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Skin development in mammals is controlled by key proteins and signals from underlying cells, involving stem cells for maintenance and repair.

A certain smell receptor in hair follicles can affect hair growth when activated by a synthetic sandalwood scent.

The TGF-β family helps control how cells change and move, affecting skin, hair, and organ development.

Certain steroids in the brain affect mood and symptoms of depression, and treatments targeting these steroids show promise for improving these symptoms.

Activin helps skin growth and healing mainly through stromal cells and affects keratinocytes based on its amount.

Follistatin helps hair growth and cycling, while activin prevents it.

Lichen Planopilaris and Frontal Fibrosing Alopecia may help us understand hair follicle stem cell disorders and suggest new treatments.

New methods have greatly improved our understanding of stem cell behavior and roles in the body.

Smart biomaterials that guide tissue repair are key for future medical treatments.

Hidradenitis suppurativa is caused by genetic factors, inflammation, bacteria, hormones, and lifestyle factors like obesity and smoking.

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

Muscles and nerves that cause goosebumps also help control hair growth.

Some common medications can harm male fertility, but many effects can be reversed.

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

Costunolide may have multiple health benefits, including promoting hair growth and protecting against cancer and diabetes, but more research is needed.

Targeting the skin's endocannabinoid system could help treat skin disorders.

The circadian clock influences the behavior and regeneration of stem cells in the body.

5α-reductase inhibitors can cause sexual problems, higher risk of aggressive prostate cancer, and depression.

Zinc deficiency in children can cause skin issues and can be serious if not diagnosed and treated properly.

Restoring mitochondrial function in mice reversed their skin wrinkling and hair loss.

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.

Mice lacking a key DNA methylation enzyme in skin cells have a lower chance of activating stem cells necessary for hair growth, leading to progressive hair loss.

S5αR inhibitors might help treat schizophrenia and other mental disorders but need more research.

S100A4 and S100A6 proteins may activate stem cells for hair follicle regeneration and could be potential targets for hair loss treatments.

Progress has been made in skin and nerve regeneration, but more research is needed to improve methods and ensure safety.

5-alpha reductase inhibitors can cause sexual side effects like erectile dysfunction and reduced sexual desire, sometimes lasting after stopping the drug.

Human hair follicles produce and respond to erythropoietin, helping protect against stress.

The p53 protein helps control hair follicle shrinking by promoting cell death in mice.

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