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This article presents a case of trichostasis spinulosa, a common but often unrecognized disorder, diagnosed through dermoscopic examination of black macules revealing bundled vellus hairs, with the patient declining treatment.

Hair movement can indicate hair quality and health.

This paper presents a new methodology combining magnetic tweezers and traction force microscopy to study keratinocyte mechanobiology, but reports no experimental results yet.

Different centrifugation speeds change the quality of platelet-rich plasma.

This paper reviews various techniques for measuring the physical and mechanical properties of human hair fibers, emphasizing their importance in developing effective cosmetic products.

Hair movement can indicate hair quality and health.

This study found that laboratory and African spiny mice have distinct spatiotemporal patterns in wound-induced hair neogenesis, with the Twist1 pathway playing a central role in epidermal-dermal interactions for hair primordia formation.

This study used a 3D live imaging system to map cell dynamics in human hair follicles, revealing patterns of cell movement and division that help explain hair fiber extrusion during hair growth.

This study presents a new method for evaluating cosmetic treatments by measuring the resistance of hair to mechanical wear, revealing differences related to hair ethnicity and treatment type.

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 review discusses the unique characteristics and possible pathophysiology of spiny keratoderma, reporting no new clinical results, but suggests that some therapies might alleviate symptoms.

This study found that straight crimp mutant wool differs from crimpy wool in the layout of cortical cells and the relative proportions of keratin and keratin-associated proteins.

This study found that hair treated with a supplemental hair care product showed significantly higher absorption, deeper penetration, and reduced dryness compared to untreated and water-treated hair, as measured with 3D Raman spectroscopy.

UV-enhanced trichoscopy helps diagnose hair shaft disorders like pili annulati.

In this exploratory in vitro study, treatment with spermidine increased cell viability and altered gene expression in human epidermal keratinocytes, suggesting potential benefits to cellular health and function, though effects on mitochondrial markers were not significant.

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.

This study developed a biobased copolymer called SELP::KP, showing improved hair strength, elasticity, and conditioning properties while being a safer alternative to conventional chemical treatments, based on application to human hair in a laboratory setting.

In this experimental study, there was no impact of the surrounding ferromagnetic film on the magnetization reversal processes in submicrometric antidot arrays, though a significant increase in coercivity was observed.

New resin B makes artificial hair fibers hold curls longer than traditional resin A.

This study investigated different centrifugation systems and found that low-speed protocols and certified centrifuges produced better-quality platelet-rich fibrin and recommended using FDA-approved glass tubes for safe and effective regenerative outcomes.

This review discusses advances in understanding tickling sensations and proposes that knismesis hypersensitivity in autism spectrum disorder may be due to impaired sensory integration.

This study found that milk protein grafting and cross-linking treatment significantly improved the pilling resistance of rabbit hair knitted fabric.

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 case report describes the characteristic clinicopathological features of trichodysplasia spinulosa in two boys with acute lymphocytic leukemia, highlighting its resolution as immune function normalizes.

This study found that the spermidine analog N1-methylspermidine prolonged hair follicle growth and decreased inflammation and oxidative stress in cultured hair follicles, suggesting potential relevance for treating inflammatory scalp diseases.

This study found that a centrifugation protocol of 1300 rpm/246 g for 20 minutes followed by 1600 rpm/373 g for 20 minutes achieved the highest platelet yield in platelet-rich plasma.

This study suggests that pili annulati is likely more common than traditionally thought, highlighting the importance of recognizing its characteristic clinical and trichoscopic features for accurate diagnosis.

This study found that keratin fibers like human hair undergo thermal and mechanical transitions that can help assess changes from cosmetic processes such as bleaching and perm-waving.

This study found that defective cross-linking in hair cuticles is observable in a minority of mouse hair mutants, suggesting different proteins are involved in cross-linking across cell types.

Uncombable hair syndrome causes dry, frizzy hair that can't be combed flat, seen in a young child.