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Activin helps skin growth and healing mainly through stromal cells and affects keratinocytes based on its amount.

Hormonal treatments can help with acne, especially in women, by lowering androgen levels or blocking their effects.

New methods have greatly improved our understanding of stem cell behavior and roles in the body.

Mice without the Sept4/ARTS gene heal wounds better due to more stem cells that don't die easily.

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

Certain mice without specific receptors or mast cells don't lose hair from stress.

The circadian clock influences the behavior and regeneration of stem cells in the body.

Progress has been made in skin and nerve regeneration, but more research is needed to improve methods and ensure safety.

Stress can worsen skin conditions by affecting hormone levels and immune response.

Hair greying is caused by oxidative stress damaging hair follicles and melanocytes.

Different scaffold patterns improve wound healing and immune response in mouse skin, with aligned patterns being particularly effective.

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

Compartmentalized organization might be crucial for stem cells to effectively respond to growth or injury.

Apoptosis is crucial for healthy skin and treating skin diseases.

Nitric oxide gel helps heal skin burns faster by improving skin growth, hair regrowth, and blood vessel formation.

Blocking BACE1 and BACE2 enzymes causes hair color loss in mice.

High levels of testosterone and 5α-DHT can lead to cell death in cells important for hair growth.

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.

Different women's hair and skin glands respond to hormones in varied ways, which can cause unwanted hair growth even with normal hormone levels, and more research is needed to treat this effectively.

Research on epidermal stem cells has advanced significantly, showing promise for improved clinical therapies.

Activating β-catenin in different skin stem cells causes various types of hair growth and skin tumors.

Prolactin slows down hair growth in mice.

Ginseng and its compounds may help hair growth and prevent hair loss, but more human trials are needed to confirm this.

Parathyroid hormone-related protein helps control hair growth phases in mice.

The document explains hair growth and shedding, factors affecting it, and methods to evaluate hair loss, emphasizing the importance of skin biopsy for diagnosis.

Shift nurses show altered body temperature and stress hormone levels, suggesting their body clocks adjust to irregular schedules.

Premature graying of hair may suggest health issues and currently lacks effective treatments.

Goat reproductive activity and coat growth are affected by light and temperature, with temperature altering prolactin levels and hair growth, but not melatonin or estrus onset.

Androgen receptor activity blocks Wnt/β-catenin signaling, affecting hair growth and skin cell balance.

MicroRNAs play a crucial role in skin and hair health, affecting everything from growth to aging, and could potentially be used in treating skin diseases.