Reliable Detection of Excessive Sperm Ros Production in Subfertile Patients: How Many Men with Oxidative Stress?

被引:0
作者
Calamai, Costanza [1 ]
Chelli, Elena [1 ]
Ammar, Oumaima [2 ]
Tanturli, Michele [1 ]
Vignozzi, Linda [1 ,3 ]
Muratori, Monica [1 ]
机构
[1] Univ Florence, Dept Expt & Clin Biomed Sci Mario Serio, Viale Pieraccini 6, I-50139 Florence, Italy
[2] Univ Florence, Careggi Hosp, Dept Hlth Sci, Sect Obstet & Gynecol, I-50134 Florence, Italy
[3] AOU Careggi, Womens Endocrinol & Gender Incongruence Unit, Androl, I-50134 Florence, Italy
关键词
oxidative stress; male infertility; routine semen analysis; sperm DNA fragmentation; leukocytospermia; semen viscosity; bacteriospermia; DNA-DAMAGE; INFERTILE MEN; HUMAN SPERMATOZOA; CIGARETTE-SMOKE; SEMINAL PLASMA; TNF-ALPHA; SEMEN; GENERATION; LEUKOCYTES; INFECTION;
D O I
10.3390/antiox13091123
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
Sperm oxidative stress has been extensively associated to male infertility. However, tests to detect this parameter have not been yet introduced in clinical practice and no definitive data are present on the extent of oxidative stress in male infertility. In this study, we used a novel and reliable flow cytometric method to reveal sperm ROS production in subfertile patients (n = 131) and in healthy donors (n = 31). Oxidative stress was higher in subfertile patients (14.22 [10.21-22.08]%) than in healthy donors (9.75 [8.00-14.90]% (p < 0.01)), but no correlation was found with age, semen quality or sDF. We also failed to detect an increase in sperm ROS production with semen viscosity or leukocytospermia, but a sharp impact of semen bacteria was evident (with bacteria: 31.61 [14.08-46.78]% vs. without bacteria: 14.20 [10.12-22.00]%, p < 0.01). Finally, after establishing a threshold as the 95th percentile in healthy donors, we found that 29% of subfertile patients exceeded this threshold. The percentage decreased to 25.56% when we excluded subjects with bacteriospermia and increased to 60.87% when only these patients were considered. In conclusion, 29% of subfertile patients showed an excessive sperm ROS production. Surprisingly, this parameter appears to be independent from routine semen analysis and even sDF determination, promising to provide additional information on male infertility.
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页数:14
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