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Keratins in Malayan pangolins vary by region, suggesting scales evolved from the tail towards the head.

Mummy hair's chemical composition may not accurately show ancient people's health due to environmental contamination.

Rodent spiny hair traits are due to genetic factors other than the Edar gene.

Friedreich's ataxia causes thin, weak hair with surface damage and cavities.

Recognizing the "bamboo hair defect" is crucial for diagnosing Netherton's syndrome.

Comma hairs are a specific sign of tinea capitis when viewed with videodermatoscopy.

Keratin sponges are as biocompatible as collagen, but keratin gels are slightly less so.

Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.

Chemical stressors damage hair structure but the skin's outer layer protects living cells.

A young athlete's fragile hair condition improved by cutting hair and using gentle shampoo.

Keratin injections can promote hair growth by affecting hair-forming cells and tissue development.

Monilethrix is not caused by a metabolic defect.

Some congenital hair disorders improve in childhood or with treatments like minoxidil and retinoids, while others like Netherton syndrome and trichothiodystrophy have a poor prognosis.

Transglutaminases help form strong hair by linking proteins, and can potentially alter hair properties.

A new gene mutation causes a rare type of hair loss.

Scientists developed a system to study human hair growth using skin cells, which could help understand hair development and improve skin substitutes for medical use.

Hair follicle cells and skin cells differ in keratinization and other features.

The Shindai method effectively extracts keratin from human hair, with potential uses in bioplastics and biofertilizers.

Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.

The study improved understanding of keratin fiber structure by showing consistent microfibril diameter but varying distances and electron density profiles.

Recognizing specific tissue types on telogen hair roots can improve DNA typing.

K6hf is found in specific parts of hair follicles, nails, and tongue, and is linked to hair growth and structure.

A new method effectively stains hair samples for study without losing hair sections.

The method shows how hair lipids form specific patterns and their roles in hair structure.

A 6-year-old girl had both monilethrix and trichorrhexis nodosa, causing brittle hair, with minimal improvement from treatment.