Showing 1,021 - 1,040 results of 1,443 for search '"mass spectrometry"', query time: 0.07s Refine Results
  1. 1021

    Active Compounds of Red Ginger as Antioxidant Activity in the Supplementation and Treatment of Depression by Ira Aini Dania, Rusdiana Rusdiana, Aldy S. Rambe, Urip Harahap, Elmeida Effendy, Nanda Novziransyah

    Published 2024-02-01
    “…This study was experimental analytical study for analyzing secondary metabolism using phytochemical screening tests and examining active compounds with the combination of liquid chromatography with tandem mass spectrometry (LCMS/MS).Red ginger extracts contain secondary metabolic flavonoids of 48.79 mgQE/g, phenol 92.73 mgGAE/G and antioxidants of 39.96 ppm. …”
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    Article
  2. 1022

    New insights into the N-glycomes of Dictyostelium species by Alba Hykollari, Daniel Malzl, Chunsheng Jin, Carina Eschenbach, Kristína Kianičková, Iain B.H. Wilson, Katharina Paschinger

    Published 2025-01-01
    “…The detailed glycomic analysis of their fruiting bodies was based on isomeric separation of the glycan structures by HPLC, followed by mass spectrometry in combination with enzymatic digests and chemical treatments. …”
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    Article
  3. 1023

    Exploring the Predictive Role of 11‐Oxyandrogens in Diagnosing Polycystic Ovary Syndrome by Armaiti Parvez Mody, Maya Beth Lodish, Richard Joseph Auchus, Adina F. Turcu, Fei Jiang, Heather Gibson Huddleston

    Published 2025-01-01
    “…Data were compared to 78 healthy women of similar age, with serum samples obtained between 2017 and 2020. 11‐oxyandrogens and sex steroids were measured using mass spectrometry, and their associations to Rotterdam PCOS, age, and BMI were assessed. …”
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    Article
  4. 1024

    Action Mechanisms of Metformin Combined with Exenatide and Metformin Only in the Treatment of PCOS in Obese Patients by Jingwen Gan, Jie Chen, Rui-lin Ma, Yan Deng, Xue-song Ding, Shi-yang Zhu, Ai-jun Sun

    Published 2023-01-01
    “…Liquid chromatography-mass spectrometry (LC/MS) metabolomics revealed differences between the mechanisms of exenatide and metformin treatment of PCOS to some extent. …”
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    Article
  5. 1025

    Encapsulated LyeTx III Peptide: Cytotoxic Agent Isolated from <i>Lycosa erythrognatha</i> Spider Venom by Daniel Moreira dos Santos, Livia Ramos Santiago, Nayara Araújo dos Santos, Wanderson Romão, Jarbas Magalhães Resende, Maria Elena de Lima, Márcia Helena Borges, Rosy Iara Maciel de Azambuja Ribeiro

    Published 2025-01-01
    “…Its unique sequence (GKAMKAIAKFLGR-NH<sub>2</sub>), identified via mass spectrometry and Edman degradation, shows limited similarity to existing peptides. …”
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  6. 1026

    Assessment of Major and Trace Elements in Drinking Groundwater in Bisha Area, Saudi Arabia by Faleh Z. Alqahtani, Saifedin Y. DaifAllah, Yasir F. Alaryan, Abubakr M. Elkhaleefa, Eid I. Brima

    Published 2020-01-01
    “…All samples were analyzed for major and trace elements by using Inductively Coupled Plasma Mass Spectrometry (ICP-MS). In total, 15 elements were measured including four major elements (Na, K, Mg, and Ca) and 11 trace elements (V, Cr, Mn, Co, Ni, Cu, Zn, As, Se, Cd, and Pb). …”
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    Article
  7. 1027

    Critical Effects of Smoking Parameters on the Levels of Polycyclic Aromatic Hydrocarbons in Traditionally Smoked Fish and Meat Products in Finland by Mirja Hokkanen, Ulla Luhtasela, Pirkko Kostamo, Tiina Ritvanen, Kimmo Peltonen, Marika Jestoi

    Published 2018-01-01
    “…Eighty fish products and 62 meat products were sampled and analysed in Finland, in the year of 2012 for four marker polycyclic aromatic hydrocarbons (PAH4) with an accredited gas chromatography-tandem mass spectrometry method. In general, the determined PAH4 levels were relatively low and below the maximum levels. …”
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  8. 1028

    Difference in the Vitreal Protein Profiles of Patients with Proliferative Diabetic Retinopathy with and without Intravitreal Conbercept Injection by Chen Zou, Minjie Zhao, Jingjing Yu, Dandan Zhu, Yunzhi Wang, Xinping She, Yanan Hu, Zhi Zheng

    Published 2018-01-01
    “…Liquid chromatography-tandem mass spectrometry- (LC-MS/MS-) based proteomic methods were used to determine the protein profiles of the vitreous humor in patients with PDR treated with (IVC group; n=9) and without (PDR group; n=8) preoperative IVC. …”
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    Article
  9. 1029

    Chemical Composition and Biological Activities of the Essential Oils of Chrysophyllum albidum G. Don (African Star Apple) by Daniel Nartey, Joseph Nana Gyesi, Lawrence Sheringham Borquaye

    Published 2021-01-01
    “…Don, were characterized by gas chromatography-mass spectrometry in this study. The antimicrobial, antibiofilm, and antioxidant activities of the essential oils were also investigated. …”
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    Article
  10. 1030

    Outlining a Population “at Risk” of Parkinson’s Disease: Evidence from a Case-Control Study by Tommaso Schirinzi, Giuseppina Martella, Alessio D’Elia, Giulia Di Lazzaro, Paola Imbriani, Graziella Madeo, Leonardo Monaco, Marta Maltese, Antonio Pisani

    Published 2016-01-01
    “…A sample of 65 patients and 65 controls also underwent serum dosing of iron, copper, mercury, and manganese by means of Inductively Coupled-Plasma-Mass-Spectrometry (ICP-MS). Positive family history, toxicants exposure, non-current-smoker, and alcohol nonconsumer status occurred as significant risk factors in our population. …”
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    Article
  11. 1031

    Indoor Air Exposure to Multiple Agricultural Pesticides Potentially Posing the Highest Risk to Young Children by Sithembiso Sifiso Msibi, Chung-Yu Chen, Cheng-Ping Chang, Chiou-Jong Chen, Su-Yin Chiang, Kuen-Yuh Wu

    Published 2021-06-01
    “…Applying liquid chromatography with tandem mass spectrometry (LC-MS/MS) to the samples revealed mean ametryn, atrazine, pendimethalin and 2,4-dichlorophenoxyacetic acid (2,4-D) concentrations of 0.75, 0.32, 0.57 and 0.004 µg m−3, respectively, in the applicator households and corresponding values of 0.19, 0.03, 0.04 and 0.003 µg m−3, respectively, in the non-applicator households. …”
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    Article
  12. 1032

    In-depth proteomic profiling identifies potentiation of the LPS response by 7-ketocholesterol by Iain R. Phair, Magdalena Sovakova, Noor Alqurashi, Raid B. Nisr, Alison D. McNeilly, Douglas Lamont, Graham Rena

    Published 2025-03-01
    “…Here we used quantitative mass spectrometry to establish the effect of 7-KC on the mouse macrophage proteome. 7-KC independently mediated dynamic changes, including on atherogenic/M1 markers, cholesterol metabolism, biosynthesis and transport, as well as nutrient transport more broadly. …”
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    Article
  13. 1033

    Total Arsenic, Cadmium, and Lead Determination in Brazilian Rice Samples Using ICP-MS by Lidiane Raquel Verola Mataveli, Márcia Liane Buzzo, Luciana Juncioni de Arauz, Maria de Fátima Henriques Carvalho, Edna Emy Kumagai Arakaki, Richard Matsuzaki, Paulo Tiglea

    Published 2016-01-01
    “…This study is aimed at investigating a suitable method for rice sample preparation as well as validating and applying the method for monitoring the concentration of total arsenic, cadmium, and lead in rice by using Inductively Coupled Plasma Mass Spectrometry (ICP-MS). Various rice sample preparation procedures were evaluated. …”
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    Article
  14. 1034

    Simultaneous Determination of 34 Amino Acids in Tumor Tissues from Colorectal Cancer Patients Based on the Targeted UHPLC-MS/MS Method by Yang Yang, Feng Zhang, Shouhong Gao, Zhipeng Wang, Mingming Li, Hua Wei, Renqian Zhong, Wansheng Chen

    Published 2020-01-01
    “…A targeted ultrahigh-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method was established and validated for the simultaneous determination of 34 amino acids in tissue samples from colorectal cancer (CRC) patients. …”
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    Article
  15. 1035

    Design and Preparation of Activated Carbon with High Specific Surface Area and Porosity Through an Organic Activator Coupled with CO2 Activation by Yizhong Li, Xiaoqing Yan, Zhi Cui, Jingkang Yuan, Baorong Xu, Guidong Yang

    Published 2025-02-01
    “…By means of thermogravimetric (TG) analysis and simultaneous thermal analysis‐Fourier transform infrared spectroscopy‐gas chromatography/mass spectrometry a suggested activation process and mechanism of the novel organic activators is proposed. …”
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    Article
  16. 1036

    Mold Alkaloid Cytochalasin D Modifies the Morphology and Secretion of fMLP-, LPS-, or PMA-Stimulated Neutrophils upon Adhesion to Fibronectin by Svetlana I. Galkina, Natalia V. Fedorova, Marina V. Serebryakova, Evgenii A. Arifulin, Vladimir I. Stadnichuk, Ludmila A. Baratova, Galina F. Sud’ina

    Published 2017-01-01
    “…Simultaneous detection of neutrophil secretory products by mass spectrometry showed that all tested stimuli caused the secretion of MMP-9, a key enzyme in the neutrophil migration. …”
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    Article
  17. 1037

    Unusual open-system behaviour revealed by LA-MC-ICP-MS U–Th dating of coral and coralline algae bio-carbonates by Condomines, Michel, Bruguier, Olivier, Hajji, Inès, Zaara-Ben Mosbah, Chedia

    Published 2023-06-01
    “…This paper presents new U–Th ages obtained by LA-MC-CP-MS (laser ablation - multi-collector - inductively coupled plasma - mass spectrometry) on coral samples from a sedimentary core of the Tunis lagoon. …”
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    Article
  18. 1038

    Improved Risk Prediction of Acute Myocardial Infarction in Patients With Stable Coronary Artery Disease Using an Amino Acid-Assisted Model by Yi-Jing Zhao, Yong Li, Feng-Xiang Wang, Hao Lv, Yaoyao Qu, Lian-Wen Qi, Pingxi Xiao

    Published 2024-01-01
    “…Plasma amino acid levels were quantified using liquid chromatography tandem mass spectrometry (LC-MS/MS) employing a targeted metabolomics approach. …”
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    Article
  19. 1039

    Aroma profile of two commercial truffle species from Yunnan and Sichuan, China: inter- and intraspecific variability and shared key compounds by Bin Lu, Jesús Perez-Moreno, Fengming Zhang, Andrea C. Rinaldi, Fuqiang Yu

    Published 2021-03-01
    “…In this study, volatile organic compounds (VOCs) from fruiting bodies of two Chinese truffles of commercial relevance, Tuber indicum and Tuber pseudohimalayense, were analyzed using headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography-mass spectrometry (GC-MS). We aimed to characterize the aroma profile and determine whether it would be influenced by provenance and stage of maturation. …”
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    Article
  20. 1040