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Women's hair gets thinner and grayer as they age, with treatments available for hair loss and graying.

The guideline recommends mental health involvement in diagnosing gender identity disorder and outlines hormone and surgical treatment protocols, emphasizing safety, informed consent, and long-term monitoring.

Testosterone therapy improves physical function, strength, and body composition in older men with low testosterone levels.

Fat-related cells are important for initiating hair growth.

Changing the environment around stem cells could help tissue repair, but it's hard to be precise and avoid side effects.

The enzyme steroid sulfatase is linked to breast cancer and other conditions, and inhibitors are being developed for treatment.

Anabolic steroids can build muscle and strength but have risks and need more research on their clinical benefits and side effects.

Improving artificial vascular grafts requires better materials and surface designs to reduce blood clotting and support blood vessel cell growth.

Hair growth phase and certain genes can speed up wound healing, while an inflammatory mediator can slow down new hair growth after a wound. Understanding these factors can improve tissue regeneration during wound healing.

Anticancer drugs are increasingly found in surface waters, and their long-term environmental effects are not well understood, requiring better testing methods.

The document concludes that the understanding of scar formation is incomplete and current prevention and treatment for hypertrophic scars and keloids are not fully effective.

Stem cells are crucial for skin repair and new treatments for chronic wounds.

Androgen deprivation therapy for prostate cancer can cause sexual, physical, and psychological side effects, and doctors should manage these carefully.

Noggin is necessary to start the hair growth phase in skin after birth.

Iron deficiency may be related to hair loss, but there's not enough evidence to recommend iron screening or supplements for all hair loss patients.

Stem cell niches are crucial for regulating stem cell renewal and differentiation, and understanding them can help in developing regenerative therapies.

Alopecia areata is likely an autoimmune disease with unclear triggers, involving various immune cells and molecules, and currently has no cure.

Peptide hydrogels heal burn wounds faster and better than standard dressings.

Eating less sugar, milk, and saturated fats and more vegetables and fish may help treat and prevent acne.

Platelet-rich plasma might help with hair growth and skin conditions, but more research is needed to prove its effectiveness and safety.

The article concludes that the wool follicle is a valuable model for studying tissue interactions and has potential for genetic improvements in wool production.

Researchers found a specific immune receptor in patients that causes severe skin reactions to a drug.

S100A4 and S100A6 proteins may activate stem cells for hair follicle regeneration and could be potential targets for hair loss treatments.

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

Topical drugs and near-infrared light therapy show potential for treating alopecia.

Advanced hydrogel systems with therapeutic agents could greatly improve acute and chronic wound treatment.

The document concludes that alopecia areata is an autoimmune disease without a definitive cure, but treatments like corticosteroids are commonly used.

Lower levels of certain brain chemicals are linked to worse PTSD symptoms in men.

Different types of androgens bind differently to two receptors, AR1 and AR2, in Atlantic croaker's brain and ovarian tissues, suggesting these receptors may control different androgen actions in fish.

Nanocarrier-loaded gels improve drug delivery for cancer, skin conditions, and hair loss.