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Updated: Aug 23, 2026

Accurate and Simple Measurement of the Pro-inflammatory Cytokine IL-1β using a Whole Blood Stimulation Assay
Published on: March 1, 2011
[Clinical evaluation of IL-1beta and TNF-alpha in prostatic secretions for chronic prostatitis]
Jinyi Yang1, Lin Ye, Hongbo Jiang
1Department of Urology, Friendship Hospital of Dalian, Dalian, Liaoning 116001, China. lishao89@hotmail.com
Objective:
To determine the clinical significance of interleukin-1beta (IL-1beta) and tumor necrosis factor-alpha( TNF-alpha) in expressed prostatic secretions(EPS) for chronic prostatitis.
Methods:
Prostatic secretions IL-1beta and TNF-alpha were evaluated for 34 patients with chronic prostatitis, 10 with asymptomatic inflammatory prostatitis, 12 with benign prostatic hyperplasia (BPH) and 8 health controls by enzyme-linked immunosorbent assay (ELISA).
Results:
IL-1beta and TNF-alpha levels in EPS in the patients of chronic prostatitis with WBC > or = 10/HP and asymptomatic inflammatory prostatitis were obviously higher than those of chronic prostatitis with WBC < 10/HP, BPH and health controls, (P < 0.05 and P < 0.02). There was a correlation between IL-1beta and TNF-alpha (P < 0.003) but none between WBC and IL-1beta or TNF-alpha.
Conclusion:
Cytokines are frequently elevated in EPS in men of chronic prostatitis with high WBC and asymptomatic inflammatory prostatitis, which provides a novel means different from traditional methods based on WBC for the identification of men with chronic prostatitis.
