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Nestin marks cells that can become a specific type of skin cell in hair follicles of both developing and adult mice.

Nestin identifies specific progenitor cells in hair follicles that can become outer root sheath cells.

Nestin-expressing cells turn into a specific type of skin cell in hair follicles during development and in adults.

Gene mutations can cause problems in male genital development.

The testes produce important hormones like testosterone and others that play key roles in male body functions.

Finasteride exposure harms tadpole reproduction and hormone balance.

Testosterone replacement therapy can prevent men from fathering children and should not be used by those wanting to stay fertile.

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.

The document explains how male reproductive hormones work and affect the body.

The document explains how the male reproductive system works, its role in making testosterone, and how conditions like obesity can disrupt it, leading to low testosterone and fertility issues.

New genes and pathways are important for testosterone production and male sexual development.

Testosterone therapy aims to treat hormone deficiencies and various conditions safely and effectively, but requires careful patient monitoring due to potential side effects.

New male hormonal contraceptives show promise but need more research on long-term effects and funding for larger trials.

Ficus carica extract improved fertility in rats and may help with certain health conditions.

Finasteride reduces sperm count and quality and alters hormone levels in mice.

Giving melatonin to sheep before the non-breeding season can improve their chances of reproducing in northwest Mexico.

PNKP is essential for keeping adult mouse progenitor cells healthy and growing normally.

Finasteride doesn't harm male fertility or sperm quality, but may slightly reduce ejaculate volume.

Betacoronaviruses, like COVID-19, may cause hormone system dysfunction and affect disease susceptibility and severity.

The document does not determine if adults with aphallia are fertile.

Basonuclin 2 is vital for the development of facial bones, hair follicles, and male germ cells in adult mice, and its absence can lead to dwarfism and abnormal follicles.

Wait 3 months after COVID-19 before trying assisted reproduction and further research is needed on COVID-19's effects on male hormones and fertility.

The girl's unexpected pubic hair growth led to a diagnosis different from complete androgen insensitivity syndrome.

Sex hormones like estrogen and testosterone may affect COVID-19 severity differently in men and women, potentially influencing prevention and treatment strategies.

The document explains how sperm cells are produced, the role of testosterone in this process, and how toxins can reduce sperm count and fertility.

Finasteride treatment changes Cx43 in rat testes, possibly causing fertility issues.

Neuronatin is found in specific cells within rat testis, hair follicles, tongue, and pancreas, suggesting it has various roles in tissue development and function.

Resveratrol helps prevent finasteride-induced damage in male rats, improving reproductive function.

The guideline recommends mental health involvement in diagnosing gender identity disorder and outlines hormone and surgical treatment protocols, emphasizing safety, informed consent, and long-term monitoring.

Woodhouse-Sakati syndrome often causes sexual development issues, hair loss, learning disabilities, deafness, muscle contractions, limb pain, and diabetes.