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Keratin-associated proteins have ancient origins and were used for different purposes before being adapted for hair in mammals.

The gene Tfap2b is essential for creating a type of stem cell in zebrafish that can become different pigment cells.

Skin health and repair depend on the signals between skin stem cells and their surrounding cells.

The document explains various skin conditions and their treatments.

Skin stem cells are crucial for maintaining and repairing skin, with potential for treating skin disorders and improving wound healing.

Wound healing is complex and requires more research to enhance treatment methods.

Dermatological conditions are complex, and treatments have mixed results.

Epithelial stem cells are crucial for tissue renewal and repair, and understanding them could improve treatments for damage and cancer.

Natural products in cosmetics are beneficial for skin and hair care with low toxicity.

Experts recommend using evidence-based methods to diagnose and treat hirsutism, focusing on symptoms and underlying causes.

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

Microspheres about 1.5 micrometers in size can best penetrate hair follicles, potentially reaching important stem cells.

Polymeric nanoparticles show promise for treating skin diseases.

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

Artificial skin development has challenges, but new materials and understanding cell behavior could improve tissue repair. Also, certain growth factors and hydrogel technology show promise for advanced skin replacement therapies.

Melatonin may benefit skin health and could be a promising treatment in dermatology.

Trichoscopy is a useful tool for diagnosing different hair and scalp diseases by their unique visual features.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

Androgens can cause hair growth in some areas and hair loss on the scalp.

Male and female skin differ due to hormones, affecting conditions like hair loss, acne, and skin cancer, and suggesting a need for gender-specific treatments.

Nanoparticles improve drug delivery through the skin but more research is needed on their long-term effects and skin penetration challenges.

Bioprinting could improve wound healing but needs more development to match real skin.

Stem cell self-renewal is complex and needs more research for full understanding.

Estrogen loss during menopause worsens skin health, but hormone replacement therapy may improve it, though more research is needed.

Stem cells in the hair follicle are regulated by their surrounding environment, which is important for hair growth.

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

The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.

Stem cell plasticity is crucial for wound healing but can also contribute to cancer development.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Asia has made significant progress in tissue engineering and regenerative medicine, but wider clinical use requires more development.