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More dermal papilla cells in hair follicles lead to larger, healthier hair, while fewer cells cause hair thinning and loss.

Certain cells from hair follicles can create new hair and contribute to hair growth when implanted in mice.

Researchers created human hair follicles using a new method that could help treat hair loss.

Wnt ligands are crucial for hair growth and repair.

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.

Different types of stem cells in hair follicles play unique roles in wound healing and hair growth, with some stem cells not originating from existing hair follicles but from non-hair follicle cells. WNT signaling and the Lhx2 factor are key in creating new hair follicles.

The document concludes that more research is needed to better understand and treat primary cicatricial alopecias, and suggests a possible reclassification based on molecular pathways.

The dermal papilla is crucial for hair growth and health, and understanding it could lead to new hair loss treatments.

The niche environment controls stem cell behavior and plasticity, which is important for tissue health and repair.

Different types of stem cells with unique roles exist in blood, skin, and intestines, and this variety is important for tissue repair.

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

Stem cells in the hair follicle are regulated by their surrounding environment, which is important for hair growth.

Low oxygen conditions increase the hair-growing effects of substances from fat-derived stem cells by boosting growth factor release.

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.

Damage to skin releases dsRNA, which activates TLR3 and helps in skin and hair follicle regeneration.

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

There are many treatments for permanent hair loss disorders, but their effectiveness varies and there's no clear best option.

Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.

The Wnt/β-catenin pathway is important for tissue development and has potential in regenerative medicine, but requires more research for therapeutic use.

Conditioned media from mesenchymal stem cell cultures could be a more effective alternative for regenerative therapies, but more research is needed.

Platelet-rich plasma might help tissue regeneration in dentistry, but results vary and more research is needed.

NF-κB is crucial for zebrafish heart repair, affecting heart cell growth and repair processes.

Keratin 15 is not a reliable sole marker for identifying epidermal stem cells because it's found in various cell types.

Hair follicle regeneration needs special conditions and young cells.

Cells in hair follicles help create fat cells in the skin by releasing a protein called Sonic Hedgehog.

Aging mice have slower hair regeneration due to changes in signal balance, but the environment, not stem cell loss, controls this, suggesting treatments could focus on environmental factors.

Some hair loss can be treated, especially in women due to nutrition, but some types remain untreatable.

Prostaglandin D2 blocks new hair growth after skin injury through the Gpr44 receptor.

Epidermal stem cells could lead to new treatments for skin and hair disorders.

The document concludes that understanding hair and feather regeneration can help develop new regenerative medicine strategies.