Lipids are major structural component of the brain and play key roles in signaling functions in the central nervous system (CNS), such as the hippocampus. In particular, sulfatide is an abundant glycosphingolipid component of both the central and the peripheral nervous system and is an essential lipid component of myelin membranes. Lack of sulfatide is observed in myelin deformation and neurological deficits. Previous studies with antisulfatide antibody have investigated distribution of sulfatide expression in neurons; however, this method cannot distinguish the differences of sulfatide lipid species raised by difference of carbon-chain length in the ceramide portion in addition to the differences of sulfatide and seminolipid. In this study, we solved the problem by our recently developed nanoparticle-assisted laser desorption/ionization (nano-PALDI)-based imaging mass spectrometry (IMS). We revealed that the level of sulfatide in the middle molecular layer was significantly higher than that in granule cell layers and the inner molecular layer in the dentate gyrus of rat hippocampus.
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http://dx.doi.org/10.1007/s00795-008-0427-6 | DOI Listing |
Front Plant Sci
December 2024
Chongqing Key Laboratory of Big Data for Bio Intelligence, Chongqing University of Posts and Telecommunications, Chongqing, China.
Introduction: Orchids are renowned for their intricate floral structures, where sepals and petals contribute significantly to ornamental value and pollinator attraction. In Section , the distinctive curvature of these floral organs enhances both aesthetic appeal and pollination efficiency. However, the molecular and cellular mechanisms underlying this trait remain poorly understood.
View Article and Find Full Text PDFACS Appl Electron Mater
December 2024
James Watt School of Engineering, University of Glasgow, G12 8QQ Glasgow, Scotland, U.K.
Electronics based on natural or degradable materials are a key requirement for next-generation devices, where sustainability, biodegradability, and resource efficiency are essential. In this context, optimizing the molecular chemical structure of organic semiconductor compounds (OSCs) used as active layers is crucial for enhancing the efficiency of these devices, making them competitive with conventional electronics. In this work, honey-gated organic field-effect transistors (HGOFETs) were fabricated using four different perylene derivative films as OSCs, and the impact of the chemical structure of these perylene derivatives on the performance of HGOFETs was investigated.
View Article and Find Full Text PDFPeerJ
December 2024
The Thomas H. Gosnell School of Life Sciences, Biotechnology and Molecular Bioscience Program, College of Science, Rochester Institute of Technology, Rochester, New York, United States.
Background: A grapevine crown gall tumor strain, sp. strain Rr2-17 was previously reported to accumulate copious amounts of diverse quorum sensing signals during growth. Genome sequencing identified a single luxI homolog in strain Rr2-17, suggesting that it may encode for a AHL synthase with broad substrate range, pending functional validation.
View Article and Find Full Text PDFJ Skin Cancer
December 2024
Scientific Department, Medical Laboratory CSD, Kyiv, Ukraine.
Point mutations at codon 600 of the BRAF oncogene are the most common alterations in cutaneous melanoma (CM). Assessment of BRAF status allows to personalize patient management, though the affordability of molecular testing is limited in some countries. This study aimed to develop a model for predicting alteration in BRAF based on routinely available clinical and histological data.
View Article and Find Full Text PDFBiosens Bioelectron
December 2024
Department of Chemistry "Ugo Schiff', University of Florence, Via della Lastruccia, 3-13, 50019, Sesto Fiorentino, Italy. Electronic address:
Bio-Layer Interferometry (BLI) has emerged as a versatile technique in affinity-based biosensing, analogous to Surface Plasmon Resonance. BLI enables real-time, label-free detection, and quantification of biomolecular interactions between an immobilized receptor and an analyte in solution. The BLI sensor comprises an optical fiber with an internal reference layer at the end and an external biocompatible layer where biological receptors are immobilized and exposed to the solution.
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