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In this animal study, finasteride exposure led to impaired spermatogenesis in rats, while the novel compound DA-9401, derived from three medicinal herbs, demonstrated potential in improving sperm parameters and reducing testicular apoptosis when used alone or with finasteride.

This paper outlines that treatments reducing estrogen for estrogen receptor-positive breast cancer, such as SERMs and AIs, significantly improve life expectancy but may lead to alopecia in 15% to 25% of patients.

This study found that rats fed diets with heated corn or peanut oil showed signs of toxicity, including liver and kidney weight increases, diarrhea, and ceased spermatogenesis, compared to those consuming fresh oils.

This study observed that male-to-female skin grafts were consistently rejected in mice due to sex-linked histocompatibility antigens, suggesting potential applications for distinguishing between X- and Y-chromosome-carrying sperm.

In this laboratory study with rats, treatment with finasteride reduced dihydrotestosterone levels and fertility parameters, with a 30-day recovery period proving insufficient to fully restore sperm function and fertility.

In this study, treatment with finasteride altered the expression patterns of antioxidant enzymes in the epididymis of rats, potentially affecting its protective function for spermatozoa.

This article reviews the impact of aging and related urologic conditions on male fertility, highlighting the effects of various treatments on sperm parameters and recommending pre-treatment counseling for fertility preservation. It reports no new clinical results.

This study found that delmadinone acetate and finasteride caused a reversible suppression of prostate gland activity in male dogs, with delmadinone acetate also temporarily altering epididymal sperm maturation.

This study observed that numerical chromosomal aberrations were more common in men with severe male factor infertility and azoospermia compared to those with other sperm quality issues, while chromosomal translocations were significantly associated with oligoasthenozoospermia, highlighting important genetic counseling considerations.

This study found that finasteride treatment of male rats led to changes in their male offspring's testicular gene expression, potentially affecting sperm function in response to odorant-like signals.

This review examines the impact of biotin, vitamin B12, and zinc on male reproduction, emphasizing their role in spermatogenic failure, but reports no new clinical results.

This study found that prolonged use of finasteride and dutasteride in young men with androgenic alopecia is linked to a decline in semen quality over time, particularly affecting sperm motility and DNA integrity, with dutasteride showing a slightly greater impact than finasteride.

This study found that administering lycopene to rats provided significant protection against the testicular damage caused by finasteride, as indicated by improved sperm parameters, and reduced oxidative stress and apoptosis markers.

This study found that long-term use of dutasteride in men taking it for androgenetic alopecia may lead to persistent decreases in semen volume and sperm motility, potentially impacting fertility, with significant impairment observed after 17.8 to 20.3 months of treatment.

This study found that hesperidin, a bioflavonoid, mitigated the negative effects of finasteride on sperm health and testicular structure in male Wistar rats by reducing oxidative stress and apoptosis and supporting testicular antioxidant capacity.

This review found that both finasteride and dutasteride are effective for treating hair loss in men with androgenetic alopecia, with dutasteride showing higher efficacy, but noted unclear clinical significance regarding potential negative impacts on reproduction, including possible sexual dysfunction and effects on spermatogenesis.

In this study on Sprague-Dawley rats, 0.60 mg/kg doses of L-Se-methylselenocysteine and sodium selenite were associated with liver toxicity and reduced sperm motility, while Se-enriched peptides showed no observable adverse effects up to 0.60 mg/kg.

In this retrospective study at Toyama University Hospital, amoxapine was reported to significantly improve semen volume, sperm concentration, and total sperm count in 17 men with ejaculatory disorders, with no observed side effects over an average of 13 months of therapy.

The April 2014 issue of "Fertility and Sterility" discussed various reproductive health topics, including hormone therapy benefits, sperm and genetic factors in male infertility, and the link between PCOS and diabetes.

This study examines the pathogenetic role of hormonal imbalances in chronic prostatitis, highlighting that decreased androgens and increased estrogens contribute to prostate inflammation and impaired spermatogenesis, and explores hormonal therapies' potential for restoring reproductive function.

This study observed that complementary and alternative medicine, often marketed to men as ways to enhance "optimization," "recovery," and "vitality," has become mainstream, with many believing in its benefits for testosterone, erections, libido, hair loss, and sperm quality.

This review evaluates previous studies on androgen-progestin combinations for male contraception, concluding that long-acting injectable formulations appear promising due to their effectiveness and minimal short-term adverse effects.

This review suggests that PDRN shows promise as a safe and versatile regenerative agent for wound healing and other dermatological applications, based on its dual mechanisms and clinical evidence of efficacy.

This article reviews the potential uses of PDRN in regenerative and aesthetic medicine, noting promising results in various treatments but highlighting the need for further long-term studies to confirm their safety and effectiveness.

This review discusses the potential of polydeoxyribonucleotide (PDRN) for various dermatological treatments and highlights its significant effects on wound healing, anti-aging, acne scars, and hair loss, but emphasizes the need for further clinical studies.

This article explores the potential mechanisms by which polydeoxyribonucleotide (PDRN) could improve skin quality, slow aging, and enhance skin regeneration, but reports no new clinical findings.

In this study, administering 5alpha-reductase inhibitors reduced dihydrotestosterone levels and was associated with mild, reversible decreases in semen parameters in healthy men.

This review examines experimental and clinical evidence on PDRN, a drug derived from salmon DNA that acts via the adenosine A2A receptor and shows promise for tissue repair and treatment of diabetic foot ulcers in regenerative medicine.

This study found that essential fatty acid deficiency in rabbits leads to significant degeneration of gonadal tissue, possibly due to impaired anterior pituitary gland function.

This article reviews the discovery and various physiological effects of cyproterone acetate, reporting its established indications for several androgen-driven conditions but providing no new clinical data.