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Hair aging and loss are caused by genetics, hormones, environment, and grooming, with treatments like minoxidil effective for certain types of hair loss.

The Hairless gene is crucial for healthy skin and hair growth.

Hair aging is inevitable, but using the right hair care products can help maintain hair health.

Eph/ephrin signaling is important for skin cell behavior and could be targeted to treat skin diseases.

Mushroom-based scaffolds help heal skin wounds and regrow hair.

Blocking the Wnt pathway could lead to new treatments for cancer and tissue repair but requires careful development to avoid side effects.

The study found that immune responses disrupt hair growth cycles, causing hair loss in alopecia areata.

Fadrozole and finasteride change gene expression related to sex hormones and thyroid hormones in frog larvae development.

The document concludes that mouse models are crucial for studying hair biology and that all mutant mice may have hair growth abnormalities that require detailed analysis to identify.

Human hair has a protective lipid layer that can be damaged by moisture and treatments, affecting hair growth and health.

Adult stem cells are important for tissue repair and have therapeutic potential, but more research is needed to fully use them.

Wnt3a activates certain genes in hair follicle cells, including a newly discovered one, EP2, which may affect hair growth.

R-spondins and their receptors help increase bone growth and may be used to treat bone loss diseases.

The ketogenic diet can worsen biotin deficiency, suggesting a need for biotin supplements.

Involucrin helps strengthen the inner parts of human hair.

Hair's resistance to wear varies by ethnicity and treatment, with less wear indicating stronger hair.

Scientists successfully purified a protein called Wnt3a, which is involved in processes like hair growth, but the overall yield was low, suggesting more work is needed to improve this.

Some chemicals and drugs can cause hair loss, which usually grows back after stopping the treatment.

Air pollution worsens skin diseases and aging by causing inflammation and oxidative stress.

Some drugs can cause skin, nail, and hair problems, which are important for healthcare professionals to recognize and report.

Lignans and neolignans from plants may help protect against various health issues, including cancer and heart disease.

The document concludes that understanding the genes and pathways involved in hair growth is crucial for developing treatments for hair diseases.

Conditioned media from mesenchymal stem cell cultures could be a more effective alternative for regenerative therapies, but more research is needed.

Androgens play a role in female sexual function, and testosterone therapy can help women with low sexual desire, but more research is needed on treatments and long-term safety.

Keratin proteins are crucial for healthy skin, but mutations can cause skin disorders with no effective treatments yet.

Kennedy's disease leads to muscle weakness and sensory issues, has no cure but manageable symptoms, and future treatments look promising.

There is no clear recommendation for using selenium in cancer patients; it may be beneficial to correct low selenium levels before treatment.

Defective mitochondrial DNA replication causes aging symptoms and increased oxidative damage in mice.

Wound dressing absorbs fluid, regenerates hair follicles, and heals skin burns.

Eruptive vellus hair cysts are a cosmetic skin condition, more common in young adults, with few effective treatments.