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Semen characteristics and inflammatory mediators in infertile men with different clinical diagnoses.

Authors :
Moretti, E.
Cosci, I.
Spreafico, A.
Serchi, T.
Cuppone, A. M.
Collodel, G.
Source :
International Journal of Andrology; Dec2009, Vol. 32 Issue 6, p637-646, 10p, 2 Charts
Publication Year :
2009

Abstract

This study was aimed at investigating whether semen characteristics in different clinical diagnoses of infertility are associated with PMN elastase, IL-6, IL-8, IL-1β and TNFα levels detected in seminal plasma. Sixty-eight patients were divided into groups according to their clinical diagnosis: idiopathic infertility (group I), varicocele with infections (group II), varicocele (group III), infections (group IV), controls (group V). Physical examination and scrotal Eco-color Doppler was used to detect the varicocele. Patients with positive bacteriological semen analysis were considered as having an infection of the male reproductive tract. Samples were examined by light microscopy and transmission electron microscopy (TEM). TEM data were quantified with a mathematical formula furnishing a fertility index and the percentage of sperm apoptosis, immaturity and necrosis. PMN elastase/α1-PI complex levels were determined by ELISA and IL-6, IL-8, IL-1β, TNFα by Bio-Plex Cytokine assay. Sperm concentration (I-II: p < 0.005; III-IV: p < 0.0001), motility (I-IV: p < 0.0001) and the fertility index (I: p < 0.005; II-IV: p < 0.0001) were significantly lower in the groups vs. controls, whereas sperm pathologies, except for apoptosis, were significantly higher in group I and apoptosis and necrosis were higher in group III. An increase in immaturity ( p < 0.005) with a decrease in necrosis ( p < 0.005) were observed in group III vs. group IV. Significantly higher levels of inflammatory mediators were detected in groups III and IV vs. controls. Despite a broad relationship among different inflammatory mediators, no correlation was found among them and the semen parameters, including indices from TEM analysis. In conclusion, patients with idiopathic infertility showed altered semen quality and normal levels of inflammatory mediators. Genitourinary infection and varicocele induced an inflammatory effect which could play a detrimental role in spermatogenesis, revealed by a decrease in sperm motility and the fertility index, concomitant with an increase in immaturity mainly in varicocele and necrosis in infection. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
01056263
Volume :
32
Issue :
6
Database :
Complementary Index
Journal :
International Journal of Andrology
Publication Type :
Academic Journal
Accession number :
45007000
Full Text :
https://doi.org/10.1111/j.1365-2605.2008.00911.x