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

Blocking Wnt signaling in young mice causes thymus shrinkage and cell loss, but recovery is possible when the block is removed.

Testosterone and dihydrotestosterone affect hair growth, and new techniques like the folliculogram help study it, but fully understanding hair growth is still complex.

Dogs could be good models for studying human hair growth and hair loss.

People with X-linked hypohidrotic ectodermal dysplasia have no sweat ducts and less, thinner hair.

Melanoma development can be linked to the breakdown of skin's melanin-producing units.

Proteoglycans are important for hair growth, and a specific treatment can help reduce hair loss.

Hair growth is influenced by hormones and goes through different phases; androgens can both promote and inhibit hair growth depending on the body area.

The document concludes that hair biology is complex and there are still unanswered questions about hair loss and follicle changes.

Hair loss can be reversed or even cured using advanced hair restoration techniques, with rare complications like swelling and bleeding.

Micrografts and minigrafts for hair restoration provide high patient satisfaction and can cover large areas of hair loss, including sideburns, eyebrows, and beards.

Eyebrow hair transplants can regrow after high-dose radiation therapy.

Modern hair restoration techniques can effectively treat hair loss and provide natural-looking results.

Using platelet growth factors can improve hair density in transplants, especially for those with fine hair.

Lichen planopilaris is a rare, chronic condition causing hair loss, mainly in middle-aged women, and early treatment is important to prevent permanent baldness.

Integrin alphavbeta6 is important for wound healing and hair growth, and blocking it may improve these processes.

Transfollicular drug delivery is promising but needs more research to improve and understand it better.

Finasteride negatively affects fish reproduction and gonadal development.

Dirty dots are a common scalp finding in elderly women and can be washed away with shampoo.

The document concludes that sex hormones are crucial for mammalian reproduction, health, and behavior, and require more research for therapeutic use.

Acne is a common skin condition linked to diet, hormones, and genetics, and early treatment can prevent scarring.

Different types of stem cells in hair follicles play unique roles in wound healing and hair growth, with some stem cells not originating from existing hair follicles but from non-hair follicle cells. WNT signaling and the Lhx2 factor are key in creating new hair follicles.

ICAM-1 helps regulate hair growth cycles and skin remodeling.

EGFR helps mouse hair follicles stop growing by reducing certain growth regulators.

BMP signaling is crucial for skin and hair growth.

Faulty Notch signalling may cause hair follicle changes and inflammation in hidradenitis suppurativa.

Non-scarring alopecia in females affects emotional well-being and requires accurate diagnosis and personalized treatment.

Topical finasteride might be a good alternative for hair loss treatment with fewer side effects, but more research is needed.

TrichoxidilTM could be a promising new treatment for hair loss.

Jagged1 and Epidermal Growth Factor together significantly increased hair growth in mice with androgen-suppressed hair.