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Cornification evolved from keratinization in vertebrates, with differences between mammals and sauropsids.

Human hair proteins vary by individual, body site, and ethnicity, useful for forensics.

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

Aging causes changes in hair follicles, leading to weaker hair growth.

Bleaching hair causes severe structural and chemical damage, including protein loss and oxidation.

Sheep have a unique gene, KAP8-2, that humans don't have, which may affect wool properties.

Pmg-1 and Pmg-2 are new genes important for skin and mammary gland development.

Inhibiting AP1 in mice skin causes structural changes and weakens the skin barrier.

Keratin proteins are crucial for hair growth and structure.

The transition from growth to regression in Cashmere goat hair follicles involves changes in expression of genes related to keratin and cell differentiation.

Disulfide bonds in keratin fibers break more easily under stress, especially when wet, affecting fiber strength.

Researchers found 617 genes that behave differently in cashmere goat hair follicles, which could help understand hair growth.

Hair protein composition is similar across different races and shapes.

Washing permed hair after using thioglycolic acid helps reform strong bonds, making hair stronger.

Hair protein analysis might help identify a person's ethnicity, sex, and age in forensics.

Goat skin has more keratin genes, while the mammary gland has more immunity-related genes.

Analyzing hair proteins can help identify new markers for hair health and aging.

Angora goat hair growth is influenced by gene expression, sex hormones, and breed differences.

The 2004 hair research meeting presented new findings on hair cell differentiation, genetic factors in hair loss, hair pigmentation, and potential targeted therapies.

Certain genes control the color of human hair by affecting pigment production.

Hair greying is linked to reduced ATM protein in hair cells, which protects against stress and damage.

Human hair follicle cells can be turned into neural stem cell-like cells, which might help treat brain diseases.

Hair and wool strength is affected by the number and type of bonds in their protein structures, with hair having more protein aggregates than wool.

The research found a new way to heal chronic skin ulcers by turning certain cells into skin tissue using specific factors.

Three characteristics of plasmacytoid dendritic cells help tell apart lupus-related hair loss from LPP.

Hair follicle growth and development are controlled by specific genes and molecular signals.

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

The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.

Alopecia areata is caused by immune system attacks on hair follicles, often triggered by viral infections.

Thyroid-stimulating hormone affects hair follicles but doesn't change hair growth or color.