ARD:痛风也许能降低老年痴呆症风险

2015-03-13 MedSci MedSci原创

痛风是关节炎的一种,它很折磨人,而且与心血管疾病风险增加有关。但它也有好的一面:它可能与老年痴呆症风险降低有关。研究人员花了五年时间对英国的59204名痛风患者和238805名非痛风患者进行比较。他们的平均年龄为65岁,在性行为、体重指数、吸烟、喝酒等方面都比较接近。这项研究发表在《风湿病疾病纪事》(The Annals of the Rheumatic Diseases)上。他们发现,痛风患者中

患上痛风也许让你不得老年痴呆症

痛风是关节炎的一种,它很折磨人,而且与心血管疾病风险增加有关。但它也有好的一面:它可能与老年痴呆症风险降低有关。

研究人员花了五年时间对英国的59204名痛风患者和238805名非痛风患者进行比较。他们的平均年龄为65岁,在性行为、体重指数、吸烟、喝酒等方面都比较接近。这项研究发表在《风湿病疾病纪事》(The Annals of the Rheumatic Diseases)上。

他们发现,痛风患者中有309个老年痴呆症病例,非痛风患者中有1942个病例。不管是否正在接受痛风治疗,痛风患者得老年痴呆症的比例比另一组低24%。

这种联系的原因尚不明确。不过,痛风是由于血液中尿酸过多,之前的一些研究表明,尿酸能防止氧化应激。它可能有助于延缓神经老化。

“这是个两难境地,因为尿酸被认为是有害的,与心脏病和中风有关,”这项研究的高级作者、哈佛大学医学教授崔玄圭博士说,“这是第一组表明尿酸不完全有害的数据。尿酸可能也有益处。我们必须通过随机试验来确定,不过这是痛风研究中的一个有趣转折。”

MedSci认为,这项研究有几个重要特色:(1)大样本研究;(2)队列之初,采用了匹配处理,匹配了性行为、体重指数、吸烟、喝酒等已知的风险因素;这种方法称为匹配队列研究。这样可以减少后续这些影响因子对结果的影响;(3)随访长达5年。实际上,对于AD来说,一两年是很难发生差异的。实际上,本研究这项队列仍然会继续随访,如果随访至10年的话,这个结果的价值会更大!

MedSci认为,当然,这项研究还要考虑在初始时痛风患者,经过正常治疗后(尿酸水平下降),与未经充分治疗(尿酸水平依然较高),这两个亚组的AD发生情况如何?也是值得关注的,如果尿酸水平较高时,AD风险下降,可以从另外侧面进一步证实尿酸对AD风险的减低作用,会更具有说服力。

当然,MedSci专家还认为,我们在临床研究时,思维一定要灵活,不要把风险因子一定当成坏因子!要辩证地看待医学问题。很多时候,不少风险因素有一利也可能有一弊。要全面收集临床资料,才更为客观,真实。尤其尿酸,它本身是强的抗氧化分子,对很多器官都可能具有保护作用,但是同样,长期过高的尿酸又会带来一系列的损伤。

另外,MedSci专家还提醒大家,风险因素研究时,要注意定量化。例如饮酒与心血管疾病的关系,极少量饮酒可能还有益,过多当然有害了。如果我们不加区分定量,可能得出的结论存在偏倚。

原始出处:
Lu N, Dubreuil M, Zhang Y, Neogi T, Rai SK, Ascherio A, Hernán MA, Choi HK.Gout and the risk of Alzheimer's disease: a population-based, BMI-matched cohort study. Ann Rheum Dis. 2015 Mar 4. pii: annrheumdis-2014-206917.

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  1. [GetPortalCommentsPageByObjectIdResponse(id=21767, encodeId=cf3921e6729, content=新理论, beContent=null, objectType=article, channel=null, level=null, likeNumber=142, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=63461620684, createdName=yuena, createdTime=Thu Apr 23 14:01:00 CST 2015, time=2015-04-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=19977, encodeId=08ae199e70e, content=赞。, beContent=null, objectType=article, channel=null, level=null, likeNumber=110, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=45a81620519, createdName=DaisyHua1991, createdTime=Wed Apr 08 21:10:00 CST 2015, time=2015-04-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=19180, encodeId=ab68191806e, content= <br> <br> <br> MedSci专家认为,这个研究是比较巧妙的。虽然它是一项回顾性case control的研究,但匹配提出宝贵的意, beContent=null, objectType=article, channel=null, level=null, likeNumber=116, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150920/IMG55FDE671A89482379.jpg, createdBy=cef3108336, createdName=x35042875, createdTime=Tue Mar 31 23:20:00 CST 2015, time=2015-03-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=18693, encodeId=703e1869395, content=难取舍, beContent=null, objectType=article, channel=null, level=null, likeNumber=167, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLBzoPY0a1ZQrECBF90v8AkFiaxRlNpGj1mLzD1B7ibnyBjmDEjiauBSDpOw6w4tI7YxmjdWaIW0SXL4/0, createdBy=35951605658, createdName=等你一年又一年, createdTime=Tue Mar 24 00:25:00 CST 2015, time=2015-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1836101, encodeId=5bc9183610110, content=<a href='/topic/show?id=4613e1212fc' target=_blank style='color:#2F92EE;'>#痴呆症#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71212, encryptionId=4613e1212fc, topicName=痴呆症)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=726030, createdName=Boyinsh, createdTime=Sun Sep 13 02:38:00 CST 2015, time=2015-09-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=18251, encodeId=08071825146, content=精彩至极!, beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=lovetcm, createdTime=Fri Mar 13 21:59:00 CST 2015, time=2015-03-13, status=1, ipAttribution=)]
    2015-04-23 yuena

    新理论

    0

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    2015-04-08 DaisyHua1991

    赞。

    0

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    2015-03-31 x35042875




    MedSci专家认为,这个研究是比较巧妙的。虽然它是一项回顾性case control的研究,但匹配提出宝贵的意

    0

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    2015-03-24 等你一年又一年

    难取舍

    0

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    2015-09-13 Boyinsh
  6. [GetPortalCommentsPageByObjectIdResponse(id=21767, encodeId=cf3921e6729, content=新理论, beContent=null, objectType=article, channel=null, level=null, likeNumber=142, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=63461620684, createdName=yuena, createdTime=Thu Apr 23 14:01:00 CST 2015, time=2015-04-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=19977, encodeId=08ae199e70e, content=赞。, beContent=null, objectType=article, channel=null, level=null, likeNumber=110, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=45a81620519, createdName=DaisyHua1991, createdTime=Wed Apr 08 21:10:00 CST 2015, time=2015-04-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=19180, encodeId=ab68191806e, content= <br> <br> <br> MedSci专家认为,这个研究是比较巧妙的。虽然它是一项回顾性case control的研究,但匹配提出宝贵的意, beContent=null, objectType=article, channel=null, level=null, likeNumber=116, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150920/IMG55FDE671A89482379.jpg, createdBy=cef3108336, createdName=x35042875, createdTime=Tue Mar 31 23:20:00 CST 2015, time=2015-03-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=18693, encodeId=703e1869395, content=难取舍, beContent=null, objectType=article, channel=null, level=null, likeNumber=167, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/mONcle9pic3zSn0GqHrsfLBzoPY0a1ZQrECBF90v8AkFiaxRlNpGj1mLzD1B7ibnyBjmDEjiauBSDpOw6w4tI7YxmjdWaIW0SXL4/0, createdBy=35951605658, createdName=等你一年又一年, createdTime=Tue Mar 24 00:25:00 CST 2015, time=2015-03-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1836101, encodeId=5bc9183610110, content=<a href='/topic/show?id=4613e1212fc' target=_blank style='color:#2F92EE;'>#痴呆症#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=71212, encryptionId=4613e1212fc, topicName=痴呆症)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=726030, createdName=Boyinsh, createdTime=Sun Sep 13 02:38:00 CST 2015, time=2015-09-13, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=18251, encodeId=08071825146, content=精彩至极!, beContent=null, objectType=article, channel=null, level=null, likeNumber=20, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://img.medsci.cn/20220519/c2ab253484ee4527a2d4e9589a4821ac/45de9bf494a54becb2ea4369c9d11e85.jpg, createdBy=7a3710, createdName=lovetcm, createdTime=Fri Mar 13 21:59:00 CST 2015, time=2015-03-13, status=1, ipAttribution=)]
    2015-03-13 lovetcm

    精彩至极!

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