前列腺按摩液中IL-8和TNF-α测定在慢性前列腺炎诊断、分型中的临床意义

目的 :探讨检测前列腺按摩液 (EPS)中细胞因子白细胞介素 8(IL 8)和肿瘤坏死因子α(TNF α)在慢性前列腺炎诊断、分型中的意义。　方法 :ELISA法检测 78例临床诊断的慢性前列腺炎患者 [其中慢性前列腺炎(CBP)组 12例 ,慢性非细菌性前列腺炎 /慢性骨盆疼痛综合征 (CPPS)ⅢA组 38例 ,CPPSⅢB组 2 8例 ]和 12例正常对照者EPS中IL 8和TNF α浓度。分析各组EPS中IL 8和TNF α浓度差异。　结果 :CBP组和CPPSⅢA组EPS中IL 8水平 [(10 96 7.5± 3477.7) pg/ml;(92 6 8.4± 2 0 34.6 ) pg/ml]和TNF α水平 [(84 .1± 5 4 .7) pg/ml;(32 .6± 18.6 ) pg/ml]显著高于CPPSⅢB组和正常对照组EPS中的IL 8水平 [(2 72 6 .1± 2 77.5 ) pg/ml;(2 80 0 .0± 32 0 .2 )pg/ml]和TNF α水平 [(12 .6± 7.1)pg/ml;(12 .9± 10 .1)pg/ml](P均 <0 .0 1)。　结论 :检测EPS中IL 8、TNF α水平可能有助于CBP、慢性非细菌性前列腺炎 /慢性骨盆疼痛综合征的分型诊断。

IL-8 and TNF-α in Prostatic Secretions as Indications in Evaluating Chronic Prostatitis

OBJECTIVE: To investigate the significance of the determination of IL-8 and TNF-alpha in prostatic secretions in the evaluation of chronic prostatitis. METHODS: IL-8 and TNF-alpha levels in EPS were evaluated by ELISA in 90 men: controls (n = 12), CBP (n = 12), CPPS IIIA (n=38), CPPS IIIB (n=28). And the difference was analyzed between CBP or CPPS IIIA and CPPS IIIB or controls. RESULTS: IL-8 and TNF-alpha levels in EPS were higher in men with CBP [(10967.5 +/- 3477.7) pg/ml, (84.1 +/- 54.7) pg/ml] or CPPS IIIA [(9268.4 +/- 2034.6) pg/ml and (32.6 +/- 18.6) pg/ml], but lower in men with CPPS IIIB [(2726.1 +/- 277.5) pg/ml, (12.6 +/- 7.1) pg/ml] or controls [(2800.0 +/- 320.2) pg/ml and (12.9 +/- 10.1) pg/ml] respectively. There was significant difference between CBP or CPPS IIIA and CPPS IIIB or controls (P < 0.01). CONCLUSION: IL-8 and TNF-alpha are elevated in the EPS of the men with CBP and CPPS IIIA, and provide a novel means for the identification and characterization of chronic nonbacterial prostatitis/chronic pelvic pain syndrome. The cut-points for IL-8 and TNF-alpha to discriminate CBP or CPPS IIIA from CPPS IIIB or controls need further investigation.