血液透析患者输血传播肝相关病毒感染的调查

使用PCR结合微板杂交-ELtSA及DNA序列分析技术,分别研究了维持性血液透析患者输血传播性HBV、HCV、HDV、HGV、TTV感染状况,并对HBV、TTV进行基因分型、TTV基因变异状况进行分析。除HDV外,发现血液透析患者中存在多重感染。HBV基因型以C型为主,B型次之。TTV分离株中,G1型为主,G2型次之。TTV基因变异可达39．7％。     

血液透析患者输血传播肝相关病毒感染的调查

使用PCR结合微板杂交-ELISA及DNA序列分析技术,分别研究了维持性血液透析患者输血传播性HBV、HCV、HDV、HGV、TTV感染状况,并对HBV、TTV进行基因分型、TTV基因变异状况进行分析.除HDV外,发现血液透析患者中存在多重感染.HBV基因型以C型为主,B型次之.TTV分离株中,G1型为主,G2型次之.TTV基因变异可达39.7%.     

Duodenal Ferroportin Is Up-Regulated in Patients with Chronic Hepatitis C

Hepatitis C virus (HCV) infection is a leading cause of liver-related mortality. Chronic hepatitis C (CHC) is frequently associated with disturbances in iron homeostasis, with serum iron and hepatic iron stores being elevated. Accumulating evidence indicates that chronic HCV infection suppresses expression of hepatic hepcidin, a key mediator of iron homeostasis, leading to iron overload conditions. Since hepcidin mediates degradation of ferroportin, a basolateral transporter involved in the release of iron from cells, diminished hepcidin expression probably leads to up-regulation of ferroportin-1 (Fpn1) in patients with CHC. In this study, we determined the protein levels of duodenal Fpn1, and found that its expression was significantly up-regulated in patients with CHC. The expression of duodenal Fpn1 is negatively correlated with mRNA levels of hepcidin, and positively correlated with serum iron parameters. Although iron is a critical factor for growth of a variety of pathogenic bacteria, our results suggest that iron overload in blood does not increase the infection rate of bacteria in patients with CHC.     

慢性丙型肝炎患者中丙型肝炎病毒准种变异研究进展

丙型肝炎病毒（HCV）具有较高的变异性,通常以准种的形式分布在感染者的体内,病毒容易逃离机体的免疫监控,因而无法被有效地清除,导致机体很难控制其感染的发展,故易转变成慢性肝炎。HCV准种变异在宿主体内的持续存在对病毒感染的控制、抗病毒药物和疫苗的发展都是一个巨大的挑战。,我们重点阐述近年来关于HCV准种变异及其与慢性丙型肝炎患者的机体免疫、疾病进展、治疗效果之间关系的研究进展。     

甲状旁腺激素水平对慢性肾衰竭患者维持性血液透析期间机体营养的影响

目的:探讨慢性肾衰竭(CRF)维持性血液透析患者血清甲状旁腺激素(PTH)水平与机体营养状况的关系。方法:选择2013年8月-2015年10月我院收治的慢性肾衰竭行维持性血液透析治疗的患者98例作为研究组,另选择同期接受健康体检的志愿者69例作为对照组。采用放射免疫法检测两组患者血清甲状旁腺激素(PTH)及血清学指标。采用微型营养评定法(MNA)评价两组患者营养状况;利用Spearman相关分析方法评价血清PTH与相关血清生化指标的相关性。结果:研究组营养不良发生率(31.63%)明显高于对照组(13.04%),差异具有统计学意义(P0.05)。研究组营养不良患者血清PTH,HDL-C,LDL-C,CRP,BUN及SCr水平均高于潜在营养不良和营养正常者,而血清TP,ALB,TC,TG及Hb均低于潜在营养不良和营养正常者(P0.05)。潜在营养不良患者血清PTH,HDL-C,LDL-C,CRP,BUN及SCr水平均高于营养正常者,而血清TP,ALB,TC,TG及Hb均低于营养正常者(P0.05)。慢性肾衰竭患者血清PTH与MNA,TP,TC,TG,CRP以及Hb呈负相关关系(P0.05);与BUN,SCr呈正相关关系(P0.05);与ALB,HDL-C,LDL-C无明显相关性(P0.05)。结论:CRF患者并发营养不良的发生率较高,血清PTH水平与机体营养状况存在一定相关性,临床应予以重视。     

常规血液透析和维持性血液透析对尿毒症患者心脏结构 及功能影响的对比研究

目的：采用超声联合心电图比较常规血液透析和维持性血液透析对尿毒症患者心脏结构及功能影响。方法：选取2014 年2 月至2014 年11 月我院收治的尿毒症患者110 例,将其随机分为实验组和对照组,每组各55例。对照组予常规血液透析,实验组 予维持性血液透析,采用碳酸氢盐透析液,透析液流量500-600 mL/min,每周透析2-3 次,每次透析4h。治疗后,通过超声心动图 测定室间隔厚度、左心室壁厚度、左心室舒张末内径、射血分数,采用心电图Q-T离散度分析Q-T离散度。结果：①治疗后,与对照 组相比较,实验组患者EF、FS 均显著降低,差异具有统计学意义(P＜0.05),LVDd、LVDs、LVMI、LVH 值均明显升高,差异具有统 计学意义(P＜0.05)。②治疗后,维持性血液透析患者的心电图Q-T 离散度与对照组相比较,差异有统计学意义(P＜0.05)。结论：维 持性血液透析较常规血液透析能够更有效地改善尿毒症患者的心脏结构及功能。     

高通量血液透析与血液透析滤过在慢性肾功能衰竭患者中的疗效对比

目的:探讨高通量血液透析与血液透析滤过在慢性肾功能患者中的疗效。方法:选取2007年3月～2010年6月在我院进行维持性血液透析患者52例并随机分为2组:高通量透析(HPD()n=26)和血液透析滤过(HDF)组(n=26)。两组患者均每周透析2次,每次4h,对两组患者进行1年临床观察。比较两组治疗前、后尿毒症患者血肌酐、β2-微球蛋白(β2-MG)、血磷、PTH的清除作用及对血脂的影响。结果:两组患者KT/V及透析前后血BUN、Cr的下降率无显著性差异。HDF组透析1年后β2-MG较透析前增高(5.17±15.09)%,HPD组透析1年后β2-MG较透析前下降(12.32±3.2 7)%,P<0.0 1。HDF组透析1年后甲状旁腺激素较透析前增高(6.59±14.13)%,HPD组透析1年后甲状旁腺激素较透析前下降(19.07±5.27)%,P<0.01。HPD、HDF两组血磷下降率分别为(56.4 4±14.83)%、(43.94±17.96)%,P<0.05,HDF组患者透析1年后其血清甘油三酯(TG)水平相比于透析前血清TG水平上升了(22.4 2±9.52)%,HPD组1年后TG较透析前下降(2 3.81±9.93)%,P<0.05。结论:高通量血液透析能有效清除β2-MG、甲状旁腺激素、对血磷的清除效果也优于血液透析滤过,对血脂代谢也有显著改善作用。     

高通量血液透析与血液透析滤过在慢性肾功能衰竭患者中的疗效对比

目的：探讨高通量血液透析与血液透析滤过在慢性肾功能患者中的疗效。方法：选取2007年3月~2010年6月在我院进行维持性血液透析患者52例并随机分为2组：高通量透析（HPD）（n=26）和血液透析滤过（HDF）组（n=26）。两组患者均每周透析2次,每次4h,对两组患者进行1年临床观察。比较两组治疗前、后尿毒症患者血肌酐、β2-微球蛋白（β2-MG）、血磷、PTH的清除作用及对血脂的影响。结果：两组患者KT/V及透析前后血BUN、Cr的下降率无显著性差异。HDF组透析1年后β2-MG较透析前增高（5．17±15．09）％,HPD组透析1年后132．MG较透析前下降（12．32±3．27）％,P〈0．01。HDF组透析1年后甲状旁腺激素较透析前增高（6．59±14．13）％,HPD组透析1年后甲状旁腺激素较透析前下降（19．07±5．27）％,P〈0．01。HPD、HDF两组血磷下降率分别为（56．44±14．83）％、（43．94±17．96）％,P〈0．05,HDF组患者透析1年后其血清甘油三酯（TG）水平相比于透析前血清TG水平上升了（22．42±9．52）％,HPD组1年后TG较透析前下降（23．81±9．93）％,P〈0．05。结论：高通量血液透析能有效清除β2-MG、甲状旁腺激素、对血磷的清除效果也优于血液透析滤过,对血脂代谢也有显著改善作用。     

Altered Functionality of Anti-Bacterial Antibodies in Patients with Chronic Hepatitis C Virus Infection

Background

Using comparative glycoproteomics, we have previously identified a glycoprotein that is altered in both amount and glycosylation as a function of liver cirrhosis. The altered glycoprotein is an agalactosylated (G0) immunoglobulin G molecule (IgG) that recognizes the heterophilic alpha-gal epitope. Since the alpha gal epitope is found on gut enterobacteria, it has been hypothesized that anti-gal antibodies are generated as a result of increased bacterial exposure in patients with liver disease.

Methods

The N-linked glycosylation of anti-gal IgG molecules from patients with fibrosis and cirrhosis was determined and the effector function of anti-bacterial antibodies from over 100 patients examined. In addition, markers of microbial exposure were determined.

Results

Surprisingly, the subset of agalactosylated anti-gal antibodies described here, was impaired in their ability to mediate complement mediated lysis and inhibited the complement-mediated destruction of common gut bacteria. In an analysis of serum from more than 100 patients with liver disease, we have shown that those with increased levels of this modified anti-gal antibody had increased levels of markers of bacterial exposure.

Conclusions

Anti-gal antibodies in patients with liver cirrhosis were reduced in their ability to mediate complement mediated lysis of target cells. As bacterial infection is a major complication in patients with cirrhosis and bacterial products such as LPS are thought to play a major role in the development and progression of liver fibrosis, this finding has many clinical implications in the etiology, prognosis and treatment of liver disease.     

Increased Risk of Acute Pancreatitis in Patients with Chronic Hemodialysis: A 4-Year Follow-Up Study

Background

The risk of acute pancreatitis in patients on long-term peritoneal dialysis is higher as compared to the general population. However, the relationship between long-term hemodialysis and acute pancreatitis has never been established.

Objectives

We investigated the incidence of acute pancreatitis among patients on long-term hemodialysis in Taiwan to evaluate if there is a higher risk of acute pancreatitis in comparison to the general population.

Methods

We utilized a National Health Insurance (NHI) claims data sample containing one million beneficiaries. We followed all adult beneficiaries from January 1, 2007 until December 31, 2010 to see if they had been hospitalized for acute pancreatitis during this period. We further identified patients on chronic hemodialysis and compared their risk of acute pancreatitis with the general population.

Results

This study included 2603 patients with long-term hemodialysis and 773,140 patients without hemodialysis. After controlling for age, gender, Charlson Comorbidity Index Score, geographic region, socioeconomic status and urbanization level, the adjusted hazard ratio was 3.44 (95% Confidence interval, 2.5–4.7).

Conclusions

The risk of acute pancreatitis in patients on long-term hemodialysis is significantly higher in comparison to the general population.     

Longitudinal Evaluation of the Structure of Replicating and Circulating Hepatitis C Virus Quasispecies in Nonprogressive Chronic Hepatitis C Patients

In previous cross-sectional studies, we demonstrated that, in most patients with chronic hepatitis C, the composition and complexity of the circulating hepatitis C virus (HCV) population do not coincide with those of the virus replicating in the liver. In the subgroup of patients with similar complexities in both compartments, the ratio of quasispecies complexity in the liver to that in serum (liver/serum complexity ratio) of paired samples correlated with disease stage. In the present study we investigated the dynamic behavior of viral population parameters in consecutive paired liver and serum samples, obtained 3 to 6 years apart, from four chronic hepatitis C patients with persistently normal transaminases and stable liver histology. We sequenced 359 clones of a genomic fragment encompassing the E2(p7)-NS2 junction, in two consecutive liver-serum sample pairs from the four patients and in four intermediate serum samples from one of the patients. The results show that the liver/serum complexity ratio is not stable but rather fluctuates widely over time. Hence, the liver/serum complexity ratio does not identify a particular group of patients but a particular state of the infecting quasispecies. Phylogenetic analysis and signature mutation patterns showed that virtually all circulating sequences originated from sequences present in the liver specimens. The overall behavior of the circulating viral quasispecies appears to originate from changes in the relative replication kinetics of the large mutant spectrum present in the infected liver.     

Longitudinal Liver Stiffness Assessment in Patients with Chronic Hepatitis C Undergoing Antiviral Therapy

Background/Aims

Liver stiffness (LS) measurement by means of transient elastography (TE) is accurate to predict fibrosis stage. The effect of antiviral treatment and virologic response on LS was assessed and compared with untreated patients with chronic hepatitis C (CHC).

Methods

TE was performed at baseline, and at weeks 24, 48, and 72 in 515 patients with CHC.

Results

323 treated (62.7%) and 192 untreated patients (37.3%) were assessed. LS experienced a significant decline in treated patients and remained stable in untreated patients at the end of study (P<0.0001). The decline was significant for patients with baseline LS ≥ 7.1 kPa (P<0.0001 and P 0.03, for LS ≥9.5 and ≥7.1 kPa vs lower values, respectively). Sustained virological responders and relapsers had a significant LS improvement whereas a trend was observed in nonresponders (mean percent change −16%, −10% and −2%, for SVR, RR and NR, respectively, P 0.03 for SVR vs NR). In multivariate analysis, high baseline LS (P<0.0001) and ALT levels, antiviral therapy and non-1 genotype were independent predictors of LS improvement.

Conclusions

LS decreases during and after antiviral treatment in patients with CHC. The decrease is significant in sustained responders and relapsers (particularly in those with high baseline LS) and suggests an improvement in liver damage.     

Effect of Retreatment with Interferon Alone or Interferon plus Ribavirin on Hepatitis C Virus Quasispecies Diversification in Nonresponder Patients with Chronic Hepatitis C

Alpha interferon (IFN-alpha) treatment is effective on a long-term basis in only 15 to 25% of patients with chronic hepatitis C. The results of recent trials indicate that response rates can be significantly increased when IFN-alpha is given in combination with ribavirin. However, a large number of patients do not respond even to combination therapy. Nonresponsiveness to IFN is characterized by evolution of the hepatitis C virus (HCV) quasispecies. Little is known about the changes occurring within the HCV genomes when nonresponder patients are retreated with IFN or with IFN plus ribavirin. In the present study we have examined the genetic divergence of HCV quasispecies during unsuccessful retreatment with IFN or IFN plus ribavirin. Fifteen nonresponder patients with HCV-1 (4 patients with HCV-1a and 11 patients with HCV-1b) infection were studied while being retreated for 2 months (phase 1) with IFN-alpha (6 MU given three times a week), followed by IFN plus ribavirin or IFN alone for an additional 6 months (phase 2). HCV quasispecies diversification in the E2 hypervariable region-1 (HVR1) and in the putative NS5A IFN sensitivity determining region (ISDR) were analyzed for phase 1 and phase 2 by using the heteroduplex tracking assay and clonal frequency analysis techniques. A major finding of this study was the relatively rapid evolution of the HCV quasispecies observed in both treatment groups during the early phase 1 compared to the late phase 2 of treatment. The rate of quasispecies diversification in HVR1 was significantly higher during phase 1 versus phase 2 both in patients who received IFN plus ribavirin (P = 0.017) and in patients who received IFN alone (P = 0. 05). A trend toward higher rates of quasispecies evolution in the ISDR was also observed during phase 1 in both groups, although the results did not reach statistical significance. However, the NS5A quasispecies appeared to be rather homogeneous and stable in most nonresponder patients, suggesting the presence of a single well-fit major variant, resistant to antiviral treatment, in agreement with published data which have identified an IFN sensitivity determinant region within the NS5A. During the entire 8 months of retreatment, there was no difference in the rate of fixation of mutation between patients who received combination therapy and patients who were treated with IFN alone, suggesting that ribavirin had no major effects on the evolution of the HCV quasispecies after the initial 2 months of IFN therapy.     

丙型肝炎病毒准种在NS2区的变异状况初探

探讨HCV准种在NS2区的基因结构特征及变异状况.利用逆转录-巢式PCR从1份HCV慢性携带者的阳性血清及1份丙肝患者的血清中获得HCVNS2全长cDNA,将其克隆于T载体,各随机挑取5个阳性克隆进行序列测定.结果显示克隆到HCVNS2全长基因,所测克隆在核苷酸水平和氨基酸水平互不相同.该慢性携带者HCVNS2区序列以完整读码框架(ORF)为主,一个于HCV多聚蛋白第835位氨基酸的位置出现终止信号,而该丙型肝炎患者以NS2N端发现终止信号的序列为主,其中三个于第835位氨基酸的位置出现终止信号,一个于第887位氨基酸的位置出现终止信号,仅一个克隆的序列为完整ORF.对ORF完整的序列进行比较,发现丙型肝炎患者氨基酸变异主要集中于N端,蛋白二级结构模拟显示丙肝患者NS2与慢性携带者的优势二级结构类似.研究表明从我们选择的两例感染者的HCVNS2序列看,不同临床类型的HCV病人体内的HCV准种在NS2区存在差异,这种差异可能与病毒存在于机体的状态有一定的一致性.     

丙型肝炎病毒准种在NS2区的变异状况初探

探讨HCV准种在NS2区的基因结构特征及变异状况。利用逆转录－巢式PCR从1份HCV慢性携带者的阳性血清及1份丙肝患者的血清中获得HCV NS2全长cDNA,将其克隆于T载体,各随机挑取5个阳性克隆进行序列测定,结果显示克隆到HCV NS2全长基因,所测克隆在核苷酸水平和氨基酸水平互不相同。该慢性携带者HCV NS2区序列以完整读码框架（ORF）为主,一个于HCV多聚蛋白第835位氨基酸的位置出现终止信号,而该丙型肝炎患者以NS2N端发现终止信号的序列为主,其中三个于第835位氨基酸的位置出现终止信号,一个于第887位氨基酸的位置出现终止信号,仅一个克隆的序列为完整ORF。对ORF完整的序列进行比较,发现丙型肝炎患者氨基酸变异主要集中于N端,蛋白二级结构模拟显示丙肝患者NS2与慢性携带者的优势二级结构类似,研究表明从我们选择的两种感染者的HCV NS2序列看,不同临床类型的HCV病人体内的HCV准种在NS2区存在差异,这种差异可能与病毒存在于机体的状态一定的一致性。     

调理脾胃法治疗维持性血透患者营养不良的报告

目的:探讨调理脾胃法治疗维持性血透患者营养不良的效果.方法:40例维持性血透患者随机分为治疗组和对照组,两组在对症处理相同、血透相关因素一致条件下进行维持血透治疗,治疗组同时根据辨证分型服用调理脾胃中药,疗程3个月.结果:与本组治疗前相比较,治疗后的各项生化指标明显提高(P<0.01),蛋白分解率也较治疗前提高(P<0.05),SGA分级好转(P<0.01),临床常见症状体征积分随治疗时间延长呈下降趋势(P(0.05);治疗组与对照组治疗后的各项生化指标、蛋白分解率、SGA分级及临床常见症状体征积分等差异均具有显著性(P<0.05).结论:中药调理脾胃法可以改善维持性血透患者营养不良状况.     

高磷血症维持性血液透析患者的临床分析

目的:比较不同血磷水平的维持性血液透析的尿毒症患者的临床表现和实验室指标,探讨其临床意义。方法:选择上海交通大学医学院附属新华医院(崇明)肾内科28例高血磷(SP>1.6mmol/L)的维持性血液透析患者为病例组,30例血磷正常(SP≤1.6mmol/L)维持性血液透析患者为对照组,比较两组患者的原发病组成,年龄,性别,透析龄,皮肤瘙痒发生率,腰背痛发生率,血钙,血碳酸氢根,血红蛋白,红细胞压积,血碱性磷酸酶,肾功能,血浆白蛋白水平及左心室肥厚发生率。结果:病例组与对照组在原发病组成,年龄(43.2±9.8岁vs 40.5±12.2岁),男女性别比例(16/12 vs.17/13),透析龄(32.56±6.71月vs.35.43±5.82月)等方面无显著性差异(P>0.05),有可比性,在血红蛋白(83.22±6.71g/L vs 103.36±5.84g/L),红细胞压积(24.83±1.92%vs.30.76±1.52%),血钙(1.71±0.16mmol/L vs.2.23±0.21 mmol/L),血碳酸氢根(14.2±3.1mmol/L vs 20.6±4.9 mmol/L),血碱性磷酸酶(124.26±16.33U/L vs.61.47±14.91 U/L),皮肤瘙痒发生率(22/28 vs.7/30),腰背痛发生率(19/28 vs.6/30),左心室肥厚发生率(20/28 vs 12/30),有显著性差异(P<0.05),肌酐(956±142mmol/L vs.923±156 mmol/L),尿素氮(23.1±6.3mmol/L vs.24.8±8.9mmol/L),血浆白蛋白(30.5±3.8g/L vs.31.2±2.9g/L),无显著性差异(P>0.05)。结论:伴有高磷血症的维持性血液透析患者与血磷正常的患者相比,血碱性磷酸酶,皮肤瘙痒发生率,腰背痛发生率及左心室肥厚发生率较高,而血钙,血碳酸氢根,血红蛋白及红细胞压积较低,有一定差异。     

饮食干预联合左卡尼汀治疗维持性血液透析营养不良的疗效观察

目的:研究饮食干预联合左卡尼汀治疗维持性血液透析营养不良的疗效。方法:选取我院2012年1月到2014年1月收治的90例维持性血液透析营养不良患者,随机分为观察组和对照组,每组45例,对照组进行常规的血液透析治疗,观察组在对照组的基础上行饮食干预联合左卡尼汀的治疗,观察并对比两组患者治疗前后的疗效。结果:观察组患者治疗后体重指数(BMI)和体重增幅显著高于对照组,差异均有统计学意义(P均0.05);观察组患者治疗后总蛋白(TP)、前白蛋白(PA)、白蛋白(Alb)显著高于对照组,血肌酐(SCr)、尿素氮(BUN)显著低于对照组,差异均有统计学意义(P均0.05);观察组患者治疗后SGA评分显著高于对照组,差异有统计学意义(P0.05)。结论:饮食干预联合左卡尼汀利于改善维持性血液透析营养不良患者的营养不良的症状,效果显著,值得临床推广。     

高磷血症维持性血液透析患者的临床分析

目的：比较不同血磷水平的维持性血液透析的尿毒症患者的临床表现和实验室指标,探讨其临床意义。方法：选择上海交通大学医学院附属新华医院（崇明）肾内科28例高血磷（SP〉1．6mmol／L）的维持性血液透析患者为病例组,30例血磷正常（SPN1．6mmol／L）维持性血液透析患者为对照组,比较两组患者的原发病组成,年龄,性别,透析龄,皮肤瘙痒发生率,腰背痛发生率,血钙,血碳酸氢根,血红蛋白,红细胞压积,血碱性磷酸酶,肾功能,血浆白蛋白水平及左心室肥厚发生率。结果：病例组与对照组在原发病组成,年龄（43．2±9．8岁VS40．5±12．2岁）,男女性别比例（16／12vs．17／13）,透析龄（32．56±6．71月vs．35．43±5．82月）等方面无显著性差异（P〉o．05）,有可比性,在血红蛋白（83．22±6．71g／Lvs103．36±5．84g/L）,红细胞压积（24．83±1．92％vs．30．76±1．52％）,血钙（1．71±0．16mmol／Lvs．2．23±0．21mmol／L）,血碳酸氢根（14．2±3．1mmol／Lvs20．6±4．9mmol／L）,血碱性磷酸酶（124．26±16．33U／Lvs．61．47±14．91U/L）,皮肤瘙痒发生率（22／28vs．7／30）,腰背痛发生率（19／28vs．6／30）,左心室肥厚发生率（20／28vs12／30）,有显著性差异（P〈0．05）,肌酐（956±142mmol／LVS．923±156mmol／L）,尿素氮（23．1±6．3mmol／LVS．24．8±8．9retool／L）,血浆白蛋白（30．5±3．8g/Lvs．31．2±2．9g/L）,无显著性差异（P〉0．05）。结论：伴有高磷血症的维持性血液透析患者与血磷正常的患者相比,血碱性磷酸酶,皮肤瘙痒发生率,腰背痛发生率及左心室肥厚发生率较高,而血钙,血碳酸氢根,血红蛋白及红细胞压积较低,有一定差异。     

维持性血液透析患者血清sTWEAK水平与冠状动脉钙化的相关性研究

目的:探讨维持性血液透析患者血清可溶性肿瘤坏死因子样凋亡微弱诱导剂(s TWEAK)水平与冠状动脉钙化的关系。方法:选择维持性血液透析患者60例和健康对照组30例,采用双抗体夹心酶联免疫吸附技术测定其血清s TWEAK水平,采用多层螺旋CT(MSCT)测定其冠状动脉钙化积分(CACs),比较两组的血清s TWEAK水平、CACs,并分析二者的相关性及血液透析患者冠状动脉钙化的危险因素。结果:血液透析患者血清s TWEAK水平显著低于正常对照组,分别为186.23(148.35,220.74)pg/m L和265.13(210.91,298.22)pg/m L,差异有统计学意义(P<0.01)。CACs>400的血液透析患者血清s TWEAK水平显著高于CACs≤400者,分别为220.73(189.70,251.67)pg/m L和146.07(138.43,180.11)pg/m L,差异有统计学意义(P<0.01)。Spearman等级相关分析显示血液透析患者的血清s TWEAK水平与患者的CACs呈明显正相关(r=0.482,P<0.01)。多因素逐步回归分析显示影响血液透析患者CACs严重程度的因素有血清s TWEAK水平、年龄、透析龄、糖尿病(P<0.05)。结论:维持性血液透析患者血清s TWEAK水平较正常人降低,但在血液透析患者s TWEAK范围内,高水平的血清s TWEAK水平与重度冠状动脉钙化相关;血清s TWEAK可能参与了血液透析患者冠状动脉钙化的发生、发展。