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Trichoscopy and pathological examination both have unique benefits and cannot completely replace each other in evaluating hair.

Deoxycholic acid is FDA-approved for reducing submental fat, but its mechanisms are not fully understood.

Hair loss in Androgenetic Alopecia is caused by genetics, aging, and lifestyle, leading to hair follicle shrinkage and related health risks.

The study suggests that the arrector pili muscle is important for hair health and its damage might contribute to hair loss.

Excess vitamin A changes skin and hair follicle development and affects polysaccharide distribution.

Scaffoldin helps form hard skin structures in chicken embryos.

A new method using visual aids to diagnose hair diseases was effective after brief training.

Shrunken heads retain some facial features and hair characteristics, allowing for limited individual identification.

A patient with total hair loss developed vitiligo after using a treatment called DCP.

As sheep age, their hair fibers and follicles grow larger and more organized, with no significant differences between males and females.

The fly larvae infestation caused severe skin damage and health issues in Kenyan dogs.

Lasers are FDA-approved for permanent hair reduction, not removal, and more research is needed to improve treatments.

Finasteride's effectiveness on the frontal hair loss area is not well-studied or confirmed.

Pig skin is a good substitute for human skin to measure drug absorption, but differences in skin structure and enzymes across species must be considered.

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

New treatments for male hypogonadism are effective and should be personalized.

5-alpha reductase inhibitors can cause sexual side effects like erectile dysfunction and reduced sexual desire, sometimes lasting after stopping the drug.

Different types of facial fat affect aging and treatment outcomes; more research is needed to enhance anti-aging procedures.

Scalp skin barrier affects hair loss; personalized treatments needed.

Finasteride slightly better long-term, minoxidil faster initial results, but stopping minoxidil may cause hair loss.

The arrector pili muscle might play a role in hair loss and needs more research to understand its impact.

The document concludes that managing hirsutism involves identifying the cause, using a scoring system for severity, combining cosmetic and medical treatments, encouraging weight loss, and providing psychological support, while noting the need for more research on drug treatments.

Wounds heal without scarring in early development but later result in scars, and studying Wnt signaling could help control scarring.

Minoxidil didn't increase scalp blood flow for hair growth, but hexyl nicotinate did.

The conclusion is that normal scalp hair counts for Taiwanese people were established, showing age-related differences but not sex or scalp location differences.

Stress can worsen skin conditions and affect mental health, so doctors should include stress management in skin treatment.

Hair and nails are similar keratin structures with different shapes and growth, affected by the same diseases and environmental factors.

Alopecia areata involves specific T-cells, unlike androgenetic alopecia.

Reflectance confocal microscopy can help tell apart scarring from non-scarring hair loss.

Use good lighting, consistent positioning, and proper camera settings for effective hair disorder photos.