Aim: To investigate whether the measurement of serum zinc may improve the detection of prostate cancer (PCa) in men who had total prostate-specific antigen (PSA) levels higher than 4.1 ng/mL. Methods: A mass scr...Aim: To investigate whether the measurement of serum zinc may improve the detection of prostate cancer (PCa) in men who had total prostate-specific antigen (PSA) levels higher than 4.1 ng/mL. Methods: A mass screening for PCa of 3940 men over 50 years old was undertaken using total serum PSA. Of the 190 men (4.8 %) with elevated PSA, 143 (3.6 %) underwent a transrectal ultrasonography (TRUS)-guided biopsy of the prostate, and 42 men (1% of total and 29.3 % of men undergoing biopsy) were found to have cancer. The areas under the receiver operating characteristic curves (ROC-AUC) were used to compare the diagnostic power of cancer detection by means of serum zinc, and free PSA/total PSA ratio (fit). Results: The men with levels of serum zinc that ranged from 40 ng/mL-60 ng/mL, had an age-adjusted odds ratios(OR) of 5.0. A cutoff value of 100 gg/mL for-serum zinc concentration provided a sensitivity of 90.5 % and a specificity of 32.7 % in elevated PSA range, and a sensitivity of 93.3 % and specificity of 27.1% in gray zone, respectively. In the gray zone ranges of 4.1 ng/mL-10.0 ng/mL, the ROC-AUC for zinc was 73.0 % higher than 62.7 % of f/t PSA ratio and 56.7 % of total PSA. Conclusion: PCa displays a lower serum zinc concentration. The measurement of zinc levels improves PCa detection in the gray zone compared with the f/t PSA ratio and total PSA. (Asian J Androl 2005 Sep; 7: 323-328)展开更多
目的:探讨前列腺特异抗原(prostate specific antigen,PSA)、前列腺特异性抗原密度(prostate specific antigen density,PSAD)及移行带前列腺特异性抗原密度(pros-tate specific antigen density of transition zone,PSAD-TZ)用于前列...目的:探讨前列腺特异抗原(prostate specific antigen,PSA)、前列腺特异性抗原密度(prostate specific antigen density,PSAD)及移行带前列腺特异性抗原密度(pros-tate specific antigen density of transition zone,PSAD-TZ)用于前列腺癌筛选时前列腺体积和患者年龄因素对其的影响。方法:回顾性分析因PSA升高和(或)直肠指检异常疑诊前列腺癌而进行直肠前列腺穿刺活组织检查(活检)的295例男性患者的临床资料,根据活检结果分为BPH组(193例)和前列腺癌组(102例),比较2组中不同前列腺体积以及不同年龄段的PSA、PSAD及PSAD-TZ水平。结果:当前列腺体积小于或等于50mL时,BPH组的PSA、PS-AD及PSAD-TZ值与前列腺癌组比较差异均有统计学意义(P<0.01);当前列腺体积大于50mL时,2组的PSA值比较差异无统计学意义(P>0.05),但PSAD及PSAD-TZ值比较差异有统计学意义(均为P<0.01)。2组的PSA值随着年龄的增加而升高(均为P<0.01)。在50~59岁者和60~69岁者中,2组的PSAD及PSAD-TZ值比较差异均有统计学意义(P<0.05~0.01);在70~79岁者中,2组的PSAD及PSA-TZ值比较差异无统计学意义。结论:当前列腺体积小于或等于50mL时,检测PSA、PSAD及PSAD-TZ值对前列腺癌的筛选有重要意义,而前列腺体积大于50mL时,需结合PSAD、PSAD-TZ值以及患者的年龄作综合分析。展开更多
目的:自建评分法评估前列腺特异性抗原(prostate specific antigen,PSA)值处在灰区(PSA值灰区)的前列腺疾病患者为前列腺癌的风险度,并验证其诊断价值。方法:2017年4月至2019年11月期间,回顾性分析在我院行超声引导下经会阴前列腺穿刺...目的:自建评分法评估前列腺特异性抗原(prostate specific antigen,PSA)值处在灰区(PSA值灰区)的前列腺疾病患者为前列腺癌的风险度,并验证其诊断价值。方法:2017年4月至2019年11月期间,回顾性分析在我院行超声引导下经会阴前列腺穿刺活检的412例PSA值处于灰区(4~10μg/L)前列腺疾病患者的资料,应用U检验及卡方检验比较良、恶性前列腺疾病组间的年龄、前列腺体积、血清学指标、PSA密度(prostate specific antigen density,PSAD)及直肠腔内超声(transrectal ultrasonography,TRUS)影像学表现差异,绘制受试者操作特征(receiver operating characteristic,ROC)曲线,确定有效参数曲线下面积最大时的临界值,建立PSA值灰区前列腺疾病患者恶性风险度评分,以前列腺穿刺活检为标准,绘制ROC曲线评估其诊断效能。结果:良、恶性前列腺疾病组间,年龄、前列腺体积、游离/总前列腺特异性抗原比值(free/total prostate specific antigen ratio,f/t PSA)、PSAD及TRUS检出可疑结节方面差异均有统计学意义(P均<0.05)。应用年龄、前列腺体积、f/t PSA、PSAD及TRUS影像表现建立PSA值灰区前列腺疾病患者恶性风险度评分,总分0~5分患者的前列腺癌风险分别为3.12%、9.57%、18.02%、30.48%、53.45%及100%,采用该评分法(>2.5分)在PSA值灰区患者中诊断前列腺癌的ROC曲线下面积为0.759,灵敏度为71.41%,特异度为67.39%,优于其他单项指标。结论:本研究新建立的前列腺疾病恶性风险度评分能有效评估PSA值处于灰区患者的前列腺癌风险。展开更多
文摘Aim: To investigate whether the measurement of serum zinc may improve the detection of prostate cancer (PCa) in men who had total prostate-specific antigen (PSA) levels higher than 4.1 ng/mL. Methods: A mass screening for PCa of 3940 men over 50 years old was undertaken using total serum PSA. Of the 190 men (4.8 %) with elevated PSA, 143 (3.6 %) underwent a transrectal ultrasonography (TRUS)-guided biopsy of the prostate, and 42 men (1% of total and 29.3 % of men undergoing biopsy) were found to have cancer. The areas under the receiver operating characteristic curves (ROC-AUC) were used to compare the diagnostic power of cancer detection by means of serum zinc, and free PSA/total PSA ratio (fit). Results: The men with levels of serum zinc that ranged from 40 ng/mL-60 ng/mL, had an age-adjusted odds ratios(OR) of 5.0. A cutoff value of 100 gg/mL for-serum zinc concentration provided a sensitivity of 90.5 % and a specificity of 32.7 % in elevated PSA range, and a sensitivity of 93.3 % and specificity of 27.1% in gray zone, respectively. In the gray zone ranges of 4.1 ng/mL-10.0 ng/mL, the ROC-AUC for zinc was 73.0 % higher than 62.7 % of f/t PSA ratio and 56.7 % of total PSA. Conclusion: PCa displays a lower serum zinc concentration. The measurement of zinc levels improves PCa detection in the gray zone compared with the f/t PSA ratio and total PSA. (Asian J Androl 2005 Sep; 7: 323-328)
文摘目的:探讨前列腺特异抗原(prostate specific antigen,PSA)、前列腺特异性抗原密度(prostate specific antigen density,PSAD)及移行带前列腺特异性抗原密度(pros-tate specific antigen density of transition zone,PSAD-TZ)用于前列腺癌筛选时前列腺体积和患者年龄因素对其的影响。方法:回顾性分析因PSA升高和(或)直肠指检异常疑诊前列腺癌而进行直肠前列腺穿刺活组织检查(活检)的295例男性患者的临床资料,根据活检结果分为BPH组(193例)和前列腺癌组(102例),比较2组中不同前列腺体积以及不同年龄段的PSA、PSAD及PSAD-TZ水平。结果:当前列腺体积小于或等于50mL时,BPH组的PSA、PS-AD及PSAD-TZ值与前列腺癌组比较差异均有统计学意义(P<0.01);当前列腺体积大于50mL时,2组的PSA值比较差异无统计学意义(P>0.05),但PSAD及PSAD-TZ值比较差异有统计学意义(均为P<0.01)。2组的PSA值随着年龄的增加而升高(均为P<0.01)。在50~59岁者和60~69岁者中,2组的PSAD及PSAD-TZ值比较差异均有统计学意义(P<0.05~0.01);在70~79岁者中,2组的PSAD及PSA-TZ值比较差异无统计学意义。结论:当前列腺体积小于或等于50mL时,检测PSA、PSAD及PSAD-TZ值对前列腺癌的筛选有重要意义,而前列腺体积大于50mL时,需结合PSAD、PSAD-TZ值以及患者的年龄作综合分析。
文摘目的:自建评分法评估前列腺特异性抗原(prostate specific antigen,PSA)值处在灰区(PSA值灰区)的前列腺疾病患者为前列腺癌的风险度,并验证其诊断价值。方法:2017年4月至2019年11月期间,回顾性分析在我院行超声引导下经会阴前列腺穿刺活检的412例PSA值处于灰区(4~10μg/L)前列腺疾病患者的资料,应用U检验及卡方检验比较良、恶性前列腺疾病组间的年龄、前列腺体积、血清学指标、PSA密度(prostate specific antigen density,PSAD)及直肠腔内超声(transrectal ultrasonography,TRUS)影像学表现差异,绘制受试者操作特征(receiver operating characteristic,ROC)曲线,确定有效参数曲线下面积最大时的临界值,建立PSA值灰区前列腺疾病患者恶性风险度评分,以前列腺穿刺活检为标准,绘制ROC曲线评估其诊断效能。结果:良、恶性前列腺疾病组间,年龄、前列腺体积、游离/总前列腺特异性抗原比值(free/total prostate specific antigen ratio,f/t PSA)、PSAD及TRUS检出可疑结节方面差异均有统计学意义(P均<0.05)。应用年龄、前列腺体积、f/t PSA、PSAD及TRUS影像表现建立PSA值灰区前列腺疾病患者恶性风险度评分,总分0~5分患者的前列腺癌风险分别为3.12%、9.57%、18.02%、30.48%、53.45%及100%,采用该评分法(>2.5分)在PSA值灰区患者中诊断前列腺癌的ROC曲线下面积为0.759,灵敏度为71.41%,特异度为67.39%,优于其他单项指标。结论:本研究新建立的前列腺疾病恶性风险度评分能有效评估PSA值处于灰区患者的前列腺癌风险。