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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.

Young adults have about 230,000 tactile nerve fibers, decreasing 5-8% per decade with age.

Understanding hair follicle anatomy helps diagnose hair disorders.

Periodontal ligament stem cells show promise for regrowing tissues but require more research for safe, effective use.

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

Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.

Trichoscopy can diagnose female hair loss with high accuracy by looking for specific patterns in hair and scalp appearance.

The conclusion is that FFA and LPP have similar scalp biopsy features, making them hard to distinguish histologically, and FFA may be a specific kind of scarring hair loss.

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

Substances from Chinese medicines show promise for immune support and disease prevention, but the way they are processed affects their effectiveness.

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

Minoxidil can help grow hair in mice by making cells grow and improving hair quality. More research needed.

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.

Tiny particles from stem cells help activate hair growth cells and encourage hair growth in mice without being toxic.

Hair, teeth, and mammary glands develop similarly at first but use different genes later.

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

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

Researchers found that hair shedding happens mostly when new hair is growing and involves a unique process.

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

The TGM3 gene's promoter region is key for skin and hair cell function and may aid gene therapy.

MicroRNA-214 is important for skin and hair growth because it affects the Wnt pathway.

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.

All-trans retinoic acid causes hair loss by increasing TGF-β2 in hair follicle cells.