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Skin cells produce and activate vitamin D, which regulates skin functions and supports hair growth.

Capsaicin, found in chili peppers, can slow down hair growth by affecting skin cells and hair follicles.

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.

Vitamin D and its receptor regulate skin functions like cell growth, immunity, hair cycle, and tumor prevention.

The dermal papilla is crucial for hair growth and health, and understanding it could lead to new hair loss treatments.

Too much Smad7 changes skin and hair development by breaking down a protein called β-catenin, leading to more oil glands and fewer hair follicles.

Understanding hair follicle anatomy helps diagnose hair disorders.

The HR protein helps hair grow by blocking a hair growth inhibitor, aiding in hair follicle regeneration.

The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.

Hair follicles produce and respond to melatonin, affecting hair growth and sensitivity to estrogen.

Hormones, especially androgens, play a big role in acne, but most acne sufferers don't have a hormone disorder. Hormonal treatments, including birth control pills, can be very effective for women whose acne doesn't improve with regular treatments.

Finasteride and minoxidil are effective for hair regrowth, while treatments for alopecia areata have varying success and continuous treatment is necessary.

Manipulating the catagen and telogen phases of hair growth could lead to treatments for hair disorders.

We need more research to better understand human hair follicle stem cells for improved treatments for hair loss and skin cancer.

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

The document concludes that the hair cycle is a complex process involving growth, regression, and rest phases, regulated by various molecular signals.

Growth factors and cytokines are important for hair growth and could potentially treat hair loss, but more research is needed to overcome challenges before they can be used in treatments.

There are many treatments for permanent hair loss disorders, but their effectiveness varies and there's no clear best option.

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

No treatment fully prevents hair loss from chemotherapy yet.

Grafted rodent and human cells can regenerate hair follicles, but efficiency decreases with age.

Finasteride improves hair loss in women with hyperandrogenism.

Prolactin affects hair growth cycles and can cause early hair follicle regression.

The document concludes that understanding the genes and pathways involved in hair growth is crucial for developing treatments for hair diseases.

Minoxidil helps hair growth by activating the β-catenin pathway.

Hair follicle stem cells helped heal a severe scalp burn without needing traditional skin grafts.

Drugs penetrate scalp skin better than abdominal skin, with scalp hair follicles aiding in higher drug delivery.

Hair shedding is an active process that could be targeted to treat hair loss.

Follistatin helps hair growth and cycling, while activin prevents it.

EVAL membranes help create cell structures that can regrow hair follicles.