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Hair follicle stem cells are mainly in the bulge region and can help repair skin and form hair and glands, but more research is needed to fully understand them.

Tianzhu white yak hair varies in structure and density between fuzz and coarse hair.

Indian bison, black buck, and nilgai have distinct hair follicle patterns useful for species identification.

Stem cells in hair follicles are diverse and change throughout the hair cycle.

Hair follicle patterns form through a mix of self-organization and signaling interactions.

Hedgehog signaling can create new hair follicles in adult skin but may increase cancer risk.

The research found that specific stem cells maintain skin gland openings and that disrupting their activity can cause blockages or early cancer signs, indicating a need for targeted treatments.

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.

Activin A and Follistatin affect how mouse hair follicles grow.

Fibronectin is essential for hair follicle regeneration by supporting stem cells.