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In this study, experimentally induced weight loss in merino sheep led to a decrease in wool fiber diameter and increased expression of certain high sulfur and glycine-tyrosine proteins, potentially impacting wool quality and industry preferences.

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.

This study identified two evolutionarily conserved ultra-high-sulfur keratin proteins in human and sheep hair follicles, which are specifically expressed in the hair cuticle during the late stages of fiber development.

This research explores the use of serial block-face scanning electron microscopy to model the complex architecture of sheep wool fibres, focusing on the role and distribution of para- and ortho-cortical cells in determining wool curliness, though the mechanism remains unclear.

This study found that the X-ray patterns of stretched mammalian hair (β-keratin) are similar to those of natural silk (fibrion), suggesting a similar elastic mechanism involving reversible intra-molecular transformations.

This study proposed a network model for the cross-linked structure of keratin-associated proteins in hair and wool fibers, suggesting notable differences between the two, potentially affecting hair fiber elasticity.

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 found that manipulating prolactin levels in New Zealand Wiltshire sheep induces wool follicle growth cycles, revealing gene expression changes that suggest roles for specific genes in follicle function.

In this study, researchers analyzed the skin proteome of Alpine Merino sheep to identify proteins and pathways related to wool fiber diameter, finding that cyclic adenosine monophosphate and certain signaling pathways may play a role in this trait.

This biographical abstract highlights George Rogers' pioneering contributions to the understanding of keratin molecular structure and keratinisation biochemistry, including the application of electron microscopy to hair ultrastructure and the discovery of enzymes and gene transcription processes relevant to keratin proteins.

This study found that in mice, wool structure deteriorates as a malignant tumor develops, suggesting potential uses in cancer diagnostics.

This study characterized the Hoxc-13 gene from sheep wool follicles, noting its potential autoregulatory role and potential influence on skin function beyond hair keratin regulation.

This review discusses the structural knowledge of wool keratin proteins and genes, reports no new findings, and highlights promising directions such as keratin gene regulation.

This study found that the tetrazolium salt INT is the most effective for revealing dehydrogenase activity and certain histological structures in sheep and other mammals' skin.

This article reports electron microscope studies on the structure of hair and wool, but it does not present new clinical findings.

This study demonstrates that polarized second harmonic generation imaging effectively monitors wool fiber stretching, revealing significant structural changes in keratin alignment that improve textile performance.

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 observed that using an environmentally friendly bovine milk permeate effectively and cleanly removes wool from sheepskins without harming the skin, and results in smoother leather compared to traditional chemical methods.

This study identified two key pentapeptide quasi-repeats in human keratin-associated proteins, which are similar to motifs found in sheep wool.

This study suggests that variations in α-keratin proteins influence the structure and characteristics of wool fibers, indicating that keratin genes could serve as useful markers for identifying different wool traits.

This study examined hair curvature in Japanese women, finding that 47% have curved hair, and identified structural differences in hair fiber, which resemble those in wool fibers.

This study provides insight into the specific disulfide bond interactions between keratins and keratin associated proteins, suggesting non-random cysteine interactions crucial for stabilizing hair fiber structure.

The hair follicle structure is more complex than thought, with new findings on protein formation.

This review explains the genetic diversity of sheep wool keratin-associated protein genes and explores how this variation might be leveraged for selective breeding to enhance wool fiber traits.

This study found that variation in the ovine KRTAP27-1 gene may influence wool growth, with certain genotypes associated with higher mean staple length and greasy fleece weight in sheep.

This study found that zinc is primarily located in the tails of mature rat sperm, associated with -S-S-bonded structures, and suggests a possible similarity in zinc interactions between sperm keratin and hair proteins.

This study observed that genetic variation in the ovine KRTAP22-1 gene is linked to increased wool yield and decreased fiber curvature in sheep, indicating its potential use in breeding programs.

In this study, a porous keratin hydrogel derived from wool hair demonstrated strong mechanical properties and supported the growth of various animal cells, indicating potential as a scaffold in tissue engineering.

This study reports that expressed mouse type Ia and type IIa trichocyte keratins were successfully assembled into intermediate filaments in vitro, while also suggesting that disulfide bond cross linking enhances their stability.

Gene expression in wool follicles changes with growth cycles, offering insights into wool and human hair growth.