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Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

Pregnancy can cause skin darkening, varicose veins, more sweating, hair growth, hair loss after birth, nail changes, and gum inflammation.

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

Janus kinase inhibitors are promising treatments for autoimmune skin diseases like eczema and psoriasis.

Understanding how cells die in the skin is important for treating skin diseases and preventing hair loss.

Cytokeratin 19 and cytokeratin 15 are key markers for monitoring the quality and self-renewing potential of engineered skin.

MicroRNA-214 is important for skin and hair growth because it affects the Wnt pathway.

The document concludes that adult mammalian skin contains multiple stem cell populations with specific markers, important for understanding skin regeneration and related conditions.

Pregnancy can cause skin pigmentation, stretch marks, and changes in hair, nails, and sweat glands, with most resolving after birth.

Sensitive skin is often caused by nerve fibers and environmental factors, and can be managed with mild skincare and professional advice.

Fatty acid transport protein 4 is essential for skin and hair development.

Certain types of T cells are essential for healthy skin and play a role in skin diseases, but more research is needed to improve treatments.

Skin has specialized touch receptors that can tell different sensations apart.

Fat cells are important for healthy skin, hair growth, and healing, and changes in these cells can affect skin conditions and aging.

Menopause reduces skin collagen and elasticity, and while estrogen therapy can help, its risks require careful consideration.

Mesenchymal stem cells show potential for skin healing and anti-aging, but more research is needed for safe use, especially regarding stem cells from induced pluripotent sources.

Wnt signaling is crucial for skin and hair development and its disruption can cause skin tumors.

Fat-derived stem cells, platelet-rich plasma, and biomaterials show promise for healing chronic skin wounds and improving soft tissue with few side effects.

Oestrogens help maintain healthy skin, heal wounds, and may protect against skin aging and cancer.

Skin fat has important roles in hair growth, skin repair, immune defense, and aging, and could be targeted for skin and hair 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.

Vitamin D receptor is crucial for starting hair growth after birth.

Platelet-rich plasma, taken from a person's own blood, can help rejuvenate skin, stimulate hair growth, and treat hair loss, but more research is needed to confirm its safety and effectiveness.

Keratins are important for skin cell health and their problems can cause diseases.

Skin bacteria, specifically Staphylococcus aureus, help in wound healing and hair growth by using IL-1β signaling. Using antibiotics on skin wounds can slow down this natural healing process.

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

A 3-month stay in space causes skin thinning, disrupts hair growth, and changes muscle-related genes in mice.

Lymphatic vessels are essential for hair follicle growth and skin regeneration.

Menopause significantly reduces skin collagen, leading to thinner, less elastic skin, and hormone replacement may help but requires careful consideration.

Advancements in creating skin grafts with biomaterials and stem cells are promising, but more research is needed for clinical application.