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Hair keratins evolved from ancient proteins, diversifying through gene changes, crucial for forming claws and later hair in mammals.

Human nails and hair follicles have similar gene activity, especially in the cells that contribute to their growth and development.

Special proteins are important for skin balance, healing, and aging, and affect skin stem cells.

Claudin-1 is crucial for maintaining skin barrier and preventing inflammation.

Adult skin cell-based early-stage skin substitutes improve wound healing and hair growth in mice.

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

Adult vibrissa follicle stem cells can regenerate hair follicles, glands, and skin.

Genetically-altered adult stem cells can help in wound healing and are becoming crucial in regenerative medicine and drug design.

Hair can regrow in adult mice's skin after injury, and this regrowth doesn't come from existing hair cells but from skin cells in the wound, with Wnt7a protein helping this process. This could help treat baldness and scarring.

Hair can regrow in adult mice's skin after injury, and this process can be boosted by increasing Wnt7a, a protein. This could potentially help treat baldness and change our understanding of hair growth.

Hair can regrow in adult mice's skin after injury, and this regrowth doesn't come from existing hair cells but from skin cells in the wound, with Wnt7a protein helping this process. This could help treat baldness and scarring.

Hypothyroidism harms rat skin, but topical triiodothyronine may help improve it.

Hair follicles help skin immune recovery after UVB exposure.

A specific enzyme is essential for proper hair follicle stem cell development and healthy skin.

After skin injury, adult mice can grow new hair follicles, and this process can be increased or stopped by manipulating Wnt signals.

Retinoic acid affects skin and hair health by working with specific receptors, and its absence can lead to hair loss and skin changes.

Wnt ligand secretion by hair follicle cells is essential for hair growth and repair.

Reflectance confocal microscopy helped tell periorificial dermatitis apart from similar skin conditions.

Current therapies cannot fully regenerate adult skin without scars; more research is needed for scar-free healing.

EZH2 levels decrease as fetuses develop and are higher in adult skin, which may affect skin growth and repair.

Lizards can regrow their tail scales with the same structure, distribution, and gender-specific features as the original ones, and this unique ability is not seen in adult mammals.

Small molecule DMF improves psoriasis and multiple sclerosis, adult skin cells can be made to grow new hair, certain skin cells initiate hair growth, IL-17C controls gut health and can cause skin inflammation, and skin cells produce IL-17 that can lead to psoriasis.

The document concludes that identifying the specific cells where skin cancers begin is important for creating better prevention, detection, and treatment methods.

Most vertebrates can regenerate skin, nails, and corneas, but only some can regenerate teeth and lenses.

Scientists successfully created fully functional hair follicles using bioengineering methods and stem cells.

Researchers successfully used nude mice to study human hair growth, which could help with future hair research.

Epidermal stem cells help renew skin and regenerate hair follicles.

NGAL indicates abnormal skin cell differentiation.

Forehead creases are formed by a tight connection between the skin and muscle through dense fibers, with changes in skin thickness and fewer skin appendages near the creases.

Using enzymes to break down scalp hair follicles gets more stem cells for skin and hair growth than the old method.