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Human hair follicles can regenerate and recover after severe injury by going through a brief abnormal resting phase before growing again.

Putting α-methylspermidine on mouse skin can start hair growth.

Keratinocytes and adipose-derived stem cells can effectively heal difficult skin wounds.

Maintaining DNA integrity in stem cells is crucial to prevent aging and cancer.

Bioengineering can potentially treat hair loss by regenerating hair follicles and cloning hair, but the process is complex and needs more research.

TGFβ signaling prevents sebaceous gland cells from producing fats.

Keratosis pilaris is often linked to genetic mutations and causes skin and hair abnormalities, regardless of those mutations.

N-acetylcysteine may prevent hair loss caused by chemotherapy.

Both cell and non-cell parts are important for rat whisker follicle regrowth.

Activating c-Myc in skin causes rapid cell growth and changes, but these effects are reversible.

There are two types of stem cells in rodent hair follicles, each with different keratin proteins.

Innate immunity genes in hair follicle stem cells might have new roles beyond traditional immune functions.

Merkel cells and Langerhans cells in hair follicles are closely connected and may interact.

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

Mice lacking a key DNA methylation enzyme in skin cells have a lower chance of activating stem cells necessary for hair growth, leading to progressive hair loss.

K16 can partially replace K14 but causes hair loss and skin issues.

Macrophage-stimulating protein helps hair grow and can start hair growth phase in mice and human hair samples.

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

Cilostazol may help hair grow and could be a new treatment for hair loss.

Scientists can control how skin stem cells divide by using different treatments.

Dermal Wnt/β-catenin signaling is important for the proper size and development of hair follicles.

The document concludes that different types of hair loss have specific treatments, and early diagnosis is crucial for preventing permanent hair loss.

Memory T cells in the skin balance staying put and moving into the blood, clustering around hair follicles, and increasing in number after infection.

TPA is about 50 times more effective at promoting tumors than MZ.

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

Polarized dermoscopy is slightly better than nonpolarized for diagnosing hair disorders, with each method having its own strengths.

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

Both methods improve hair density and thickness; double-spin may be more effective.

Certain skin cells near the base of hair muscles may help renew and stabilize skin, possibly affecting skin disorder understanding.

Epigenetic changes are crucial for hair follicle stem cells to function properly.