ArticleBiology2026
Low Testosterone and Sperm Quality Alterations: A Prospective Study of Sperm DNA Fragmentation and Chromatin Condensation in Infertile Men.
Article in Biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
2 citing papers in PubMed.
- Metabolic Syndrome and Male Infertility: The Role of Obesity and Chronic Inflammation.Biomedicines · 2026Review
- Relative Sertoli-cell FSH hyporesponsiveness as a potential contributor to sperm DNA fragmentation: a hypothesis-driven narrative review and proposal of the FERTILE framework.Frontiers in urology · 2026Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
(1) Background: Testosterone plays a key role in spermatogenesis and in maintaining semen quality and sperm DNA integrity. Consequently, reduced testosterone levels may disrupt these processes and contribute to male infertility. This study aimed to evaluate the impact of low testosterone levels on semen parameters, sperm DNA fragmentation, and chromatin condensation; (2) Methods: This was a prospective study that included 214 men aged 25-45 years undergoing infertility evaluation. Participants were classified into two groups according to serum testosterone levels: low testosterone and normal testosterone. Total testosterone was determined using electrochemiluminescence immunoassay. Semen analysis was carried out according to the WHO 2021 guidelines. The DNA fragmentation index was assessed using the TUNEL assay. The sperm decondensation index was evaluated by aniline blue staining; (3) Results: Men with low serum total testosterone levels (<2.64 ng/mL) exhibited significantly impaired semen parameters compared with those with normal testosterone levels. Serum total testosterone was positively correlated with sperm concentration (rs = 0.43,
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Registered trials
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