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

Finasteride treats enlarged prostate and may help with baldness, but effects on sexual function and male fetuses are unclear.

Special fiber materials boost the healing properties of certain stem cells.

Scientists found a new, less invasive way to study body clocks using hair cells, which shows shift workers' body clocks don't match their lifestyles.

People who are more materialistic often expect life changes from buying things, leading to more debt and credit misuse.

Stem cell niches support, regulate, and coordinate stem cell functions.

Dermatoscopy and videodermatoscopy are useful for diagnosing and monitoring various skin, hair, and nail conditions.

Memory T cells in the skin balance staying put and moving into the blood, clustering around hair follicles, and increasing in number after infection.

Stem cell self-renewal is complex and needs more research for full understanding.

Trilostane effectively improved symptoms in dogs with a certain adrenal gland disorder.

Most people with systemic lupus erythematosus have skin problems, and skin symptoms are often the first sign of the disease.

The Sonic hedgehog pathway is crucial for new hair growth during mouse skin healing.

The document concludes that a better understanding of cell changes during wound healing could improve treatments for chronic wounds and other conditions.

Microneedles improve drug delivery in various body parts, are safe and painless, and show promise in cosmetology, vaccination, insulin delivery, and other medical applications.

Memory regulatory T cells need IL-7, not IL-2, to stay in peripheral tissues.

Male hormones affect COVID-19 severity and certain drugs targeting these hormones could help reduce the risk.

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.

Matriptase is crucial for keeping epithelial tissues healthy and functioning properly.

Fat cells in the skin help start healing and form important repair cells after injury.

Asia has made significant progress in tissue engineering and regenerative medicine, but wider clinical use requires more development.

The document concludes that while significant progress has been made in understanding skin biology and stem cells, more research is needed to fully understand their interactions with their environment.

The research identified various cell types in mouse and human teeth, which could help in developing dental regenerative treatments.

Men, especially older ones with health issues like prostate cancer, may have worse COVID-19 outcomes and could benefit from therapies targeting male hormones.

Tiny particles from stem cells help activate hair growth cells and encourage hair growth in mice without being toxic.

Foals with Rhodococcus equi infection often have other health problems that lower their chances of survival.

PDGFA/AKT signaling is important for the growth and maintenance of certain skin fat cells.

Skin surface lipids are important for skin health and altering them could help prevent aging and treat skin conditions.

Fullerenes show potential in skin care but need more safety research.

Removing both Atr and Trp53 genes in adult mice causes severe tissue damage and death due to DNA damage.