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Humans lost body hair relatively recently in evolution.

Alopecia areata is an autoimmune disease causing patchy hair loss, often with other autoimmune disorders, but its exact causes are unknown.

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

Stem cell therapy, particularly using certain types of cells, shows promise for treating hair loss by stimulating hair growth and development, but more extensive trials are needed to confirm these findings.

MicroRNA-302 helps improve the conversion of body cells into stem cells by blocking NR2F2.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

The sebaceous gland has more roles than just producing sebum and contributing to acne, and new research could lead to better skin disease treatments.

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

Androgenetic alopecia involves genetics, hormones, and can be treated with medications or surgery.

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

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

Hormones and genetics affect hair growth and patterns, with some changes reversible and others not.

Isotretinoin's effects and side effects, like birth defects and depression, might be due to it causing cell death in various cells.

Androgens can both promote and prevent hair growth due to differences in gene expression in hair follicles.

Wound healing insights can improve regenerative medicine.

Improving the environment and cell interactions is key for creating human hair in the lab.

Stem cells help repair tissue mainly by releasing beneficial substances, not by replacing damaged cells.

New methods to improve the healing abilities of mesenchymal stem cells for disease treatment are promising but need more research.

Platelet lysate is a promising, cost-effective option for regenerative medicine with potential clinical applications.

PRP shows promise for hair loss treatment, with three initial monthly injections and maintenance every 3-6 months.

Micrografts improve hair density and thickness without side effects.

Fetal cells could improve skin repair with minimal scarring and are a potential ready-to-use solution for tissue engineering.

RADA16 is a promising material for tissue repair and regenerative medicine but needs improvement in strength and cost.

Lizards can regrow their tails, and studying this process helps understand scar-free healing and limb regeneration.

Tiny particles called extracellular vesicles could help with skin healing and hair growth, but more research is needed.

People with Major Depressive Disorder have a higher chance of getting Alopecia Areata, and vice versa; antidepressants may lower this risk.

The document concludes that there are various treatments for different types of alopecia, but more research is needed for evidence-based treatments.

Caffeine applied to the scalp can protect hair follicles from UV damage.

Loss of Fz6 disrupts hair follicle and associated structures' orientation.

Understanding glycans and enzymes that alter them is key to controlling hair growth.