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Activin helps skin growth and healing mainly through stromal cells and affects keratinocytes based on its amount.

Environmental factors, hormones, nutrition, and stress all significantly affect skin health and aging.

Researchers created a fully functional, bioengineered skin system with hair from stem cells that successfully integrated when transplanted into mice.

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

Androgenetic alopecia involves genetics, hormones, and can be treated with medications or surgery.

Male hormones are important for hair and oil gland development and can cause conditions like excessive hair growth and acne.

The conclusion is that hair growth can be improved by activating hair cycles, changing the surrounding environment, healing wounds to create new hair follicles, and using stem cell technology.

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.

Hair growth can be induced by certain cells found at the base of hair follicles, and these cells may also influence hair development and regeneration.

Estrogens and SERMs can help with skin aging, but their safety and effectiveness need more research.

The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.

The document concludes that understanding hair and feather regeneration can help develop new regenerative medicine strategies.

Hair loss in women may have causes other than hormones.

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.

Facial plastic surgery has evolved to focus on less invasive techniques and innovative technologies for cosmetic and reconstructive procedures.

Hair problems are common and distressing for women, but increasing knowledge of treatments offers hope.

Endo-HSE helps grow hair-like structures from human skin cells in the lab.

Bone-marrow and epidermal stem cells help heal wounds differently, with bone-marrow cells aiding in blood vessel formation and epidermal cells in hair growth.

Genetically-altered adult stem cells can help in wound healing and are becoming crucial in regenerative medicine and drug design.

Hair loss in elderly women is often caused by various factors, including hormonal changes after menopause.

The document concludes that menopause should be seen as a natural part of aging and managed with personalized care and informed choices.

Further research is needed to improve hair regeneration using stem cells and nanomaterials.

Researchers created early-stage hair-like structures from skin cells, showing how these cells can self-organize, but more is needed for complete hair growth.

17α-estradiol is a safe estrogen that might protect the brain and doesn't cause feminization, needing more research for treating brain diseases.

Hair follicle stem cells help maintain skin health and could improve skin replacement therapies.

Skin aging is caused by stem cell damage and can potentially be delayed with treatments like antioxidants and stem cell therapy.

Skin stem cells are maintained by signals from nearby cells and vary in their ability to renew and mature.

Thyroid hormones affect skin texture, hair and nail growth, and can cause skin diseases related to thyroid problems.

Women have a higher risk of blood clots from hormonal factors and need careful treatment, especially during pregnancy.

Stem cells can rejuvenate skin, restore hair, and aid in wound healing.