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Androgens have complex effects on hair growth, promoting it in some areas but causing hair loss in others, and our understanding of this is still evolving.

Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.

Animals that change color with the seasons mainly do so in response to daylight changes, but climate change is causing camouflage problems that may require evolutionary changes.

Wnt and Notch signaling help wound healing by promoting cell growth and regulating cell differentiation.

Melatonin helps regulate hair growth and protects the hair follicle from stress.

Microneedling is promising for treating various skin issues but needs more research to confirm its effectiveness and safety.

Stress increases a factor in mice that leads to hair loss, and blocking this factor may prevent it.

The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.

UV radiation can help sterilize wounds and promote healing but requires careful use to avoid damaging cells.

The document concludes that assessing hair follicle damage due to cyclophosphamide in mice involves analyzing structural changes and suggests a scoring system for standardized evaluation.

Skin surface lipids are important for skin health and altering them could help prevent aging and treat skin conditions.

Chemotherapy often causes temporary hair loss, which is distressing and needs better treatment and support.

Hair follicles are hormone-sensitive and involved in growth and other functions, with potential for new treatments, but more research is needed.

The sebaceous gland has more roles than just producing sebum and contributing to acne, and new research could lead to better skin disease treatments.

Hormones significantly affect hair and oil gland function in the skin, and more research is needed on skin-related hormone disorders.

No treatment fully prevents hair loss from chemotherapy yet.

Hormonal treatments, including birth control and antiandrogens, can effectively treat acne in women.

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

Notch/CSL signaling controls hair follicle differentiation through Wnt5a and FoxN1.

Hair follicles greatly increase caffeine absorption through the skin shortly after it's applied.

Researchers identified genes linked to coat color, body size, cashmere production, and high altitude adaptation in goats.

Using human fat tissue derived stem cells in micrografts can safely and effectively increase hair density in people with hair loss.

Targeted cancer therapies often cause skin reactions, so dermatologists must manage these effects.

Vitiligo is linked to autoimmune diseases and hearing issues, so hearing tests are recommended for patients.

Cancer patients treated with immune checkpoint inhibitors may develop alopecia, but some hair regrowth is possible with treatment.

Stem cells from hair follicles can safely treat hair loss.

The study found that diseases can be grouped by symptoms and that the accuracy of predicting disease-related genes varies with the data source.

New methods for skin and nerve regeneration can improve healing and feeling after burns.

Skin grafting can help repigment vitiligo, but it's less effective for widespread cases due to the Koebner phenomenon.

A certain smell receptor in hair follicles can affect hair growth when activated by a synthetic sandalwood scent.