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This study suggests that human keratin fiber matrix has a well-defined nano-scale grainy structure rather than being amorphous, with grain size influenced by chemical treatments, temperature, humidity, and follicle-level factors.

This study observed that selectively activating activin in the epidermis of mice enhanced reepithelialization during wound healing without altering the quality of the healed wound.

This case study found that a 7-year-old girl's crystalline cataract had sulfur-containing amino acids likely cystine, and was associated with abnormal hair conditions.

This study found that the PSEN1-P242LfsX11 mutation in hidradenitis suppurativa influences cytokine and chemokine expression in macrophages, potentially affecting inflammatory responses.

This review discusses the chemical effects of UV radiation on hair, hair photoaging, and photoprotective measures, and calls for more focused research in hair photoprotection as a field.

This study found that keratin derivatives with functionalized thiol groups improved binding to both natural and bleached hair fibers, suggesting a promising strategy for enhancing keratin's durability in hair repair.

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 study suggests that vitamin D-upregulated protein 1 (VDUP1) might play a unique role in regulating the differentiation of epidermal cells.

This study reports on the biochemical characteristics of S100A3 protein in human hair cuticle, notably finding its N-terminal methionine is acetylated and has a slightly lower isoelectric point compared to the recombinant version.

This article explores how various nutrients and metabolic processes impact wool and hair follicle function in animals but reports no new experimental findings.

This study found that protein extracts from human hair demonstrated significant antioxidant abilities, protecting human dermal fibroblasts from oxidative stress, suggesting potential for biomedical applications.

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

This study found that homocysteine-keratin accumulation in human hair increases towards the tips, linked to copper/iron-catalyzed demethylation of methionine, and may contribute to keratin damage.

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 bleached hair showed optimal protein structural integrity and tensile strength at pH 5, with significant changes in cross-linking, water content, and diameter at more alkaline or acidic levels.

This review discusses the complexity and genetic organization of human keratin gene clusters and addresses the ongoing need for an updated unified naming system; it reports no new clinical results.

This study investigated various proteins as eco-friendly hair perming agents for Asian hair and found that bovine serum albumin and keratin achieved perming results comparable to commercial products, while also increasing hair moisture, indicating a protective effect during heat styling.

This study found that patients with androgenetic alopecia had increased oxidative stress and microinflammation, contributing to hair loss, due to elevated levels of specific serum biomarkers compared to controls.

This study found that chemical hair straightening significantly reduced hair curl and improved smoothness and shine, but did not significantly affect transverse fissures or split ends, indicating potential benefits with some side effects.

This study found that the alkaloids cepharanthine and berbamine bind to SK2 and SK3 channel subtypes with affinities that match their concentrations active against various diseases, prompting further investigation into SK channels' role in their therapeutic effects.

This study found that permanent wave treatment accelerates hair degradation after protease exposure, showing significant morphological differences compared to untreated hair and linked to damage from Alpha-helical region denaturation.

In this study, researchers found that a protein-enriched cream made from Spirulina platensis improved the physical structure of natural hair, as evidenced by more intact and smoother cuticles compared to a control cream without protein, suggesting its potential for hair care applications.

This abstract reviews the bubble hair abnormality caused by high-temperature styling tools and reports no new experimental results.

This study found that thermal hair straightening in Asian women was associated with various signs of scalp and hair damage, including CCCA-like hair loss.

This study demonstrated that keratin extract can stimulate hair growth by inducing the anagen phase in telogenic mice.

This study reported successful recovery of biologically active recombinant murine Wnt3a without detergent, suggesting usefulness for structure-activity studies avoiding detergent-related issues.

This study found that RALF peptides, through liquid-liquid phase separation, form condensates with pectin and other proteins, playing a pivotal role in plant development and stress response regulation.

This study demonstrates that the amino-terminally shortened KGF-1 variant with 135 residues maintains biological activity, suggesting it may serve as an alternative to the original KGF-1 for certain therapeutic applications.

This review discusses the evolution of modern shampoos from basic cleansing agents to products with specific therapeutic uses and emphasizes the importance of dermatologists understanding shampoo mechanisms and appropriate selection for scalp and hair health.

This article reviews the role of trichoscopy in diagnosing hair weathering conditions like trichorrhexis nodosa and trichoptilosis and suggests treatment by avoiding harmful chemical and physical factors, but it provides no new research findings.