Showing 961 - 980 results of 1,443 for search '"mass spectrometry"', query time: 0.06s Refine Results
  1. 961

    Combined metabolomics and 16S rDNA sequence analyses of the gut microbiome reveal the action mechanism of Fructus Akebiae against hepatic fibrosis by Rong-Rong Wu, Duo-Rui Nie, Fang-Hui He, Zhi-Hang Li, Fei Xu, Fei Xu, Fei Xu

    Published 2025-02-01
    “…The gut microbiota was analyzed through 16S rDNA sequencing analysis of liver metabolites using liquid chromatography-mass spectrometry. Furthermore, network pharmacology was used to determine the specific molecular regulation mechanism of FAE in hepatic fibrosis treatment.ResultsFAE treatment markedly improved the pathological changes in the hepatic fibrosis. …”
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  2. 962

    Bioactive Properties of <i>Pentacalia vaccinioides</i> (Kunth) Cuatrec. (Asteraceae) Essential Oils: Evaluation of Antimicrobial and Antioxidant Activities by Luis G. Sequeda-Castañeda, María A. Castellanos-Gómez, Carlos L. A. Céspedes-Acuña

    Published 2025-01-01
    “…The identification and quantification of the compounds present in the EOs were conducted by gas chromatography coupled to mass spectrometry (GC-MS). The main secondary metabolites identified in most samples obtained by different extraction techniques included phenol (~18%), 1S-α-pinene (~15%), β-phellandrene (~13%), β-pinene (~12%), 4-terpineol (~10%), γ-terpinene (~10%), trans-nerolidol (~8%), limonene (~8%), and β-thujene (~6%). …”
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  3. 963

    Evaluation of volatile safety in children's play mats based on non-targeted screening and risk prioritization by Shuang Liang, Haoyang Shi, Yinhui Yang, Qing Zhang, Zhijuan Wang, Qing Lv

    Published 2025-01-01
    “…In this study, 34 play mats, comprising four materials (3 EPE, 15 XPE, 5 PVC, 11 EVA), were subjected to non-targeted screening based on headspace gas chromatography-Orbitrap high-resolution mass spectrometry (HS-GC-Orbitrap HRMS), which screened out 71 volatile substances. …”
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  4. 964

    Lysine Reacts with Cholesterol Hydroperoxide to Form Secosterol Aldehydes and Lysine-Secosterol Aldehyde Adducts by George Wafula Wanjala, Arnold Nola Onyango, David Rasugu Abuga, John Kamathi Muchuna, Calvin Onyango, Moses Makayoto

    Published 2020-01-01
    “…Here, we subjected cholesterol to photosensitized oxidation, which predominantly produces Ch-5α-OOH and minor amounts of the 6α- and 6β-hydroperoxides, exposed the hydroperoxide mixture to lysine in the presence of the antioxidant 2,6-ditertiary-butyl-4-hydroxytoluene (BHT), and analysed the reaction mixture by liquid chromatography-electrospray ionization-mass spectrometry. Consistent with the postulated lysine-catalysed formation of secosterol aldehydes, we detected formation of the latter and several types of their lysine adducts, including carbinolamines, Schiff’s bases, and amide-type adducts. …”
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  5. 965

    Prednisolone pharmacokinetics in dogs with protein‐losing enteropathy by Sara A. Jablonski, Jessica L. Strohmeyer, John P. Buchweitz, Andreas F. Lehner, Daniel K. Langlois

    Published 2025-01-01
    “…Total and non‐protein bound serum prednisolone concentrations were determined using liquid chromatography tandem‐mass spectrometry, and pharmacokinetics variables were derived from the drug concentration data. …”
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  6. 966

    4,6-Disubstituted pyrimidine-based microtubule affinity-regulating kinase 4 (MARK4) inhibitors: synthesis, characterization, in-vitro activity and in-silico studies by Ashanul Haque, Khalaf M. Alenezi, Mohd. Saeed Maulana Abdul Rasheed, Md. Ataur Rahman, Saleha Anwar, Shahzaib Ahamad, Dinesh Gupta

    Published 2025-01-01
    “…The drug-likeness feature and toxicity of the molecules were evaluated using QikProp and other tools.ResultsCompounds were synthesized following a multi-step approach and characterized using multi-nuclear magnetic resonance (1H/13C-NMR) and mass spectrometry. ATPase inhibition assay of the compounds against MARK4 showed an IC50 value in the micromolar (μM) range. …”
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  7. 967

    Recent Developments in Heavy Metals Detection: Modified Electrodes, Pretreatment Methods, Prediction Models and Algorithms by Yujie Shi, Shijie Zhang, Hang Zhou, Yue Dong, Gang Liu, Wenshuai Ye, Renjie He, Guo Zhao

    Published 2025-01-01
    “…This review aims to highlight the commonly used methods for detecting heavy metals (such as atomic absorption spectroscopy (AAS), atomic emission spectroscopy (AES), inductively coupled plasma–mass spectrometry (ICP-MS), square-wave anodic stripping voltammetry (SWASV), etc.), with a particular focus on electrochemical detection and electrode modification materials. …”
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  8. 968

    Effect of tempering temperature on low-temperature impact toughness of 35MnB steel by Ping Ni, Wen Shi, Hengchang Lu, Bo Zhang, Han Dong

    Published 2025-01-01
    “…The form and distribution of boron in the steel were characterized by time-of-flight secondary ion mass spectrometry (TOF-SIMS) combined with transmission electron microscopy (TEM). …”
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  9. 969

    Effects of pits of different ages on ethyl acetate and its metabolism-related microorganisms during strong-flavor Baijiu fermentation by Jing Zhang, Jing Zhang, Yunxuan Duan, Yang Lin, Jing Chen, Jie Cheng, Jie Cheng, Chuan Song, Jincen Zuo, Suyi Zhang, Suyi Zhang, Yong Zuo

    Published 2025-01-01
    “…In this study, the main esters and their related microorganisms in different years of pits (5, 35 and 100 years) of strong-flavor Baijiu were comprehensively researched by headspace solid-phase microextraction gas chromatography mass spectrometry (HS-SPME-GC-MS) and amplicon sequencing. …”
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  10. 970

    Analysis and Evaluation of Quality Indicators and Volatile Compounds of Different Rice Cultivars with Geographical Indication by WANG Qin, ZHOU Changyan, ZHAO Xiaoyan, LI Xiaobei, LI Xujiao, JIANG Zhenghui, ZHANG Yanmei

    Published 2025-02-01
    “…Using headspace solid-phase microextraction (HS-SPME) combined with gas chromatography-mass spectrometry (GC-MS) followed by odor activity value (OAV) analysis, the major odor-active compounds of rice were identified as 2-acetyl-1-pyrroline, hexanal, heptanal, octanal, nonanal, trans-2-octenal, hexanol, 1-octen-3-ol, and heptanol. …”
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  11. 971

    Aspilia africana (Pers.) C.D. Adams and Manihot esculenta Crantz Exhibit Antibacterial Activity against Resistant Salmonella typhi Strains by Richard Agyen, Yaw Duah Boakye, Theresa Appiah Agana, Vivian Etsiapa Boamah, Clement Osei Akoto, Michael Owusu, Francis Adu, Christian Agyare

    Published 2024-01-01
    “…Gas chromatography-mass spectrometry analysis of the extracts showed compounds such as n-hexadecanoic acid, 9,12,15-octadecatrienoic acid (9.55%), and 2H-benzo[F]oxireno[2,3-E]benzofuran-8(9H)-one in the A. …”
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  12. 972

    Apolipoprotein C-I Levels Are Associated with the Urinary Protein/Urinary Creatinine Ratio in Pediatric Idiopathic Steroid-Sensitive Nephrotic Syndrome: A Case Control Study by Jun Odaka, Takahiro Kanai, Takane Ito, Takashi Saito, Jun Aoyagi, Hiroyuki Betsui, Takanori Yamagata

    Published 2017-01-01
    “…In the present study, we analyzed serum proteins using mass spectrometry (MS) to identify proteins associated with the pathophysiology of pediatric ISSNS. …”
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  13. 973

    Simultaneous Determination of Three Active Forms of Vitamin B12 In Situ Produced During Fermentation by LC-MS/MS by Zhihao Fan, Yajie Li, Xia Fan, Pei Wang, Runqiang Yang, Chong Xie

    Published 2025-01-01
    “…Liquid chromatography–tandem mass spectrometry (LC-MS/MS) is advantageous for analyzing trace substances in food due to its high sensitivity. …”
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  14. 974

    Systemic Proteomic Analysis Reveals Distinct Exosomal Protein Profiles in Rheumatoid Arthritis by Qiu Qin, Ronghua Song, Peng Du, Chaoqun Gao, Qiuming Yao, Jin-an Zhang

    Published 2021-01-01
    “…Totally, 12 specimens of plasma from 6 RA patients and 6 age- and gender-matched controls from the Chinese population were obtained for nanoscale liquid chromatography coupled to tandem mass spectrometry (nano-LC-MS/MS) analysis to identify exosomal profiles. …”
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  15. 975

    Potential of Co(II) and Cd(II) chelates of N′-(3-fluorobenzoyl)benzo[d]thiazole-2-carbohydrazide: Structural aspects, binding interactions, biological and molecular docking studies... by K. Srilaxmi, B. Sireesha

    Published 2025-01-01
    “…N′-(3-fluorobenzoyl)benzo[d]thiazole-2-carbohydrazide (MFBBTCH, HL) and its chelates with Co(II) and Cd(II) have been synthesized and characterized by elemental analyses, liquid chromatography-mass spectrometry (LC-MS), Fourier Transform Infrared Spectroscopy (FT-IR), ultra-violet visible (UV–vis), nuclear magnetic resonance (NMR) spectroscopy, thermogravimetric analysis (TGA) and conductivity measurements. …”
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  16. 976

    Xanthohumol and echinocystic acid induces PSTVd tolerance in tomato by Wenkun Tang, Zhichao Tang, Haiyi Liu, Jinbiao Lu, Qianyun Du, Huan Tian, Jingwei Li

    Published 2024-06-01
    “…The platform of liquid chromatography‐mass spectrometry detected 158 or 123 differential regulated metabolites in modes of positive ion or negative ion. …”
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    Article
  17. 977

    Effects of Super Nutritional Hepatic Copper Accumulation on Hepatocyte Health and Oxidative Stress in Dairy Cows by Jaimie M. Strickland, Doug Lyman, Lorraine M. Sordillo, Thomas H. Herdt, John P. Buchweitz

    Published 2019-01-01
    “…Liver samples were analyzed for copper using inductively coupled plasma mass spectrometry and crude fat using liquid-liquid extraction and gravimetry. …”
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  18. 978

    Evaluation of Skin Irritation and Acute and Subacute Oral Toxicity of Lavandula angustifolia Essential Oils in Rabbit and Mice by Awol Mekonnen, Solomon Tesfaye, Selam G. Christos, Kassahun Dires, Tizazu Zenebe, Nigus Zegeye, Yoseph Shiferaw, Ermias Lulekal

    Published 2019-01-01
    “…L. angustifolia essential oil was analyzed using gas chromatography-mass spectrometry methods and showed predominance of Eucalyptol (52.36%), Camphor (11.91%), gamma-terpinene (8.775%) and endoborneol (7.585%). …”
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  19. 979

    Hepatitis B virus hijacks MRE11-RAD50-NBS1 complex to form its minichromosome. by Kaitao Zhao, Jingjing Wang, Zichen Wang, Mengfei Wang, Chen Li, Zaichao Xu, Qiong Zhan, Fangteng Guo, Xiaoming Cheng, Yuchen Xia

    Published 2025-01-01
    “…To dissect the biogenesis of cccDNA, we took advantage of an in vitro rcDNA repair system to precipitate host factors interacting with rcDNA and identified co-precipitated proteins by mass spectrometry. Results revealed the MRE11-RAD50-NBS1 (MRN) complex as a potential factor. …”
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  20. 980

    Investigation of Borrow Pit TEA28 BP3, Fenstanton, Cambridgeshire, UK by W.A. Boismier, E. Allison, C. Ardis, R. Banerjea, C.R. Batchelor, P. Dark, K. Dudgeon, C.P. Green, E. Henderson, J. Ladocha, J. Weinstock, D.S. Young, J.-L. Schwenninger

    Published 2024-12-01
    “…Samples were also taken for optically stimulated luminescence dating (OSL) and accelerator mass spectrometry radiocarbon dating (AMS). Vertebrate remains and a very small assemblage of seven lithic artefacts were also collected from some of them. …”
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    Article