Results 31 to 40 of about 100,704 (351)

Explicit kinetic heterogeneity: mechanistic models for interpretation of labeling data of heterogeneous cell populations [PDF]

, 2009
Estimation of division and death rates of lymphocytes in different conditions is vital for quantitative understanding of the immune system. Deuterium, in the form of deuterated glucose or heavy water, can be used to measure rates of proliferation and ...
Angela R. McLean, B Asquith, B Asquith, D Homann, DC Macallan, DM Bates, E Parretta, H Mohri, J Borghans, José A. M. Borghans, K Murali-Krishna, KP Burnham, M Davenport, M Hellerstein, M Hellerstein, N Vrisekoop, R Antia, R De Boer, R Hogg, R Neese, R Ribeiro, R Ribeiro, Rob J. De Boer, S Bonhoeffer, V Ganusov, Vitaly V. Ganusov, Z Grossman, Z Grossman   +27 more
core   +9 more sources

Ultra-sensitive isotope probing to quantify activity and substrate assimilation in microbiomes

Microbiome, 2023
Background Stable isotope probing (SIP) approaches are a critical tool in microbiome research to determine associations between species and substrates, as well as the activity of species. The application of these approaches ranges from studying microbial
Manuel Kleiner, Angela Kouris, Marlene Violette, Grace D’Angelo, Yihua Liu, Abigail Korenek, Nikola Tolić, Timo Sachsenberg, Janine McCalder, Mary S. Lipton, Marc Strous   +10 more
doaj   +1 more source

Potential uptake of dissolved organic matter by seagrasses and macroalgae [PDF]

, 2011
Dissolved organic nitrogen (DON) acts as a large reservoir of fixed nitrogen. Whereas DON utilization is common in the microbial community, little is known about utilization by macrophytes.
Bouma, Tjeerd J., Brun Murillo, Fernando Guillermo, Hendriks, Iris E., Lara, Miguel, Middelburg, Jack J., Morris, Edward P., Peralta González, Gloria, Soetaert, Karline, Van Engeland, Tom   +8 more
core   +5 more sources

Synthesis of isotopically labeled epothilones [PDF]

Journal of Labelled Compounds and Radiopharmaceuticals, 2013
The epothilones, including epothilones B and D, are macrocyclic lactones, which have potent cytotoxicities and promote the polymerization of tubulin to mictotubules by binding to and stabilizing the tubulin polymer. They have a very similar mechanism of action to paclitaxel (Taxol®).
Thota, Ganesh, Peggy J, Brodie, Abhijit, Banerjee, Susan, Bane, David G I, Kingston   +4 more
openaire   +2 more sources

Real-time quantitative analysis of volatile products generated during solid-state polypropylene thermal oxidation [PDF]

, 2013
Analysis of volatile organic compounds (VOCs) during PP thermal oxidation under three oxygen partial pressures (0%, 21% and 100% of atmospheric pressure) at 140 C was performed by proton transfer reaction coupled with Fourier transform ion cyclotron ...
COLIN, Xavier, DESNOUX, Eric, FRANCOIS-HEUDE, Alexandre, HENINGER, Michel, LEPROVOST, Julien, MESTDAGH, Helene, RICHAUD, Emmanuel   +6 more
core   +4 more sources

Human neutrophil kinetics: modeling of stable isotope labeling data supports short blood neutrophil half-lives. [PDF]

, 2016
Human neutrophils have traditionally been thought to have a short half-life in blood; estimates vary from 4-18 hours. This dogma was recently challenged by stable isotope labeling studies with heavy water which yielded estimates in excess of 3 days.
Akbulut, Arafa Salam, Asquith, Athens, Becca Asquith, Boggs, Borregaard, Busch, Busch, Cartwright, Chatta, Christoph Niederalt, Colvin, Cronkite, Dancey, Davis, Derek Macallan, Donohue, Ehmann, Elghetany, Fliedner, Friberg, Friberg, Furze, Galbraith, Harrison, Hsieh, Hu, ICRP, ICRP, Jilma, Julio Lahoz-Beneytez, Lambert, Li, Lund-Johansen, Macallan, Macallan, Marjet Elemans, Michael Block, Mishler, Neese, Osgood, Painter, Patt, Pegg, Peters, Pillay, Pillay, Price, Price, Quartino, Rankin, Raya Ahmed, Rocha, Saverymuttu, Soetaert, Suratt, Tak, Terstappen, Vrisekoop, Yan Zhang, Yanokura   +61 more
core   +1 more source

zmm28 transgenic maize increases both N uptake- and N utilization-efficiencies

Communications Biology, 2022
Isotope 15N labeling demonstrates that zmm28 transgenic maize have an improved N uptake during late-vegetative stages inducing N storage in lower leaves of the canopy and, thus, N uptake efficiency relative to wild-type maize.
Javier A. Fernandez, Jeffrey E. Habben, Jeffrey R. Schussler, Tim Masek, Ben Weers, James Bing, Ignacio A. Ciampitti   +6 more
doaj   +1 more source

Application of traditional and reverse labeling approaches to assess dietary bioavailability of metals in biofilms

Environment International
The accuracy of stable isotope tracing techniques, traditional and reverse labeling, in evaluating metal bioavailability remains uncertain. This study employed pulse-chase feeding combined with multi-heavy-metal stable isotope labeling to compare the ...
Yunuo Duan, Shiqi Zhu, Yuxuan Song, Dan Zhu, Mei Zhong, Liqiang Chen, Xia Luo   +6 more
doaj   +1 more source

Multiplexed Analysis of Cage and Cage Free Chicken Egg Fatty Acids Using Stable Isotope Labeling and Mass Spectrometry

Molecules, 2013
Binary stable isotope labeling couple with LC-ESI-MS has been used as a powerful non-targeted approach for the relative quantification of lipids, amino acids, and many other important metabolite classes.
Richard G. Torde, Andrew J. Therrien, Michael R. Shortreed, Lloyd M. Smith, Shane M. Lamos   +4 more
doaj   +1 more source

Determination and Analysis of 16 Mycotoxins in Medicinal and Edible Traditional Chinese Medicine

Shipin gongye ke-ji, 2022
Objective: An analytical method was established for the determination of 16 mycotoxins in traditional Chinese medicines (TCM) by isotope labeling-ultra performance liquid chromatography tandem mass spectrometry (UPLC-MS/MS), and 483 medicinal and edible ...
Fenghua LI, Zuohua LI, Li YANG, Yongchun YUAN, Suxiang WANG, Aixiang WANG, Wei LI, Fengjia ZHENG   +7 more
doaj   +1 more source