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A new DSG4 gene mutation causes hair defects in a young girl.

The balance between cell renewal and differentiation controls the growth of cancerous cells in mouse skin.

Dark hair with a red beard likely evolved for camouflage, not attraction.

DHT causes thicker and less elastic skin, linked to hair loss.

Finasteride causes lasting fertility decrease in rats.

Different monkey species in a lab showed varying levels of hair loss due to factors like type, sex, age, season, and living conditions.

Men with isolated hypogonadotropic hypogonadism have partial steroid deficiencies, while those with panhypopituitarism have severe deficiencies.

Genetic differences within ethnic groups may affect prostate cancer treatment effectiveness.

PSENEN gene mutations can cause both Dowling-Degos disease and acne inversa.

SHH protein helps nerve regeneration in hypertensive rats.

Trichoscopy effectively distinguishes between severe and mild male pattern hair loss.

Injecting α-MSH made mice's hair turn black.

Different Hairless isoforms affect Vitamin D receptor activity in hair regulation, with one repressing and the other stimulating it.

Antler velvet hair and body hair of red deer have different structures that help with protection and insulation.

Different rat and mouse strains respond differently to stress and alcohol, which may help us understand similar human mechanisms.

Male hormones control a specific gene in hamster skin, with different hormones having varying effects.

Finasteride effectively blocks rat enzymes, but with varying methods and strength.

Blocking androgens at birth reduces sexual motivation in male rats.

Type I and Type II keratin chains can form heterodimers despite sequence differences.

Prenatal antiandrogen treatment altered hormone levels in adult spotted hyenas, affecting males and females differently.

Sex hormones may affect COVID-19 severity, with men often faring worse, and targeting related pathways could offer treatment options.

All major hair defects involve cuticle abnormalities.

Most hair follicle stem cells do not protect their DNA by dividing it unevenly.

The study found clear differences in lesion distribution and microscopic features among trichostasis spinulosa, keratosis pilaris, and eruptive vellus hair cysts.

Snakes and worm lizards lost claw proteins due to similar evolutionary changes.

The exact molecular mechanisms of sebaceous gland function are still unclear.

Fine wool sheep have more genes for wool quality, while coarse wool sheep have more for skin and muscle traits.

Familial sexual precocity in girls may be more common than previously thought.

The main enzyme found in pubic skin that could be targeted to treat excessive hair growth is 5 alpha-R2.