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Scientists have improved 3D models of human skin for research and medical uses, but still face challenges in perfectly replicating real skin.

The document concluded that more research is needed to understand how estrogen affects the enzyme involved in hirsutism development.

Genes linked to fibrosis are more active in people with central centrifugal cicatricial alopecia.

Older people's sweat glands are less effective at helping skin wounds heal due to weaker cell connections.

CD4+ skin cells may be precursors to basal cell carcinoma.

Balding men, especially young ones, may have higher risk of heart issues and diabetes; check cholesterol levels.

Men with male pattern baldness have a higher risk of certain skin cancers, especially on the scalp.

Combination therapies for androgenetic alopecia work best but can have significant side effects and costs.

The chapter explains common scalp conditions, including infections, infestations, and tumors.

Surgical robots have improved but still can't perform tasks or make decisions on their own.

The document concludes that surgical robots improve surgery and recovery but are costly and can stress surgeons due to less patient contact.

PRP helps skin heal, possibly through special cells called telocytes.

PBMCsec can help reduce and improve thick skin scars.

Using a microscope during hair transplants cuts damage to follicles in half and could improve hair growth.

Dogs could be good models for studying human hair growth and hair loss.

Skin aging is due to impaired stem cell mobilization or fewer responsive stem cells.

The document concludes that for hair and feather growth, it's better to target the environment around stem cells than the cells themselves.

Nanotechnology could make hair loss treatments more effective and reduce side effects, but more research is needed before it's available.

Hair follicle cells resist turning into skin cells.

The nucleus is key in controlling skin growth and repair by coordinating signals, gene regulators, and epigenetic changes.

The document concludes that more research is needed to reduce frequent hospital visits, addiction medicine education improves with specific training, early breast cancer surgery findings are emerging, nipple smears are not very accurate, surgery for older melanoma patients doesn't extend life, a genetic condition in infants can often be treated with one drug, doctors are inconsistent with blood clot medication, a certain gene may protect against cell damage, muscle gene overexpression affects many other genes, and some mitochondrial genes are less active in mice with tumors.

Certain natural and synthetic compounds may help treat inflammatory skin diseases by targeting a specific signaling pathway.

The skin is a complex barrier for drug penetration, but understanding its structure and interactions can improve drug delivery methods.

Proteoglycans are important for hair growth, and a specific treatment can help reduce hair loss.

Using adipose-derived stem cell media with minoxidil may help regrow hair in men with hair loss.

The conclusion is that we need more effective hair loss treatments than the current ones, and these could include new drugs, gene and stem cell therapy, hormones, and scalp cooling, but they all need thorough safety testing.

Laser hair removal works well for people with dark hair and light skin, but it's less effective for light hair or dark skin; improvements are expected.

Understanding normal hair growth and loss in children is key to diagnosing and treating hair disorders.

Cathepsin L is essential for normal hair growth and development.

Outside factors like grooming, chemicals, and the environment can damage hair and cause disorders.