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This article reviews the impact of nutritional deficiencies on hair health, detailing how they can cause structural abnormalities, pigmentation changes, or hair loss; it presents no new clinical findings.

This study presents a DNA-analytical method that can reliably identify and differentiate cashmere, fine wool, yak, and camel hair fibers in both untreated and processed samples.

This study found that the growth of hair ice on dead wood requires the biological activity of a winter-active fungus, specifically Exidiopsis effusa, which shapes and stabilizes the ice structures.

In this study, melatonin administration enhanced various cellular and structural features of the scrotal skin in Soay rams, including increased thickness, cell count, and gland activity.

This study found that transplanted cultured epithelium from adult rat sole keratinocytes can respond to growth signals from dermal papillae and form follicular structures, especially with dermis support.

This study reports promising preliminary results for using monoclonal antibodies to identify cashmere fibers, highlighting observed immunological differences from wool keratins.

This study found that cashmere has a significantly smaller mean fiber diameter compared to sheep and goat wool, and identified key proteins that may influence this difference.

This study found that mink pelts with "singe" and "red hip" defects often exhibit split hair tips and altered cuticle structures, which may contribute to their undesired metallic sheen.

In this study, researchers used tissue clearing techniques on human skin and scar tissue for the first time to render them optically transparent, with the aim of revealing atypical structures and improving protocols for observing scar tissue changes.

This study found that two microRNAs, oar-miR-23b and oar-miR-133, inhibit the development of hair follicles in superfine wool sheep by targeting genes involved in key signaling pathways, suggesting their potential use as molecular markers for breeding fine wool sheep.

This study found that miR-23b and miR-133 significantly reduce mRNA and protein levels of specific target genes involved in Merino sheep hair follicle development, providing insight into molecular breeding for fine wool production.

This review focuses on coumarin analogs with potential antibreast cancer activities but reports no new clinical results, highlighting their mechanisms of action and structure-activity relationships.

This study found that Hoxc13 mutations in mice cause defects in hair, nail, and tongue structures, with the most noticeable issue being brittle hair leading to alopecia.

This study proposes a new method to selectively isolate keratin-associated proteins and keratin from human hair, suggesting that KAPs may support keratin fibers in hair structure.

This preliminary study found that poplar seed hair fibers have promising properties for use as environmentally friendly, lightweight insulation, with similar thermal resistance to wool and polyester despite being slightly less effective than down.

This study identified genetic variations in the DSG4 gene among sheep, revealing valuable markers for assessing their impact on wool traits.

This study observed that feeding ewes a water-soluble complex of fatty acids increased primary hair follicle bulb diameter and mitotic activity, suggesting a positive correlation with wool growth.

This study found that bioconjugating 16-methylheptadecanoic acid (16-MHA) to damaged hair can mimic the protective properties of 18-methyleicosanoic acid (18-MEA), restoring the hair's structural integrity and moisture homeostasis, even after washing.

This study identified candidate genes related to hair follicle development in Merino sheep, providing insights for improving sheep wool quality and potentially understanding human hair growth mechanisms.

This study identified differentially expressed mRNAs and lncRNAs in Hu sheep hair follicles, suggesting certain genes and pathways are involved in the development of wool curvature patterns.

This study found that the promoter region of the sheep KRTAP11-1 gene drives specific transcriptional activity in wool follicles, suggesting it may regulate hair keratinocyte specificity.

This study found that ovine dermal papilla cells exhibit robust aggregation and alkaline phosphatase activity, regulated by Wnt/β-catenin signaling, providing insights for improving wool performance and hair regeneration therapies.

This study found that the structure and mineral content of dromedary camel hair, specifically the medulla patterns, medulla index, and elemental composition, change with age, revealing differences among camels aged 1 year, 3-5 years, and 8-10 years.

Metabolic disorders can cause hair structure defects and growth issues, but amino acid levels in hair remain normal.

This study identified a unique concentric double-layered structure in both Japanese and Caucasian SHINAYAKA hair, associated with improved flexibility and elasticity, and developed a succinic acid treatment to enhance these properties.

Keratin-associated proteins are crucial for hair strength and structure.

In this study, researchers identified five unique sequences of the ovine KAP13-3 gene, with potential implications for wool traits due to observed amino acid changes.

This article reviews the composition and structure of mammalian hard keratins, focusing on the filamentous and nonfilamentous protein content, and reports no new experimental results.

This review covers the structure, development, cycle, and molecular regulation of hair follicles but does not report new results, aiming to offer insights for addressing hair follicle-related diseases.

This study investigated the effects of wool-derived hydrolysed keratin peptides on relaxed textured hair and found that mid- and high-molecular weight peptides improved mechanical strength and reduced breakage in different humidity conditions.