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Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.

The study showed that hair follicle stem cells can maintain and organize themselves in a lab setting, keeping their ability to renew and form hair and skin.

Applying a specific inhibitor lightens skin and hair color.

Liposomes can safely and effectively deliver substances to mouse hair follicles, potentially useful for human hair treatments.

Hair papilla cells can create and regenerate hair bulbs under the right conditions.

HA-MNs with MXD effectively treat hair loss better than topical MXD with fewer side effects.

UVB radiation harms hair growth and health, causing cell death and other changes in human hair follicles.

LY191704 is a compound that effectively blocks a specific enzyme involved in hormone conversion and could help treat enlarged prostate and hair loss.

Wound dressing absorbs fluid, regenerates hair follicles, and heals skin burns.

Testosterone helps beard and axillary hair cells grow by releasing growth factors from dermal papilla cells.

Organotypic culture systems can grow skin tissues that mimic real skin functions and are useful for skin disease and hair growth research, but they don't fully replicate skin complexity.

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

Safflower (Carthamus tinctorius) extract helps hair grow and could be used in hair products.

Mice skin has components that could help with hair growth and might be used for diabetes treatment.

Minoxidil stimulates hair growth by increasing hair thickness and prolonging growth phase.

Vitamin C derivative helps hair grow longer by making cells produce a growth factor through a specific cellular pathway.

Applying calreticulin can speed up wound healing in diabetics.

A long-acting Vitamin C derivative helps hair grow by stimulating cells and increasing growth factors.

Vitamin D3 can help improve hair growth by enhancing the function of specific skin cells and could be useful in hair regeneration treatments.

Two specific hair keratin genes are active during hair growth and decline as hair transitions to rest.

Certain signals are important for reducing specific chemical markers on hair follicle stem cells during rest periods, which is necessary for healthy hair growth.

The article concludes that developing in vitro models for human hair structures is important for research and reducing animal testing, but there are challenges like obtaining suitable samples and the models' limitations.

Gata6 is important for protecting hair growth cells from DNA damage and keeping normal hair growth.

Somatostatin may help protect hair follicles from immune attacks.

Choosing hair follicles at the same growth stage leads to more consistent hair growth experiments.

Testosterone affects hair follicles differently across body sites, with beard hair follicles showing more activity of a specific enzyme and presence of androgen receptors compared to scalp hair.

Insulin or IGF-I is needed for hair growth in newborn mice, while minoxidil helps adult mouse hair grow, suggesting a way to study human hair loss.

Ecklonia cava, a type of seaweed, may help hair grow.

The Persian cat has a skin infection caused by a fungus, treatable with antifungal medication.

Scientists made skin stem cells from other human cells with over 97% efficiency, which could help treat skin conditions.