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Human hair follicles can grow in a lab setting.

Rat hair follicles grow longer in vitro, but certain factors can inhibit this growth.

The 14-3-3σ gene is essential for preventing hair loss.

The southern elephant seal's skin layer helps waterproof the skin by being tightly connected to hair shafts.

GPRC5D is linked to the formation of hair, nails, and certain tongue areas.

Hair keratins are mainly on macrofibrils in the cortex and in the endocuticle in the cuticle.

Loose anagen hair syndrome is caused by structural abnormalities in the hair follicle's inner root sheath.

The girl's "dandruff" was actually harmless hair casts, not a hygiene issue.

Horse skin has a layered epidermis, a dermis with hair follicles, sweat and sebaceous glands, and is supplied by small arteries.

Hair and nails contain stable RNA, useful for personalized medicine and screening.

Trichilemmal keratinization is a unique process in hair follicles where the outer root sheath turns into keratin without a specific layer.

Hair shaft disorders often indicate genetic or systemic issues and are managed by minimizing damage.

Scientists found cells in hair that are key for growth and color.

Cysteine strengthens hair, and glutamine fuels hair growth.

A specific type of skin cell creates an opening for hair to grow out, and problems with this process can lead to skin conditions.

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.

Some congenital hair disorders improve with age and can be managed with treatments like minoxidil, retinoids, supplements, and gentle hair care, but there's no cure.

DNA can be quickly and effectively extracted from hair using laundry powder.

The document concludes that understanding hair structure is key to diagnosing hair abnormalities and recommends gentle hair care for management.

Msx2 and Foxn1 are both crucial for hair growth and health.

Human hair shafts inhibit Gram-positive bacteria growth but not Gram-negative bacteria.

The method can help diagnose and monitor diabetes by analyzing hair.

Degraded hair shafts resist contamination and can be easily cleaned.

Scientists created early-stage hairs from mouse cells that grew into normal, pigmented hair when implanted into other mice.

A mutation in the KRT71 gene causes a hair disorder by disrupting hair follicle structure and texture.

Understanding hair follicle anatomy helps diagnose hair disorders.

S100A3 protein is mainly found in specific parts of human hair cells.

Desmoglein 4 is controlled by specific proteins that affect hair growth.

The hair follicle bulge is an important area for adult stem cells involved in hair growth and repair, with potential for medical use needing more research.

Accurate clinical, histological, and genetic methods are key for understanding and treating hair disorders.