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This study found that white hair fibers have lower lipid content and different water absorption dynamics compared to brown hair fibers, suggesting differences in their barrier functions.

This review discusses the limitations of current hair classification systems and highlights the need for standardized reporting of key hair characteristics to improve study comparisons; it reports no new results.

This study found that hair treated with shampoo containing water-soluble silicone demonstrated smoother sliding and better detangling, compared to shampoo with water-insoluble silicone, due to differences in conditioning film formation.

This study found that inhibiting arachidonate 12-lipoxygenase (ALOX12) may enhance hair cuticle maturation by increasing S100A3 protein citrullination and promoting cuticular differentiation in isolated human hair follicles.

This review highlights the significant risks posed by mercury to the endocrine system, including disruptions in hormone synthesis and regulation, stress response, and potential reproductive dysfunction, while noting the need for further research on dose-response relationships and long-term impacts.

In this study, researchers used SEM/SDD-EDS to identify waterborne minerals like calcium and aluminum in the scalp hair cuticle of individuals using treated or untreated water for hair washing, finding that prior application of coconut oil or conditioners can prevent calcium uptake.

This study found that various steroids affected the mRNA expression of enzymes involved in lipid metabolism in hamster flank organs, with different impacts depending on the steroid and combination used.

In this study, researchers found that the efflux of calcium in root hairs of Arabidopsis thaliana, particularly through the ER-localized ACA2 and ACA7, is crucial for modulating cytoplasmic calcium signals and enabling proper root hair growth, with disruptions leading to impaired elongation.

This study found that water extract of olive leaf may enhance markers linked to epidermal and dermal stem cell activity and potentially improve skin aging, especially in individuals who do not exercise regularly.

In this study, researchers found that the lipid composition in hair significantly affects water diffusion and may explain differences in dyeing and cosmetic treatment responses between Asian and European hair, with CP2 fibers having more lipids than CP3 fibers.

In this study, the researchers found that the water-soluble fraction of Rhus semialata gall extract and its component Penta-O-Galloyl-β-D-Glucose promoted hair growth in human dermal papilla cells, and clinical trials supported these findings, showing improved hair density and appearance compared to placebo.

In this study, researchers developed a herbal hair dye using henna and other natural ingredients that achieved a color similar to natural black on blonde hair, though further testing on various hair shades is needed to explore its full benefits.

This study used in silico analysis to identify 4-[2-(4-nitrophenyl)ethylcarbamoyl]benzenesulfonyl as a potential inhibitor of the EGFR mutant associated with NSCLC, highlighting the need for further in vitro and in vivo validation.

This study found that an octapeptide binding to Lgr5 can enhance the proliferation and differentiation of human primary hair cells by activating the Wnt/β-catenin signaling pathway, suggesting its potential as a treatment for hair loss in androgenetic alopecia.

This review discusses how sex hormone levels and local steroid synthesis influence gender differences in aging skin, reporting no new clinical results.

This study found that the water extract of Cacumen Platycladi promotes hair growth and follicle development in mice, possibly by influencing dermal papilla cells through the Akt/GSK3β/β-Catenin signaling pathway.

This study found that hair from ovarian teratomas shares similar chemical composition and morphology with scalp hair, but differs in physical properties and cysteic acid bands.

This case study reported that absence of alopecia does not reliably predict responsiveness to vitamin D treatment in Vitamin D-dependent rickets type II, as demonstrated by a patient with normal hair growth who showed extreme resistance.

This study found that a novel missense mutation in the vitamin D receptor caused hereditary 1,25-dihydroxyvitamin D-resistant rickets with alopecia by disrupting protein function, highlighting the importance of DNA binding in hair development.

A genetic mutation caused severe rickets and alopecia in an Indian patient, but high-dose calcium and phosphate treatment improved their condition.

This study found that coconut oil impedes hair hydration more effectively than soybean oil by penetrating deeper, and suggested a new model for intermediate filament assembly in hair.

In this study, UVB exposure was found to alter certain chemical properties of the hair shaft, such as keratin components and water content, without significantly affecting its physical morphology.

This review discusses the role of glucocorticoids in treating severe inflammatory disorders and highlights their potential adverse effects, recommending dosage management to minimize these risks; no new clinical results are reported.

This study reports that among men, skin surface hydration and pH change with age, but transepidermal water loss and sebum production show less variation.

This review discusses the extraction, purification, modification, and biological activity of polysaccharides from Traditional Chinese Medicine and reports no new research findings.

This study found that cellular retinoic acid-binding proteins and fatty acid-binding proteins are dynamically expressed in skin development and respond differently to retinoic acid, β-catenin, and Notch signaling.

This article discusses how drug molecules integrate into hair fibers, focusing on biological transport mechanisms and physicochemical factors, but reports no new experimental findings.

This study found that moderate water stress in rice plants induces rhizosheath formation, influenced by abscisic acid and auxin pathways, suggesting potential for breeding drought-resistant rice varieties.

This study found that women with female pattern androgenic alopecia have significantly higher levels of certain androgens and androgen sulfates compared to normal premenopausal women, suggesting markers for diagnosis and treatment efficacy.

This review examines non-invasive methods for diagnosing inflammatory skin diseases like lupus erythematosus and psoriatic inflammation using samples from plucked hair and skin tape-strips, but no new clinical results are presented.