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Ziehl-Neelsen's stain helps identify different parts of hair in sheep and goats.

Scalp cooling and low-power light therapy show promise in reducing chemotherapy-induced hair loss but need more research.

Folliculitis decalvans mainly affects middle-aged African American men and is treated with antibiotics.

Testing basal 17-HP levels is a good way to screen for nonclassic adrenal hyperplasia in women with high androgen levels.

Trichoscopy is a useful tool for diagnosing different hair and scalp diseases by their unique visual features.

The new "differential stripping" method effectively measures how much substance gets into hair follicles.

Some people with pattern hair loss may also have scalp inflammation and scarring similar to lichen planopilaris.

Mouse hair follicle cells briefly grow during the early hair growth phase, showing that these cells are important for starting the hair cycle.

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.

Particles around 100 nm can penetrate and stay in hair follicles without passing through healthy skin, making them safe for use in topical products and useful for targeted drug delivery.

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

The conclusion is that an algorithm using trichoscopy helps diagnose different types of hair loss but may need updates and a biopsy if results are unclear.

Drosha and Dicer are essential for hair follicle health and preventing DNA damage in skin cells.

Caffeine penetrates human skin in lab tests similarly to real-life conditions, but actual skin use is still essential for accurate results.

The study found that Keratosis Pilaris Atrophicans is a genetic skin condition that starts in childhood, involves inflammation and scarring, and current treatments are only somewhat effective.

Chitosan nanoparticles improve minoxidil delivery to hair follicles for better alopecia treatment.

Treatment with plasma rich in growth factors improved hair density and thickness for hair loss patients.

Hair greying is caused by oxidative stress damaging hair follicles and melanocytes.

Squalene-based carriers improve delivery of a treatment to hair follicles for alopecia areata.

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

Using both vertical and transverse sections gives a better diagnosis of alopecia than using one method alone.

Most patients with chronic hair shedding did not progress to permanent hair loss, and one showed improvement with treatment.

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

Scarring alopecia affects different hair follicle stem cells than nonscarring alopecia, and the infundibular region could be a new treatment target.

Pitx2 helps outer root sheath cells differentiate but can't start hair growth on its own.

Hair follicles offer promising targets for delivering drugs to treat hair and skin conditions.

Bcl-2 overexpression protects against UVB damage but worsens hair loss from chemotherapy.

Scientists found cells in hair that are key for growth and color.

Trichoscopy is a non-invasive way to diagnose hair and scalp problems without needing hair samples.

Androgen hormones cause hair follicle scarring in hair loss, and finasteride helps reduce it.