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1781
Performance evaluation of four cascade impactors for airborne ultrafine-particle (UFP) collection: the influence of particle type, concentration, mass, and chemical nature
Published 2025-01-01“…We analyzed six markers representing typical UFP sources and various molecular<span id="page46"/> properties using HPLC-MS/FLD (high-performance liquid chromatography with mass spectrometry and fluorescence detection). These markers comprised benzo[a]pyrene (BaP), benzo[b]fluoranthene (BbF), levoglucosan (Levo), pinic acid (PA), terpenylic acid (TA), and N-(1,3-dimethylbutyl)-N'-phenyl-p-phenylenediamine (6PPD). …”
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1782
HPLC-MS standardization and validation methods for determination of calactin content in dichloromethane fraction of Calotropis gigantea (L.) Dryand. (Niu jiao gua) stem bark and it...
Published 2025-02-01“…Therefore, this study aimed to develop more sensitive and reliable method for measurement of calactin in CGD by using a HPLC- electrospray ionization mass spectrometry (ESI-MS) for its application on quality control and prediction of anticancer activity of CGD. …”
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1783
Biosynthesis inhibition of miR-142-5p in a N 6-methyladenosine-dependent manner induces neuropathic pain through CDK5/TRPV1 signaling
Published 2025-01-01“…For assessing the interaction mechanism and binding site between TRPV1 and CDK5, various techniques were applied, including mass spectrometry, coimmunoprecipitation (co-IP), and glutathione-S-transferase (GST)-pulldown assays. …”
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1784
Whole genome sequencing of a novel carrageenan-degrading bacterium Photobacterium rosenbergii and oligosaccharide preparation
Published 2025-01-01“…Hydrolysis products were analyzed using thin-layer chromatography (TLC) and electrospray ionization mass spectrometry (ESI-MS).ResultsPhotobacterium rosenbergii GDSX-4 is a Gram-negative bacterium isolated from the red algae, capable of degrading several polysaccharides. …”
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1785
Metabolomics insights into doxorubicin and 5-fluorouracil combination therapy in triple-negative breast cancer: a xenograft mouse model study
Published 2025-01-01“…This study aimed to investigate the effects of doxorubicin (DOX) and 5-fluorouracil (5-FU) as monotherapies and in combination using an established MDA-MB-231 xenograft model in female BALB/C nude mice employing advanced metabolomics analysis to identify molecular alterations induced by these treatments.MethodsWe conducted comprehensive plasma and tumor tissue sample profiling using ultra-high-performance liquid chromatography-electrospray ionization quadrupole time-of-flight mass spectrometry (UHPLC-ESI-QTOF-MS).ResultsEach treatment group exhibited unique metabolic profiles in plasma and tumor analysis. …”
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1786
T Cell-Derived Apoptotic Extracellular Vesicles Ameliorate Bone Loss via CD39 and CD73-Mediated ATP Hydrolysis
Published 2025-01-01“…Therefore, this study aimed to investigate whether T cell-derived ApoEVs could promote bone mass recovery in osteoporosis mice and reveal the underlying mechanisms.Methods: ApoEVs were isolated through sequential centrifugation, and their proteomic profiles were identified via mass spectrometry. Western blot and immunogold staining confirmed the enrichment of CD39 and CD73 on ApoEVs. …”
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1787
AlphaFold-based AI docking reveals AMPK/SIRT1-TFEB pathway modulation by traditional Chinese medicine in metabolic-associated fatty liver disease
Published 2025-02-01“…Liquid chromatography-mass spectrometry combined with molecular docking expounded its five compounds in QGJZF binding to AMPK protein. …”
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1788
Serum metabolome associated with novel and legacy per- and polyfluoroalkyl substances exposure and thyroid cancer risk: A multi-module integrated analysis based on machine learning
Published 2025-01-01“…Liquid chromatography-high resolution mass spectrometry determined serum 11 PFAS and untargeted metabolome profile. …”
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1789
Vitamin K‐dependent gamma‐carboxyglutamic acid protein 1 promotes pancreatic ductal adenocarcinoma progression through stabilizing oncoprotein KRAS and tyrosine kinase receptor EGF...
Published 2025-01-01“…PDAC cell lines with overexpressed, knockdown, and mutated PRRG1 were developed to study biological functions and pathways using RNA‐seq, co‐immunoprecipitation with mass spectrometry, Western blotting, and immunofluorescence. …”
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1790
Identification of reproductive performance in Bali-polled bulls using computer-assisted semen analysis and plasma seminal proteomics
Published 2025-01-01“…Seminal plasma proteins were analyzed through liquid chromatography–tandem mass spectrometry (LC-MS/MS) and annotated using the UniProt database, PANTHER for gene ontology, and STRING database for protein interactions. …”
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1791
Association between fat-soluble vitamin co-exposure patterns and blood pressure in people with hypertension: a cross-sectional study
Published 2025-01-01“…The plasma concentrations of fat-soluble vitamins (A, E, D, and K) were assessed using liquid chromatography coupled with the mass spectrometry method. Participants were categorized into different co-exposure patterns using the unsupervised K-means clustering method. …”
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1792
N6-methyladenosine RNA modification regulates the transcription of SLC7A11 through KDM6B and GATA3 to modulate ferroptosis
Published 2025-01-01“…Methods Liquid Chromatography-Tandem Mass Spectrometry (HPLC/MS/MS) was used to detect changes in m6A levels in cells. …”
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1793
Research note: The critical role of the interaction between Eimeria tenella invasion protein RON2 and host receptor annexin A2 in mediating parasite invasion
Published 2025-02-01“…The receptor interacting with the EtRON2 protein was identified through a GST pull-down assay, followed by mass spectrometry, and the interaction was further validated through subcellular co-localization analysis. …”
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1794
Disruption of tumor-intrinsic PGAM5 increases anti-PD-1 efficacy through the CCL2 signaling pathway
Published 2025-01-01“…Immunofluorescence, chromatin-immunoprecipitation, ELISA, mass spectrometry were conducted to explore the molecular pathway. …”
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1795
Spatial-temporal distribution of phytoplankton HAB species and contamination status of oyster toxins under intensive oyster farming in Jiangmen coasts, the South China Sea
Published 2025-02-01“…The diversity and spatial-temporal distribution of phytoplankton HAB species, contamination status of oyster toxin, and their sources were investigated in Jiangmen oyster farming area based on morphological observation and liquid chromatography-tandem mass spectrometry analysis. The results revealed there were 28 HAB species, including 19 harmless HAB species, two toxic species (Akashiwo sanguinea and Karenia brevis), and seven toxin-producing microalgae (Alexandrium pacificum, Dinophysis caudata, D. miles, D. fortii, Gonyaulax spinifera, Gymnodinium catenatum, and K. mikimotoi). …”
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1796
品种和产地对核桃油脂肪酸组成及含量的影响 "Effects of varieties and producing areas on fatty acid composition and content of walnut oil"
Published 2025-01-01“…A total of 51 varieties of walnuts, Xiangling walnuts from 7 producing areas and Qingxiang walnuts from 5 producing areas were used as research objects,the composition and content of fatty acid in walnut oil were determined by gas chromatography-mass spectrometry (GC-MS), and correlation analysis, principal component analysis (PCA) and cluster analysis were carried out.The results showed that 51 varieties of walnut oils contained 13 kinds of fatty acids, and the total contents of linoleic acid, oleic acid, α-linolenic acid, palmitic acid and stearic acid were higher, and they accounted for about 99% of the total fatty acid content, the content of unsaturated fatty acid in walnut oil was as high as about 90%. …”
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1797
Contribution à l’histoire de la boulangerie romaine : étude de « pains/galettes » découverts en Gaule
Published 2021-12-01“…Chemical approaches using mass spectrometry occasionally supplement these methods, in order to identify certain aspects of their molecular composition. …”
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1798
Cancer cells avoid ferroptosis induced by immune cells via fatty acid binding proteins
Published 2025-02-01“…Methods included mass spectrometry-based lipidomics, targeted lipidomics, Oil Red O staining, Seahorse analysis, quantitative PCR, immunohistochemistry, PPARγ transcription factor assays, ChIP-seq, untargeted lipidomic analysis, ROS assay, ex vivo co-culture of CD8+ T cells with cancer cells, ATAC-seq, RNA-seq, Western blotting, co-immunoprecipitation assay, flow cytometry and Imaging Mass Cytometry. …”
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1799
Analysis of fatty acid-derived lipids in critically ill patients after cardiac surgery yields novel pathophysiologically relevant mediators with possible relevance for systemic inf...
Published 2025-01-01“…We therefore hypothesized that fatty-acid-derived lipid mediators might be regulated during inflammatory stages and other clinical events in critically ill patients and might serve as potential biomarker candidates.Methods and study designUsing liquid chromatography-tandem mass spectrometry (LC-MS/MS), we determined the levels of 53 lipid mediators in plasma from nine patients. …”
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1800
Characteristics of adherent and non-adherent patients with hypertension in a Norwegian cross-sectional study
Published 2025-02-01“…All patients had their antihypertensive drugs in serum analyzed by ultra-high-pressure liquid chromatography-tandem mass spectrometry to identify their adherence to the 23 most used antihypertensive agents. …”
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