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Recent Advances in Synthetic Strategies of Glycans and their Pharmaceutical Applications.
Curr Med Chem
January 2025
Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, UMR 8232, 4 Place Jussieu, 75005-Paris, France.
The understanding of glycans, the third life chain, is widely desired. Naturally, the glycoconjugates are found in heterogeneous forms due to the enzyme competition in the same process. As a result, the synthesis of homogeneous glycans has become one of the trending research topics.
View Article and Find Full Text PDFAnalysis of the interaction mechanism between straw soil rotary tillage blade during rotary tillage process.
Sci Rep
January 2025
College of Mechanical and Electrical Engineering, Shihezi University, Shihezi, 832003, China.
In response to the rotary ploughing equipment in the stubble land to implement protective operations, the stubble is large in number and strong in toughness, not easy to crush, resulting in rotary ploughing equipment to produce entanglement and increased resistance to rotary ploughing and other issues. In this study, researchers designed a bionic rotary tillage blade (B-RTB) based on the bionic structural equations of the Marmota claw. A straw-soil complex shear performance test was conducted to investigate the effect of straw on soil shear strength.
View Article and Find Full Text PDFCarbene-catalyzed chirality-controlled site-selective acylation of saccharides.
Nat Commun
January 2025
School of Chemistry, Chemical Engineering, and Biotechnology, Nanyang Technological University, Singapore, 637371, Singapore.
Acylation stands as a fundamental process in both biological pathways and synthetic chemical reactions, with acylated saccharides and their derivatives holding diverse applications ranging from bioactive agents to synthetic building blocks. A longstanding objective in organic synthesis has been the site-selective acylation of saccharides without extensive pre-protection of alcohol units. In this study, we demonstrate that by simply altering the chirality of N-heterocyclic carbene (NHC) organic catalysts, the site-selectivity of saccharide acylation reactions can be effectively modulated.
View Article and Find Full Text PDFIdentification of allelochemicals under continuous cropping of Morchella mushrooms.
Sci Rep
December 2024
Germplasm Bank of Wild Species & Yunnan Key Laboratory for Fungal Diversity and Green Development, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, 650201, China.
Continuous cropping obstacle has been becoming the bottleneck for the stable development of morel cultivation. The allelopathic effect of soil allelochemicals may play an instrumental role in the morel soil sickness. In this study, the allelochemicals were identified by gas chromatography-mass spectrometry (GC-MS) combined with in vitro bioassay.
View Article and Find Full Text PDFRNA profiles differ between small and large extracellular vesicle subsets isolated from porcine seminal plasma.
BMC Genomics
December 2024
Department of Medicine and Animal Surgery, Veterinary Science, University of Murcia, Murcia, Spain.
Background: Extracellular vesicles (EVs) are essential for cell-to-cell communication because they transport functionally active molecules, including proteins, RNA, and lipids, from secretory cells to nearby or distant target cells. Seminal plasma contains a large number of EVs (sEVs) that are phenotypically heterogeneous. The aim of the present study was to identify the RNA species contained in two subsets of porcine sEVs of different sizes, namely small sEVs (S-sEVs) and large sEVs (L-sEVs).
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