PNAS:激素作祟?睾丸酮或成结肠癌重要推手

2014-12-12 MedSci MedSci原创

过去的研究指出,对于结肠癌、胰腺癌以及胃癌等无性别特异性的肿瘤,男性似乎比女性患病率更高。科学家们推测引起这种现象的原因,在于女性可能受到雌性激素如雌激素的保护,阻止了肿瘤的形成。而今,来自密苏里州大学的研究人员发现,有证据支持男性激素睾丸酮可能是结肠肿瘤形成的相关因素。该研究成果发表在最新一期的Proceedings of the National Academy of Sciences杂志上。

过去的研究指出,对于结肠癌胰腺癌以及胃癌等无性别特异性的肿瘤,男性似乎比女性患病率更高。科学家们推测引起这种现象的原因,在于女性可能受到雌性激素如雌激素的保护,阻止了肿瘤的形成。而今,来自密苏里州大学的研究人员发现,有证据支持男性激素睾丸酮可能是结肠肿瘤形成的相关因素。该研究成果发表在最新一期的Proceedings of the National Academy of Sciences杂志上。

在这项研究中,密苏里州大学医学院的兽医病理学助理教授——Amos-Landgraf博士对一组雄性大鼠体内正常水平自然发生的结肠癌进行观察研究。然后他除去那些大鼠体内的睾酮,发现结肠癌的发生率急剧下降。而经过重新产生睾酮后,大鼠的结肠癌发生率恢复正常水平。

“在以前,科学家们认为雌性激素可能存在对抗肿瘤的易感性的作用,” Amos-Landgraf说,“然而,本研究通过除去大鼠体内睾酮导致结肠癌易感性的急剧减少这一现象,可以看出实际上似乎是雄性激素可能有助于结肠肿瘤的生长,而并不是雌性荷尔蒙的保护。”

该研究在ApcPirc/+ (Pirc)模型大鼠中进行,该模型是早期结肠癌的动物模型。雌性耗尽内源性激素后(卵巢切除)对结肠腺瘤的发病并没有表现出明显的变化,雌性激素替代治疗也并没有影响肿瘤的发病。相反,由睾丸衰竭(趋势手术)导致的雄性激素减少则明显抑制了结肠癌腺瘤的发生,而补充睾酮则逆转了上述作用。在结肠腺瘤中并没有检测到雄激素受体,提示可能是睾酮并不是直接对肿瘤的发生起作用。

Amos-Landgraf还指出,在绝经后的妇女中结肠癌的发病率较高,也可以认为是支持睾酮作为一个对结肠肿瘤的生长存在促进作用因素的有效证据。

“在正常情况下,所有的女性体内都存在着一定水平的雄激素睾酮,但通常其水平会比雌性激素中的雌激素以及其他激素低得多,” Amos-Landgraf说,“一旦妇女经历了更年期,雌性激素水平逐渐下降,而她们的睾丸酮激素水平就变得相对较高。与之相对应的,是她们开始具有结肠癌较高的发生率。这可能是睾酮水平与结肠肿瘤的生长相关的一个迹象。

Amos-Landgraf说他的研究依然在继续,他正计划在下一步的研究中,检测男性和女性遗传性状之间的癌症易感性的差异,进一步探讨性别差异在肿瘤发生发展中的作用。

原始出处:

James M. Amos-Landgraf, Jarom Heijmans, Mattheus C. B. Wielenga, Elisa Dunkin, Kathy J. Krentz, Linda Clipson, Antwan G. Ederveen, Patrick G. Groothuis, Sietse Mosselman, Vanesa Muncan, Daniel W. Hommes, Alexandra Shedlovsky, William F. Dove, Gijs R. van den Brink. Sex disparity in colonic adenomagenesis involves promotion by male hormones, not protection by female hormones. Proceedings of the National Academy of Sciences, 2014; 111 (46): 16514 DOI: 10.1073/pnas.1323064111

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 (8)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=41079, encodeId=3fa2410e91a, content=看好, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=df9e1651052, createdName=三三五五, createdTime=Sun Oct 25 14:38:00 CST 2015, time=2015-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1855674, encodeId=db8818556e4fc, 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=Mon Aug 03 08:04:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26435, encodeId=273c264359d, content=好好学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=93, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 17:45:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13094, encodeId=b11513094b0, content=很不错的研究,动物模型很好,立题也不错,对临床其他研究有启发 <br> <br> , beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 15:44:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1368307, encodeId=1049136830ea7, content=<a href='/topic/show?id=2fa7e3068b9' target=_blank style='color:#2F92EE;'>#睾丸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73068, encryptionId=2fa7e3068b9, topicName=睾丸)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6976269, createdName=zhangph, createdTime=Sun Dec 14 11:04:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13091, encodeId=c1f51309108, content=很不错的研究,对临床其他研究有启发, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 07:07:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13088, encodeId=2e0d1308856, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:48:00 CST 2014, time=2014-12-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13087, encodeId=17831308ea5, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:47:00 CST 2014, time=2014-12-13, status=1, ipAttribution=)]
    2015-10-25 三三五五

    看好

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=41079, encodeId=3fa2410e91a, content=看好, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=df9e1651052, createdName=三三五五, createdTime=Sun Oct 25 14:38:00 CST 2015, time=2015-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1855674, encodeId=db8818556e4fc, 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=Mon Aug 03 08:04:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26435, encodeId=273c264359d, content=好好学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=93, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 17:45:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13094, encodeId=b11513094b0, content=很不错的研究,动物模型很好,立题也不错,对临床其他研究有启发 <br> <br> , beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 15:44:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1368307, encodeId=1049136830ea7, content=<a href='/topic/show?id=2fa7e3068b9' target=_blank style='color:#2F92EE;'>#睾丸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73068, encryptionId=2fa7e3068b9, topicName=睾丸)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6976269, createdName=zhangph, createdTime=Sun Dec 14 11:04:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13091, encodeId=c1f51309108, content=很不错的研究,对临床其他研究有启发, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 07:07:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13088, encodeId=2e0d1308856, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:48:00 CST 2014, time=2014-12-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13087, encodeId=17831308ea5, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:47:00 CST 2014, time=2014-12-13, status=1, ipAttribution=)]
    2015-08-03 drwjr
  3. [GetPortalCommentsPageByObjectIdResponse(id=41079, encodeId=3fa2410e91a, content=看好, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=df9e1651052, createdName=三三五五, createdTime=Sun Oct 25 14:38:00 CST 2015, time=2015-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1855674, encodeId=db8818556e4fc, 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=Mon Aug 03 08:04:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26435, encodeId=273c264359d, content=好好学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=93, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 17:45:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13094, encodeId=b11513094b0, content=很不错的研究,动物模型很好,立题也不错,对临床其他研究有启发 <br> <br> , beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 15:44:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1368307, encodeId=1049136830ea7, content=<a href='/topic/show?id=2fa7e3068b9' target=_blank style='color:#2F92EE;'>#睾丸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73068, encryptionId=2fa7e3068b9, topicName=睾丸)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6976269, createdName=zhangph, createdTime=Sun Dec 14 11:04:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13091, encodeId=c1f51309108, content=很不错的研究,对临床其他研究有启发, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 07:07:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13088, encodeId=2e0d1308856, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:48:00 CST 2014, time=2014-12-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13087, encodeId=17831308ea5, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:47:00 CST 2014, time=2014-12-13, status=1, ipAttribution=)]
    2015-06-08 ljjj1053

    好好学习学习

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=41079, encodeId=3fa2410e91a, content=看好, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=df9e1651052, createdName=三三五五, createdTime=Sun Oct 25 14:38:00 CST 2015, time=2015-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1855674, encodeId=db8818556e4fc, 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=Mon Aug 03 08:04:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26435, encodeId=273c264359d, content=好好学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=93, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 17:45:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13094, encodeId=b11513094b0, content=很不错的研究,动物模型很好,立题也不错,对临床其他研究有启发 <br> <br> , beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 15:44:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1368307, encodeId=1049136830ea7, content=<a href='/topic/show?id=2fa7e3068b9' target=_blank style='color:#2F92EE;'>#睾丸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73068, encryptionId=2fa7e3068b9, topicName=睾丸)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6976269, createdName=zhangph, createdTime=Sun Dec 14 11:04:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13091, encodeId=c1f51309108, content=很不错的研究,对临床其他研究有启发, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 07:07:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13088, encodeId=2e0d1308856, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:48:00 CST 2014, time=2014-12-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13087, encodeId=17831308ea5, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:47:00 CST 2014, time=2014-12-13, status=1, ipAttribution=)]
    2014-12-14 cbp

    很不错的研究,动物模型很好,立题也不错,对临床其他研究有启发

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=41079, encodeId=3fa2410e91a, content=看好, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=df9e1651052, createdName=三三五五, createdTime=Sun Oct 25 14:38:00 CST 2015, time=2015-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1855674, encodeId=db8818556e4fc, 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=Mon Aug 03 08:04:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26435, encodeId=273c264359d, content=好好学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=93, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 17:45:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13094, encodeId=b11513094b0, content=很不错的研究,动物模型很好,立题也不错,对临床其他研究有启发 <br> <br> , beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 15:44:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1368307, encodeId=1049136830ea7, content=<a href='/topic/show?id=2fa7e3068b9' target=_blank style='color:#2F92EE;'>#睾丸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73068, encryptionId=2fa7e3068b9, topicName=睾丸)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6976269, createdName=zhangph, createdTime=Sun Dec 14 11:04:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13091, encodeId=c1f51309108, content=很不错的研究,对临床其他研究有启发, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 07:07:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13088, encodeId=2e0d1308856, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:48:00 CST 2014, time=2014-12-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13087, encodeId=17831308ea5, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:47:00 CST 2014, time=2014-12-13, status=1, ipAttribution=)]
    2014-12-14 zhangph
  6. [GetPortalCommentsPageByObjectIdResponse(id=41079, encodeId=3fa2410e91a, content=看好, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=df9e1651052, createdName=三三五五, createdTime=Sun Oct 25 14:38:00 CST 2015, time=2015-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1855674, encodeId=db8818556e4fc, 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=Mon Aug 03 08:04:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26435, encodeId=273c264359d, content=好好学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=93, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 17:45:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13094, encodeId=b11513094b0, content=很不错的研究,动物模型很好,立题也不错,对临床其他研究有启发 <br> <br> , beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 15:44:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1368307, encodeId=1049136830ea7, content=<a href='/topic/show?id=2fa7e3068b9' target=_blank style='color:#2F92EE;'>#睾丸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73068, encryptionId=2fa7e3068b9, topicName=睾丸)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6976269, createdName=zhangph, createdTime=Sun Dec 14 11:04:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13091, encodeId=c1f51309108, content=很不错的研究,对临床其他研究有启发, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 07:07:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13088, encodeId=2e0d1308856, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:48:00 CST 2014, time=2014-12-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13087, encodeId=17831308ea5, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:47:00 CST 2014, time=2014-12-13, status=1, ipAttribution=)]
    2014-12-14 cbp

    很不错的研究,对临床其他研究有启发

    0

  7. [GetPortalCommentsPageByObjectIdResponse(id=41079, encodeId=3fa2410e91a, content=看好, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=df9e1651052, createdName=三三五五, createdTime=Sun Oct 25 14:38:00 CST 2015, time=2015-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1855674, encodeId=db8818556e4fc, 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=Mon Aug 03 08:04:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26435, encodeId=273c264359d, content=好好学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=93, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 17:45:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13094, encodeId=b11513094b0, content=很不错的研究,动物模型很好,立题也不错,对临床其他研究有启发 <br> <br> , beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 15:44:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1368307, encodeId=1049136830ea7, content=<a href='/topic/show?id=2fa7e3068b9' target=_blank style='color:#2F92EE;'>#睾丸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73068, encryptionId=2fa7e3068b9, topicName=睾丸)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6976269, createdName=zhangph, createdTime=Sun Dec 14 11:04:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13091, encodeId=c1f51309108, content=很不错的研究,对临床其他研究有启发, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 07:07:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13088, encodeId=2e0d1308856, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:48:00 CST 2014, time=2014-12-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13087, encodeId=17831308ea5, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:47:00 CST 2014, time=2014-12-13, status=1, ipAttribution=)]
    2014-12-13 cbp

    动物模型很好,立题也不错

    0

  8. [GetPortalCommentsPageByObjectIdResponse(id=41079, encodeId=3fa2410e91a, content=看好, beContent=null, objectType=article, channel=null, level=null, likeNumber=147, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=df9e1651052, createdName=三三五五, createdTime=Sun Oct 25 14:38:00 CST 2015, time=2015-10-25, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1855674, encodeId=db8818556e4fc, 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=Mon Aug 03 08:04:00 CST 2015, time=2015-08-03, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=26435, encodeId=273c264359d, content=好好学习学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=93, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=/v1.0.0/img/user_icon.png, createdBy=ac181616815, createdName=ljjj1053, createdTime=Mon Jun 08 17:45:00 CST 2015, time=2015-06-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13094, encodeId=b11513094b0, content=很不错的研究,动物模型很好,立题也不错,对临床其他研究有启发 <br> <br> , beContent=null, objectType=article, channel=null, level=null, likeNumber=111, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 15:44:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1368307, encodeId=1049136830ea7, content=<a href='/topic/show?id=2fa7e3068b9' target=_blank style='color:#2F92EE;'>#睾丸#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=28, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73068, encryptionId=2fa7e3068b9, topicName=睾丸)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6976269, createdName=zhangph, createdTime=Sun Dec 14 11:04:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13091, encodeId=c1f51309108, content=很不错的研究,对临床其他研究有启发, beContent=null, objectType=article, channel=null, level=null, likeNumber=91, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sun Dec 14 07:07:00 CST 2014, time=2014-12-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13088, encodeId=2e0d1308856, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=95, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:48:00 CST 2014, time=2014-12-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=13087, encodeId=17831308ea5, content=动物模型很好,立题也不错, beContent=null, objectType=article, channel=null, level=null, likeNumber=88, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=809381710, createdName=cbp, createdTime=Sat Dec 13 22:47:00 CST 2014, time=2014-12-13, status=1, ipAttribution=)]
    2014-12-13 cbp

    动物模型很好,立题也不错

    0

相关资讯

CSCO 2014:结肠腺瘤及早期结肠癌的内镜治疗

大肠癌的早期诊断及治疗专场 (1楼1F-2会议室) 报告者:复旦大学附属中山医院 姚礼庆 时间:9 月 18 日 09:30~09:50 内镜黏膜下剥离术(ESD)与内镜黏膜切除术(EMR) 是消化内镜的两种术式,两者均有侵袭小、术后疼痛轻 微、康复快等特点,可用于早期胃肠道肿瘤的微创治疗。 EMR 一般不适用于病灶大于 20 mm 的病变。ESD 对于 较大病灶可以完全整块剥离,且复发率低,

Lancet Oncology:联合奥沙利铂的辅助治疗可改善III期结肠癌患者存活率

德、英、美等国癌症研究所的科学家进行了一项研究,发现联合奥沙利铂的辅助化疗可改善III期结肠癌患者存活率,相关研究成果在线发表于11月12日的The Lancet Oncology杂志上。

JNCI:DPYD变异能够作为5-FU在结肠癌辅助化疗中毒性的预测因子(NCCTG N0147)

研究背景:5-FU在体内的分解经过3个酶促催化步骤完成,其中二氢嘧啶脱氢酶(dihydropyrimide dehydrogenase,DPYD/DPD)是嘧啶类分解代谢的起始和限速酶,将5-FU还原为二氢氟尿嘧啶(FUH2),再经过另外2种酶催化形成最终代谢产物经肾脏排出体外。DPYD作为5-FU分解过程的关键酶,其活性高低直接决定了5-FU进入合成代谢和产生核苷酸类似物的量。药代动力学研究显示

Genetics:Pla2g2a基因变异影响结肠癌的形成

由Kristi Neufeld博士领导的科学研究新发现,可能对癌症实验研究以及研究人员如何在小鼠体内测试抗癌药物、并最终对预防结肠癌产生潜在的重要影响。 Neufeld博士重点研究了一种可以防止结肠癌的基因——结肠腺瘤性息肉病基因(adenomatous polyposis coli,APC)。她的许多实验涉及到利用APC基因突变(这会导致结肠癌)小鼠来测试,观察是否会有针对该突变的新化合物。

Clin Colorectal Cancer:不同性别结肠癌患者增龄性改变的优势差异

尽管,已有文献报道老年人,尤其是女性,右半结肠癌(CRC)的患病率逐渐增加,但是不同性别、年龄变化对于右半结肠癌特点的影响,尤其是癌症的位置,都尚未可知。 来自日本东京大学医学院肿瘤外科的Iida Y学者等对此进行了研究,提示了年龄变化不仅可增加合并腺瘤的数量(尤其是男性),还可以使结肠癌定位更易于定于右侧(尤其是女性)。文献最近发表在Clinical Colorectal Cancer上。

Ann Oncol:行5-FU或FOLFIRI辅助化疗的II、III期结肠癌患者与微卫星状态相关的预后评估(PETACC-3试验)

背景:微卫星(microsatellite, MS)是基因组中重复DNA的小区域,可以以各种不同的方式影响细胞功能。在过去的研究中,微卫星通常被称为“垃圾DNA”,但目前认为微卫星在许多疾病和基因突变中是十分重要的。一般情况下,细胞复制过程中发生突变的基因会被机体识别,并通过DNA修复机制进行清理。然而并不是所有的突变都能够完全被清楚,逃逸的基因突变则可能成为癌症发生的重要机制。微卫星不稳定(mi