98%
921
2 minutes
20
Small extracellular vesicles (sEVs) play a crucial role in intercellular communication, but their nanoscale size and heterogeneity make analysis challenging. This study introduces a scalable method for fabricating disk carbon fiber ultramicroelectrodes (UMEs) with precise size control. Size-matched UMEs enable single-sEV detection blocking collisions, achieving a high signal-to-background ratio and low noise. This approach offers unprecedented resolution in determining sEV concentration and size distribution.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1039/d5cc00793c | DOI Listing |
J Morphol
September 2025
School of Agriculture, Biomedicine and Environment, La Trobe University, Melbourne, Victoria, Australia.
Although the surface micro-ornamentation of the scales within the skin of snakes has been the subject of many previous studies, there has been little work done on the spectacle, a protective (keratinised) goggle separated from the underlying cornea by a sub-spectacular space. The surface ultrastructure of the "Oberhäutchen" of the spectacle is examined in nine species of snakes (five aquatic and four terrestrial) using light and electron microscopy, micro-computed tomography and gel-based profilometry. Significant topographic differences in cell size (increases of between 5.
View Article and Find Full Text PDFEpigenomics
September 2025
Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
Aims: Psychological resilience refers to an individual's capacity to adapt to adverse events. MicroRNAs (miRNAs) play a crucial role in regulating post-transcriptional processes, while small extracellular vesicles (sEVs) act as transport vehicles. This study aimed to employ genome-wide profiling to identify and validate differences in the expression of resilience-associated sEV-miRNAs between low resilience (LR) and high resilience (HR) in young adults.
View Article and Find Full Text PDFGenes Immun
September 2025
Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands.
In coeliac disease (CeD), the epithelial lining (EL) of the small intestine is severely damaged by a complex auto-inflammatory response, leading intraepithelial lymphocytes to attack epithelial cells. To understand the intestinal changes and genetic regulation in CeD, we investigated the heterogeneity in the transcriptomic profile of the duodenal EL using RNA-seq and eQTL analysis on predicted cell types. The study included duodenal biopsies from 82 patients, grouped into controls, gluten-free diet treated CeD and untreated CeD.
View Article and Find Full Text PDFJ Neuroendocrinol
September 2025
Center for Research in Neuroscience, Research Institute of the McGill University Health Centre, Montreal, Quebec, Canada.
The maintenance of extracellular fluid (ECF) osmolality and sodium concentration ([Na]) near optimal "set point" values sustains physiological functions and prevents pathological states such as hypo- and hypernatremia. The peptide hormones vasopressin (antidiuretic hormone) and oxytocin (a natriuretic hormone in rats) play key roles in this process. These hormones are synthesized by hypothalamic magnocellular neurosecretory cells (MNCs) that project to the neurohypophysis and are released into the systemic circulation in response to rises in ECF osmolality or [Na].
View Article and Find Full Text PDFMol Immunol
September 2025
Department of Clinical Laboratory, The Affiliated Cancer Hospital of Xinjiang Medical University, Suzhou East Road No. 789, Urumqi, Xinjiang 830011, China. Electronic address:
Hypoxia plays a critical role in regulating the progression of non-small cell lung cancer (NSCLC) by modulating the tumor immune microenvironment (TIME). Tumor-associated macrophages (TAMs), important components of TIME, can be regulated by hypoxic conditions. Unfortunately, the molecular mechanisms by which hypoxia regulates TAMs in TIME to affect NSCLC progression has not been fully delineated.
View Article and Find Full Text PDF