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Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.

Marsupial hair structure and keratin distribution are similar to placental mammals.

The document concludes that wound healing leads to skin repair or scar formation.

Aging disrupts skin repair and stress responses, but exercise-related IL-15 improves wound healing and skin health in older skin.

Human skin has multiple layers and functions, with key roles in protection, temperature control, and appearance.

Neuregulin3 affects cell development in the skin and mammary glands.

Miz1 is essential for proper hair structure and growth.

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

Horse skin stem cells combined with platelet-rich plasma improve skin healing.

The skin protects the body, regulates temperature, senses touch, and makes vitamin D.

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.

Maternal aspartame consumption during pregnancy leads to skin damage and higher apoptosis in newborn rat offspring.

Wound dressing absorbs fluid, regenerates hair follicles, and heals skin burns.

Frog skin cells need the protein desmoplakin for proper development and cell layer formation.

The skin is vital for protection, temperature control, fluid balance, immunity, and sensing, with damage affecting daily life and mental health.

The study found that tight junctions reach the top layer of the skin's stratum granulosum, not just the second top layer as previously thought.

The document concludes that recent research has improved understanding of skin diseases and the balance between cell growth and differentiation in the epidermis.

Fatp4 is crucial for healthy skin development and function.

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

Sebaceous glands can help harvest hair follicle stem cells to regenerate skin and hair.

The skin and thymus develop similarly to protect and support immunity.

Melanin granules can be expelled by exocytosis.

VEGFR-2 is active in hair follicles, sebaceous glands, sweat glands, and skin on the human scalp.

Epidermis and dermis cells together can regenerate hair follicles.

The skin is a complex barrier that protects the body, regulates temperature, and helps with immune responses.

Connexin 30 is usually absent in normal skin but can appear in certain skin conditions.

Cholesterol sulfate buildup due to a genetic mutation disrupts the skin barrier, leading to the scaling skin seen in X-linked ichthyosis.

The study suggests that the arrector pili muscle is important for hair health and its damage might contribute to hair loss.

Mice genetically modified to produce more CD109 in their skin had less inflammation and better healing with less scarring.

Skin structure complexity and variability are crucial for assessing skin toxicity in safety tests.