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Keratin fibers in hair twist left-handed.

Oxidized trichocyte keratin has a helical dislocation in its structure.

This study demonstrates that spatially resolved IR and Raman imaging can effectively reveal the molecular structure and composition of untreated human hair, providing insights into its chemistry and structural integrity.

This study examined developing hair cortex with electron microscopy and found that keratin fibrils form between specific regions in hair follicles and aggregate into twisted cables.

This review explains the mechanical composition and molecular interactions that determine hair's mechanical properties, without providing any new experimental findings.

In this narrative case report, the authors discuss a patient recently diagnosed with an early-stage hematologic malignancy, highlighting her skepticism toward conventional medicine and preference for natural remedies over pharmaceutical treatments.

This study found that while molecular hair structures were nearly identical across individuals, genetic factors seem to influence specific lipid compositions, as seen in identical-patterned hair from parent-child pairs and identical twins, but not fraternal twins.

This study found that coconut oil significantly increased the tensile strength of twisted hair fibers due to its ability to penetrate the hair core, in contrast to mineral oil.

This article reviews various hair abnormalities observable through trichoscopy in conditions like monilethrix, trichorrhexis nodosa, and ectodermal dysplasias, with no new clinical findings reported.

This study demonstrated that human hair shafts can be anatomically separated to obtain intact micron and nano keratin filaments using solvents like performic acid and urea.

This review discusses pili torti, a rare hair shaft disorder, and reports no new clinical results; it emphasizes the need to investigate underlying conditions in affected individuals.

This study observed that hair fibers in older women become more curved with age, decreasing hair luster due to their disordered alignment and structural differences between the convex and concave sides.

In this study, injecting chimeric RNA–DNA oligonucleotides into mice skin caused a temporary mutation in keratin 17, altering hair morphology, but the mutation was transient due to genetic compensation or cell replacement.

This study presents the first detailed 3D models of the complete K1/K10 keratin dimer and identifies structural features and interactions that may inform understanding of keratin filament assembly.

This article illustrates various hair shaft defects and suggests that dermatologists can diagnose most of them using light microscopy and polarization without needing advanced imaging techniques.

This article discusses the complexities of treating hair and scalp disorders in African American patients, emphasizing the importance of understanding their specific hair care practices and the unique impact on quality of life, but reports no new empirical findings.

This study found that hair transplantation using round grafts improved hair growth in African American women with end-stage CCCA, showing no postoperative scarring in the donor or recipient areas.

This article reviews the current practices and interpretations of research data on permanent waving and hair straightening, but does not present any new research findings.

This chapter reviews cultural practices and morphological differences in ethnic hair, relating them to specific disorders seen in these populations, without presenting new clinical results.

This review discusses the impact of various exogenous agents on hair, such as cosmetics and radiation, but reports no new experimental results.

This review discusses the impact of various external factors like cosmetics, traction, and radiation on hair health and color, but reports no new findings.

This study found that the stability of the coiled-coil structure in human hair keratin is maintained by ion-pairing and hydrophobic interactions, which are disrupted as pH approaches 7.0.

This study found that L-cystine-modified rabbit hair fibers had improved dye adsorption and spinnability, due to changes in secondary structure and surface characteristics.

The document explains the genetic causes and characteristics of inherited hair disorders.

The document explains how hair is studied in forensics to identify its source and its role in criminal investigations.

This study highlighted Keratin 17's critical role in cancer therapy resistance across several malignancies, involving various signaling pathways, and identified it as a significant biomarker and potential therapeutic target, particularly in reversing resistance.

This report describes two rare cases of desmoplastic melanoma presenting as alopecia neoplastica, highlighting a potential diagnostic pitfall for clinicians examining patients with scar-like alopecia.

This article discusses the role of the androgen receptor in regulating development and homeostasis, and reviews treatment approaches for conditions related to hormone imbalances, without reporting new clinical findings.

This review discusses the development of electrospun nanofibrous scaffolds for promoting angiogenesis in tissue engineering but notes that their clinical application beyond bone and skin repair is still limited.

This article reviews the complexities and challenges in classifying systemic lupus erythematosus and the problematic role of the anti-dsDNA antibody as a biomarker, without presenting new experimental findings.