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Barn owls with smaller black spots have higher testosterone levels, which might be due to genetic effects on hormone regulation rather than hormone effects on coloration.

Trypsin slows hair growth and affects color by causing cell death in hair follicles.

Melanocyte precursors in human fetal skin follow a specific migration pattern and some remain in the skin's deeper layers.

UVB radiation changes the levels of certain microRNAs in skin cells, which may affect cell survival and hair growth.

Canine pemphigus foliaceus involves significant immune activity and shares similarities with human pemphigus.

Scalp melanoma is more common and easier to diagnose early in people with androgenetic alopecia due to sun damage.

Radiation mainly affects keratinocyte stem cells, not melanocyte stem cells, causing hair to gray.

The Agouti gene influences pigmentation and may have a developmental role in deer mice.

BLMP-1 is important for regular molting and gene expression cycles in worms.

MCHR2 gene duplications may be linked to alopecia areata.

Human scalp hair follicles can produce and respond to several hormones, affecting hair growth and pigmentation.

Growth factors can either promote or inhibit hair follicle cell growth and collagen breakdown.

Lack of a certain enzyme causes hair to grey early by damaging stem cells, but an antioxidant can help prevent this.

Melatonin may help with sleep issues, depression, and cancer, but more research is needed.

Melatonin stimulates the skin components of ram's scrotum during their non-breeding season.

KIT's role in skin cells is not entirely independent, as other cells can influence its function.

Several treatments are effective for pigmentary disorders like vitiligo and melasma.

The research found that certain factors in hair follicle cells control hair growth and development, and these could be used to create new treatments for hair loss.

Transplanting melanocyte stem cells from hair follicles can effectively treat vitiligo.

Hair repigmentation can indicate malignancy and should be investigated.

Zebrafish help understand genetic causes of skin pigment disorders like albinism.

Melasma skin has more melanin and signs of aging, with strong CK10 expression linked to cell differentiation and aging.

Melatonin affects specific gene patterns and biological processes in goat hair growth.

Scientists made stem cells that can grow hair by adding three specific factors to them.

Topical melatonin may reduce skin aging by inhibiting certain cellular pathways.

Oral zinc sulphate reduces dark hair color in mice.

Desmoglein 4 is controlled by specific proteins that affect hair growth.

The new treatment was safe and may effectively treat male pattern hair loss.

Chemotherapy reduces splenic melanin in mice.

Scalp melanoma is often diagnosed late in people with hair loss, leading to worse outcomes.