research Testosterone Is a Contraceptive and Should Not Be Used in Men Who Desire Fertility
Testosterone replacement therapy can prevent men from fathering children and should not be used by those wanting to stay fertile.
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research Family planning 2011: better use of existing methods, new strategies and more informed choices for female contraception
The conclusion is that there is a high demand for new contraceptives that provide both pregnancy prevention and protection against STIs, along with additional health benefits.
research The impact of SARS-CoV-2 and COVID-19 on male reproduction and men’s health
COVID-19 might affect male fertility, but more research is needed to understand the full impact.
research Male reproductive health after 3 months from SARS-CoV-2 infection: a multicentric study
COVID-19 temporarily affects male reproductive health, but sperm and testosterone levels generally return to normal after three months.
research Spermatozoa and Chronic Treatment with Finasteride: A TEM and FISH Study
Finasteride may negatively affect male fertility.
research Efectos adversos de finasteride: mitos y realidades. Una revisión actualizada
Finasteride can cause sexual dysfunction, sperm changes, and affect bone density and metabolism.
research Salivary testosterone levels in infertile men
Men with low or no sperm count have lower salivary testosterone levels, and saliva testing can measure their testosterone well.
research Nonclassic Congenital Adrenal Hyperplasia
The document concludes that Nonclassic Congenital Adrenal Hyperplasia requires personalized treatment plans to manage symptoms and fertility, with glucocorticoids being a common therapy.
research The adverse effects of commonly used medications on male fertility: a comprehensive review
Some common medications may harm male fertility by affecting hormones, sperm production, 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 Polycystic Ovary Syndrome Phenotypes and Infertility Treatment
Different PCOS types respond uniquely to infertility treatments, with some having lower pregnancy rates and higher risks of complications.
research From bench to babies – drug development for male subfertility
New methods may speed up drug development for male subfertility.
research Finasteride in Young Men: Effects on Semen and Hormones?
Finasteride improves hair but may reduce sperm quality at higher doses.
research The Effect of 5α-Reductase Inhibition with Dutasteride and Finasteride on Semen Parameters and Serum Hormones in Healthy Men
Dutasteride and finasteride may reduce sperm count and volume but don't affect movement or shape; effects are reversible after stopping.
research Effects of the chronic use of finasteride on testicular weight and spermatogenesis in Wistar rats
Finasteride doesn't change rat testicle weight or sperm production.
research CHRONIC TREATMENT WITH FINASTERIDE DAILY DOES NOT AFFECT SPERMATOGENESIS OR SEMEN PRODUCTION IN YOUNG MEN
Finasteride doesn't harm male fertility or sperm quality, but may slightly reduce ejaculate volume.
research Expression of E-SOD, GPX5 mRNAs and immunoexpression of Cu/ZnSOD in epididymal epithelial cells of finasteride-treated rats
Finasteride changes antioxidant enzyme expression, possibly affecting sperm protection in rats.
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 Spontaneous fertility in a male patient with testotoxicosis despite suppression of FSH levels
A man with testotoxicosis was fertile despite low FSH levels, suggesting high testosterone may allow sperm production without FSH.
research Physiology of Testicular Function
The testes produce sperm and hormones essential for male development.
research Polydeoxyribonucleotide in Skincare and Cosmetics: Mechanisms, Therapeutic Applications, and Advancements Beyond Wound Healing and Anti-aging
PDRN from trout sperm helps skin and hair regeneration but is costly and complex to produce.
research Testosterone regulates levels of cystic fibrosis transmembrane regulator, adenylate cyclase, and cAMP in the seminal vesicles of orchidectomized rats
Testosterone boosts fluid and electrolyte secretion in seminal vesicles, aiding sperm function.
research The association of medications and supplements with human male reproductive health: a systematic review
Some medications and supplements can affect male fertility, with some improving and others harming sperm quality.
research The transcriptional repressor CDP (Cutl1) is essential for epithelial cell differentiation of the lung and the hair follicle
CDP is crucial for lung and hair follicle cell development.
research Decreased fertility in male rats administered the 5α-reductase inhibitor, finasteride, is due to deficits in copulatory plug formation
Finasteride reduces male rat fertility by causing issues with copulatory plug formation.
research Total prostate volume as risk factor for semen pathologies in ageing male
Larger prostate size in older men may be linked to poorer semen quality and fertility issues.
research Group IID, IIE, IIF and III secreted phospholipase A2s
Different sPLA2 enzymes affect immunity, skin and hair health, reproduction, and may be potential targets for therapy.
research The effects of oestrogens on linear bone growth
Oestrogens are key for bone growth during puberty in both boys and girls.
research Physiologic functions of PP2A: Lessons from genetically modified mice
Mice studies show that Protein Phosphatase 2A is crucial for cell growth, development, and disease prevention.
research A Case of Familial Male-limited Precocious Puberty with a Novel Mutation
A boy with a rare form of early puberty caused by a new gene mutation responded well to treatment aimed at reducing testosterone and preserving adult height.