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Researchers developed a method to identify and measure different animal hair fibers in textiles, successfully distinguishing materials like cashmere from cheaper fibers.

The document concludes that hair follicles have a complex environment and our understanding of it is growing, but there are limitations when applying animal study findings to humans.

The document describes how hair and plants are symbolically linked in Indo-European traditions, leading to practices like burying hair to promote plant growth and using plants to treat baldness.

Human hair was used to make biodegradable plastic films that could be useful for packaging and disposable products.

Wool follicles are complex, involving interactions between different cell types and structures.

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

Disabling the FGF5 gene in sheep leads to longer wool.

Certain RNA molecules are important for the development of wool follicles in sheep.

Certain genetic variations in the FST gene are linked to better wool quality in Chinese Merino sheep.

Wool follicle cells are more complex than previously thought.

Wool follicles can grow in a lab with the right nutrients and conditions.

Certain gene mutations are linked to wool quality in sheep and could help in breeding for better wool.

Fine wool sheep have more genes for wool quality, while coarse wool sheep have more for skin and muscle traits.

Merino sheep have fewer wool follicles at birth than before birth.

Wool follicles grew fibres for 8-10 days in a serum-free culture, influenced by calcium, glucose, amino acids, and insulin.

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

Sheep wool follicles absorb different amino acids at various rates and locations, which could affect wool growth based on diet and genetics.

Flumethasone causes wool shedding in Merino wethers, with recovery in about 60 days.

Sheep wool follicles can metabolize both glucose and acetate using different pathways important for wool growth.

Overexpression of FGF5s makes Chinese Merino sheep grow longer and heavier wool.

Melatonin treatment increases wool production and improves fiber quality in angora rabbits.

Cellular debris sticks to damaged wool fibers and affects wool cleanliness.

Chemical treatments can change the scale heights of wool and cashmere fibers, affecting their identification.

Researchers identified genes and proteins that may influence wool thickness in sheep.

Keratinized wool cells still have some organelles like lysosomes and mitochondria.

Certain amino acid analogues can inhibit wool and hair growth and affect fiber strength.

Vicuña wool's quality is due to a high density of fine secondary hair follicles, and their skin glands may be used for communication.

Spermidine injections increased wool growth rate in lambs without changing fibre thickness.

Ethionine significantly inhibits wool growth in sheep but not hair growth in mice or rats.