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The document concludes that specific cells are essential for hair growth and more research is needed to understand how to maintain their hair-inducing properties.

Macrophages help regrow hair by activating stem cells using AKT/β-catenin and TNF.

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

Hair follicle regeneration needs special conditions and young cells.

Wnt10b overexpression can regenerate hair follicles, possibly helping treat hair loss and alopecia.

Hair grays due to oxidative stress and fewer functioning melanocytes.

The conclusion is that hair growth can be improved by activating hair cycles, changing the surrounding environment, healing wounds to create new hair follicles, and using stem cell technology.

Human hair follicle stem cells can turn into multiple cell types but lose some of this ability after being grown in the lab for a long time.

PRP and HF-MSCs treatment improves hair growth, thickness, and density in androgenetic alopecia.

Dermal papilla cells help wounds heal better and can potentially grow new hair.

The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.

The study showed that hair follicle stem cells can maintain and organize themselves in a lab setting, keeping their ability to renew and form hair and skin.

Injected human hair follicle cells can create new, small hair follicles in skin cultures.

miR-22, a type of microRNA, controls hair growth and its overproduction can cause hair loss, while its absence can speed up hair growth.

The document concludes that mouse models are crucial for studying hair biology and that all mutant mice may have hair growth abnormalities that require detailed analysis to identify.

Maintaining the right amount of retinoic acid is crucial for healthy hair and skin.

Noncoding dsRNA boosts hair growth by activating TLR3 and increasing retinoic acid.

Modified rat stem cells on a special scaffold improved blood vessel formation and wound healing in skin substitutes.

Researchers developed a 3D model of human hair follicle cells that can help understand hair growth and test new hair loss treatments.

Hoxc genes control hair growth through Wnt signaling.

Researchers found a way to create cells from stem cells that act like human cells important for hair growth and could be used for hair regeneration treatments.

Hair follicle regeneration possible, more research needed.

Hormones and neuroendocrine factors control hair growth and color, and more research could lead to new hair treatment options.

Engineered skin substitutes can grow hair but have limitations like missing sebaceous glands and hair not breaking through the skin naturally.

Hair follicle regeneration in skin grafts may be possible using stem cells and tissue engineering.

Cell-based therapies using dermal papilla cells and adipocyte lineage cells show potential for hair regeneration.

Melatonin helps Cashmere goats grow more hair by affecting certain genes and cell pathways.

STAT5 activation is crucial for starting the hair growth phase.

Hair follicles are valuable for regenerative medicine and wound healing.

Fully regenerating human hair follicles not yet achieved.