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Different hair types in mammals are linked to variations in specific protein genes, with changes influenced by their living environments.

Actin filaments help root hairs grow faster and longer under low potassium stress.

Children with marasmus have more resting hair follicles and thinner, less pigmented hair, showing long-term malnutrition.

Scalp hair grows at 0.37 mm/day, forearm hair at 0.18 mm/day, and thigh hair at 0.30 mm/day, with no significant differences found in people with certain hair conditions.

High energy boosts root hair growth in plants, while low energy stops it.

Understanding normal hair growth and loss in children is key to diagnosing and treating hair disorders.

Androgens can cause hair growth in some areas and hair loss on the scalp.

Women with certain types of hair loss may have low iron levels, and iron supplements could help.

The document concludes that treating androgen excess needs patience, managing expectations is important, and many drugs used are not officially approved, suggesting cosmetic options for mild cases.

Foxp3 is crucial for regulatory T cell function, and targeting these cells may help treat immune disorders.

Layered suture closure for hair transplant donor sites results in smaller scars and easier future harvesting but takes more time and may temporarily increase hair shedding.

Some natural compounds can protect fish ear cells from damage by certain antibiotics without affecting the antibiotics' ability to fight infections.

Keratin-associated proteins have ancient origins and were used for different purposes before being adapted for hair in mammals.

Human hair growth involves active, resting, and intermediate phases, and examining plucked hairs can teach students about hair biology and diseases.

Root hairs in maize grow mainly in air-filled pores, limiting their role in nutrient uptake and plant anchorage.

Different proteins are linked to the varying thickness of sheep and goat hair types.

The study identified key genes that regulate the growth cycle of cashmere in goats, which could help improve breeding strategies.

The KRTAP11-1 gene promoter is crucial for specific expression in sheep wool cortex.

Bald thigh syndrome in sighthounds is caused by structural defects in hair shafts due to downregulated genes and proteins.

Some hair protein genes evolved early and were adapted for use in hair follicles.

Afro-textured hair needs personalized care due to its unique genetic traits.

Genes related to keratin, skin cell differentiation, and immune functions are key in hedgehog skin and spine development.

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

Certain genes related to sulfur metabolism are more active during the growth phase of Cashmere goat wool, and melatonin might help this process.

The Spanish version of the Hair Specific Skindex-29 is a reliable tool for measuring quality of life in Spanish-speaking women with hair loss.

The Spanish Hair-Specific Skindex-29 questionnaire effectively measures the quality of life impact of hair loss in Spanish-speaking women.

Portuguese WAA-QoL questionnaire validated; FPHL severity, schooling, and phototypes affect patients' quality of life.

The Spanish version of the WAA-QoL questionnaire is reliable and valid for assessing quality of life in women with hair loss.

Whale genes show changes that help them live in water, like less hair and better flippers.

Redheaded people have higher levels of a vitamin D precursor, suggesting red hair may be an adaptation for better vitamin D synthesis in areas with less sunlight.