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Updated: May 29, 2026

The Examination of Peroxidase-Positive Leukocytes in Semen
Published on: January 19, 2024
Semen alterations and flow-citometry evaluation in patients with male accessory gland infections
S La Vignera1, R Condorelli, R D'Agata
1Section of Endocrinology, Andrology and Internal Medicine and Master in Andrological, Human Reproduction and Biotechnology Sciences, Department of Biomedical Sciences, University of Catania, Italy. sandrolavignera@email.it
Abstract:
Male accessory gland infections (MAGI) represent a major cause of male infertility mainly through the secretory dysfunction of the prostate, seminal vesicles, and epididymis. This study was undertaken to evaluate conventional and nonconventional sperm parameters in these patients, therefore 150 patients with MAGI were selected. Each of them underwent to two sperm analyses and evaluation of DNA fragmentation mitochondrial membrane potential (MMP), phosphatidylserine (PS) externalization, chromatin compactness, by flow cytometry. Results showed that patients with MAGI had a lower sperm progressive motility (11.4 ± 5.0 vs 34.0 ± 7.0%), and percentage of normal forms (9.0 ± 3.7 vs 33.0 ± 13.0%) compared to controls, instead, these patients showed higher number of seminal white blood cells (2.2 ± 1.0 vs 0.4 ± 0.6 106/ml). Patients with MAGI showed a higher number of spermatozoa with DNA fragmentation compared to controls (8.2 ± 3.0 vs 1.0 ± 1.0%). In addition, they have also a higher percentage of spermatozoa with low MMP (28.0 ± 4.0 vs 2.0 ± 2.0%). Patients with MAGI, showed a higher percentage of spermatozoa with PS externalization (8.0 ± 4.0 vs 3.0 ± 3.0%), an early sign of apoptosis, and lower percentage of viable spermatozoa (64.5 ± 12.0 vs 88.0 ± 10.0%). An increased percentage of spermatozoa with abnormal chromatin compactness (18.0 ± 4.0 vs 5.0 ± 3.0%) was found in patients with MAGI. In conclusion, patients with MAGI show alterations of conventional and biofunctional sperm parameters compared to controls. These results suggest to consider the flow cytometry evaluation among the diagnostic tools for male infertility.
Insights
Male accessory gland infections (MAGI) significantly impair sperm quality, reducing motility and normal forms while increasing DNA fragmentation and abnormal chromatin. Flow cytometry can help diagnose these male infertility issues.
Area of Science:
- Reproductive Medicine
- Andrology
- Infectious Diseases
Background:
- Male accessory gland infections (MAGI) are a primary cause of male infertility.
- MAGI lead to secretory dysfunction in the prostate, seminal vesicles, and epididymis.
Purpose of the Study:
- To evaluate conventional and nonconventional sperm parameters in patients with MAGI.
- To assess the utility of flow cytometry in diagnosing male infertility associated with MAGI.
Main Methods:
- 150 patients with MAGI underwent two sperm analyses.
- Flow cytometry was used to assess DNA fragmentation, mitochondrial membrane potential (MMP), phosphatidylserine (PS) externalization, and chromatin compactness.
Main Results:
- MAGI patients exhibited lower sperm progressive motility and normal forms, with higher seminal white blood cells.
- Increased DNA fragmentation, low MMP, PS externalization, and abnormal chromatin compactness were observed in MAGI patients.
- MAGI patients had a lower percentage of viable spermatozoa compared to controls.
Conclusions:
- Patients with MAGI demonstrate significant alterations in both conventional and biofunctional sperm parameters.
- Flow cytometry evaluation is suggested as a valuable diagnostic tool for male infertility in MAGI patients.
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