血沉、补体,系统性红斑狼疮活动的重要指标!

2022-01-14 红斑狼疮咨询/风湿新前沿 网络

判断病人的病情活动度对SLE患者的诊治至关重要,血沉和补体水平可以帮助判断病情活动度。

系统性红斑狼疮(systemic lupus erythematosus,SLE)是一种多系统损害的慢性自身性免疫性疾病,确切病因不明,可累及皮肤、浆膜、关节、肾及中枢神经系统等,病理表现为自身抗体及免疫复合物沉积。

在SLE实验室检查项目中,血沉和补体是SLE两大常见指标,也是起伏不定的两个指标。

它们对于SLE患者来说有何临床参考价值?

图片

01血沉

几乎所有的红斑狼疮病人都会出现血沉(ESR)加快的现象。

ESR是一种非特异性的指标 ,影响ESR的因素很多,如红细胞数量、红细胞形状、红细胞聚集状态,CRP、纤维蛋白原、免疫复合物、巨球蛋白的水平及内脏实质性损害。

血沉的增加可能是由于血清蛋白的变化或红细胞的变化。前者通常包括高丙种球蛋白血症、单克隆抗体和纤维蛋白原水平升高。后者主要反映红细胞数量和红细胞大小的减少。约90%以上的活动期SLE病人的血沉会增快,需注意:血沉加快提示狼疮活动,但血沉正常不代表无活动炎症存在。

部分病程长的患者即使处于稳定期血沉仍然较快。假如患者从原来血沉正常或低水平加快,突然大幅度上升,应该警惕复发。

 

图片

02补体

补体(complement,C)本质上是一种存在于血清和组织液的蛋白质,不耐热,活化后具有酶催化活性、可介导一系列免疫应答和炎症反应。补体系统可以被抗原-抗体复合物和(或)微生物所激活,导致免疫细胞溶解和免疫溶血,也就是细胞、细菌及红细胞等的溶解或免疫粘着等免疫生物学现象
SLE疾病活动和感染时可大量产生免疫复合物并沉积在组织器官中,进而激活补体系统,经补体旁路途径清除免疫复合物,这一过程使得补体C3、C4大量消耗,水平降低,并沉积于皮肤基底膜带。因此,SLE疾病活动和感染时补体C3、C4降低。且体内C3、C4水平异常可增加凋亡细胞对核酸的识别,形成更多自身抗体,并结合抗原产生复合物,因此,解补体C3、C4的水平有利于SLE病情监测。
此外,补体主要合成于肝脏,当SLE累及患者肝脏时,肝脏的球蛋白合成能力降低,补体C3、C4合成水平亦会相应受影响。
C3是补体系统经典激活和替代激活途径过程的关键成分。很早就有研究发现,补体水平的降低不总是与SLE的活动性相关,但补体的下降与SLE累及肾脏及血液系统相关。

C4低下除表示SLE活动性外,尚可能是SLE易感性(C4缺乏)的表现。C4是经典途径中第2个被激活的补体分子,一定程度上也反映了SLE患者病情的变化,其水平变化可作为SLE疾病活动性的重要指标。

当补体被激活通过传统途径或旁路途径逐渐降解,其含量也会减少。研究发现,补体C3既可通过经典途径又可经旁路途径介导消耗,而补体C4单经经典途径消耗,故疾病活动和感染时补体C3水平下降较补体C4明显。
根据以上对于SLE患者血沉和补体检查的讲解,我们可以明确C3、C4在SLE病情上是敏感的特异性指标,但是ESR只能作为一种参考指标,只有将两者结合,才能更加准确的判断病情及时采取相应治疗措施。

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=2017332, encodeId=aae1201e3326a, content=<a href='/topic/show?id=9760e69058c' target=_blank style='color:#2F92EE;'>#系统性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76905, encryptionId=9760e69058c, topicName=系统性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2b9b368, createdName=qingrejiedu, createdTime=Thu Feb 24 15:25:21 CST 2022, time=2022-02-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1387489, encodeId=3ca3138e4898e, content=<a href='/topic/show?id=8a3a6814425' target=_blank style='color:#2F92EE;'>#狼疮#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=68144, encryptionId=8a3a6814425, topicName=狼疮)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7a6e2500005, createdName=sunrural_42825357, createdTime=Sun Jan 16 02:25:21 CST 2022, time=2022-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1436318, encodeId=b9a7143631872, content=<a href='/topic/show?id=22f8e71238d' target=_blank style='color:#2F92EE;'>#红斑#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77123, encryptionId=22f8e71238d, topicName=红斑)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sun Jan 16 02:25:21 CST 2022, time=2022-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1535091, encodeId=86b51535091f8, content=<a href='/topic/show?id=96228915477' target=_blank style='color:#2F92EE;'>#血沉#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89154, encryptionId=96228915477, topicName=血沉)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9a5a12588790, createdName=neizongke, createdTime=Sun Jan 16 02:25:21 CST 2022, time=2022-01-16, status=1, ipAttribution=)]
  2. [GetPortalCommentsPageByObjectIdResponse(id=2017332, encodeId=aae1201e3326a, content=<a href='/topic/show?id=9760e69058c' target=_blank style='color:#2F92EE;'>#系统性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76905, encryptionId=9760e69058c, topicName=系统性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2b9b368, createdName=qingrejiedu, createdTime=Thu Feb 24 15:25:21 CST 2022, time=2022-02-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1387489, encodeId=3ca3138e4898e, content=<a href='/topic/show?id=8a3a6814425' target=_blank style='color:#2F92EE;'>#狼疮#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=68144, encryptionId=8a3a6814425, topicName=狼疮)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7a6e2500005, createdName=sunrural_42825357, createdTime=Sun Jan 16 02:25:21 CST 2022, time=2022-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1436318, encodeId=b9a7143631872, content=<a href='/topic/show?id=22f8e71238d' target=_blank style='color:#2F92EE;'>#红斑#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77123, encryptionId=22f8e71238d, topicName=红斑)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sun Jan 16 02:25:21 CST 2022, time=2022-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1535091, encodeId=86b51535091f8, content=<a href='/topic/show?id=96228915477' target=_blank style='color:#2F92EE;'>#血沉#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89154, encryptionId=96228915477, topicName=血沉)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9a5a12588790, createdName=neizongke, createdTime=Sun Jan 16 02:25:21 CST 2022, time=2022-01-16, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=2017332, encodeId=aae1201e3326a, content=<a href='/topic/show?id=9760e69058c' target=_blank style='color:#2F92EE;'>#系统性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76905, encryptionId=9760e69058c, topicName=系统性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2b9b368, createdName=qingrejiedu, createdTime=Thu Feb 24 15:25:21 CST 2022, time=2022-02-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1387489, encodeId=3ca3138e4898e, content=<a href='/topic/show?id=8a3a6814425' target=_blank style='color:#2F92EE;'>#狼疮#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=68144, encryptionId=8a3a6814425, topicName=狼疮)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7a6e2500005, createdName=sunrural_42825357, createdTime=Sun Jan 16 02:25:21 CST 2022, time=2022-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1436318, encodeId=b9a7143631872, content=<a href='/topic/show?id=22f8e71238d' target=_blank style='color:#2F92EE;'>#红斑#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77123, encryptionId=22f8e71238d, topicName=红斑)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sun Jan 16 02:25:21 CST 2022, time=2022-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1535091, encodeId=86b51535091f8, content=<a href='/topic/show?id=96228915477' target=_blank style='color:#2F92EE;'>#血沉#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89154, encryptionId=96228915477, topicName=血沉)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9a5a12588790, createdName=neizongke, createdTime=Sun Jan 16 02:25:21 CST 2022, time=2022-01-16, status=1, ipAttribution=)]
    2022-01-16 zhouqu_8
  4. [GetPortalCommentsPageByObjectIdResponse(id=2017332, encodeId=aae1201e3326a, content=<a href='/topic/show?id=9760e69058c' target=_blank style='color:#2F92EE;'>#系统性#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76905, encryptionId=9760e69058c, topicName=系统性)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2b9b368, createdName=qingrejiedu, createdTime=Thu Feb 24 15:25:21 CST 2022, time=2022-02-24, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1387489, encodeId=3ca3138e4898e, content=<a href='/topic/show?id=8a3a6814425' target=_blank style='color:#2F92EE;'>#狼疮#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=43, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=68144, encryptionId=8a3a6814425, topicName=狼疮)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=7a6e2500005, createdName=sunrural_42825357, createdTime=Sun Jan 16 02:25:21 CST 2022, time=2022-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1436318, encodeId=b9a7143631872, content=<a href='/topic/show?id=22f8e71238d' target=_blank style='color:#2F92EE;'>#红斑#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=77123, encryptionId=22f8e71238d, topicName=红斑)], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/aLGWoFXAyMbIu3qymFOyheQLjPSX3OUs5GmkyBlcCOwTPIeq3why9NGibxxUqYo6hcx8qZLHZFgNPnBK1yzWeOFpyg2OnWOt0/0, createdBy=fa4716, createdName=zhouqu_8, createdTime=Sun Jan 16 02:25:21 CST 2022, time=2022-01-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1535091, encodeId=86b51535091f8, content=<a href='/topic/show?id=96228915477' target=_blank style='color:#2F92EE;'>#血沉#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=44, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=89154, encryptionId=96228915477, topicName=血沉)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=9a5a12588790, createdName=neizongke, createdTime=Sun Jan 16 02:25:21 CST 2022, time=2022-01-16, status=1, ipAttribution=)]
    2022-01-16 neizongke

相关资讯

太难了!得了“不死的癌症”红斑狼疮,“真癌症”的发生风险竟也会显著升高!

ARTHRITIS RES THER:系统性红斑狼疮患者恶性肿瘤风险增加:韩国基于人群的队列研究

ARD:宏基因组关联研究揭示了日本系统性红斑狼疮患者肠道微生物群的疾病特异性景观

本研究旨在通过全面的宏基因组范围关联研究 (MWAS) 以及相应的综合分析,揭示肠道微生物群与SLE 相关的变化及其与宿主的相互作用。

Autoimmun Rev:系统性红斑狼疮妇女导致生育异常的相关因素

系统性红斑狼疮(SLE)是一种慢性自身免疫性疾病,主要影响育龄期成年女性。

CHMP推荐Saphnelo治疗系统性红斑狼疮

系统性红斑狼疮(SLE)是一种复杂的自身免疫性疾病,可以影响任何身体器官。SLE患者经常经历疾病控制不足、长期器官损伤和与健康相关的生活质量差。

结缔组织疾病中的肺动脉高压:新证据?新挑战?

肺动脉高压是系统性硬化症、混合性结缔组织病和系统性红斑狼疮等不同结缔组织疾病的致命并发症。

ARD: 羟氯喹减少或停药后的发作:系统性狼疮国际合作诊所 (SLICC) 初始队列的结果

HCQ减量/停药后SLE发作风险高于HCQ维持。维持、减少或停止HCQ的决定可能会对特定亚组产生不同的影响,包括使用泼尼松和/或教育程度低的亚组。