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This study found that treatment with mercuric acetate modifies the elastic properties of Lincoln wool fibers more rapidly than human hair, explaining the enhanced unshrinkable quality of wool under certain conditions.

This case report presents a patient with woolly hair and associated symptoms, including keratosis pilaris, nail dystrophy, increased interdental spaces, and recurrent bullous impetigo, observing a combination not previously reported.

This study observed that some patients with homozygous c.736T>A mutation in LIPH may have mild hypotrichosis with long hairs in adulthood.

This study investigated multiple alkaline oxidative dehairing systems and found a consistent reaction mechanism for disulfide cleavage across systems, enhancing hair solubilization by enabling structural swelling and water uptake.

This study found that a serum-free culture system supported hair growth from follicles responsive to calcium, glucose, and amino acids, with insulin enhancing the growth, while other factors had no effect.

This study identified a missense mutation in the keratin 71 gene as the cause of autosomal dominant woolly hair/hypotrichosis in a Japanese family, marking the first human mutation in KRT71 linked to a hair disorder.

A specific mutation in PA-PLA1α causes abnormal hair growth.

This study used single-cell RNA sequencing to map the cellular composition of sheep hair follicles, revealing differentiation pathways and potential molecular mechanisms for wool curvature, which may inform sheep breeding.

This study found that moisture sorption properties of wool and hair fibers from various animals were similar, despite different structural features, with sorbed water being more ordered than liquid water.

This study identified key genes and pathways related to wool follicle development in coarse wool lambs, suggesting epigenetic factors may influence wool sheep domestication and breeding.

This study observed that amino acid uptake into wool follicles varies significantly, with cysteine showing the highest uptake rate, suggesting specialized transport systems that may influence wool growth.

This study found that infused mouse epidermal growth factor induced wool follicle involution through a quasi-physiological process similar to catagen and a separate pathological action, resulting in fleece 'break' or shedding.

This study found that flumethasone administration in Merino wethers led to variations in wool shedding and initial reductions in wool growth, with full recovery generally observed within 60 days post-treatment.

This study found that CMAD wool keratin may protect human hair from damage during repeated bleaching and permanent waving treatments.

This study found that sheep wool follicles actively oxidize acetate and glucose, suggesting the involvement of the TCA cycle for compound synthesis and the potential role of the pentose phosphate pathway in ribose production for RNA and DNA.

Merino wool fibers change shape with moisture, while human hair shape stays the same.

This study identified a new ovine KRTAP21-1 gene variant in sheep, with wool yield affected by the variant, suggesting its potential as a genetic marker for improving wool production.

This study found that ectopic expression of FGF5s in transgenic Chinese Merino sheep increased wool length and greasy fleece weight compared to non-transgenic controls.

This study found that manipulating maternal cortisol levels during pregnancy altered Merino sheep wool characteristics, increasing fibre length and reducing crimp frequency in the offspring.

This study found that melatonin treatment significantly increased wool production and hair follicle activity in German angora rabbits, with larger effects seen in defleeced animals and those treated in July.

This study found that wool fiber surfaces damaged in processing tended to have cellular debris adhering to them, while undamaged surfaces did not show this interaction.

A man with Woolly Hair Syndrome had very curly, fragile hair, and doctors used a special scalp examination to diagnose him without invasive tests.

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

In this study, microarray and proteomic analyses indicated that genes involved in immune response, receptor binding, and growth factor activity might influence wool fibre diameter in sheep.

This study identified the presence of recognizable organelles, such as lysosomes and mitochondria, in both the keratinized fiber and the hardened inner root sheath of the Romney wool follicle.

This case study reports on an 11-year-old boy with woolly hair nevus, featuring twisted hair shafts and an abnormal hair cuticle, alongside epidermal nevi on his face and back.

In this study, 467 genes with differential expression between fine-wool and coarse-wool sheep, particularly those related to lipid metabolism, were identified as potentially influencing wool fibre diameter.

Only two of the four keratin genes are expressed in wool fibers.

This study found that concurrent administration of cycloleucine with ethionine prevented the weakening of wool fibers in sheep, whereas reduced glutathione did not have the same effect.

This study examined vicuña skin and hair follicle structures, finding a high density of secondary hairs in fleece areas compared to belly and legs, and identified various types of cutaneous glands potentially important for chemical communication.