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Adult skin quickly reacts to short-term environmental and internal stress, leading to various skin issues and the need for protective measures.

Prostasin has two roles in skin: one for normal skin development without needing activation, and another for proper hair growth that requires activation.

Annurca apple supplement safely increases hair growth and keratin in humans.

Three types of stem cells help maintain and repair skin, responding to health and environmental changes.

Non-coding RNAs are crucial for skin development and health.

People with alopecia areata have higher insulin resistance.

Telocytes in the scalp may help with skin regeneration and maintenance.

Nerve growth factor helps improve healing time and scar quality in burn wounds.

Melanocytes are diverse cells important for pigmentation and skin health, influenced by genetics and environment.

The free androgen index varies among women with different types of PCOS.

Darkened knuckles can be an early sign of insulin resistance.

Cell polarity signaling controls tissue mechanics and cell fate, with complex interactions and varying pathways across species.

Many young Egyptian women with PCOS also have fatty liver disease, especially if they are overweight and insulin resistant.

DNA methylation is essential for skin and hair follicle development, and could be a target for treating skin diseases.

T cells and bacteria in the gut and skin help maintain health and protect against disease.

LGR5 is a marker found in hair follicle stem cells in various species and is important for hair growth and skin repair.

Skin health and repair depend on the signals between skin stem cells and their surrounding cells.

The document concluded that stem cells are crucial for skin repair, regeneration, and may help in developing advanced skin substitutes.

Good nutrition and vitamins are important for healthy skin and can prevent diseases.

Scientists used a special imaging technique to observe that hair follicle regeneration involves cell division and structural changes, mostly in the lower part of the follicle, and that the dermal papilla at the base is crucial for regrowth.

Mice without the vitamin D receptor have bone issues and other health problems, suggesting vitamin D is important for preventing various diseases in humans.

The vitamin D receptor is crucial for bone health and affects various body systems, with mutations potentially leading to disease.

The document concludes that skin stem cells are important for hair growth and wound healing, and could be used in regenerative medicine.

Removing the ATR gene in adult mice causes rapid aging and stem cell loss.

The vitamin D receptor is involved in multiple body functions beyond calcium regulation, including immune response and rapid reactions not related to gene activity.

Human skin can make serotonin and melatonin, which help protect and maintain it.

Stem cell niches are crucial for regulating stem cell behavior and tissue health, and their decline can impact aging and cancer.

Stem cells are crucial for skin repair and new treatments for chronic wounds.

Melatonin is important for skin health and protection, and can be made by the skin or applied to it.

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