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Human skin can make serotonin and melatonin, which help protect and maintain it.

Stem cells are crucial for skin repair and new treatments for chronic wounds.

AGA causes hair loss by shrinking hair follicles due to DHT binding, and can be treated with finasteride and minoxidil.

Epigenetic changes control how adult stem cells work and can lead to diseases like cancer if they go wrong.

Fat-derived stem cells show promise for skin repair and reducing aging signs but need more research for consistent results.

Terbinafine quickly builds up in skin and hair, staying effective for over 3 weeks.

NF-κB is crucial for zebrafish heart repair, affecting heart cell growth and repair processes.

Menopause reduces skin collagen and elasticity, and while estrogen therapy can help, its risks require careful consideration.

New treatments for male hypogonadism are effective and should be personalized.

LGR5 helps maintain corneal cell characteristics and prevents unwanted changes by controlling specific cell signaling pathways.

Dutasteride and finasteride do not significantly affect bone density, blood fats, or blood production, but slightly lower PSA levels and minimally impact sexual function in healthy young men.

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.

Finasteride effectively treats male pattern baldness, improving hair growth and density.

The document suggests that targeting the hormone DHT could be a more effective treatment for prostate cancer than targeting testosterone.

MRL/MpJ mice's skin wounds heal with scars, unlike their ear wounds which can regenerate.

Exosomes can improve skin health and offer new treatments for skin repair and rejuvenation.

Thyroid hormone affects skin health, with too little causing rough, pale skin and too much leading to smooth, thin skin, and may also impact wound healing and skin conditions.

Live imaging has advanced our understanding of stem cell behavior and raised new research questions.

Menopause affects hair and skin; more research needed for treatment.

Lizards can regrow their tail scales with the same structure, distribution, and gender-specific features as the original ones, and this unique ability is not seen in adult mammals.

R-spondins and their receptors help increase bone growth and may be used to treat bone loss diseases.

Hair regrowth slows with age and can be affected by treatments that change enzyme activity in the skin.

Nanoparticles effectively deliver water-insoluble drugs to hair follicles, stimulating hair growth without irritating the skin.

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

Hormonal imbalances, often indicating conditions like PCOS, are common in women with hard-to-treat acne, and a treatment approach addressing these imbalances may be needed.

Light therapy using helium-neon lasers can help restore skin color in vitiligo by promoting skin cell growth and movement.

The guide explains how to study human skin fat cells and their tissue, aiming to improve research and medical treatments.

Hair transplantation surgery has improved, giving more natural results, and success depends on a skilled team and proper technique.

Ruby laser hair removal significantly reduces hair density.

Losing 5-10% body weight can improve PCOS symptoms, letrozole is better than clomiphene for fertility, and managing weight and blood sugar is important to reduce pregnancy complications.