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The Multi-Organ-Chip improves the growth and quality of skin and hair in the lab, potentially replacing animal testing.

Certain cells from hair follicles can create new hair and contribute to hair growth when implanted in mice.

Iron deficiency may be related to hair loss, but there's not enough evidence to recommend iron screening or supplements for all hair loss patients.

PGD2 stops hair growth and is higher in bald men with AGA.

Scientists have found a way to create hair follicles from skin cells of newborn mice, which can grow and cycle naturally when injected into adult mouse skin.

Lactate production is important for activating hair growth stem cells.

Minoxidil boosts growth factor in hair cells, potentially promoting hair growth.

Capsaicin, found in chili peppers, can slow down hair growth by affecting skin cells and hair follicles.

Scientists found a new, less invasive way to study body clocks using hair cells, which shows shift workers' body clocks don't match their lifestyles.

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.

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

Understanding hair follicle anatomy helps diagnose hair disorders.

K6hf is a unique protein found only in a specific layer of hair follicles.

Skin grafts on mice can cause an immune response leading to hair loss, useful for studying human hair loss conditions.

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

Human hair follicle organ culture is a useful model for hair research with potential for studying hair biology and testing treatments.

Over one-third of women experience hair loss, with female-pattern hair loss being most common, and treatments include minoxidil and possibly hair transplantation.

African Americans have less hair density than whites.

Dexamethasone speeds up hair loss in mice, while cyclosporin A slows it down.

Finasteride and minoxidil are effective for hair regrowth, while treatments for alopecia areata have varying success and continuous treatment is necessary.

Hair color production is closely linked to the active growth phase of hair in mice and may also influence hair growth itself.

The document concludes that assessing hair follicle damage due to cyclophosphamide in mice involves analyzing structural changes and suggests a scoring system for standardized evaluation.

Activating TRPV3 stops human hair growth.

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

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

Hair loss severity relates to increased miniaturization in female pattern hair loss.

Hair elemental analysis could be useful for health and exposure assessment but requires more standardization and research.

Grafted rodent and human cells can regenerate hair follicles, but efficiency decreases with age.

The p75 neurotrophin receptor is important for hair follicle regression by controlling cell death.

New methods improve how we test hair growth treatments, but challenges like slow hair changes and high costs remain.