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Correlations between serum kidney injury molecule-1,cystatin C and immunosuppressants:A cross-sectional study of renal transplant patients in Bahrain
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作者 Kannan Sridharan Shamik Shah +6 位作者 Mona Al Hammad Fatima Ali Mohammed Sindhan Veeramuthu Mona Abdulla Taher Mustafa Mohamed Hammad Lamees Jawad Eman Farid 《Journal of Biomedical Research》 CAS CSCD 2024年第3期269-277,共9页
Renal transplant patients receive several immunosuppressive drug regimens that are potentially nephrotoxic for treatment.Serum creatinine is the standard for monitoring kidney function;however,cystatin C(Cys C)and kid... Renal transplant patients receive several immunosuppressive drug regimens that are potentially nephrotoxic for treatment.Serum creatinine is the standard for monitoring kidney function;however,cystatin C(Cys C)and kidney injury molecule-1(KIM-1)have been found to indicate kidney injury earlier than serum creatinine and provide a better reflection of kidney function.Here,we assessed Cys C and KIM-1 serum levels in renal transplant patients receiving mycophenolate mofetil,tacrolimus,sirolimus,everolimus,or cyclosporine to evaluate kidney function.We used both the Chronic Kidney Disease Epidemiology Collaboration(CKD-EPI)2021 equation,which is based on creatinine and combined creatinine with Cys C,and the CKD-EPI 2012 equation,which is based on Cys C alone,to estimate glomerular filtration rate(GFR).Then,we assessed the association between serum KIM-1 and GFR<90 mL per minute per 1.73 m2.We observed significantly higher serum Cys C levels in patients with the elevated serum creatinine,compared with those with normal serum creatinine.The estimated GFRs based on creatinine were significantly higher than those based on the other equations,while a significant positive correlation was observed among all equations.Serum KIM-1 levels were negatively correlated with the estimated GFRs by the CKD-EPI Cys C and the combined creatinine with Cys C equations.A serum KIM-1 level above 0.71 ng/mL is likely to indicate GFR<90 mL per minute per 1.73 m2.We observed a significant correlation between serum creatinine and Cys C in our renal transplant patients.Therefore,serum KIM-1 may be used to monitor renal function when using potentially nephrotoxic drugs in renal transplants. 展开更多
关键词 KIM-1 cystatin C mycophenolate mofetil TACROLIMUS EVEROLIMUS SIROLIMUS CYCLOSPORINE
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Evaluating new biomarkers for diabetic nephropathy:Role ofα2-macroglobulin,podocalyxin,α-L-fucosidase,retinol-binding protein-4,and cystatin C
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作者 Jing-Jing Li Ru-La Sa +1 位作者 Yu Zhang Zhao-Li Yan 《World Journal of Diabetes》 SCIE 2024年第6期1212-1225,共14页
BACKGROUND The intricate relationship between type 2 diabetes mellitus(T2DM)and diabetic nephropathy(DN)presents a challenge in understanding the significance of various biomarkers in diagnosis.AIM To elucidate the ro... BACKGROUND The intricate relationship between type 2 diabetes mellitus(T2DM)and diabetic nephropathy(DN)presents a challenge in understanding the significance of various biomarkers in diagnosis.AIM To elucidate the roles and diagnostic values ofα2-macroglobulin(α2-MG),podocalyxin(PCX),α-L-fucosidase(AFU),retinol-binding protein-4(RBP-4),and cystatin C(CysC)in DN.METHODS From December 2018 to December 2020,203 T2DM patients were enrolled in the study.Of these,115 were diagnosed with DN(115 patients),while the remaining 88 patients were classified as non-DN.The urinary levels ofα2-MG,PCX,and AFU and the serum concentrations RBP-4 and CysC were measured in conjunction with other relevant clinical indicators to evaluate their potential correlations and diagnostic utility.RESULTS After adjustments for age and gender,significant positive correlations were observed between the biomarkers CysC,RBP-4,α2-MG/urinary creatinine(UCr),PCX/UCr,and AFU/UCr,and clinical indicators such as urinary albumin-to-creatinine ratio(UACR),serum creatinine,urea,24-h total urine protein,and neutrophil-to-lymphocyte ratio(NLR).Conversely,these biomarkers exhibited negative correlations with the estimated glomerular filtration rate(P<0.05).Receiver operating characteristic(ROC)curve analysis further demonstrated the diagnostic performance of these biomarkers,with UACR showcasing the highest area under the ROC curve(AUC^(ROC))at 0.97.CONCLUSION This study underscores the diagnostic significance ofα2-MG,PCX,and AFU in the development of DN.The biomarkers RBP-4,CysC,PCX,AFU,andα2-MG provide promising diagnostic insights,while UACR is the most potent diagnostic biomarker in assessing DN. 展开更多
关键词 Α2-MACROGLOBULIN Podocalysin Α-L-FUCOSIDASE Retinol binding protein-4 Cystatin C Diabetic nephropathy
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Serum cystatin C,monocyte/high-density lipoprotein-C ratio,and uric acid for the diagnosis of coronary heart disease and heart failure
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作者 Ming Li Da-Hao Yuan +2 位作者 Zhi Yang Teng-Xiang Luw Xiao-Biao Zou 《World Journal of Clinical Cases》 SCIE 2024年第18期3461-3467,共7页
BACKGROUND Coronary heart disease(CHD)and heart failure(HF)are the major causes of morbidity and mortality worldwide.Early and accurate diagnoses of CHD and HF are essential for optimal management and prognosis.Howeve... BACKGROUND Coronary heart disease(CHD)and heart failure(HF)are the major causes of morbidity and mortality worldwide.Early and accurate diagnoses of CHD and HF are essential for optimal management and prognosis.However,conventional diagnostic methods such as electrocardiography,echocardiography,and cardiac biomarkers have certain limitations,such as low sensitivity,specificity,availability,and cost-effectiveness.Therefore,there is a need for simple,noninvasive,and reliable biomarkers to diagnose CHD and HF.AIM To investigate serum cystatin C(Cys-C),monocyte/high-density lipoprotein cholesterol ratio(MHR),and uric acid(UA)diagnostic values for CHD and HF.METHODS We enrolled 80 patients with suspected CHD or HF who were admitted to our hospital between July 2022 and July 2023.The patients were divided into CHD(n=20),HF(n=20),CHD+HF(n=20),and control groups(n=20).The serum levels of Cys-C,MHR,and UA were measured using immunonephelometry and an enzymatic method,respectively,and the diagnostic values for CHD and HF were evaluated using receiver operating characteristic(ROC)curve analysis.RESULTS Serum levels of Cys-C,MHR,and UA were significantly higher in the CHD,HF,and CHD+HF groups than those in the control group.The serum levels of Cys-C,MHR,and UA were significantly higher in the CHD+HF group than those in the CHD or HF group.The ROC curve analysis showed that serum Cys-C,MHR,and UA had good diagnostic performance for CHD and HF,with areas under the curve ranging from 0.78 to 0.93.The optimal cutoff values of serum Cys-C,MHR,and UA for diagnosing CHD,HF,and CHD+HF were 1.2 mg/L,0.9×10^(9),and 389μmol/L;1.4 mg/L,1.0×10^(9),and 449μmol/L;and 1.6 mg/L,1.1×10^(9),and 508μmol/L,respectively.CONCLUSION Serum Cys-C,MHR,and UA are useful biomarkers for diagnosing CHD and HF,and CHD+HF.These can provide information for decision-making and risk stratification in patients with CHD and HF. 展开更多
关键词 Serum cystatin C Monocyte/high-density lipoprotein-C ratio Uric acid Coronary heart disease Heart failure Risk stratification
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Correlation between serum markers and transjugular intrahepatic portosystemic shunt prognosis in patients with cirrhotic ascites
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作者 Xiao-Gang Hu Xiao-Xian Yang +5 位作者 Jun Lu Gang Li Jian-Ji Dai Jia-Min Wang Yi Deng Rui Feng 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第2期481-490,共10页
BACKGROUND Individuals with refractory ascites in the context of liver cirrhosis typically face an adverse prognosis.The transjugular intrahepatic portosystemic shunt(TIPS)is an efficacious intervention,but there is a... BACKGROUND Individuals with refractory ascites in the context of liver cirrhosis typically face an adverse prognosis.The transjugular intrahepatic portosystemic shunt(TIPS)is an efficacious intervention,but there is a lack of reliable tools for postoperative pro-gnosis assessment.Previously utilized clinical biochemical markers,such as the serum albumin concentration(Alb),sodium(Na+)concentration,and serum creatinine(Scr),have limited predictive value.Therefore,the quest for novel,specific biomarkers to evaluate the post-TIPS prognosis in patients with liver cirrhosis and refractory ascites holds significant practical importance.A retrospective analysis was conducted on 75 patients with liver cirrhosis and refractory ascites who underwent TIPS at our institution from August 2019 to August 2021.These patients were followed up regularly for two years,and the death toll was meticulously documented.The patients were allocated into a survival group(n=45 patients)or a deceased group(n=30 patients)based on their prognosis status.The clinical data of the two groups were collected,and Child-Pugh scores and MELD scores were calculated for analysis.Spearman correlation analysis was carried out to evaluate the correlation of prognosis with Child-Pugh grade,MELD score,and Cys C level.Additionally,a multiple-factor analysis utilizing the Cox proportional hazard model was used to identify independent risk factors affecting the post-TIPS prognosis of patients with liver cirrhosis and refractory ascites.The receiver operating characteristic curve(ROC)ascertained the predictive value of the Cys C concen-tration,Child-Pugh grade,and MELD score for the prognosis of liver cirrhosis with refractory ascites in post-TIPS patients.RESULTS During a 2-year follow-up period,among 75 patients with liver cirrhosis and refractory ascites who underwent TIPS treatment,30 patients(40.00%)passed away.The deceased cohort exhibited heightened aspartate aminotrans-ferase,alanine aminotransferase,total bilirubin,Scr,prothrombin time,Cys C,international normalized ratio,Child-Pugh,and MELD scores compared to those of the survival cohort,while Alb and Na+levels were attenuated in the deceased group(P<0.05).Spearman analysis revealed moderate to high positive correlations between prognosis and Child-Pugh score,MELD score,and Cys C level(r=0.709,0.749,0.671,P<0.05).Multivariate analysis using the Cox proportional hazard model demonstrated that the independent risk factors for post-TIPS prognosis in patients with liver cirrhosis and refractory ascites were Cys C(HR=3.802;95%CI:1.313-11.015),Child-Pugh(HR=3.030;95%CI:1.858-4.943),and MELD(HR=1.222;95%CI:1.073-1.393)scores.ROC analysis confirmed that,compared to those of the classic prognostic models for Child-Pugh and MELD scores,the predictive accuracy of Cys C for post-TIPS prognosis in patients with liver cirrhosis and refractory ascites was slightly lower.This analysis yielded sensitivity and specificity values of 83.33%and 82.22%,respectively.The area under the curve value at this juncture was 0.883,with an optimal cutoff value set at 1.95 mg/L.CONCLUSION Monitoring the serum Cys C concentration is valuable for assessing the post-TIPS prognosis in patients with liver cirrhosis and refractory ascites.Predictive models based on serum Cys C levels,as opposed to Scr levels,are more beneficial for evaluating the condition and prognosis of patients with ascites due to cirrhosis. 展开更多
关键词 Liver cirrhosis Refractory ascites Transjugular intrahepatic portosystemic shunt Cystatin C
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Exploring the Role of Serum Cystatin C in Early Detection of Acute Kidney Injury among On-Pump Cardiac Surgery Patients: A Single-Center Investigation in Bangladesh
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作者 Md. Ahaduzzaman Md. Abir Tazim Chowdhury +8 位作者 Munama Magdum Md. Saiful Islam Khan Satyajit Sharma Monoj Tiwari Md. Abul Bashar Maruf Md. Alauddin Omar Sadeque Khan Md. Mostafizur Rahman Mirza Md. Nazmus Saquib 《World Journal of Cardiovascular Diseases》 CAS 2024年第6期363-373,共11页
Background: Acute Kidney Injury (AKI) stands as a prominent postoperative complication in on-pump cardiac surgery, with repercussions on morbidity, mortality, and hospitalization duration. Current diagnostic criteria ... Background: Acute Kidney Injury (AKI) stands as a prominent postoperative complication in on-pump cardiac surgery, with repercussions on morbidity, mortality, and hospitalization duration. Current diagnostic criteria relying on serum creatinine levels exhibit a delayed identification of AKI, prompting an exploration of alternative biomarkers. Aims and Objectives: This study is designed to overcome diagnostic constraints and explore the viability of serum Cystatin C as an early predictor of Acute Kidney Injury (AKI) in individuals undergoing on-pump cardiac surgery. The investigation aims to establish the relationship between serum Cystatin C levels and the onset of AKI in patients subjected to on-pump cardiac surgery. Primary objectives involve the assessment of the diagnostic effectiveness of serum Cystatin C, its comparison with serum creatinine, and the exploration of its potential for the early identification and treatment of AKI. Methodology: Conducted as a single-center study at the cardiac surgery department of BSMMU in Bangladesh from September 2020 to August 2022, a comparative cross-sectional analysis involved 31 participants categorized into No AKI and AKI groups based on Kidney Disease: Improving Global Outcomes (KDIGO) criteria. Data collection encompassed preoperative, post-CBP (cardiopulmonary bypass) conclusion at 2 hours, postoperative day 1, and postoperative day 2 intervals. Statistical analyses included Chi-squared tests, independent Student’s t-tests, and one-sample t-tests. Significance was set at P Results: The study revealed no significant differences in baseline characteristics between the No AKI and AKI groups, except for CPB time and cross-clamp time. Serum Cystatin C levels in the AKI group exhibited statistical significance at various time points, highlighting its potential as an early detector. Conversely, Serum Creatinine levels in the AKI group showed no statistical significance. The Receiver Operating Characteristic (ROC) curve analysis further supported the efficacy of serum Cystatin C, with an Area under the ROC Curve of 0.864 and a cut-off value of 0.55 (p Conclusion: This study supports the superior utility of serum Cystatin C as an early detector of AKI in on-pump cardiac surgery patients compared to serum creatinine. Its ability to identify AKI several hours earlier may contribute to reduced morbidity, mortality, and healthcare costs. The findings underscore the significance of exploring novel biomarkers for improved post-cardiac surgery renal function assessment. 展开更多
关键词 Acute Kidney Injury (AKI) On-Pump Cardiac Surgery Serum Cystatin C Serum Creatinine Diagnostic Biomarkers Early Detection Cardiopulmonary Bypass Single-Center Study BANGLADESH
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鲢鱼重组cystatin C的抑菌活性及抑菌机理初探
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作者 徐小烽 李树红 +7 位作者 钱邓帆 郭淇羽 李冉 李龙飞 岑永好 段志豪 韩学艳 米辰 《食品与发酵工业》 CAS CSCD 北大核心 2023年第24期125-131,共7页
cystatins是一类天然抗菌蛋白,广泛分布于鱼类加工废弃组织。采用滤纸片扩散法和二倍稀释法,评价了鲢鱼(Hypophthalmichthys molitrix)重组cystatin C(HmCystatin C)对6株常见的水产品腐败菌的抑菌活性;并以铜绿假单胞菌和腐生葡萄球菌... cystatins是一类天然抗菌蛋白,广泛分布于鱼类加工废弃组织。采用滤纸片扩散法和二倍稀释法,评价了鲢鱼(Hypophthalmichthys molitrix)重组cystatin C(HmCystatin C)对6株常见的水产品腐败菌的抑菌活性;并以铜绿假单胞菌和腐生葡萄球菌为典型受试菌,测定HmCystatin C与菌体及其细胞壁成分脂多糖(lipopolysaccharides,LPS)和肽聚糖(peptidoglycan,PGN)的结合情况,及对受试菌生长曲线、细胞壁、细胞质膜通透性的影响,初步探讨其抑菌机制。结果表明,HmCystatin C对除枯草芽孢杆菌外的5株腐败菌均具抑制作用,对典型受试菌的最低抑菌浓度(minimum inhibitory concentration,MIC)及最低杀菌浓度(minimal bactericide concentration,MBC)均为3.5 mg/mL;HmCystatin C能与典型受试菌结合,并且对LPS和PGN表现出亲和性。此外典型受试菌的细胞壁和细胞质膜被破坏,胞内物质渗出。因此推测HmCystatin C可能首先吸附到菌体表面并与细胞壁成分结合,进而破坏细胞完整性,导致内容物外泄后菌体死亡。该结果为阐明鱼类cystatins抑菌机制奠定实验基础,也为综合利用鱼源cystatins提供理论参考。 展开更多
关键词 鲢鱼重组cystatin C 抗菌蛋白 水产品腐败菌 抑菌活性 抑菌机理
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Application of Cystatin C Combined with Homocysteine Detection in AIDS and Tuberculosis Complicated with Hypertension 被引量:1
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作者 Jianhong Qin Chaojuan Liang +2 位作者 Xiaoyu Jiang Zhizong Pan Lida Mo 《Advances in Bioscience and Biotechnology》 2023年第4期162-171,共10页
Objective: To investigate the application of cystatin C combined with homocysteine detection in AIDS and tuberculosis complicated with hypertension. Methods: 57 patients with AIDS complicated with hypertension and 52 ... Objective: To investigate the application of cystatin C combined with homocysteine detection in AIDS and tuberculosis complicated with hypertension. Methods: 57 patients with AIDS complicated with hypertension and 52 patients with tuberculosis complicated with hypertension from Guangxi Infectious Diseases Hospital Nanning Fourth People’s Hospital/Guangxi AIDS Clinical Treatment Center (Nanning) from October 2022 to March 2023, and 196 patients with simple hypertension from Guangxi Cardiovascular Diseases Hospital Nanning Third People’s Hospital were selected as research objects. And then the difference in the detection results of cystatin C and homocysteine among the three groups was compared. Results: The detection results of serum cystatin C and homocysteine in AIDS patients with hypertension and tuberculosis patients with hypertension were higher than those in the simple hypertension group, and the difference was statistically significant (P < 0.05). However, there was no significant difference in the detection results of cystatin C or homocysteine between the AIDS hypertension group and the tuberculosis hypertension group (P > 0.05). Conclusion: The detection of cystatin C combined with homocysteine has high clinical application value in AIDS with hypertension and tuberculosis with hypertension. When AIDS is combined with hypertension or tuberculosis is combined with hypertension, cystatin C and homocysteine are at a high level, while the concentration levels of cystatin C and homocysteine are relatively low in simple hypertension. Therefore, cystatin C combined with homocysteine detection can provide better laboratory evidence for clinical diagnosis and differential diagnosis, and is worth promoting and applying. 展开更多
关键词 Cystatin C HOMOCYSTEINE AIDS TUBERCULOSIS HYPERTENSION
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血清CGRP、Cystatin C、VEGFR水平与烟雾病患者血管重建术后认知功能的相关性分析
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作者 崔子玉 张平 刘宇 《医学检验与临床》 2023年第2期27-30,共4页
目的:探究烟雾病患者行血管重建术后血清降钙素基因相关肽(CGRP)、血清胱抑素C(Cystatin C)、血管内皮生长因子受体(VEGFR)与认知功能的相关性。方法:选择2020年7月-2021年7月在我院行血管重建术的113例烟雾病患者为研究对象,根据术后3... 目的:探究烟雾病患者行血管重建术后血清降钙素基因相关肽(CGRP)、血清胱抑素C(Cystatin C)、血管内皮生长因子受体(VEGFR)与认知功能的相关性。方法:选择2020年7月-2021年7月在我院行血管重建术的113例烟雾病患者为研究对象,根据术后3个月认知功能情况,分为认知正常组(n=92例)、认知障碍组(n=21例),比较两组临床资料、蒙特利尔认知量表(MoCA)评分、CGRP、Cystatin C、VEGFR水平,分析CGRP、Cystatin C、VEGFR与MoCA评分的相关性。结果:两组Suzuki分期、MMSE评分比较,差异有统计学意义(P<0.05);认知障碍组血清CGRP水平低于认知正常组,Cystatin C、VEGFR水平均高于认知正常组(P<0.05);Pearson分析显示,CGRP水平与MoCA评分呈正相关(r=0.427,P<0.05),Cystatin C、VEGFR水平与MoCA评分呈负相关(r=-0.512、-0.458,P<0.05);多因素分析发现,血清CGRP、Cystatin C、VEGFR水平与MoCA评分显著相关(P<0.05)。结论:烟雾病患者血管重建术后血清CGRP水平明显降低,Cystatin C、VEGFR水平明显增高,且与认知功能、预后密切相关。 展开更多
关键词 CGRP Cystatin C VEGFR 烟雾病 血管重建术 认知功能
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稿件内容更正说明
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作者 《癌变·畸变·突变》编辑部 《癌变.畸变.突变》 CAS 2023年第1期53-53,共1页
发表于本刊2022年第34卷第6期第429页李子垚等的《Cystatin 6蛋白在哈萨克族食管鳞癌组织中的表达及其意义》一文中,部分内容需作如下更正:1.文内凡涉及表述内容为“有肿瘤家族史的患者其CST6阳性表达率更高”均应改为“无肿瘤家族史的... 发表于本刊2022年第34卷第6期第429页李子垚等的《Cystatin 6蛋白在哈萨克族食管鳞癌组织中的表达及其意义》一文中,部分内容需作如下更正:1.文内凡涉及表述内容为“有肿瘤家族史的患者其CST6阳性表达率更高”均应改为“无肿瘤家族史的患者其CST6阳性表达率更高”;2.图1的图注部分,A、B内容互换,C、D内容互换。特此说明。 展开更多
关键词 肿瘤家族史 阳性表达率 CYSTATIN 哈萨克族食管鳞癌 CST 更正 稿件内容 李子
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Clinical Significance of Serum Uric Acid Combined with Cystatin C Detection in Patients with Different Levels of Hypertension with High Risk Degree and Above
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作者 Tianxiang Long Xiaoyu Jiang +1 位作者 Guosheng Su Lihua Qin 《Natural Science》 CAS 2023年第3期103-110,共8页
Objective: To explore the clinical significance of serum uric acid combined with cystatin C detection in high risk degree of hypertension of different grades. Methods: The patients who were treated in the Department o... Objective: To explore the clinical significance of serum uric acid combined with cystatin C detection in high risk degree of hypertension of different grades. Methods: The patients who were treated in the Department of Cardiovascular Medicine of our hospital from January to December 2022 were selected as the study subjects, and the high risk and extremely high risk groups of grade I, II and III hypertension were selected for comparative analysis to explore their clinical significance. Results: There was a statistically significant difference in the number of patients with extremely high risk of grade II hypertension between men and women (P 0.05), which showed that there was no specificity in the concentration detection of serum uric acid and cystatin C in different grades of hypertension;there was no significant difference in serum uric acid concentration between grade II and grade III of hypertension with high risk grade and cystatin C concentration between grade I and grade III of hypertension with high risk grade (P > 0.05), but there was significant difference in the concentration detection of serum uric acid and cystatin C between the other groups (P < 0.05), which indicates that the detection of serum uric acid and cystatin C has important clinical significance in the high risk degree of hypertension. Conclusion: In the comparison of the detection of blood uric acid and cystatin C in different levels of hypertension with extremely high risk, the difference of cystatin C in grade I and grade III was not statistically significant, and the rest were statistically significant;therefore, the detection of serum uric acid and cystatin C can provide reliable laboratory data for clinical diagnosis and treatment of the extremely high risk degree of different levels of hypertension. 展开更多
关键词 HYPERTENSION High Risk Extremely Risk Uric Acid Cystatin C
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血清NGAL和Cystatin C对糖尿病肾病早期诊断的意义研究 被引量:46
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作者 童俊容 何凤 +5 位作者 罗正茂 张虹 王妍春 黄远航 王寅 张建林 《中国全科医学》 CAS CSCD 北大核心 2010年第8期810-812,共3页
目的探讨糖尿病肾病(DN)患者血清NGAL、CystatinC的改变及其对DN早期诊断的临床意义。方法选择2型糖尿病(T2DM)患者55例,根据尿清蛋白排泄率(UAER)分为3组,正常清蛋白尿(NA)组15例、微量清蛋白尿(MA)组17例、临床肾病(CN)组23例;同期选... 目的探讨糖尿病肾病(DN)患者血清NGAL、CystatinC的改变及其对DN早期诊断的临床意义。方法选择2型糖尿病(T2DM)患者55例,根据尿清蛋白排泄率(UAER)分为3组,正常清蛋白尿(NA)组15例、微量清蛋白尿(MA)组17例、临床肾病(CN)组23例;同期选取非肾病患者15例作为对照组。应用ELISA法检测患者血清NGAL(sNGAL)水平,应用免疫速率散射比浊法检测CystatinC水平,分析血清NGAL及Cystatin C水平与肾小球滤过率(GFR)之间的相关关系,应用受试者操作特征(ROC)曲线评价二者诊断DN的敏感度。结果(1)MA组、CN组患者血清NGAL和CystatinC水平均较对照组升高,差异有统计学意义(P<0.05),其中CN组患者血清NGAL和Cystatin C水平最高〔分别为(845.8±68.8)ng/ml和(3.58±1.21)mg/L〕。(2)Pearson相关分析:糖尿病患者血清NGAL和CystatinC水平与GFR均呈负相关(r值分别为-0.871和-0.792,P<0.01),且血清NGAL与GFR的相关性更密切。(3)两组患者血清NGAL和CystatinCROC曲线下的面积分别为0.839和0.720。结论糖尿病患者血清NGAL与GFR有较好的相关性,NGAL是诊断早期DN敏感而准确的指标,有望用于临床监测。 展开更多
关键词 NGAL CYSTATIN C 糖尿病肾病 早期诊断
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检测肺癌患者血清Cathepsin X及Cystatin C的临床意义 被引量:9
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作者 张学德 侯彦丽 +4 位作者 牛泽群 李维 孟夏 张娜 杨拴盈 《中国肺癌杂志》 CAS 北大核心 2013年第8期411-416,共6页
背景与目的组织蛋白酶X(Cathepsin X,Cat X)是最近发现的一种组织蛋白酶(Cathepsins,Cats)家族成员。近年来研究表明CatX与多种恶性肿瘤发生、发展有关。本研究旨在探讨肺癌患者血清CatX及cystatinC的表达与临床特征及预后的关系。方法... 背景与目的组织蛋白酶X(Cathepsin X,Cat X)是最近发现的一种组织蛋白酶(Cathepsins,Cats)家族成员。近年来研究表明CatX与多种恶性肿瘤发生、发展有关。本研究旨在探讨肺癌患者血清CatX及cystatinC的表达与临床特征及预后的关系。方法采用ELISA法定量检测84例肺癌患者及36例健康对照者血清CatX及cystatinC表达。结果肺癌患者血清Cat X和cystatin C水平明显高于健康人(P<0.01);CatX水平与肺癌病理类型之间有相关的趋势(P=0.076)。血清cystatin C水平与肺癌TNM分期正相关(P=0.01),cystatinC/CatX与淋巴结转移之间有相关趋势(P=0.058)。CatX表达水平与肺癌患者总生存期(overallsurvival,OS)相关,高水平CatX肺癌患者OS更短。Cox单因素回归示CatX高表达以及TNM分期是影响肺癌预后独立因素,Cox多因素回归显示,仅TNM分期是患者预后的独立危险因素。结论肺癌患者中血清CatX和cystatinC水平升高,检测肺癌患者Cat X和cystatin C血清水平对于指导临床肺癌诊断、评估预后有重要意义。 展开更多
关键词 CATHEPSIN X CYSTATIN C 肺肿瘤 血清
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Cystatin家族的研究进展 被引量:13
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作者 李国平 王秀琴 +2 位作者 刘芝华 王仑山 吴旻 《癌症》 SCIE CAS CSCD 北大核心 2001年第2期217-218,共2页
关键词 CYSTATIN 肿瘤浸润 细胞凋亡 肿瘤转移
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猪Cystatin B基因cDNA克隆及遗传多态性分析 被引量:8
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作者 陈磊 李学伟 +2 位作者 朱砺 李强 李明洲 《中国农业科学》 CAS CSCD 北大核心 2008年第7期2120-2127,共8页
【目的】研究猪肉嫩度性状候选基因-半胱氨酸蛋白酶抑制素B(Cystatin B,CSTB)基因对肌肉宰后嫩化的作用,为研究嫩度性状的遗传机理提供理论基础。【方法】采用RT-PCR结合克隆测序的方法,从猪肌肉组织总RNA中克隆到猪CSTB基因cDNA序列,... 【目的】研究猪肉嫩度性状候选基因-半胱氨酸蛋白酶抑制素B(Cystatin B,CSTB)基因对肌肉宰后嫩化的作用,为研究嫩度性状的遗传机理提供理论基础。【方法】采用RT-PCR结合克隆测序的方法,从猪肌肉组织总RNA中克隆到猪CSTB基因cDNA序列,并推导出其编码的氨基酸序列。采用PCR-RFLP方法,分析了84头猪CSTB基因多态性及其与嫩度性状的关联性。【结果】CSTB基因开放阅读框全长294bp,编码98个氨基酸。同源性分析结果表明,猪与人、鼠、牛的CSTB基因cDNA编码区(CDS)同源性分别为81%、85%和89%,推测氨基酸序列同源性为83%、76%和85%。蛋白质结构同源建模分析表明,该蛋白与人、鼠Cystatin B类似,具有stefin类蛋白酶抑制剂的典型空间结构,包括5条平行的β-sheet和负责与被抑制酶结合的楔形边缘。在CSTB基因第二内含子内PvuⅡ酶切位点检测到了AA、AB和BB这3种基因型,关联性分析表明AA基因型个体的各项嫩度指标均极显著低于另2种基因型的个体(P<0.01),最大剪切力为5.11kg,硬度值为19.31kg·s、平均剪切力为3.26kg。【结论】CSTB基因在不同物种间具有较高同源性,猪CSTB基因多态性与猪肉嫩度性状显著相关。 展开更多
关键词 CYSTATIN B基因 基因克隆 嫩度
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胱抑素C在糖尿病肾病早期诊断中的应用 被引量:36
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作者 王亚平 姜宇海 +1 位作者 余伟 张健峰 《临床检验杂志》 CAS CSCD 北大核心 2006年第3期240-240,共1页
临床上多用测定血清肌酐(SCr)和内生肌酐清除率(CCr)来分析肾小球滤过率(GFR),但影响它们的肾外因素很多。胱抑素C(Cystatin C)是一类小分子蛋白质,在体内由有核细胞产生,不受肾外因素的干扰,其产生速率恒定,且只通过肾小... 临床上多用测定血清肌酐(SCr)和内生肌酐清除率(CCr)来分析肾小球滤过率(GFR),但影响它们的肾外因素很多。胱抑素C(Cystatin C)是一类小分子蛋白质,在体内由有核细胞产生,不受肾外因素的干扰,其产生速率恒定,且只通过肾小球滤过排泄,具备作为GFR理想标志物的条件,实验研究SCr、CCr、Cystatin C之间的相关性,以阐明Cystatin C在糖尿病肾病早期诊断中的应用价值。 展开更多
关键词 血清胱抑素C(Cystatin C) 糖尿病肾病 肌酐清除率(CCr)
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蛇毒cystatin基因转染抗人胃腺癌细胞体外侵袭作用的研究 被引量:9
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作者 万榕 郑海音 +2 位作者 宋军 林旭 林建银 《中国肿瘤临床》 CAS CSCD 北大核心 2005年第17期961-965,共5页
目的:探讨蛇毒半胱氨酸蛋白酶抑制剂(sv-cystatin)对人胃腺癌细胞SGC7901侵袭转移的抑制作用。方法:采用人工拼接方法合成蛇毒cystatincDNA,构建pcDNA3.1/sv-cystatin真核表达质粒,经脂质体转染将pcDNA3.1/sv-cystatin质粒和pcDNA3.1质... 目的:探讨蛇毒半胱氨酸蛋白酶抑制剂(sv-cystatin)对人胃腺癌细胞SGC7901侵袭转移的抑制作用。方法:采用人工拼接方法合成蛇毒cystatincDNA,构建pcDNA3.1/sv-cystatin真核表达质粒,经脂质体转染将pcDNA3.1/sv-cystatin质粒和pcDNA3.1质粒分别导入胃腺癌细胞系SGC7901;利用RT-PCR和Westernblot检测SGC7901细胞中sv-cystatin基因的表达;应用细胞-基质粘附实验、细胞运动实验及重建基底膜侵袭实验分析sv-cystatin表达对SGC7901细胞粘附、运动和侵袭能力的影响。结果:转染sv-cystatin基因后,SGC/sv-cystatin细胞克隆中可检测到sv-cystatin的明显表达,SGC/sv-cystatin细胞的运动能力和体外穿越重建基底膜的能力明显低于转染空载体细胞和未转染的SGC7901细胞,但其体外粘附能力未见明显变化。结论:sv-cystatin基因的表达可使胃癌SGC7901细胞体外运动能力及侵袭能力明显减弱,提示sv-cystatin具有抑制胃癌细胞侵袭转移的作用。 展开更多
关键词 胃肿瘤 转染 蛇毒cystatin 表达
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在肾脏疾病中检测血清Cystatin C的意义 被引量:19
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作者 张雅君 王汉民 +1 位作者 陈威 宋朝君 《中国现代医学杂志》 CAS CSCD 2003年第10期47-49,共3页
目的 :探讨肾脏疾病中检测血清胱蛋白酶抑制剂以C(CystatinC)浓度评估肾小球滤过率 (GFR)的价值。方法 :应用酶联免疫吸附法 (ELISA) ,测定经临床及实验室检查证实有肾脏损害患者的血清CystatinC浓度 ,同时测定血肌酐 (Scr) ,尿素氮 (B... 目的 :探讨肾脏疾病中检测血清胱蛋白酶抑制剂以C(CystatinC)浓度评估肾小球滤过率 (GFR)的价值。方法 :应用酶联免疫吸附法 (ELISA) ,测定经临床及实验室检查证实有肾脏损害患者的血清CystatinC浓度 ,同时测定血肌酐 (Scr) ,尿素氮 (BUN)和血 β2 -微球蛋白 (β2 -GM) ,采用Cockcroft -Cault公式计算肌酐清除率 (Cockcroft) ,并用同位素99mTc -DTPA测定肾小球滤过率 ,血清CystatinC浓度分别与其它指标进行相关性分析。结果 :血清CystatinC浓度与β2 -GM (r=0 .69,P <0 .0 1) ;Scr(r=0 .63 5 ,P <0 .0 1) ;BUN(r=0 .5 49,P <0 .0 1呈正相关 ,与Cockcroft(r=- 0 .743 ,P <0 .0 1) ;99Tc -DTPA测定肾小球滤过率 (r =- 0 .791,P <0 .0 1呈负相关。结论 :临床上应用检测血清CystatinC浓度来评估肾功能是一种特异性高、准确性好、快速简单的方法。 展开更多
关键词 小球滤过率 CYSTATIN C 血肌酐
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健康人群血清Cystatin C参考值调查及其对糖尿病肾损害诊断的作用 被引量:9
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作者 邱谷 黄桥林 +2 位作者 陈红梅 戴世荣 张骆军 《现代检验医学杂志》 CAS 2007年第4期94-95,共2页
目的建立该地区健康成人血清Cystatin C的参考值范围,探讨其在糖尿病肾损害诊断中的作用。方法选择216名健康成人,按不同年龄段分组;根据尿中清蛋白(mAlb)的排出量将168例糖尿病患者分组,在HITACHI7060自动生化分析仪上,采用乳胶颗粒增... 目的建立该地区健康成人血清Cystatin C的参考值范围,探讨其在糖尿病肾损害诊断中的作用。方法选择216名健康成人,按不同年龄段分组;根据尿中清蛋白(mAlb)的排出量将168例糖尿病患者分组,在HITACHI7060自动生化分析仪上,采用乳胶颗粒增强免疫比浊法测定血清Cystatin C,免疫透射比浊法测定尿mAlb,酶法测定血清肌酐。结果健康成人血清Cystatin C呈正态分布,随着年龄增长Cystatin C水平呈上升趋势,以95%可信限作为健康成人血清Cystatin C的参考值,结果60y以下组为0.48~1.02mg/L,60y以上组为0.66~1.20mg/L;在糖尿病微量清蛋白尿期,Scr与对照组比较差异无统计学意义(P>0.05),而血清Cystatin C与对照组差异有统计学意义(P<0.05),提示血清Cys- tatin C对糖尿病肾损害诊断灵敏度明显高于Scr;经对部分糖尿病患者进行跟踪调查测定,证实单用尿mAlb诊断早期糖尿病肾病存在一定比例的假阳性,而Cystatin C的特异性较强。结论血清Cystatin C可作为一个良好的指标替代Scr用于临床评价GFR,血清Cystatin C联合尿mAlb测定可提高糖尿病早期肾损害诊断正确率。 展开更多
关键词 CYSTATIN C 参考值 糖尿病 肾损害
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鼻咽癌患者血清MIP-3α与cystatin A表达及其临床意义 被引量:7
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作者 李军 汤敏中 +7 位作者 陆爱英 钟伟铭 高健全 郑裕明 曾洪 陈万生 梁伟 蔡永林 《中国癌症杂志》 CAS CSCD 北大核心 2013年第10期845-851,共7页
背景与目的:目前,检测鼻咽癌的病灶残留、复发、远处转移,评价放化疗敏感性及判断预后主要依赖影像学的检查。寻找鼻咽癌早期诊断及预后相关的特异性分子标志物对鼻咽癌的早期诊断及个体化治疗具有重要意义。本研究通过检测血清巨噬细... 背景与目的:目前,检测鼻咽癌的病灶残留、复发、远处转移,评价放化疗敏感性及判断预后主要依赖影像学的检查。寻找鼻咽癌早期诊断及预后相关的特异性分子标志物对鼻咽癌的早期诊断及个体化治疗具有重要意义。本研究通过检测血清巨噬细胞炎性蛋白-3α(macrophage inflammatory protein-3α,MIP-3α)和cystatin A蛋白在鼻咽癌患者治疗前、后及健康人中的表达情况,探讨其在鼻咽癌诊断、与临床病理特征关系以及疗效评价中的作用。方法:应用定量酶联免疫吸附法检测140例初治无远处转移的鼻咽癌患者治疗前、治疗结束后血清中MIP-3α和cystatin A的表达情况,并以100名健康体检者为对照。结果:以血清MIP-3α水平为31 pg/mL及cystatin A水平为16 ng/mL诊断鼻咽癌的敏感度分别为92.1%及42.1%,特异度分别为86.0%及85.0%。140例鼻咽癌患者经过治疗后均达到完全缓解或者部分缓解。鼻咽癌患者治疗前血清MIP-3α和cystatin A水平显著高于治疗后和健康对照者。MIP-3α和cystatin A均与鼻咽癌临床分期相关,MIP-3α还与T分期有关。治疗后完全缓解患者的血清MIP-3α降至健康对照者水平。部分缓解患者仍高于健康对照者水平,而完全缓解与部分缓解患者的血清cystatin A均降至健康对照者水平。在1年内发生远处转移的患者治疗后血清MIP-3α和cystatin A水平均明显高于未发生远处转移患者和健康对照者。MIP-3α和cystatin A表达之间存在相关性。结论:血清MIP-3α水平作为辅助诊断鼻咽癌的指标有一定的临床意义。血清MIP-3α与cystatin A检测有助于判断鼻咽癌分期和治疗后的近期疗效。 展开更多
关键词 鼻咽癌 巨噬细胞炎性蛋白-3α CYSTATIN A 临床疗效
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血清cystatin C,IgA/C3及IgA/C3检测在IgA肾病诊断及预后评估中的临床价值 被引量:6
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作者 彭道荣 王菁 +5 位作者 邢瑞青 杨玉琪 张涛 吴永昌 程晓东 张小宁 《现代检验医学杂志》 CAS 2011年第6期52-54,57,共4页
目的 探讨IgA肾病患者血清cystatin C,IgA和IgA/C3比值在IgA肾病(IgAN)的诊断及预后中的临床价值.方法 应用乳胶增强散射比浊法测定62例IgAN患者和58例非IgAN患者血清cystatin C,IgA及C3含量,同时对检测结果进行分析.结果 ①IgAN患者... 目的 探讨IgA肾病患者血清cystatin C,IgA和IgA/C3比值在IgA肾病(IgAN)的诊断及预后中的临床价值.方法 应用乳胶增强散射比浊法测定62例IgAN患者和58例非IgAN患者血清cystatin C,IgA及C3含量,同时对检测结果进行分析.结果 ①IgAN患者血清cystatin C水平[(1.26±0.46)mg/L] 与非IgAN患者血清cystatin C[(1.66±1.17)mg/L] 水平比较,差异有统计学意义(t=-2.50,P〈0.05);IgAN患者血清IgA/C3比值(2.59±1.41)显著高于非IgAN患者(2.07±1.03),差异亦有统计学意义(t=2.33,P〈0.05);而血清IgA含量[(2.44±1.04)g/L]和C3 含量[(1.07±0.27)g/L] 与非IgAN患者比较差异均无统计学显著性意义;② Lee氏分级为Ⅲ,Ⅳ,V级的IgAN患者血清IgA水平及IgA/C3比值均显著高于Lee氏I和Ⅱ级,差异有统计学意义(t=-2.21,P〈0.05;t=-2.04,P〈0.05);③IgAN患者IgA水平〉3.0 g/L和IgA/C3比值≥2时诊断IgAN的敏感度、特异度、阳性预测值、阴性预测值及Youden指数YI分别为68.42%,51.48%,20.97%,89.66%,0.20和59.68%,56.90%,59.68%,56.90%,0.17.结论 血清IgA/C3比值联合IgA及cystatin C水平可作为IgAN鉴别诊断、病情判断、预后评估的参考指标;血清cystatin C可能是反映IgA肾病中肾小球滤过功能更为敏感的指标. 展开更多
关键词 IGA肾病 C3 IgA/C3比值 CYSTATIN C 检测
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