A Study to Validate the Relevance of Semen F 2 -Isoprostanes on Human Male Infertility

Elena Moretti, Cinzia Signorini, Fabio Ferretti, Daria Noto and Giulia Collodel
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Elena Moretti: Department of Molecular and Developmental Medicine, University of Siena, Policlinico Le Scotte, Viale Bracci, 14, 53100 Siena, Italy
Cinzia Signorini: Department of Molecular and Developmental Medicine, University of Siena, Policlinico Le Scotte, Viale Bracci, 14, 53100 Siena, Italy
Fabio Ferretti: Department of Medical and Surgical Sciences and Neurosciences, University of Siena, Policlinico Le Scotte, Viale Bracci, 14, 53100 Siena, Italy
Daria Noto: Department of Molecular and Developmental Medicine, University of Siena, Policlinico Le Scotte, Viale Bracci, 14, 53100 Siena, Italy
Giulia Collodel: Department of Molecular and Developmental Medicine, University of Siena, Policlinico Le Scotte, Viale Bracci, 14, 53100 Siena, Italy

IJERPH, 2022, vol. 19, issue 3, 1-8

Abstract: F 2 -isoprostanes (F 2 -IsoPs), byproducts of arachidonic acid oxidation, are one of the most reliable indices for assessing lipid peroxidation in vivo. This study aimed at evaluating the seminal F 2 -IsoP level in 147 patients with different reproductive conditions (varicocele, urogenital infection, idiopathic infertility) and 45 fertile controls to establish a cut-off value discriminating physiological and pathological ranges. Semen analyses were performed following WHO guidelines; F 2 -IsoP levels were measured by gas chromatography/negative-ion chemical ionization tandem mass spectrometry. Considering the whole group of patients, F 2 -IsoPs correlated negatively with normal morphology (r = −0.283, p < 0.01), viability (r = −0.245, p < 0.01), total progressive motility (r = −0.309, p < 0.01) and rapid motility (r = −0.535, p < 0.01). The area under the ROC curve for F 2 -IsoP levels was 0.839, indicating a good performance of the test; the Youden index showed a cut-off value of 29.96 ng/mL. Fertile men (except one) were distributed in the group of patients with F 2 -IsoP level < 29.96 ng/mL. Varicocele and urogenital infection groups showed the highest levels of F 2 -IsoPs in semen. For the first time, a cut-off for F 2 -IsoPs is identified in human semen. It allows discriminating different male infertility conditions by the semen F 2 -IsoP amounts, as an additional parameter for clinical evaluation.

Keywords: idiopathic infertility; male infertility; seminal F 2 -isoprostanes; sperm motility; varicocele; urogenital infections (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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