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The genes KRT25 and SP6 affect curly hair in horses, with KRT25 also causing hair loss. If both genes are mutated, the horse gets curly hair and hair loss. KRT25 can hide the effect of SP6.

Female goslings have darker feathers than males due to more melanin.

The research found specific genes and pathways that control fur development and color in young American minks.

Gene regulation could revolutionize hair color by altering pigmentation from within.

Some chemicals can permanently or temporarily remove color from skin and hair, which can be distressing and is not well-regulated in cosmetics.

Oral zinc sulphate reduces dark hair color in mice.

c-kit affects hair growth and color in alopecia areata and androgenetic alopecia.

Dermal papilla cells are key for hair growth and color, influencing hair type and size, and their interaction with stem cells could help treat hair loss and color disorders.

Turkish Van cats' genotypes don't affect traits like eye color or hair length.

Darker hair may lead to higher cortisol readings, suggesting a need to adjust for hair color in studies.

PPARβ/δ helps yaks adapt to high altitudes by regulating lipid metabolism in their coats.

A new mutation in the STING protein causes a range of symptoms and its severity may be affected by other genetic variations; treatment with a specific inhibitor showed improvement in one patient.

Sex hormones, especially estradiol, can change chicken feather shapes and colors.

Artificially inducing hair regrowth in mice can change the normal pattern and timing of hair growth, with minimal color differences between old and new fur.

Different genes affect hair length in yaks.

Hair follicle growth and fiber production in animals are influenced by chemical signals, proteins, pigmentation, genetics, and nutrients.

Hair is important for protection, social interaction, and temperature control, and is made of a growth cycle-influenced follicle and a complex shaft.

Tail switch hair is best for measuring cortisol in Holstein cows, with white hair and multiparous cows showing higher levels.

Organic trace minerals can temporarily improve cat hair health and reduce hair loss.

Curly hair is influenced by specific genetic variations.

Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.

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

Researchers found 15 new genetic links to skin traits in Japanese women.

Sphynx cats are hairless and Devon Rex cats have curly hair due to specific genetic mutations.

Hair diversity is influenced by complex genetics and environmental factors, requiring more research for practical solutions.

Hair health depends on various factors and hair loss can significantly affect a person's well-being; understanding hair biology is key for creating effective hair care treatments.

The document concludes that hair loss in cats is caused by various factors, including allergies, mites, infections, and hormonal issues, with treatments varying accordingly.

Mutations in the hairless gene in mice affect its expression and lead to a range of developmental issues in multiple tissues.

The document concludes with guidance for doctors on diagnosing and treating hirsutism effectively and safely.