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The immune system plays a key role in tissue repair, affecting both healing quality and regenerative ability.

Future hair loss treatments should aim to extend hair growth, reactivate resting follicles, reverse shrinkage, and possibly create new follicles, with gene therapy showing promise.

Chitin and chitosan are useful in cosmetics for oral care, haircare, and skincare, including UV protection and strength improvement.

Cells from balding scalps have more androgen receptors than cells from non-balding scalps.

Chemotherapy causes hair loss by damaging hair follicles and stem cells, with more research needed for prevention and treatment.

Tiny pollution particles called PM2.5 can harm skin cells by causing stress, damage to cell parts, and cell death.

Hair follicles help absorb and store topical compounds, aiding targeted drug delivery.

Scientists have found a way to create hair follicles from skin cells of newborn mice, which can grow and cycle naturally when injected into adult mouse skin.

Alopecia areata is likely an autoimmune disease with unclear triggers, involving various immune cells and molecules, and currently has no cure.

Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.

Androgens can cause hair growth in some areas and hair loss on the scalp.

Tight junctions are key for skin protection and controlling what gets absorbed or passes through the skin.

Male pattern baldness involves genetics, hormones, and needs better treatments.

Minoxidil treats hair loss, promotes growth, has side effects, and has recent patents.

Some viruses can cause cancer by changing cell processes and avoiding the immune system; vaccines and targeted treatments help reduce these cancers.

Antibiotics can reduce acne but may lead to resistant bacteria, and understanding the skin's bacteria is important for treatment.

Fat-derived stem cells show promise for skin repair and reducing aging signs but need more research for consistent results.

Inflammation may be linked to hair loss, and targeting specific enzymes could help treat it.

Fat cells in the skin help start healing and form important repair cells after injury.

Targeting androgen receptors could be a promising way to treat skin disorders with fewer side effects.

The document concludes that while significant progress has been made in understanding skin biology and stem cells, more research is needed to fully understand their interactions with their environment.

Skin's Regulatory T cells are crucial for maintaining skin health and could be targeted to treat immune-related skin diseases and cancer.

Lowering testosterone speeds up wound healing in male mice.

The document concludes that understanding the sebaceous gland's development and function is key to addressing related skin diseases and aging effects.

Nerves and chemicals in the body can affect hair growth and loss.

Nutraceuticals may improve skin health and protect against aging, but more research is needed on their optimal use and possible health risks.

Lichen Planopilaris and Frontal Fibrosing Alopecia may help us understand hair follicle stem cell disorders and suggest new treatments.

Correcting nutrient deficiencies may help with hair loss, but the benefits of supplements without a deficiency are uncertain and could be harmful.

Hidradenitis suppurativa is caused by genetic factors, inflammation, bacteria, hormones, and lifestyle factors like obesity and smoking.

Environmental factors, hormones, nutrition, and stress all significantly affect skin health and aging.