research Effect of Testosterone, Dihydrotestosterone, Estradiol, and Cortisol on the Quality of Fresh and Cryopreserved Stallion Sperm
Higher testosterone harms sperm motility, while higher estradiol improves sperm survival.
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research 5-Aminolevulinic Acid Improves Chicken Sperm Motility
5-Aminolevulinic acid can help chicken sperm move better at the right amount.
research Time Lags Between Various Maturity Measures and Spermarche
Certain maturity signs appear before and after the first release of sperm in boys.
research Response to Comments on the Scientific Opinion on the Substantiation of a Health Claim Related to Spermidine and Prolongation of the Growing Phase (Anagen) of the Hair Cycle Pursuant to Article 13(5) of Regulation (EC) No 1924/2006
The EFSA maintained its view that spermidine's effect on hair growth is related to disease treatment and does not meet the health claim criteria.
research Finasteride and Sperm Concentration: Rapid Systematic Review
Finasteride appears safe for long-term sperm concentration, but more research is needed for clear conclusions.
research The Effects of Finasteride on the Expression of Dazl, Tsga10, Sycp3, Prm2 Genes During Spermatogenesis in Testes of NMRI Mice
Finasteride, at doses of 5mg or higher, may negatively affect male fertility by reducing the expression of certain genes involved in sperm production.
research Comparison of In Vitro Fertilization/Intracytoplasmic Sperm Injection Cycle Outcome in Patients with and without Polycystic Ovary Syndrome: A Modified Poisson Regression Model
Women with PCOS have a similar chance of getting pregnant using assisted reproductive treatment as those without PCOS.
research SHISA6 Confers Resistance to Differentiation-Promoting Wnt/β-Catenin Signaling in Mouse Spermatogenic Stem Cells
SHISA6 helps maintain certain stem cells in mouse testes by blocking signals that would otherwise cause them to differentiate.
research What Should It Take to Describe a Substance or Product as 'Sperm-Safe'?
Products should be called 'sperm-safe' only after thorough, well-designed tests.
research Suppression of Spermatogenesis with Desogestrel and Testosterone Pellets Is Not Enhanced by Addition of Finasteride
research The Effect of Finasteride on Spermatogenesis of Mesocricetus Auratus
Finasteride causes sperm production decrease in Mesocricetus auratus.
research Clomiphene Citrate Rescue of Spermatogenesis in Men with Infertility While Remaining on Finasteride: A Case Report
Clomiphene citrate improves fertility in men taking finasteride for hair loss.
research The Voices of Adult Offspring of Sperm Donation: Forces for Change Within Assisted Reproductive Technology in the United States
Adult offspring of sperm donation generally feel positive about their conception and view the donor as their biological father.
research Impact of Microbial Infection on Sperm Parameters of Seminal Bacteria in Asymptomatic Subfertile Males
Seminal bacteria can lower sperm quality in subfertile men.
research Impact of Dutasteride on Spermatogenesis and Oxidative Status in Rats
Dutasteride did not change rat spermatogenesis or oxidative stress but needs more research.
research Chronic Treatment With Finasteride Daily Does Not Affect Spermatogenesis Or Semen Production In Young Men
Finasteride daily doesn't affect sperm production or semen in young men.
research The First Visit: Consultation and Workup Before Sperm Banking
A thorough initial check-up is essential before sperm banking to ensure the best chance of preserving good quality sperm.
research Finasteride: Does It Affect Spermatogenesis and Pregnancy?
research Chronic Treatment with Finasteride Daily Does Not Affect Spermatogenesis or Semen Production in Young Men
research Recent Advances in Understanding and Managing Male Infertility
Losing weight, fixing varicoceles, and using advanced sperm selection methods improve male infertility treatment outcomes.
research Finasteride Use in the Male Infertility Population: Effects on Semen and Hormone Parameters
Finasteride can reduce fertility in some men, but stopping it increases sperm count.
research A Combined Regimen of Cyproterone Acetate and Testosterone Enanthate as a Potentially Highly Effective Male Contraceptive
The combination of cyproterone acetate and testosterone enanthate is highly effective in preventing sperm production and could be a good reversible male contraceptive.
research Inhibition of Polyamine Synthesis Alters Hair Follicle Function and Fiber Composition
Polyamines, especially spermidine, are essential for hair growth.
research Finasteride-Associated Male Infertility
Finasteride may worsen infertility in men with existing issues, but stopping it can improve sperm health.
research Evaluation of the Effect of Injection of Dutasteride as a Mesotherapeutic Tool in the Treatment of Androgenetic Alopecia in Males
Dutasteride mesotherapy helps treat male hair loss but may harm sperm and sexual function.
research Is Age at Puberty Associated with Semen Quality and Reproductive Hormones in Young Adult Life?
Men who start puberty later may have lower sperm quality and different hormone levels in adulthood.
research 5α-Reductase Inhibitors and Male Reproduction
5α-Reductase inhibitors can negatively affect male sexual function and, in some cases, significantly reduce sperm count, but these effects may be reversible.
research Secondary Infertility Due to Use of Low-Dose Finasteride
Low-dose finasteride may cause fertility issues, but stopping it can improve sperm quality and lead to pregnancy.
research Androgen Levels and Apoptosis in the Testis During Postnatal Development of Finasteride-Treated Male Rat Offspring
Finasteride treatment in male rats can reduce fertility and affect sperm development in their offspring.
research Adverse Effects of Finasteride: Myths and Realities. An Updated Review
Finasteride can cause sexual dysfunction, sperm changes, and affect bone density and metabolism.