] 为了研究重复性上消化道内镜检查的应用情况,来自美国的研究者回顾了2004年至2006年医疗保险受益人群

消化道肿瘤诊治研究2010年度进展

   首都医科大学附属北京友谊医院 张澍田教授                 图食管碘染色后的内镜图“粉红色征”食管鳞癌灶在碘染色后不染区 最初为发白的黄色(图A),2~3分钟后转变为粉红色(图B)。 红绿蓝(RGB)为颜色变化定量评估

化学预防消化道肿瘤证据增多

  2010年,消化道肿瘤的化学预防研究取得了令人鼓舞的成就。   二甲双胍预防结直肠癌   多项研究显示,治疗糖尿病的老药——二甲双胍可以预防乳腺癌等多种癌症的发生。2010年9月《癌症预防研究》(Cancer Prev Res)杂志刊登的一项前瞻性随机对照研究显示,二甲双胍可显著减少患者结直肠癌(CRC)异常隐窝病灶(癌前病变)的数目,抑制肠上皮细胞增殖。   NSA