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Hair area varies with age and sex, but hair index and medullary index do not.

The unit area trichogram is a reliable method to assess hair loss and treatment response in people with androgenic alopecia by measuring hair density and thickness.

Understanding hair surface properties is key for effective hair care products.

Curly hair is mechanically different from straight hair and may need new testing methods.

Juglone from walnut extracts may help repair damaged hair.

Zinc is essential for plant growth and human health, but many soils lack enough zinc, affecting crops and potentially leading to health problems.

Hairless mammals have genetic changes in both their protein-coding and regulatory sequences related to hair.

Pili anulati may cause hair loss, proper diagnosis and treatment needed.

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

Hair transplantation in East Asians needs special techniques to ensure natural results and prevent complications due to their unique hair and scalp characteristics.

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

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

Different hair evaluation methods have their own pros and cons, and using multiple methods together is best for accurate hair loss diagnosis and tracking.

The study found that a specific area of the hair follicle helps start hair growth by reducing the blocking effects on certain cells and controlling growth signals.

Researchers found that bulge cells from human hair can grow quickly in culture and have properties of hair follicle stem cells, which could be useful for skin treatments.

Stem cells can help regenerate hair follicles.

Lgr5 is a marker for active, long-lasting stem cells in mouse hair follicles.

Nerve signals are crucial for hair follicle stem cells to become skin stem cells and help in wound healing.

The conclusion is that proper signaling is crucial for hair growth and development, and errors can lead to cancer or hair loss.

Wnt signaling controls whether hair follicle stem cells stay inactive or regenerate hair.

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

Stem cell therapy, particularly using certain types of cells, shows promise for treating hair loss by stimulating hair growth and development, but more extensive trials are needed to confirm these findings.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Topical drugs and near-infrared light therapy show potential for treating alopecia.

Human hair follicle cells can grow hair when put into mouse skin if they stay in contact with mouse cells.

Certain signals and genes play a key role in hair growth and regeneration, and understanding these could lead to new treatments for skin regeneration.

Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.

Mice can grow new hair follicles after skin wounds through a process not involving existing hair stem cells, but requiring more research to understand fully.

Blocking Wnt/β-catenin signaling with EGF receptor is necessary for proper hair growth.

The method allows for 3D tracking of hair follicle stem cells and shows they can regenerate hair for up to 180 days.