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Hair aging is caused by stress, hormones, inflammation, and DNA damage affecting hair growth and color.

Increasing Wnt10b levels can help grow new hair follicles in mice.

Older hair follicle stem cells have a reduced ability to renew themselves, leading to more hair loss.

Understanding how melanocyte stem cells work could lead to new treatments for hair graying and skin pigmentation disorders.

Intense pulsed light treatment mainly damages pigmented hair parts but spares stem cells, allowing hair to regrow.

Skin stem cells remember past inflammation, helping them respond better to future injuries and possibly aiding in treating skin issues.

Regenerated fully functional hair follicles using stem cells, with potential for hair regrowth therapy.

Light can turn on hair growth cells through a nerve path starting in the eyes.

Found microRNA differences in hair cells, suggesting potential treatment targets for hair loss.

T-cell reconstitution after thymus transplantation can cause hair whitening and loss.

Dermal stem cells help regenerate hair follicles and heal skin wounds.

The research found that different types of fibroblasts are involved in wound healing and that some blood cells can turn into fat cells during this process.

Hair grows faster in the morning and is more vulnerable to damage from radiation due to the internal clock in hair follicle cells.

A WNT10A gene mutation leads to ectodermal dysplasia by disrupting cell growth and differentiation.

The document concludes that while "hair follicle cloning" shows promise for unlimited donor hair, it faces challenges with consistency and safety in humans.

Lab-made tissues from dog fat stem cells can help grow hair by releasing a growth factor.

Tissue from dog stem cells helped grow hair in mice.

Notch/CSL signaling controls hair follicle differentiation through Wnt5a and FoxN1.

Certain mice without specific receptors or mast cells don't lose hair from stress.

The document concludes that understanding hair follicle cell cycles is crucial for hair growth and alopecia research, and recommends specific techniques and future research directions.

New treatments targeting the Hedgehog pathway can help treat advanced skin cancer but may have side effects and their effectiveness in early stages is unknown.

The research created a detailed map of skin cells, showing that certain cells in basal cell carcinoma may come from hair follicles and could help the cancer grow.

Alopecia areata is a hair loss condition caused by immune factors and can be treated with JAK inhibitors.

Polarized light therapy helps hair regrowth in alopecia areata patients.

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

Human hair keratins can self-assemble and support cell growth, useful for biomedical applications.

Dermal fibroblasts have adjustable roles in wound healing, with specific cells promoting regeneration or scar formation.

Hoxc genes control hair growth through Wnt signaling.

Skin organoids from stem cells could better mimic real skin but face challenges.

The conclusion is that certain cell interactions and signals are crucial for hair growth and regeneration.