Cystatin C, renal function, and atherosclerosis in rheumatoid arthritis.

Cystatin C, renal function, and atherosclerosis in rheumatoid arthritis.
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胱抑素 C、肾功能和类风湿性关节炎中的动脉粥样硬化。

DOI:
10.3899/jrheum.110168
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发表时间:
2011-11
期刊:
The Journal of rheumatology
影响因子:
--
通讯作者:
Stein CM
Stein CM
中科院分区:
其他
文献类型:
--
作者:
Lertnawapan R;Bian A;Rho YH;Kawai VK;Raggi P;Oeser A;Solus JF;Gebretsadik T;Shintani A;Stein CM

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我们验证了一种假说,即肾功能的新标记物--胱抑素C在类风湿性关节炎(RA)中升高,并与炎症和冠状动脉粥样硬化有关。我们测定了16 7例RA患者和91例正常对照的血清胱抑素C、肌酐、肿瘤坏死因子-α和白介素6浓度、冠状动脉钙化积分(CACS)和改良膳食治疗肾脏病患者的肾小球滤过率。RA患者血清半胱氨酸氨基转移酶C水平(中位数:1.16[0.99~1.35]mg/L)高于对照组(1.0[0.9~1.19]mg/L)(P<0.001),且与血沉(P<0.001)、C反应蛋白(P=0.01)、DAS28(P=0.006)、Framingham危险评分(FRS)呈正相关(P=0.02)。在RA中,Cystatin C与CACs相关(P<0.001),但在调整了年龄、种族、性别和FRS后,这种相关性并不显著(P=0.44)。类风湿性关节炎患者血清半胱氨酸氨基转移酶C浓度高于对照组,可能反映炎症和未发现的亚临床肾功能障碍。胱抑素C提供了有关RA动脉粥样硬化风险的信息,但这与传统的心血管危险因素有关。
We examined the hypothesis that cystatin C, a novel marker of renal function, is elevated in rheumatoidarthritis (RA) and associated with inflammation and coronary atherosclerosis. We measured serum cystatin C, creatinine, TNF-α and IL-6 concentrations, coronary artery calcium score (CACS), and Modified Diet in Renal Disease estimated GFR (MDRD-eGFR) in 167 patients with RA and 91 controls. Cystatin C was higher in RA (median [IQR]: 1.16 [0.99–1.35] mg/L) than controls (1.01 [0.90–1.19] mg/L), (P<0.001) and positively correlated with ESR (P<0.001), CRP (P=0.01), DAS28 (P=0.006), and Framingham risk score (FRS)(P=0.02). Cystatin C was correlated with CACS (P<0.001) in RA, but this was not significant after adjustment for age, race, sex and FRS (P =0.44). Cystatin C concentrations are higher in RA than controls and may reflect inflammation and undetected subclinical renal dysfunction. Cystatin C provides information regarding the risk of atherosclerosis in RA, but this is linked to conventional cardiovascular risk factors.
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