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Aging mice have slower hair regeneration due to changes in signal balance, but the environment, not stem cell loss, controls this, suggesting treatments could focus on environmental factors.

Prolactin affects when mice shed and grow hair.

Long-term testosterone therapy can cause hormone suppression, affect prostate and heart health, and alter physical characteristics, but does not increase prostate cancer risk and needs more research for full risk assessment.

Progress has been made in skin and nerve regeneration, but more research is needed to improve methods and ensure safety.

PRP and HF-MSCs treatment improves hair growth, thickness, and density in androgenetic alopecia.

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

PRP injections may be a safe, effective alternative for hair loss treatment compared to minoxidil and finasteride.

Hair follicle stem cells are a promising source for tissue repair and treating skin or hair diseases.

Technique creates 3D cell spheroids for hair-follicle regeneration.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

Fat from the body can help improve hair growth and scars when used in skin treatments.

Certain signals and genes play a key role in hair growth and regeneration, and understanding these could lead to new treatments for skin regeneration.

Products should be called 'sperm-safe' only after thorough, well-designed tests.

Low doses of mixed chemicals cause permanent reproductive malformations in male rats.

ECM molecules are crucial for hair growth and development.

EGF and FGF help hair growth by affecting cell differentiation and fiber growth.

Advancements in creating skin grafts with biomaterials and stem cells are promising, but more research is needed for clinical application.

Micrografts improve hair density and thickness without side effects.

Beard and scalp hair cells have different gene expressions, which may affect beard growth characteristics.

Hair follicle regeneration in skin grafts may be possible using stem cells and tissue engineering.

PDGF signaling is crucial for maintaining and renewing hair follicle stem cells, which could help treat hair loss.

Hair follicles are valuable for regenerative medicine and wound healing.

BAF200 is essential for proper heart and coronary artery formation.

Small changes in hormones can significantly impact health, showing the importance of sensitive testing for chemicals that disrupt hormones.

Skin cells can help create early hair-like structures in lab cultures.

Activin activation in skin cells speeds up wound healing without affecting scar quality.

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

Women with PCOS who had antiandrogenic treatment before pregnancy had fewer complications than those without treatment.

NcoA4 may have roles beyond helping control gene activity, possibly affecting cell behavior and stability.

CD10 and CD34 levels change during hair development and different hair growth stages, which could be important for hair regeneration treatments.