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Hair follicles are complex, dynamic mini-organs that help us understand cell growth, death, migration, and differentiation, as well as tissue regeneration and tumor biology.

Skin stem cells are maintained by signals from nearby cells and vary in their ability to renew and mature.

Finasteride shows promise for treating hair loss and excessive hair growth, but more research is needed to confirm its effectiveness and safety.

Testosterone is crucial for development, growth, and various body functions in mammals.

Hair growth phase and certain genes can speed up wound healing, while an inflammatory mediator can slow down new hair growth after a wound. Understanding these factors can improve tissue regeneration during wound healing.

The human hair follicle can store topical compounds and be targeted for drug delivery with minimal side effects.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

The document concludes with guidance for doctors on diagnosing and treating hirsutism effectively and safely.

The document concludes that lifestyle changes and medical treatments can significantly reduce symptoms of Hidradenitis Suppurativa, a chronic skin condition.

A woman developed psoriasis after taking certolizumab pegol, improving after stopping the drug and starting other treatments.

Antiandrogen therapies are beneficial for treating skin and hair conditions related to androgen levels.

Acne and increased body hair in teenage girls are normal but severe cases may need hormone evaluation and treatment can prevent diabetes linked to PCO.

Birth control pills with low-dose estrogen and antiandrogenic progestins can effectively treat acne.

New treatments for hair loss show promise, including plasma, stem cells, and hair-stimulating complexes, but more research is needed to fully understand them.

Skin stem cells are crucial for maintaining and repairing the skin and hair, using a complex mix of signals to do so.

Epithelial-mesenchymal interactions control hair growth cycles through specific molecular signals.

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

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

New research suggests that skin cell renewal may not require a special type of cell previously thought to be essential.

Different types of stem cells with unique roles exist in blood, skin, and intestines, and this variety is important for tissue repair.

Prolactin contributes to hair loss by promoting hair follicle shrinkage and cell death.

Blocking β-catenin in skin cells improves hair growth during wound healing.

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

Menopause reduces skin collagen and elasticity, and while estrogen therapy can help, its risks require careful consideration.

Graft-versus-host disease is a complication where donor immune cells attack the recipient's body, often affecting the skin, liver, and gastrointestinal tract.

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

Androgens play a complex role in skin conditions like acne and hair loss in women, and normal blood levels don't always show true androgen status.

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.

The protein StAR is found in 17 different organs and can affect hair loss and brain functions, but its full role is not yet fully understood.

Aging in hair follicle stem cells leads to hair graying, thinning, and loss.