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Stress hormone corticosterone blocks a growth factor to slow down hair stem cell activity and hair growth.

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.

Long-term testosterone therapy can cause hormone suppression, affect prostate and heart health, and alter physical characteristics, but does not increase prostate cancer risk and needs more research for full risk assessment.

Electrospun nanofibers show promise for enhancing blood vessel growth in tissue engineering but need further research to improve their effectiveness.

β-Catenin signaling is involved in brain cell growth after injury and could be a therapy target.

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

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

Skin fat has important roles in hair growth, skin repair, immune defense, and aging, and could be targeted for skin and hair treatments.

Lamins are vital for cell survival, organ development, and preventing premature aging.

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

Conductive hydrogels show promise for medical uses like healing wounds and tissue regeneration but need improvements in safety and stability.

The review recommends hormone replacement therapy for women with premature ovarian insufficiency to manage symptoms and protect health, with specific approaches for different groups.

Activating Nrf2 protects human hair follicles from oxidative stress and helps prevent hair growth inhibition.

Multiphoton microscopy is a promising tool for detailed skin imaging and could improve patient care if its challenges are addressed.

Blocking Wnt signaling in young mice causes thymus shrinkage and cell loss, but recovery is possible when the block is removed.

Prolactin may play a significant role in skin and hair health and could be a target for treating skin and hair disorders.

Skin fat plays a key role in immune defense and healing beyond just storing energy.

Eclipta alba has many health benefits and contains compounds with potential for drug development.

Regenerative pharmacology, which combines drugs with regenerative medicine, shows promise for repairing damaged body parts and needs more interdisciplinary research.

Researchers created hair-inducing human cell clusters using a 3D culture method.

Some natural compounds may help overcome drug resistance in certain cancers, but more research is needed.

α3β1-integrin is crucial for maintaining normal hair follicle shape and function but not needed for the development of the surrounding skin.

Hoxc genes control hair growth through Wnt signaling.

Microneedle arrays with nanotechnology show promise for painless drug delivery through the skin but need more research on safety and effectiveness.

Hair growth is influenced by various body and external factors, and neighboring hairs communicate to synchronize regeneration.

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

Plant-based ingredients are effective and safe for modern skincare products.

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

Changing the amount of PLC5 in Arabidopsis affects root growth and drought resistance, with less PLC5 slowing root growth and more PLC5 improving drought tolerance but hindering root hair growth.

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.