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Androgens can both promote and prevent hair growth due to differences in gene expression in hair follicles.

Vitamin D receptor is crucial for starting hair growth after birth.

Two-photon microscopy helps observe hair follicle stem cell behaviors in mice.

Minoxidil helps grow longer, thicker hair in bald scalps of stumptailed macaques, and early treatment is more effective.

Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.

The document explains hair growth and shedding, factors affecting it, and methods to evaluate hair loss, emphasizing the importance of skin biopsy for diagnosis.

Assessing newborn scalp hair can reveal important health information.

Some natural compounds can protect fish ear cells from damage by certain antibiotics without affecting the antibiotics' ability to fight infections.

Hair problems can be caused by genetics or the environment, and treatment should focus on the cause and reducing hair damage.

Heparan sulfate is important for hair growth, preventing new hair formation in mature skin, and controlling oil gland development.

MicroRNAs play a crucial role in skin and hair health, affecting everything from growth to aging, and could potentially be used in treating skin diseases.

An improved scalp reduction technique reduces the need for hair grafts and has minimal complications.

Growth factors and microneedle therapy increase hair density in women with hair loss.

Thai people's hair density decreases with age and varies by scalp area, but hair thickness stays the same regardless of age or scalp area.

α-type filaments in guinea pig hair follicles have unique structural features.

Genetic discoveries are key for understanding, diagnosing, and treating inherited hair and nail disorders.

Ultraviolet rays damage hair, smoking may cause hair loss, and good nutrition is important for hair health, but genetics mainly decide hair thickness.

Propionibacterium acnes might be linked to hair casts and possibly alopecia.

Hair in mammals likely evolved from glandular structures, not scales.

Androgens can cause hair growth in some areas but hair loss on the scalp.

Southern Chinese women with female pattern hair loss have less, thinner hair and smaller hair follicles.

Liaoning Cashmere goat hair follicles show synchronized growth patterns with lowest activity in May.

Hair growth is influenced by hormones and goes through different phases; androgens can both promote and inhibit hair growth depending on the body area.

Androgens can both increase body hair and cause scalp hair loss.

The document concludes that hair biology is complex and there are still unanswered questions about hair loss and follicle changes.

The Hairless gene is crucial for hair cell development, affecting whether skin cells become hair or skin and oil gland cells.

A woman's hair changed to a dry, tangled texture that's hard to comb after treatment with spironolactone, suggesting the medication might cause such hair changes.

Human hair follicle cells can be turned into neural stem cell-like cells, which might help treat brain diseases.

The girl with autoimmune hair loss might regrow hair within a year, and treatments can help but not prevent recurrence; dermatologist referral and corticosteroids are recommended.

Thread monofilament and minoxidil together increase hair growth in female androgenetic alopecia.