Increased IL-18 levels in seminal plasma of infertile men with genital tract infections.
Links Increased IL-18 levels in seminal plasma of infertile men with genital tract infections. Matalliotakis IM, Cakmak H, Fragouli Y, Kourtis A, Arici A, Huszar GAm J Reprod Immunol. 2006 Jun;55(6):428-33. Links Increased IL-18 levels in seminal plasma of infertile men with genital tract infections. Matalliotakis IM, Cakmak H, Fragouli Y, Kourtis A, Arici A, Huszar G. Division of Reproductive Endocrinology and Infertility, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA. matakgr@yahoo.com PROBLEM: Interleukin (IL)-18 is a novel cytokine, previously known as interferon (IFN)-gamma inducing factor. We evaluated the levels of IL-18 and IFN-gamma in seminal plasma (SP) of fertile and infertile men. METHOD OF STUDY: Semen samples were obtained by masturbation from 80 men, and were examined for the levels of IL-18 and IFN-gamma by enzyme-linked immunosorbent assay. Seven groups were included: (i) fertile men (n = 18), (i) infertile men with genital tract infections (n = 17), (iii) with varicocele (n = 15), (iv) with Klinefelter syndrome (n = 6), (v) with cryptorchidism (n = 7), (vi) with mumps orchitis (n = 7), and (vii) with idiopathic testicular lesions (n = 10). RESULTS: Mean levels of IL-18 were higher in SP from infertile men with genital tract infections compared with SP from other groups except Klinefelter syndrome (P .
Division of Reproductive Endocrinology and Infertility, Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University School of Medicine, New Haven, CT, USA. matakgr@yahoo.com
PROBLEM: Interleukin (IL)-18 is a novel cytokine, previously known as interferon (IFN)-gamma inducing factor. We evaluated the levels of IL-18 and IFN-gamma in seminal plasma (SP) of fertile and infertile men. METHOD OF STUDY: Semen samples were obtained by masturbation from 80 men, and were examined for the levels of IL-18 and IFN-gamma by enzyme-linked immunosorbent assay. Seven groups were included: (i) fertile men (n = 18), (i) infertile men with genital tract infections (n = 17), (iii) with varicocele (n = 15), (iv) with Klinefelter syndrome (n = 6), (v) with cryptorchidism (n = 7), (vi) with mumps orchitis (n = 7), and (vii) with idiopathic testicular lesions (n = 10). RESULTS: Mean levels of IL-18 were higher in SP from infertile men with genital tract infections compared with SP from other groups except Klinefelter syndrome (P < 0.05). However, no significant differences could be detected for IFN-gamma. A significant positive correlations was found between IL-18 and IFN-gamma in total patient population (P < 0.001). Moreover, a negative correlation was observed between IL-18 and sperm concentrations, and motility (P < 0.01 and < 0.03, respectively). Furthermore, there was a positive and statistically significant association between IL-18 and IFN-gamma levels in SP of infertile men with genital tract infections (P < 0.0001). However, there was no relationship between IL-18 and IFN-gamma, and semen parameters in the same group. CONCLUSION: SP IL-18 levels were increased in men with urogenital infections. Thus, the elevated expression of IL-18 in SP may be used as a diagnostic marker in the male genital tract infections.
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