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Environmental factors at different levels control hair stem cell activity, which could lead to new hair growth and alopecia treatments.

Gonadal hormones significantly affect the severity of alopecia areata in mice.

Some plant-based chemicals may help with hair growth, but more research is needed to confirm their effectiveness.

Low-level laser therapy is safe and can increase hair growth for male and female pattern hair loss.

The hair cuticle is made of tough proteins that protect the hair, but more research is needed to fully understand its structure.

Human scalp hair follicles have PGE2 and its receptors, which might affect hair growth.

Human hair follicles can regenerate after removal, but with low success rate.

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

HGF/SF increases skin melanocytes but doesn't change melanin type or amount.

Animal models, especially mice, are essential for advancing hair loss research and treatment.

Eating well and avoiding synthetic hair products are key for healthy hair.

Large-scale fibronectin nanofibers help heal wounds and repair tissue in a skin model of a mouse.

New treatments for hair loss should target eight main causes and use specific plant compounds and peptides for better results.

The CuCS/Cur wound dressing helps regenerate nerves and heal deep skin burns by rebuilding hair follicles.

EGF makes hair follicles grow longer but stops hair production.

A protein called sFRP4 from skin cells stops the development of pigment-producing cells in hair.

Scientists created three types of structures to help regrow hair follicles, and all showed promising results for hair regeneration.

Hair follicles are complex, dynamic mini-organs that help us understand cell growth, death, migration, and differentiation, as well as tissue regeneration and tumor biology.

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

Goat hair growth and follicle activity change with the seasons and differ between males and females.

The article concludes that understanding the molecular processes in hair follicle development can improve the quality of fibers like Angora and cashmere.

Environmental and cosmetic factors, including heat, chemicals, and sun exposure, can cause hair loss and damage.

Melanocytes are important for skin and hair color and protect the skin from UV damage.

The PLP2 gene affects cashmere fiber quality in goats and is linked to hair growth and loss.

mTORC1 activity is important for hair growth and color, and targeting it could help treat hair loss and greying.

Human skin produces sex hormones like estrogen and testosterone, influenced by ARO and StAR, which may affect skin elasticity and hair growth.

Mice without certain skin proteins had abnormal skin and hair development.

Stem cells can help other stem cells by producing supportive factors.

Some hair protein genes evolved early and were adapted for use in hair follicles.

The conclusion is that future hair loss treatments should target the root causes of hair thinning, not just promote hair growth.