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Macrophages help heal nerves by aiding the maturation of Schwann cells and are important for nerve repair.

Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.

Mice hair growth patterns get more complex with age and can change with events like pregnancy or injury.

The telogen phase of hair growth is active and important for preparing hair follicles for regeneration, not just a resting stage.

Fibroblast growth factor receptor signaling controls cell development and repair, and its malfunction can cause disorders and cancer, but it also offers potential for targeted therapies.

The update highlights that non-classic congenital adrenal hyperplasia is common in women with excess male hormones, requires specific hormone tests for diagnosis, and has various treatment options depending on age and symptoms.

Lowering testosterone speeds up wound healing in male mice.

PDGFA/AKT signaling is important for the growth and maintenance of certain skin fat cells.

The p75 neurotrophin receptor is important for hair follicle regression by controlling cell death.

Lower SHBG levels may increase the risk of PCOS.

The circadian clock is crucial for tissue renewal and regeneration, affecting stem cell functions and having implications for health and disease.

Finasteride treats enlarged prostate, shrinks it, improves urination, but may cause sexual dysfunction and isn't for women or children.

The skin protects the body and is constantly renewed by stem cells; disruptions can lead to cancer.

Effective hair loss treatment in women requires correct diagnosis and can include medications like minoxidil, antiandrogens, and treatments for underlying conditions like PCOS.

Stress hormone corticosterone blocks a growth factor to slow down hair stem cell activity and hair growth.

Muscles and nerves that cause goosebumps also help control hair growth.

New treatments for Alopecia Areata, like JAK inhibitors, show promise for hair regrowth and are likely to change future treatment approaches.

Beta-sitosterol has potential health benefits but needs more research to fully understand its effects and improve its use in treatments.

Advanced nanocarrier and microneedle drug delivery methods are more effective, safer, and less invasive for treating skin diseases.

Hirsutism is excessive hair growth in women often caused by polycystic ovarian syndrome, and identifying the cause is important for managing associated health risks.

People with alopecia areata often have lower levels of vitamin D, zinc, and folate, but more research is needed to understand if supplements can help treat it.

Hedgehog signaling helps keep hair follicle stem cells the same in both young and old human skin.

Environmental factors at different levels control hair stem cell activity, which could lead to new hair growth and alopecia treatments.

The document concludes that the skin's immune system is complex, involving interactions with hair follicles, nerves, and microbes, and can protect or cause disease, offering targets for new treatments.

Blocking Wnt signaling in young mice causes thymus shrinkage and cell loss, but recovery is possible when the block is removed.

Different factors affect where drugs are absorbed in the small intestine, which is important for effective medication use.

Keratinocytes control how melanocytes work.

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.

The document explains different types of hair loss, their causes, and treatments, and suggests future research areas.

5α-reductase inhibitors and alpha-1 adrenergic antagonists together effectively treat benign prostatic hyperplasia, with long-term benefits.