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Human hair keratin can be used in many medical applications.

The best method for urethral reconstruction is using hypoxia-preconditioned stem cells with autologous cells on a vascularized synthetic scaffold.

Rice bran extract boosts melanin production in hair follicles.

Adult mice can grow new hair from skin wounds.

The new SIS-PEG sponge is a promising material for skin regeneration and hair growth.

The document concludes that while some organisms can regenerate body parts, mammals generally cannot, and cancer progression is complex, involving mutations rather than a strict stem cell hierarchy.

Skin bacteria, specifically Staphylococcus aureus, help in wound healing and hair growth by using IL-1β signaling. Using antibiotics on skin wounds can slow down this natural healing process.

Fully regenerating human hair follicles not yet achieved.

The skin has a complex immune system that is essential for protection and healing, requiring more research for better wound treatment.

The secretome from mesenchymal stem cells is a promising treatment that may repair tissue and avoid side effects of stem cell transplantation.

Different types of stem cells exist within individual skin layers, and they can adapt to damage, transplantation, or tumor growth. These cells are regulated by their environment and genetic factors. Tumor growth is driven by expanding, genetically altered cells, not long-lived mutant stem cells. There's evidence of cancer stem cells in skin tumors. Other cells, bacteria, and genetic factors help maintain balance and contribute to disease progression. A method for growing mini organs from single cells has been developed.

Male pattern baldness involves hormones and cell signals affecting hair growth.

Androgens have complex effects on hair growth, promoting it in some areas but causing hair loss in others, and our understanding of this is still evolving.

The conclusion is that an algorithm using trichoscopy helps diagnose different types of hair loss but may need updates and a biopsy if results are unclear.

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

Keratin proteins are crucial for healthy skin, but mutations can cause skin disorders with no effective treatments yet.

Hoxc genes control hair growth through Wnt signaling.

Dermoscopy effectively distinguishes between acute total hair loss and other types of female hair loss.

Leptin, a hormone, is important for starting hair growth.

The document concludes that freeze-dried platelet-rich plasma shows promise for medical use but requires standardization and further research.

The study found stem cells in minor salivary glands that can differentiate and are involved in tumor formation when exposed to tobacco.

Some patients with severe alopecia areata developed skin darkening from their treatment, which may indicate a less effective response to the therapy.

Decorin, a protein, may help start hair growth and could be used to treat hair loss.

Wearing wigs or hairpieces improves self-esteem, adaptability, and competence in women with alopecia areata.

Low oxygen levels improve the function of hair and skin cells when they are in direct contact.

Injected cells show potential for hair growth.

Trichoscopy is a useful tool for diagnosing hair and scalp diseases without needing skin biopsies.

PRP treatment increased hair density, especially in men and younger patients with AGA.

Different stem cells have benefits and challenges for tissue repair, and more research is needed to find the best types for each use.