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Yak belly hair has higher porosity and is less stiff than human hair, making it absorb dye better but less suitable as a direct substitute for hair dyeing.

Human hair contains diverse proteins, including keratins and histones, which could help assess hair health and aging.

Acne inversa is an epithelial-driven disease where inflammation is caused by cyst rupture, and treatments should focus on preventing tendril growth for better results.

Dyeing hair can help target and destroy hair follicles selectively.

Pangolins have lost some skin-related genes, but kept others, leading to their unique scales and skin features.

Hair loss in men is common, treatable, but not curable.

Different populations have distinct hair structures related to their ancestry.

Hair properties are interconnected; a comprehensive, cross-disciplinary approach is essential for understanding hair behavior.

The document concludes that the human keratin gene cluster is complex, with a need for updated naming to reflect over 50 functional genes important for hair and skin biology.

UVB radiation changes the chemical makeup and dries out human hair but doesn't alter its appearance or texture.

Liposomal systems show promise for delivering drugs through the skin but face challenges like high costs and stability issues.

Minoxidil works in liver and outer hair root sheath for hair growth.

Male pattern baldness involves hormone-related hair thinning, shorter hair, and inflammation.

A new system for classifying curly hair types using precise measurements can improve hair care products and cultural inclusion.

New methods to classify curly hair types were developed based on shape and strength.

Mouflon rams mature gradually with changes in body, horns, and hormones linked to age and seasons, reaching full sexual maturity well after puberty.

Keratin from hair and wool is used in medical materials for healing and drug delivery.

Women with PCOS have higher oxidative stress and hormone imbalances, suggesting managing oxidative stress could help.

Hair proteins in preschool children and their mothers could indicate developmental changes and health status.

Curved hair can develop when hair cells merge abnormally during growth.

Human hair is made up of different keratins, some strong and some weak, with specific types appearing at various stages of hair growth.

Different fields of expertise must work together to better understand hair growth and create effective hair loss treatments.

The document concludes that more research is needed to reduce frequent hospital visits, addiction medicine education improves with specific training, early breast cancer surgery findings are emerging, nipple smears are not very accurate, surgery for older melanoma patients doesn't extend life, a genetic condition in infants can often be treated with one drug, doctors are inconsistent with blood clot medication, a certain gene may protect against cell damage, muscle gene overexpression affects many other genes, and some mitochondrial genes are less active in mice with tumors.

New treatments for alopecia areata show promise, but standardized guidelines are needed.

Hair keratins evolved from ancient proteins, diversifying through gene changes, crucial for forming claws and later hair in mammals.

Sheep and goat hair fibers are complex due to keratin-associated proteins, which are important for fiber properties and growth.

Human hair loss may have evolved to help increase brain size.

Nanomaterials can improve hair care products and treatments, including hair loss and alopecia, by enhancing stability and safety, and allowing controlled release of compounds, but their safety in cosmetics needs more understanding.

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.

Human hair can almost fully recover its structure within about 1,000 minutes after being stretched.