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

Alopecia areata involves immune activation in the scalp, suggesting treatments targeting TH1, TH2, and IL-23 pathways.

Hair follicle stem cells are key for hair and skin regeneration, can be reprogrammed, and have potential therapeutic uses, but also carry a risk of cancer.

Latanoprost can make eyelashes longer, thicker, and darker.

Telocytes might help with skin repair and regeneration.

Stress-related substance P may lead to hair loss and negatively affect hair growth.

Estrogens significantly influence hair growth by interacting with receptors in hair follicles and may help regulate the hair growth cycle.

Dermatoscopy and videodermatoscopy are useful for diagnosing and monitoring various skin, hair, and nail conditions.

Memory T cells in the skin balance staying put and moving into the blood, clustering around hair follicles, and increasing in number after infection.

Minoxidil treats hair loss, promotes growth, has side effects, and has recent patents.

Alopecia areata causes hair loss, has no cure, and various treatments exist.

The document concludes that more research is needed to better understand and treat primary cicatricial alopecias, and suggests a possible reclassification based on molecular pathways.

Laser hair removal effectiveness depends on targeting hair structures without harming the skin, and improvements require more research and expert collaboration.

Hair follicles may soon be used more for targeted and systemic drug delivery.

Liposomes improve drug delivery and reduce skin irritation in dermatology.

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

Oxidative stress contributes to hair graying and loss as we age.

The conclusion is that FFA and LPP have similar scalp biopsy features, making them hard to distinguish histologically, and FFA may be a specific kind of scarring hair loss.

Psoriasis skin changes are complex and might need several biopsies for a clear diagnosis.

The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.

Pure carbon nanotubes are safe for mice, but impure ones cause immune issues and hair loss.

Restoring hair bulb immune privilege is crucial for managing alopecia areata.

One minoxidil-sensitive potassium channel exists in human hair follicles.

Nerves and chemicals in the body can affect hair growth and loss.

Male hormones and their receptors play a key role in hair loss and skin health, with potential new treatments being explored.

Hair ages due to genetics and environmental factors, leading to graying and thinning, with treatments available for some conditions.

Hair follicles are hormone-sensitive and involved in growth and other functions, with potential for new treatments, but more research is needed.

There are many treatments for permanent hair loss disorders, but their effectiveness varies and there's no clear best option.

Trichoscopy is a useful, non-invasive way to diagnose different types of hair loss.

Lichen planus pigmentosus causes dark skin patches and is treated by avoiding triggers and using anti-inflammatory medications.