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

Nanoparticles improve drug delivery through the skin but more research is needed on their long-term effects and skin penetration challenges.

The dermal papilla is crucial for hair growth and health, and understanding it could lead to new hair loss treatments.

Cathepsin L is essential for normal hair growth and development.

The Sonic hedgehog pathway is crucial for new hair growth during mouse skin healing.

The niche environment controls stem cell behavior and plasticity, which is important for tissue health and repair.

Sonic hedgehog signaling is crucial for hair growth and maintaining hair follicle identity.

PRP treatment improves hair growth, and the device used can affect results, with some being more effective.

Modulating BMP activity changes the number, size, shape, and type of ectodermal organs.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

Damage to skin releases dsRNA, which activates TLR3 and helps in skin and hair follicle regeneration.

The skin's internal clock affects healing, cancer risk, aging, immunity, and hair growth, and disruptions can harm skin health.

Low doses of some substances can be beneficial, while high doses can be harmful or toxic.

Normal skin cell renewal doesn't need RAR signaling, but vitamin A-related skin thickening does.

Stress can cause hair loss by negatively affecting hair follicles and this effect might be reversed with specific treatments.

Fat cells in the skin help start healing and form important repair cells after injury.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Stress increases nerve fibers and immune cell activity in mouse skin, possibly worsening skin conditions.

Wnt and Notch signaling help wound healing by promoting cell growth and regulating cell differentiation.

Applying a special compound can promote hair growth without harmful side effects.

KGF and activin are crucial for skin healing and repair.

Overexpressing Dsg3 in mice skin causes excessive cell growth and abnormal skin development.

Skin-derived precursors in hair follicles come from different origins but function similarly.

A mother's PPARγ is crucial for preventing harmful milk that can cause inflammation and growth problems in babies.

Nerves and chemicals in the body can affect hair growth and loss.

Dutasteride may help stabilize Frontal Fibrosing Alopecia, but more research is needed.

There are many treatments for permanent hair loss disorders, but their effectiveness varies and there's no clear best option.

A WNT10A gene mutation leads to ectodermal dysplasia by disrupting cell growth and differentiation.

Mutations in the PADI3 gene are linked to a higher risk of scarring hair loss in women of African descent.

Treatments for permanent hair loss from scarring aim to stop further loss, not regrow hair, and vary by condition, with partial success common.