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Hair grays due to oxidative stress and fewer functioning melanocytes.

The conclusion is that hair growth can be improved by activating hair cycles, changing the surrounding environment, healing wounds to create new hair follicles, and using stem cell technology.

Most dermatologic medications are safe during pregnancy and breastfeeding, but some should be avoided due to potential risks.

PRP and HF-MSCs treatment improves hair growth, thickness, and density in androgenetic alopecia.

Shrinking skin cancer increases the chance of cancer in nearby lymph nodes.

Melanocyte development from neural crest cells is complex and influenced by many factors, and better understanding could help treat skin disorders.

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

The conclusion is that the best initial treatment for hirsutism is usually oral contraceptives, with the addition of antiandrogens or insulin sensitizers if needed, and topical eflornithine or laser treatments as supplementary options.

Skin fat has important roles in hair growth, skin repair, immune defense, and aging, and could be targeted for skin and hair treatments.

Lamins are vital for cell survival, organ development, and preventing premature aging.

Epidermal stem cells could lead to new treatments for skin and hair disorders.

Tight hairstyles and chemical relaxers can cause hair loss known as traction alopecia.

Keratin 79 marks a new group of cells that are key for creating and repairing the hair follicle's structure.

There are still challenges in diagnosing and treating chronic skin diseases, but there is hope for future improvements.

Graft-versus-host disease is a complication where donor immune cells attack the recipient's body, often affecting the skin, liver, and gastrointestinal tract.

Minoxidil and pyrithione zinc combo most effectively increases hair density.

Hair can regrow after certain stem cells are lost because other stem cells can take over their role.

Activating β-catenin in different skin stem cells causes various types of hair growth and skin tumors.

Scarring alopecia affects different hair follicle stem cells than nonscarring alopecia, and the infundibular region could be a new treatment target.

The guide explains how to identify and treat children's hair loss, including fungal infections, autoimmune disorders, hairstyle changes, self-correcting conditions, and behavioral therapy for hair-pulling.

Some patients developed skin inflammation after obesity surgery, and a medication called dapsone helped treat it.

The document explains hair growth and shedding, factors affecting it, and methods to evaluate hair loss, emphasizing the importance of skin biopsy for diagnosis.

Maintaining the right amount of retinoic acid is crucial for healthy hair and skin.

Microsurgical reconstruction effectively covers complex scalp defects but doesn't improve survival for cancer-related cases.

The document concludes that post-menopausal frontal fibrosing alopecia is a poorly understood condition that does not respond well to common treatments.

New treatments for acne scars are safer and more effective because we understand the causes better.

Wnt signaling is important for development and cell regulation but can cause diseases like cancer when not working properly.

Hair analysis for drugs needs a better understanding of how drugs enter hair, considering factors like hair structure and pigmentation.

Different skin stem cells help heal wounds, with hair follicle cells becoming more important over time.

Mice can grow new hair follicles after skin wounds through a process not involving existing hair stem cells, but requiring more research to understand fully.