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Most people with alopecia areata have nail changes, which are common but don't greatly affect their quality of life.

Hair shaft dysplasias are abnormal hair conditions that can be inherited or acquired and may signal other health issues, with limited treatment options available.

The HOXC13 gene affects different hair proteins in cashmere goats in varied ways and is controlled by a feedback loop and other factors.

Animal models are crucial for learning about hair loss and finding treatments.

Scalp biopsies from dermatomyositis patients show chronic hair loss without scarring, with mucin and blood vessel changes being very common.

Light scatters differently from elliptical hair fibers than from circular ones, and a new model better predicts this behavior, especially for shiny highlights.

Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.

The study found that hair fragility in Pili annulati may be caused by cavities and damage within the hair shafts.

Understanding hair biology is key to developing better treatments for hair and scalp issues.

Loose Anagen Hair syndrome occurs in dark-skinned children and often improves on its own.

Environmental and cosmetic factors, including heat, chemicals, and sun exposure, can cause hair loss and damage.

The N gene affects the protein makeup of mouse hair.

Rac1 is essential for proper hair structure and color.

A Turkish family with sparse hair and eyebrow loss has a mutation in the U2HR gene linked to Marie Unna hereditary hypotrichosis.

Outside factors like grooming, chemicals, and the environment can damage hair and cause disorders.

Shrunken heads retain some facial features and hair characteristics, allowing for limited individual identification.

Scientists developed a new method to deliver alopecia treatment directly to hair follicles, which could be a promising treatment for hair loss and other hair diseases.

PGF_2α receptors in human eyelids are found in specific parts of hair follicles, explaining eyelash changes with glaucoma treatment.

Understanding hair follicle structure is key for treating hair disorders and could help develop new treatments.

Wool and hair fibers absorb moisture similarly due to their keratin structure, with the amount of non-crystalline areas affecting the moisture uptake.

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.

Human hair varies widely and should be classified by curl type rather than race.

Stem cells rearrangement regenerates functional hair follicles, potentially treating hair loss.

CD99 is highly present in certain skin cells and could help treat skin conditions.

Keratin 33A is a key protein in goat winter coats, especially in high-producing breeds.

Scientists made antibodies to tell cashmere and wool apart, which could improve how we identify animal fibers.

Sebaceous glands are involved in various skin disorders, some treatable with medications like finasteride and minoxidil.

Neural networks can effectively predict hair loss.

Most hair loss in children is caused by a few common conditions and is easy to diagnose, but rare types require careful evaluation.

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