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

The document concludes that the skin's immune system is complex, involving interactions with hair follicles, nerves, and microbes, and can protect or cause disease, offering targets for new treatments.

The document concludes that both internal stem cell factors and external influences like the environment and hormones affect hair loss and aging, with potential treatments focusing on these areas.

Increasing PBX1 reduces aging and cell death in hair follicle stem cells by boosting SIRT1 and lowering PARP1 activity.

Genes related to keratin, skin cell differentiation, and immune functions are key in hedgehog skin and spine development.

Emerging therapies like stem cell and laser treatments show promise for hair regeneration.

New method measures skin cell turnover quickly and effectively, showing turnover slows with age and responds more to treatments in older skin.

HA-stimulated stem cell vesicles improved hair growth in male mice with androgenetic alopecia.

Skin bacteria help hair regrow by boosting cell metabolism.

CD3+ T-cell presence is a reliable marker to tell apart alopecia areata from pattern hair loss.

A new method efficiently creates cell spheres that help regenerate hair.

Collagen VII helps skin heal and stay strong, sirolimus may lower skin cancer risk in kidney transplant patients, high-molecular-mass hyaluronan helps naked mole rats resist cancer, dermal γδ T cells aid in hair growth in rodents, and overexpression of IL-33 in mouse skin causes itchiness, offering a model for studying allergic inflammation treatments.

Epidermal Wnt/β-catenin signaling controls fat cell formation and hair growth.

Sex and stress steroids quickly change brain cell structures in the hippocampus.

Docosahexaenoic acid (DHA) may help hair growth by promoting dermal papilla cell proliferation.

Exosomes from human hair follicle cells can improve aging hair follicle cell function and help regenerate hair follicles.

Red light and LED treatments help hair grow by activating a specific cell signaling pathway.

Mice with extra human KLK14 had hair and skin problems, including weaker cell bonds and inflammation, linked to Netherton syndrome.

Deleting the CRIF1 gene in mice disrupts skin and hair formation, certain proteins affect hair growth, a new compound may improve skin and hair health, blood cell-derived stem cells can create skin-like structures, and hair follicle stem cells come from embryonic cells needing specific signals for development.

New findings suggest targeting IL-23 could treat psoriasis, skin cells can adapt to new roles, direct conversion of skin cells to blood cells may aid cell therapy, removing certain tumor cells could boost cancer immunotherapy, and melanoma may have many tumorigenic cells, not just cancer stem cells.

Glycerol may improve wound healing and prevent keloids, a device can measure itch intensity, male pattern baldness is highly heritable, and fumaric acid esters may work for psoriasis by causing cell death in T cells.

Dermal papilla cells can help regrow hair and are promising for hair loss treatments.

Green tea component EGCG may help prevent hair loss by changing microRNA levels in certain scalp cells.

Transplanting growing hair follicles into scars can help regenerate and improve scar tissue.

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

Activating TLR9 helps heal wounds and regrow hair by using specific immune cells.

Exosome therapy shows promise for treating skin conditions and improving wound healing.

The new hair-dyeing shampoo is safe, colors hair evenly, and strengthens it.

Hair follicle stem cells could lead to new hair loss treatments.

The document provides a quiz for physicians to earn continuing medical education credits in facial plastic surgery.