-
7621
Structural Characterization and Cytotoxic Activity Evaluation of Ulvan Polysaccharides Extracted from the Green Algae <i>Ulva papenfussii</i>
Published 2023-10-01“…The structure of ulvan was determined using High-Performance Liquid Chromatography (HPLC), Fourier Transform Infrared Spectroscopy (FT-IR), and Nuclear Magnetic Resonance spectroscopy (NMR) methods. The results showed that the extracted ulvan comprised a mixture of two different structural forms, namely (“A3s”) with the repeating disaccharide [→4)-β-D-GlcA<i>p</i>-(1→4)-α-L-Rha<i>p</i> 3S-(1→]n, and (“B3s”) with the repeating disaccharide [→4)-α-L-IdoA<i>p</i>-(1→4)-α-L-Rha<i>p</i> 3S(1→]n. …”
Get full text
Article -
7622
Macrophages protect against loss of adipose tissue during cancer cachexia
Published 2019-10-01“…Body composition of mice was analysed via nuclear magnetic resonance spectroscopy and microcomputed tomography. …”
Get full text
Article -
7623
Single-Crystal <sup>31</sup>P and <sup>7</sup>Li NMR of the Ionic Conductor LiH<sub>2</sub>PO<sub>4</sub>
Published 2020-04-01“…The electronic surroundings of phosphorus and lithium atoms in the ionic conductor lithium dihydrogen phosphate (LDP) have been studied by single-crystal nuclear magnetic resonance (NMR) spectroscopy at room temperature. …”
Get full text
Article -
7624
Diphenyl ethers from the cultured lichen mycobiont of Graphis handelii Zahlbr
Published 2024-02-01“…The combination of Nuclear Magnetic Resonance analysis and high-resolution mass spectroscopy determined their chemical structures. …”
Get full text
Article -
7625
Recycling preparative isolation of six bicyclol active metabolites from SD rat urine using macroporous resin, offline 2D LPLC/HPLC, and prep-HPLC combined with pharmacodynamic eval...
Published 2023-10-01“…The prepared metabolites possessed high purity (greater than98%), and were verified by nuclear magnetic resonance (NMR). Finally, an isoniazid (INH)-induced liver injury zebrafish model was established to evaluate the efficiency of the BIC, M7, and M8 metabolites. …”
Get full text
Article -
7626
Complex Positive Effects of SGLT-2 Inhibitor Empagliflozin in the Liver, Kidney and Adipose Tissue of Hereditary Hypertriglyceridemic Rats: Possible Contribution of Attenuation of...
Published 2021-09-01“…The mechanisms behind its cardio- and nephroprotection are still not fully clarified. (2) Methods: we used male hereditary hypertriglyceridemic (hHTG) rats, a non-obese model of dyslipidaemia, insulin resistance, and endothelial dysfunction fed standard diet with or without empagliflozin for six weeks to explore the molecular mechanisms of empagliflozin effects. Nuclear magnetic resonance (NMR)-based metabolomics; quantitative PCR of relevant genes involved in lipid and glucose metabolism, or senescence; glucose and palmitic acid oxidation in isolated tissues and cell lines of adipocytes and hepatocytes were used. (3) Results: empagliflozin inhibited weight gain and decreased adipose tissue weight, fasting blood glucose, and triglycerides and increased HDL-cholesterol. …”
Get full text
Article -
7627
Caryophyllene-Rich Essential Oils of Two Species from Southern Côte d’Ivoire: <i>Guibourtia ehie</i> (A. Chev.) J Léonard (Caesalpiniaceae) and <i>Oricia suaveolens</i> (Engl.) Ver...
Published 2023-01-01“…The essential oils of <i>Oricia suaveolens</i> and <i>Guibourtia ehie</i> from Southern Côte d’Ivoire were extracted by hydrodistillation then analyzed by gas chromatography in combination with retention indices [GC(RI)], gas chromatography coupled with mass spectrometry (GC-MS) and nuclear magnetic resonance of carbone-13 (<sup>13</sup>C NMR) And described here for the first time. …”
Get full text
Article -
7628
Protein Data Bank: A Comprehensive Review of 3D Structure Holdings and Worldwide Utilization by Researchers, Educators, and Students
Published 2022-10-01“…RCSB PDB serves tens of thousands of data depositors (using macromolecular crystallography, nuclear magnetic resonance spectroscopy, electron microscopy, and micro-electron diffraction) annually working on all permanently inhabited continents. …”
Get full text
Article -
7629
Synthesis, in silico modelling, and in vitro biological evaluation of substituted pyrazole derivatives as potential anti-skin cancer, anti-tyrosinase, and antioxidant agents
Published 2023-12-01“…AbstractTwenty-five azole compounds (P1–P25) were synthesised using regioselective base-metal catalysed and microwave-assisted approaches, fully characterised by high-resolution mass spectrometry (HRMS), nuclear magnetic resonance (NMR), and infrared spectra (IR) analyses, and evaluated for anticancer, anti-tyrosinase, and anti-oxidant activities in silico and in vitro. …”
Get full text
Article -
7630
Identification of a novel class of cyclic penta-peptides against hepatitis C virus as p7 channel blockers
Published 2022-01-01“…A combination of nuclear magnetic resonance (NMR) spectroscopy and molecular dynamics (MD) simulations revealed that CP7 blocking activity relies on direct binding to the p7 channel lumen at the N-terminal bottleneck region. …”
Get full text
Article -
7631
Helicobacter pylori Modulates Heptose Metabolite Biosynthesis and Heptose-Dependent Innate Immune Host Cell Activation by Multiple Mechanisms
Published 2023-06-01“…On the basis of one- and two-dimensional nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry, the structures of major reaction products were identified as β-d-ADP-heptose and β-heptose-1-monophosphate. …”
Get full text
Article -
7632
Improved lipidomic profile mediates the effects of adherence to healthy lifestyles on coronary heart disease
Published 2021-02-01“…In a case–control study of 4681 participants nested in the prospective China Kadoorie Biobank, 61 lipidomic markers in baseline plasma were measured by targeted nuclear magnetic resonance spectroscopy. Baseline lifestyles included smoking, alcohol consumption, dietary habit, physical activity, and adiposity levels. …”
Get full text
Article -
7633
Phytoceramides from the Marine Sponge <i>Monanchora clathrata</i>: Structural Analysis and Cytoprotective Effects
Published 2023-04-01“…Total ceramide, ceramide molecular species (obtained by RP-HPLC, high-performance liquid chromatography on reversed-phase column) and their sphingoid/fatty acid components were analyzed by NMR (nuclear magnetic resonance) spectroscopy and mass spectrometry. …”
Get full text
Article -
7634
Antibacterial, Resistance Modulation, Anti-Biofilm Formation, and Efflux Pump Inhibition Properties of <i>Loeseneriella africana</i> (Willd.) N. Halle (Celastraceae) Stem Extract a...
Published 2023-12-01“…Purification of the extract was carried out by chromatographic methods, and the isolated compounds were characterized based on nuclear magnetic resonance, Fourier transform infrared and mass spectrometry spectral data and comparison with published literature. …”
Get full text
Article -
7635
Grape polyphenols decrease circulating branched chain amino acids in overfed adults
Published 2022-10-01“…Samples from a similarly designed trial on females (20 subjects) were collected in parallel (Lausanne study). Nuclear magnetic resonance (NMR)-based metabolomics was conducted to characterize metabolome changes induced by overfeeding and associated effects from polyphenol supplementation. …”
Get full text
Article -
7636
Image‐guided metabolomics and transcriptomics reveal tumour heterogeneity in luminal A and B human breast cancer beyond glucose tracer uptake
Published 2024-02-01“…From a subset of patients, which showed high metabolic heterogeneity based on tracer uptake and pathology classification, tumour centre and periphery specimen tissue samples were further investigated by a targeted breast cancer gene expression panel and quantitative metabolomics by nuclear magnetic resonance (NMR) spectroscopy. All data were analysed in a combinatory approach. …”
Get full text
Article -
7637
A Coil-to-Helix Transition Serves as a Binding Motif for hSNF5 and BAF155 Interaction
Published 2020-04-01“…Here, we employed X-ray crystallography, nuclear magnetic resonance (NMR) spectroscopy, and various biophysical methods in order to investigate the detailed binding mechanism between hSNF5 and BAF155. …”
Get full text
Article -
7638
Fluorine Atoms on C<sub>6</sub>H<sub>5</sub>-Corrole Affect the Interaction with M<sup>pro</sup> and PL<sup>pro</sup> Proteases of SARS-CoV-2: Molecular Docking and 2D-QSAR Approac...
Published 2022-09-01“…The 2D-QSAR models indicated two separated regions of higher and lower affinity for M<sup>pro</sup>:<b>C1</b>–<b>C17</b> based on dual electronic parameters (σ<sub>I</sub> and σ<sub>R</sub>), as well as one model was obtained with a correlation between the docking score value of M<sup>pro</sup>:<b>C2</b>–<b>C17</b> and the corresponding <sup>13</sup>C nuclear magnetic resonance (NMR) chemical shifts of the sp<sup>2</sup> carbon atoms (δ<sub>C-1</sub> and δ<sub>C-2</sub>) of <b>C2</b>–<b>C17</b>. …”
Get full text
Article -
7639
Screening and characterizing the quality markers of Selaginella tamariscina (P. Beauv.) Spring using metabonomics and molecular networking
Published 2022-12-01“…The top-2 distinguishing markers were isolated from S. tamariscina and identified by molecular networking together with nuclear magnetic resonance spectroscopy (NMR). Network pharmacology predicted the bioactivity and cytotoxicity of the top-2 distinguishing markers. …”
Get full text
Article -
7640
Evaluation of the Local Anesthetic Activity, Acute Toxicity, and Structure–Toxicity Relationship in Series of Synthesized 1-Aryltetrahydroisoquinoline Alkaloid Derivatives In Vivo...
Published 2023-01-01“…The structures of the substances obtained were confirmed by infrared (IR) and nuclear magnetic resonance (<sup>1</sup>H and <sup>13</sup>C NMR) spectra. …”
Get full text
Article