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Sex hormones affect hair and feather growth and may help manage alopecia and hormone-dependent cancers.

Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.

Nerves are crucial for the regeneration of various body parts in many animals.

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

Skin problems can be caused or worsened by physical forces and pressure on the skin.

Mice lacking Insig proteins had hair growth problems due to cholesterol buildup, but this was fixed by the drug simvastatin.

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

Scalp cooling can help prevent chemotherapy-induced hair loss with a 50-90% success rate and is safe for patients.

PDGF-BB helps young melanocytes grow but stops mature ones from growing, and it makes melanocytes more specialized.

RCS-01 therapy is safe and may improve skin structure by affecting gene expression.

Keratin 18 helps diagnose and predict cancer progression and affects cancer growth and spread.

Msx and Dlx genes are crucial for development, controlling cell behaviors like growth and differentiation through their roles as gene regulators.

Artificial skin development has challenges, but new materials and understanding cell behavior could improve tissue repair. Also, certain growth factors and hydrogel technology show promise for advanced skin replacement therapies.

Androgens can cause hair growth in some areas and hair loss on the scalp.

Vitamin D has potential benefits for cancer prevention, heart health, diabetes, obesity, muscle function, skin health, and immune function, but clinical results are mixed and more research is needed.

A WNT10A gene mutation leads to ectodermal dysplasia by disrupting cell growth and differentiation.

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

Sebaceous glands play a key role in skin health, immunity, and various skin diseases.

Burn scars heal abnormally and more research is needed to find better treatments.

Scientists created cell lines from balding patients and found that cells from the front of the scalp are more affected by hormones that cause hair loss than those from the back.

A specific type of immune cells, called CD301b-expressing macrophages, are crucial for skin repair processes.

A two-step method was created in 2015 to make more cells that help with hair growth, but they need to be combined with other cells for 4 days to actually form new hair.

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

The document concludes that using stem cells to regenerate hair follicles could be a promising treatment for hair loss, but there are still challenges to overcome before it can be used clinically.

Understanding hair growth involves complex interactions between molecules and could help treat hair disorders.

Hair growth is influenced by interactions between skin layers, growth factors, and hormones, but the exact mechanisms are not fully understood.

Human nails and hair follicles have similar gene activity, especially in the cells that contribute to their growth and development.

Different stem cells are key for hair growth and health, and understanding their regulation could help treat hair loss.

Eating grape powder may reduce the severity of skin allergy symptoms.

BMP signaling is important for skin color, affecting melanin production, pigment spread, and cell movement.