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Researchers found genes for cysteine-rich proteins that form the protective layer of hair in humans and sheep.

Keratins are crucial for hair strength, and mutations in certain keratin genes cause hair disorders.

The study found that pili bifurcati causes hair to intermittently split into two branches, each with its own outer layer.

Two new gene mutations cause a rare hair disorder.

Circle hairs are harmless, spiral-shaped body hairs that don't need medical treatment.

The technique showed that human hair has two main parts, with 68% being rigid and the rest flexible, and water swelling affects its structure.

Trichothiodystrophy hair is structurally abnormal with protein and organization issues.

Trichohyalin-like proteins are essential for the development of skin structures like hair, nails, and feathers.

Arabidopsis collet hairs are good for studying nuclear movement and DNA content increase during growth.

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

Ear creases might indicate heart disease risk, needing more research.

Hair follicles in mutant mice self-organize into ordered patterns within a week.

Recombinant keratins can form useful structures for medical applications, overcoming natural keratin limitations.

Keratinous tissues have multiple structural layers, including ordered keratin and lipid granules.

Hair structural proteins are synthesized sequentially in specific cells, offering a new way to study hair proteins and defects.

Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.

Specific cross-linkages help make hair proteins stable and strong.

Transamidases help form strong crosslinks in hair proteins, crucial for hair strength.

Pili torti hair is fragile due to loose keratin filaments and weak disulfide bonds.

Human hair keratin fibers have a detailed nano-scale structure that changes with different conditions.

Trichohyalin is modified by enzymes to form strong structures in hair cells.