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Skin changes throughout life, from development before birth to aging effects like wrinkles, influenced by both genetics and environment.

Skin and hair can regenerate after injury due to changes in gene activity, with potential links to how cancer spreads. Future research should focus on how new hair follicles form and the processes that trigger their creation.

Chitosan-coated nanoparticles improve skin delivery of hair loss treatments with fewer side effects.

The we/we wal/wal mice have defects in hair growth and skin layer formation, causing hair loss, useful for understanding alopecia.

Ethosomal carriers effectively deliver hair loss drug into skin.

A specific protein in chicken embryos links early skin layers to feather development.

Basal cell carcinoma mostly starts from cells in the upper skin layers, not hair follicle stem cells.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

Zinc oxide nanoparticles in sunscreen do not penetrate deep into the skin.

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

Engineered skin substitutes can grow hair but have limitations like missing sebaceous glands and hair not breaking through the skin naturally.

3D bioprinting could improve skin repair and treat conditions like vitiligo and alopecia by precisely placing cells.

Skin fat cells help with skin balance, hair growth, and healing wounds.

Researchers created a quick, cost-effective way to make skin-like tissue from hair follicles and fibroblasts.

The study found that the enzyme linked to acne is present in the same areas of both acne-affected and normal skin.

The new method using gene-modified stem cells and a 3D printed scaffold improved skin repair in mice.

Skin cell behavior is influenced by the tightness of nearby cells, affecting their growth and development.

Multiphoton microscopy is a promising tool for detailed skin imaging and could improve patient care if its challenges are addressed.

Eph/ephrin signaling is important for skin cell behavior and could be targeted to treat skin diseases.

Skin's epithelial stem cells are crucial for repair and maintenance, and understanding them could improve treatments for skin problems.

A specific group of slow-growing stem cells marked by Thy1 is crucial for skin maintenance and healing in mice.

The document concludes that the skin is a complex organ providing protection, sensation, and healing, with challenges in treating conditions like itchiness.

Liposomes improve drug delivery and reduce skin irritation in dermatology.

Polymeric nanoparticles show promise for treating skin diseases.

Ethosomal carriers improve drug delivery through the skin better than traditional methods.

Lipid nanoparticles can help deliver drugs through hair follicles but struggle to penetrate deeper skin layers.

Ethosomes improve drug delivery through the skin but may have side effects like irritation.

Skin development in mammals is controlled by key proteins and signals from underlying cells, involving stem cells for maintenance and repair.

Ultrasound is a useful, non-invasive tool in dermatology for diagnosing skin conditions and guiding treatments, but it has some limitations.

α-Tocopheryl acetate is well absorbed through healthy skin.