抗氧化能力在类风湿性关节炎患者中的临床意义及与疾病活动的关系

目的探讨抗氧化能力在类风湿性关节炎(RA)发病机制及疾病进展中的作用。方法选取RA患者91例作为病例组,根据RA疾病活动性评分(DAS 28)将病例组分为低活动组和中高活动组,健康体检者70例作为健康对照组,并记录相关临床及实验室指标。检测血清总抗氧化状态(TAS)和超氧化物歧化酶(SOD)水平,并分析其与RA各项临床及实验室指标的相关性。应用SPSS 17.0进行统计学分析。结果 RA组中高活动组TAS、SOD水平显著低于低活动组及健康对照组,低活动组TAS、SOD水平显著低于健康对照组,差异有统计学意义(P0.05)。RA患者血清TAS、SOD水平与类风湿因子(RF)、压痛关节数(TJC)、肿胀关节数(SJC)、C-反应蛋白(CRP)、红细胞沉降率(ESR)、DAS 28呈负相关(P0.05)。结论氧化应激参与RA的致病过程,血清抗氧化标志物SOD和TAS水平与疾病活动性相关可用于RA辅助诊断和疗效观察。     

Regulatory and other rheumatoid factors in rheumatoid arthritis patients with active disease or in remission

BackgroundPreviously, we identified a regulatory rheumatoid factor (regRF), the production of which provides rats with resistance to collagen‐induced arthritis (CIA). Immunization with conformers of IgG Fc fragments carrying epitopes specific to regRF reduces symptoms of CIA. The aim of this study was to determine whether there is a link between regRF levels and rheumatoid arthritis (RA) activity in humans in order to assess the potential of regRF as a therapeutic biotarget in RA. The variability of rheumatoid factor (RF) specificities present in the blood of RA patients was also studied.MethodsThe regRF were studied in RA patients with active disease and in remission. Variability in the specificities of RF associated with RA was studied by concurrent inhibition of RF latex fixation by variants of modified IgG.ResultsPatients in remission had regRF levels higher than in healthy subjects. The regRF in remission was characterized by tight binding to its antigen, as in healthy subjects. The regRF levels in patients with active RA varied dramatically, and regRF binding to its antigen was weak. The exacerbation of Still''s disease coincided with low regRF levels and affinity, while an improvement in patient condition was associated with an increase in regRF levels and affinity. The RF specific to RA, which was detected by the RF latex‐fixation method, was a nonhomogeneous population of antibodies that included RF to lyophilized IgG, to IgG immobilized on polystyrene, and to rabbit IgG.ConclusionStimulating regRF production might enable improved RA therapy.     

肌肉骨骼超声对类风湿关节炎疾病活动度的评估价值

目的探索肌肉骨骼超声对类风湿关节炎疾病活动度的评估价值。方法以2018年2月14日至2020年2月21日收治的172例疑似类风湿关节炎患者为研究对象,以病理诊断为金标准将患者分为类风湿关节炎组(阳性组,86例)和非类风湿关节炎组(阴性组,86例),均进行肌肉骨骼超声检查。分析肌肉骨骼超声的诊断效能。结果阳性组的血流信号分级总异常率显著高于阴性组(P<0.05)。高度活动障碍组的血流信号分级高于轻度活动障碍组、中度活动障碍组,滑膜厚度厚于轻度活动障碍组、中度活动障碍组(P<0.05)。肌肉骨骼超声对关节积液诊断准确率为95.24%,对滑膜肥厚/增生诊断准确率为96.15%。肌肉骨骼超声诊断的灵敏度、特异度、漏诊率、误诊率分别为96.51%、97.67%、3.49%、2.33%。结论在评估类风湿关节炎疾病活动度时,应用肌肉骨骼超声检查可提高诊断的准确率。     

Calprotectin levels in rheumatoid arthritis and their correlation with disease activity: a meta-analysis

Objective: We evaluated the relationship between calprotectin levels and rheumatoid arthritis (RA), and the correlation between plasma/serum calprotectin and RA activity.

Methods: We searched PUBMED, EMBASE, and Cochrane databases and performed meta-analyses comparing plasma/serum or synovial fluid calprotectin levels in RA patients and controls, and correlation coefficients between calprotectin levels and disease activity for 28 joints (DAS28) as well as C-reactive protein (CRP) in RA patients.

Results: Sixteen studies including 849 RA patients and 266 controls were available for meta-analysis. Meta-analysis showed that calprotectin levels were significantly higher in the RA group than in the control group (SMD = 2.337, 95% CI = 1.544–3.130, p < 1.0 × 10^–8). Stratification by rheumatoid factor (RF) status revealed significantly elevated calprotectin levels in the RF-positive RA group compared to that of the RF-negative RA group (SMD = 0.574, 95% CI = 0.345–0.804, p = 9.2 × 10^–7). Meta-analysis of correlation coefficients identified a significant positive correlation between calprotectin levels and CRP or DAS28 (correlation coefficient for CRP = 0.566, 95% CI = 0.512–0.615, p < 1.0 × 10^–8; correlation coefficient for DAS28 = 0.438, 95% CI = 0.269–0.518, p = 2.5 × 10^–6). Calprotectin levels in synovial fluid were significantly higher in the RA group than in the control group (SMD = 2.891, 95% CI = 1.067–4.715, p = 0.002).

Conclusions: Our meta-analysis demonstrates that circulating and synovial fluid calprotectin levels are high in patients with RA, and that circulating calprotectin levels positively correlate with RA activity.     

疾病活动性指标对评估英夫利昔单抗治疗类风湿关节炎早期疗效的作用

目的探讨疾病活动性指标对评估英夫利昔单抗（IFX）治疗中重度活动性类风湿关节炎（RA）患者早期疗效的作用。方法14例中重度活动性RA患者初次接受IFX200mg滴注,分别于0h（基线）,滴注后3h,6h、24h、3d、7d和14d进行疾病活动性指标评估。主要指标：肿胀关节数目（SJC）、触痛关节数目（TJC）、血清C-反应蛋白（CRP）、血沉（ESR）、疾病活动指数（DAS）28-CRP、健康评估问卷（HAQ）和类风湿因子（RF）。结果SJC、TJC、CRP、ESR、DAS28-CRP、HAQ及RF等指标均在治疗第14天时明显改善,其中TJC在治疗3d后开始减少,SJC和HAQ在治疗7d后改善,CRP和DAS28-CRP于滴注后6h即开始下降。CRP在3d时达到低谷,7d后逐渐回升,14d时仍低于基线水平。结论CRP和DAS28-CRP是反映IFX治疗RA早期疗效的最敏感指标,可作为IFX早期疗效的预测因素。     

C-反应蛋白与类风湿关节炎疾病活动度的相关性研究

目的探讨C-反应蛋白(CRP)与类风湿关节炎疾病活动度的相关性。方法选择112例类风湿关节炎患者为观察组,其中62例为活动期患者,50例为非活动期患者,同时选择50例健康者为对照组,比较两组超敏C-反应蛋白(hs-CRP)、抗环瓜氨酸肽抗体(抗CCP)、类风湿因子(RF)及红细胞沉降率(ESR)的差别。结果观察组患者hs-CRP、抗CCP、RF及ESR水平明显高于对照组(P<0.01),活动期患者上述检测指标明显高于非活动期患者(P<0.01);观察组患者hs-CRP、抗CCP、RF与ESR显著相关(P<0.05)。结论 hs-CRP可作为类风湿关节炎疾病活动期的敏感指标之一,与抗CCP、RF及ESR联合检测对病情有预测价值。     

Framingham评分预测关节型银屑病患者心血管疾病风险及危险因素分析

目的应用Framingham评分预测关节型银屑病(PsA)患者未来10年心血管疾病的患病风险,并明确PsA患者未来10年发生心血管疾病的相关危险因素。方法选取2014年1月至2018年12月该院皮肤科收治的PsA患者112例作为观察组;选取同期体检健康人群(性别、年龄等相匹配)68例作为对照组。比较2组一般资料和总胆固醇(TC)、三酰甘油(TG)、血尿酸(UA)等生化指标;应用Framingham评分预测PsA患者未来10年发生心血管疾病的患病风险,Pearson相关分析、Logistic回归分析评估PsA患者发生心血管疾病的相关因素和危险因素。结果观察组男性多于女性(男∶女=1.29∶1);初发关节炎发病年龄为(48.18±13.24)岁;患者皮损中位病程和关节炎中位病程分别为13.1(11.6,14.6)年和4.5(3.0,6.0)年;观察组患者收缩压、吸烟史、既往史、TG、UA明显高于对照组(P<0.05),高密度脂蛋白胆固醇(HDL-C)明显低于对照组(P<0.05);TC、低密度脂蛋白胆固醇(LDL-C)、临床用药2组之间差异无统计学意义(P>0.05)。观察组和对照组患者Framingham评分结果分别为18.0(16.0,20.0)分、6.0(4.0,7.0)分,且Mann-Whitney检验证实2组之间差异有统计学意义(P<0.05)。10年Framingham评分与性别、年龄、初发年龄、TG、UA相关(P<0.05),且年龄、既往史、TG、UA是PsA患者发生心血管事件的独立危险因素(P<0.05)。结论PsA患者心血管疾病患病风险高,关注患者年龄、是否伴有高血压和糖尿病及定期监测TG、UA可有效评估患者发生心血管疾病的患病风险。     

Serum progranulin level is associated with disease activity following orthopedic surgery in rheumatoid arthritis patients

BackgroundFew studies have focused on the ability of progranulin to predict postoperative disease activity in rheumatoid arthritis (RA) patients who have undergone surgery. This study evaluated serum progranulin levels in active RA patients and analyzed its relationship with postoperative disease activity.MethodsOne hundred thirty-two patients with active RA and 72 healthy subjects were included in this study. Serum progranulin was measured, and clinical data were collected. The postoperative 1-year Disease Activity Score in 28 joints calculated with C-reactive protein (DAS28-CRP) scores was evaluated as an indicator of disease activity. The predictive value of progranulin in postoperative 1-year disease activity in RA patients was also analyzed.ResultsSerum progranulin was significantly associated with the postoperative 1-year RA disease activity. The mean serum progranulin level in patients with a high disease activity was significantly higher than that of RA patients with low-to-moderate disease activity (54.2 ± 10.6 ng/mL vs. 46.7 ± 8.8 ng/mL). Serum progranulin was also evaluated as an independent predictive factor for postoperative 1-year RA disease activity in multivariate analysis (odds ratio [OR], 2.21; 95% confidence interval [CI], 1.02–8.85).ConclusionsSerum progranulin levels may be a promising indicator of postoperative disease activity in RA patients who underwent orthopedic surgery.     

不同运动方式对慢性肾脏病患者肾功能及心血管疾病相关危险因素的影响

目的:探究有氧运动和有氧运动联合抗阻训练对慢性肾脏病(CKD)患者肾功能及心血管疾病相关危险因素的影响。方法:87例CKD患者随机分为对照组(n=29)、有氧运动组(n=29)和有氧联合抗阻训练组(n=29)。有氧运动组以50%峰值摄氧量(VO2peak)踏功率自行车,每次30min。有氧联合抗阻训练组先以50%VO2peak踏功率自行车30min,再进行弹力带抗阻训练。两组运动周期均为每周3次,共12周。比较三组间运动前后肾小球滤过率(e GFR)、血肌酐(SCr)、血尿素氮(SBUN)、24h尿蛋白定量(24UP)、收缩压(SBP)、舒张压(DBP)、静息心率(RHR)、甘油三酯(TG)、总胆固醇(TC)和低密度脂蛋白(LDL-C)的差异。结果:运动前三组间各指标均无显著差异(P0.05);运动后,与对照组相比运动组在e GFR、SCr、SBUN、24UP、SBP、DBP、RHR、TG、TC和LDL-C均有显著改善(P0.05);且运动后,与有氧运动组相比有氧联合抗阻训练组在TG、TC、和LDL-C改善更明显(P0.05)。结论:单纯有氧运动和有氧运动联合抗阻训练对CKD患者肾功能及心血管疾病相关危险因素均有改善作用,且与单纯有氧运动相比有氧运动联合抗阻训练对CKD患者的血脂改善效果更好。     

补体C1q与类风湿关节炎活动度相关性研究

目的探讨血清补体C1q水平在类风湿关节炎(RA)活动度中的应用价值。方法收集160例RA患者(RA活动组110例,RA缓解组50例)和30例健康体检人群(健康对照组)的外周静脉血,测定其血清补体C1q水平,同时检测与RA疾病活动度相关指标红细胞沉降率(ESR)、C反应蛋白(CRP)、类风湿因子(RF)及环瓜氨酸肽(CCP)的表达,采用SPSS19.0软件进行比较分析。结果 RA活动组C1q、ESR、CRP水平高于RA缓解组和健康对照组,差异有统计学意义(P0.05),而RA缓解组与健康对照组C1q水平差异无统计学意义(P0.05),ESR、CRP与C1q比较,差异无统计学意义(P0.05);RA活动组RF阳性率高于RA缓解组和健康对照组,差异有统计学意义(P0.05),CCP阳性率高于健康对照组,但与RA缓解组比较,差异无统计学意义(P0.05),C1q与RF比较差异无统计学意义(P0.05),而与CCP比较差异有统计学意义(P0.05);C1q、ESR、CRP、RF与28-类风湿关节炎疾病活动分数(DAS28)呈显著相关(P0.05),CCP与DAS28无显著相关。结论补体C1q与RA活动度呈显著相关,可作为评价RA活动度的指标。     

Genetic variant in microRNA-146a gene is associated with risk of rheumatoid arthritis

ObjectiveTo investigated the association between single nucleotide polymorphisms (SNPs) in microRNA-146a (miR-146a) gene and susceptibility of rheumatoid arthritis (RA).MethodsWe systemically extracted the genetic data of miR-146a from previous genome-wide association studies (GWASs) of RA. Subsequently, we performed a replication study in an independent Chinese cohort for selected variant. A meta-analysis combined the previous GWASs with the replication study was also conducted. The epigenetic annotation and cytokine assay were used for exploring potential variant function.ResultsThe extracted genetic association data from three previous GWASs showed that the allele T of functional SNP rs2431697 increased RA susceptibility. The significant association for the SNP was also found in the Chinese replication cohort (OR = 1.24, 95% CI = 1.06–1.46, p = 8.69E-03). The estimated effect size for this SNP was larger in Asian population than that in European population (Asian meta-analysis: OR = 1.15, 95% CI = 1.09–1.22, p = 4.37E-07; Tran-ethnic meta-analysis: OR = 1.07, 95% CI = 1.04–1.10, p = 1.79E-06). The cytokine assay also showed that the risk allele T of the SNP rs2431697 is inversely associated with plasma TNF-α levels in health controls (p = .016).ConclusionsIn summary, this study supports that genetic variant in miR-146a gene is associated with RA risk.

KEY MESSAGES

1. The association between SNPs in miR-146a gene and susceptibility of RA was unclear.
2. We investigated the genetic association using GWASs data and a replication study.
3. The SNP rs2431697 in miR-146a gene is associated with RA risk.

     

类风湿关节炎患者肺部感染的临床特点及其危险因素分析

目的 探讨类风湿关节炎（rheumatoid arthritis, RA）患者合并肺部感染的临床特点及危险因素。方法 回顾性研究合并肺部感染RA住院患者52例和未合并感染RA住院患者200例临床资料,其中严重感染21例,分析RA合并肺部感染及肺部严重感染的临床特点及危险因素。结果 RA患者中合并肺部感染52例,痰培养送检阳性率为36.54%,检出25株病原菌,其中细菌10株,支原体3株,真菌12株;肺部感染相关危险因素分析提示年龄＞60岁、病程≥10年、吸烟、慢性肺疾病、激素治疗为独立危险因素,抗风湿药物（DMARDs）治疗为保护因素。肺部严重感染相关危险因素分析提示病程≥10年、吸烟、慢性肺疾病、激素治疗、补体C4降低为独立危险因素,DMARDs治疗为保护因素。结论 RA患者肺部感染的致病菌主要是真菌和细菌,当RA患者病程≥10年、吸烟、合并慢性肺疾病、激素治疗、补体C4降低时应注意肺部严重感染风险,DMARDs治疗可以降低RA患者肺部感染的风险。     

Serum levels of interleukin-6 and tumour-necrosis-factor-alpha are not correlated to disease activity in patients with rheumatoid arthritis after treatment with low-dose methotrexate

Abstract. Cytokines are major mediators of inflammatory responses in rheumatoid arthritis. Some of them have been shown to correlate with the disease activity and thus are proposed to be used for monitoring patients. Therefore the effects of a low-dose therapy with methotrexate on serum concentrations of interleukin-6 (IL-6) and tumour-necrosis-factor-alpha (TNF-α) were examined in eight patients with seropositive rheumatoid arthritis. Serum levels of IL-6 and TNF-α were significantly elevated in patients compared to healthy controls. Before the onset of MTX treatment IL-6 concentrations were correlated to the c-reactive protein ( P < 0·05) but the correlation was abolished after treatment. For TNF-α no correlations neither before nor after treatment were observed. Both cytokines remained substantially elevated after MTX treatment despite a clear reduction in disease activity. Thus we suggest that one of the effects of MTX might be the inhibition of some of the actions of IL-6 and TNF-α.     

活动期类风湿关节炎患者血脂与疾病活动度的相关性分析

目的 观察活动期类风湿关节炎(RA)患者的血脂特征及动脉硬化指数(AI),分析血脂水平与疾病活动度之间的相关性.方法 选择活动期RA患者51例,健康体检者52例为对照组,对血脂水平进行分析,包括血清总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)和低密度脂蛋白胆固醇(LDL-C),并计算AI.记录其疾病活动性指标,包括血沉(ESR)、C反应蛋白(CRP)和28个关节疾病活动度评分(DAS 28).对血脂水平与疾病活动度进行相关性分析.结果 与对照组比较,活动期RA组TC、TG、LDL-C及AI升高,分别为(6.08±1.36) mmol/Lvs (4.77±1.39) mmol/L、(2.41±1.28) mmol/L vs (1.42±0.83) mmol/L、(3.87±1.08) mmol/L vs (3.33土1.39) mmol/L及(5.12±1.78) vs (3.02±1.60);HDL-C水平降低,为(1.05±0.29) mmol/L vs (1.31±0.44)mmol/L(P＜0.01或＜0.05).活动期RA患者DAS 28评分与TC(r =0.386,P＜0.05)、LDL-C(r=0.444,P＜0.01)和AI(r =0.793,P＜0.01)呈正相关,与HDL-C呈负相关(r=-0.503,P＜0.01),与TG无相关性.结论 活动期RA患者血脂水平异常且与疾病活动度相关,对血脂进行干预可能改善RA患者的长期预后.     

类风湿关节炎合并活动性肺结核病的临床特征及相关因素分析

目的 分析类风湿关节炎(RA)合并活动性肺结核病的临床特征以及相关危险因素.方法 回顾分析41例RA合并活动性肺结核住院患者临床资料,按照年龄、性别1:1匹配选择同期无RA及其他风湿疾病的活动性肺结核住院患者进行临床特征分析,随机选取101例无活动性肺结核及其他病原体感染的RA同期住院患者进行相关因素分析,所有患者均有...     

A novel CD209 polymorphism is associated with rheumatoid arthritis patients in Taiwan

Single nucleotide polymorphisms (SNPs) in the promoter region of CD209 (cluster of differentiation 209) may influence expression levels, and higher expression of CD209 on immune cells correlate with severity of cartilage destruction in patients with rheumatoid arthritis (RA). Due to the lack of a comprehensive study, this study aimed to investigate the CD209 promoter variants and haplotypes in a Taiwanese population and the association with RA development. Deoxyribonucleic acid (DNA) of peripheral blood mononuclear cells from 126 RA patients and 124 healthy controls was purified, and the CD209 gene promoter was amplified by polymerase chain reaction and analyzed by Sanger sequencing. Results showed that a novel variant −96C>A polymorphism in CD209 promoter was identified in the Taiwanese population, and the frequency was significantly higher in RA patients than in controls (11.51% vs. 2.42%, P < .0001). The odds ratio (OR) for the development of RA was 5.88 (95% CI 2.35–14.74, P < .0001). Other known variants were also evaluated; for instance, −1180 T/T (rs7359874) was increased in RA patients, and the OR for the development of RA was 3.26, 95% CI 0.85–12.52, P = .07). Besides, the haplotype frequencies were calculated; −1180A‐939C‐871 T‐336 T‐139 T‐96A and −1180 T‐939 T‐871C‐336 T‐139C‐96A were increased in RA patients (P = .004 and 0.05, respectively). In summary, CD209‐96A variant could be an important factor for the development of RA in the Taiwanese population.