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
Background Acute kidney injury(AKI)is common in critically ill children with significant mortality and morbidity.Serum creatinine is an insensitive and late biomarker compared to newly proposed AKI biomarkers.Methods ...Background Acute kidney injury(AKI)is common in critically ill children with significant mortality and morbidity.Serum creatinine is an insensitive and late biomarker compared to newly proposed AKI biomarkers.Methods Prospective study in pediatric intensive care unit(PICU)over three months to compare between serum cystatin-C(s-Cys-C)and urinary neutrophil gelatinase-associated lipocalin(uNGAL)as AKI biomarkers at multiple time points with pediatric risk,injury,failure,loss,end-stage renal disease(pRIFLE)classification in diagnosing AKI.Results Forty children were recruited.Of these 40 children,22 developed AKI according to pRIFLE criteria.There was no significant difference between AKI and non-AKI in age(P=0.29).Post cardiac surgery,renal insult was the main cause of AKI(27.3%).There was a twofold increased risk of incident AKI in those patients with high baseline uNGAL at PICU admission and almost a fourfold increased risk in patients with high baseline s-Cys-C at PICU admission.uNGAL levels were highly predictive of AKI during the follow-up period[area under the curve(AUC)=0.76,95%confidence interval(CI)0.61-0.92].The cutoff point with the highest correctly classified proportion was 223 ng/mL(≥12 centiles)which correctly predict 80.0%patients with AKI,with a corresponding sensitivity of 72.7%and a specificity of 89.9%.AUC for s-Cys-C was 0.86(95%CI 0.75-0.97),and the highest correctly classified proportion was 1009μg/L(≥13 centiles);75%of patients with AKI,with a corresponding sensitivity of 63.6%and a specificity of 88.9%.Conclusion uNGAL and s-Cys-C predicts AKI early in critically ill children.展开更多
文摘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.
基金funded by the King Abdulaziz City for Science and Technology(KACST)under grand number 27-35-T-A(27-35-■■)。
文摘Background Acute kidney injury(AKI)is common in critically ill children with significant mortality and morbidity.Serum creatinine is an insensitive and late biomarker compared to newly proposed AKI biomarkers.Methods Prospective study in pediatric intensive care unit(PICU)over three months to compare between serum cystatin-C(s-Cys-C)and urinary neutrophil gelatinase-associated lipocalin(uNGAL)as AKI biomarkers at multiple time points with pediatric risk,injury,failure,loss,end-stage renal disease(pRIFLE)classification in diagnosing AKI.Results Forty children were recruited.Of these 40 children,22 developed AKI according to pRIFLE criteria.There was no significant difference between AKI and non-AKI in age(P=0.29).Post cardiac surgery,renal insult was the main cause of AKI(27.3%).There was a twofold increased risk of incident AKI in those patients with high baseline uNGAL at PICU admission and almost a fourfold increased risk in patients with high baseline s-Cys-C at PICU admission.uNGAL levels were highly predictive of AKI during the follow-up period[area under the curve(AUC)=0.76,95%confidence interval(CI)0.61-0.92].The cutoff point with the highest correctly classified proportion was 223 ng/mL(≥12 centiles)which correctly predict 80.0%patients with AKI,with a corresponding sensitivity of 72.7%and a specificity of 89.9%.AUC for s-Cys-C was 0.86(95%CI 0.75-0.97),and the highest correctly classified proportion was 1009μg/L(≥13 centiles);75%of patients with AKI,with a corresponding sensitivity of 63.6%and a specificity of 88.9%.Conclusion uNGAL and s-Cys-C predicts AKI early in critically ill children.
文摘目的:探讨血清胱抑素C(Cystatin c,CysC)水平与短暂性脑缺血发作(Transient ischemic attack,TIA)患者颈内动脉狭窄的相关性.方法:纳入2019年1月至2022年6月我院收治的170例TIA患者为研究对象,根据脑血管造影检查结果评估颈动脉狭窄发生情况;并将颈动脉狭窄程度分为轻度狭窄组(n=38)、中度狭窄组(n=40)和重度狭窄组(n=41).收集所有患者基线资料,并在入院后测定患者实验室指标,重点分析血清CysC水平与TIA患者颈内动脉狭窄的相关性.结果:170例TIA患者中有119例患者发生颈动脉狭窄,发生率为70.00%,其中轻度狭窄患者38例,中度狭窄患者40例,重度狭窄患者41例;四组TIA患者性别、吸烟史、饮酒史、年龄、体重指数(Body Mass Index,BMI)、入院时美国国立卫生研究院卒中量表(National Institutes of Health Stroke Scale,NIHSS)评分、入院时收缩压(Systolic Blood Pressure,SBP)及入院时舒张压(Diastolic blood pressure,DBP)、血清总胆固醇(Cholesterol,CHO)水平比较,差异无统计学意义(P>0.05);重度狭窄组患者血清CysC水平均高于中度狭窄组及轻度狭窄组,三组间比较,差异有统计学意义(P<0.05).经Logistic回归分析显示,血清CysC水平升高是TIA患者颈动脉狭窄程度加重的风险因子(OR>1,P<0.05).结论:血清CysC水平与TIA患者颈内动脉狭窄密切相关,血清CysC水平升高会加重TIA患者颈内动脉狭窄程度.
