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Rats can't grow new hair follicles after skin wounds, unlike mice, due to differences in gene expression and response to WNT signaling.

Adult stem cells with Tp63 can form hair and skin cells when placed in new skin, showing they have hidden abilities for skin repair.

Dermal papillae cells, important for hair growth, come from multiple cell lines and can be formed by skin cells, regardless of their origin or hair cycle phase. These cells rarely divide, but their ability to shape tissue may contribute to their efficiency in inducing hair growth.

3,4,5-tri-O-caffeoylquinic acid promotes hair growth by activating the β-catenin pathway.

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

Too much β-catenin activity can mess up the development of mammary glands and make them more like hair follicles.

Understanding skin structure and development helps diagnose and treat skin disorders.

Smad1 and Smad5 are essential for hair follicle development and stem cell sleepiness.

A gene called APCDD1, which controls hair growth, is found to be faulty in a type of hair loss called hereditary hypotrichosis simplex.

Hair growth and development are controlled by specific signaling pathways.

Laminin-511 may help promote hair growth, while laminin-332 does not affect hair loss.

Different signals work together to change gene activity and guide hair follicle stem cells to become specific cell types.

Using human fat tissue derived stem cells in micrografts can safely and effectively increase hair density in people with hair loss.

Dogs could be good models for studying human hair growth and hair loss.

Fish oil improves skin health in people with diabetes and high cholesterol.

Adult stem cells from rat whisker follicles can regenerate hair follicles and sebaceous glands.

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

Wnt signaling is crucial for skin development and hair growth.

Hdac1 and Hdac2 help maintain and protect the cells that control hair growth.

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

P-cadherin is important for hair growth and health, and its problems can cause hair and skin disorders.

Sweat gland development involves two unique skin cell programs and a temporary skin environment.

The research found genes that may protect certain scalp cells from hair loss.

The skin systems of jawed vertebrates evolved diverse appendages like hair and scales from a common structure over 420 million years ago.

The document concludes that while lab results for hair growth promotion are promising, human trials are needed and better testing methods should be developed.

Exosomes from dermal papilla cells can help grow hair and might treat hair loss.

Mouse amnion can turn into skin and hair follicles with help from certain cells and factors.

The research created a detailed map of skin cells, showing that certain cells in basal cell carcinoma may come from hair follicles and could help the cancer grow.

Cyclosporine A promotes hair growth and prolongs the active growth phase in human hair follicles, but may work differently than in rodents.

The study provides insights into hair growth mechanisms in yaks.