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Alopecia areata causes hair loss due to an immune attack on hair follicles, influenced by genetics and environment.

Transplanted skin on hooded rats often grows white hair instead of black.

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

Transplanted baby mouse skin cells grew normal hair using a new, efficient method.

Using a polarized LED magnifier during hair transplants eases recipient site creation and reduces eye strain but doesn't improve graft creation or placement.

The document concludes that understanding how hair follicles naturally die and regenerate is important for insights into organ development and could impact health and disease treatment.

Hair ages and thins due to factors like inflammation and stress, and treatments like antioxidants and hormones might improve hair health.

Using a polarized LED magnifier during hair transplants makes creating recipient sites easier and may increase hair density.

Hair color is determined by melanin produced and transferred in hair follicles.

As people age, their hair follicles produce less pigment, leading to gray and white hair, due to factors like reduced enzyme activity and damage to melanocyte DNA.

Bioengineering can potentially treat hair loss by regenerating hair follicles and cloning hair, but the process is complex and needs more research.

Hair greying is linked to reduced ATM protein in hair cells, which protects against stress and damage.

miR-31 regulates hair growth by controlling gene expression in hair follicles.

Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.

The Wnt/β-catenin pathway can activate melanocyte stem cells and may help regenerate 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.

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

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

Hair grays due to oxidative stress and fewer functioning melanocytes.

Autophagy is important for human hair growth and health.

Hair can regrow in large wounds through a process similar to how hair forms in embryos, and understanding this could lead to new treatments for hair loss or scarring.

Wnt proteins from certain skin cells are crucial for normal hair growth and renewal.

Researchers developed a new method to test hair growth drugs and found that adult cells are best for hair growth, but the method needs improvement as it didn't create mature hair follicles.

A woman with alopecia totalis regrew dark hair in bands after using a corticosteroid ointment.

The document explains hair growth, hair loss types, and other hair-related terms.

The document concludes that understanding hair follicle biology can lead to better hair loss treatments.

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

Hair follicle regeneration needs special conditions and young cells.

mTOR signaling helps activate hair stem cells by balancing out the suppression caused by BMP during hair growth.

TPA promotes hair growth by increasing stem cell activity and activating specific cell signals.