Results 281 to 290 of about 140,334 (356)

A reliable quantification of organophosphorus pesticides in brown rice samples for proficiency testing using Japanese official analytical method, QuEChERS, and modified QuEChERS combined with isotope dilution mass spectrometry. [PDF]

J Pestic Sci
Otake T, Nakamura K, Hirabayashi N, Watanabe T.   +3 more
europepmc   +1 more source

Differentiation of Plant and Animal‐Derived Cholesterol Using irm‐13C NMR and IRMS

Magnetic Resonance in Chemistry, EarlyView.
Determining and certifying the origin of ingredients, starting materials, and excipients used in manufactured goods like cosmetics and medicines can be difficult. In this report, we describe a robust approach for identifying the origin of cholesterol, a component of myriad consumer products using irm‐13C NMR and IRMS to differentiate plant versus ...
Anika M. Singh, Subir Chakraborty, Remington X. Poulin, R. Thomas Williamson   +3 more
wiley   +1 more source

Evaluation of uncertainty sources in the determination of testosterone in urine by calibration-based and isotope dilution quantification using ultra high performance liquid chromatography tandem mass spectrometry

, 2017
Jorge Pitarch-Motellón, A. Roig, Juan V. Sancho, María Ibáñez, Neus Fabregat-Cabello, Óscar J. Pozo, Rosa Ventura, J. Ignacio García Alonso, Pablo Rodríguez‐González, Adriana González‐Gago, Amaia Ereño Artabe, Peter Van Eenoo, Koen Deventer, Yvette Dehnes, Sebastian Rzeppa   +14 more
openalex   +2 more sources

Determination of ileal endogenous nitrogen losses and true ileal nitrogen digestibility during non-steady-state conditions of the ¹⁵N-isotope dilution technique. [PDF]

Arch Anim Nutr
Steendam CAC, Verstegen MWA, Hendriks WH.   +2 more
europepmc   +1 more source

Urban‐driven homogenization of aquatic subsidy size structure cascades to riparian predator communities

Oikos, EarlyView.
The export of emergent aquatic insects is a critical energy subsidy for terrestrial food webs. While urbanization is known to alter stream communities, its effects on the size structure of these insect subsidies and the subsequent consequences for riparian predators remain poorly understood.
Charles Gagnon, Louis‐Philippe Beauchamp, Eric Harvey   +2 more
wiley   +1 more source

Determination of calcium, iron, and selenium in human serum by isotope dilution analysis using nitrogen microwave inductively coupled atmospheric pressure plasma mass spectrometry (MICAP-MS). [PDF]

Anal Bioanal Chem
You Z, Winckelmann A, Vogl J, Recknagel S, Abad C.   +4 more
europepmc   +1 more source

Proteomic Changes in Cancer Cell Lines as a Result of Bacterial Infection

PROTEOMICS, EarlyView.
ABSTRACT Bacterial infections have been implicated in shaping the tumor microenvironment (TME), but their effects on cancer cell proteomes remain unexplored. In this study, we analyzed proteomic changes in melanoma (A375) and ovarian cancer (OVCAR3) cell line models following infection with Staphylococcus aureus strain USA300 or Salmonella enterica ...
Bo Ren, Kenneth Weke, Darryl Hardie, Mariya I. Goncheva, Ted Hupp, Javier Antonio Alfaro, Helena Pětrošová, David R. Goodlett   +7 more
wiley   +1 more source

The N‐Glycome to Differentiate Mesenchymal Stem Cells Upon Chondrogenic Differentiation, Dedifferentiation, and Senescence

PROTEOMICS, EarlyView.
ABSTRACT Mesenchymal stem cells (MSCs) are adult stem cells able to self‐renewal or differentiation into different cell types, including chondrocytes. N‐Glycans are post‐translational modifications of glycoproteins that contribute to vital cell functions.
Houda Montacir, Karina Biskup, Michael Sittinger, Rudolf Tauber, Véronique Blanchard   +4 more
wiley   +1 more source

SPROUTS_DB: An Implemented Database of Contaminants for Extracellular Vesicle Proteomics Studies

PROTEOMICS, EarlyView.
ABSTRACT Current proteomics techniques allow rapid identification and quantification of proteins within any given biological source. However, LC–MS/MS proteomics is vulnerable to laboratory and sample‐associated contaminants. Therefore, accurate identification and annotation of such contaminants is crucial for development of reliable databases ...
Maria Gaetana Giovanna Pittalà, Loredana Leggio, Greta Paternò, Elena Giusto, Laura Civiero, Vincenzo Cunsolo, Silvia Vivarelli, Antonella Di Francesco, Emanuele Alpi, Nunzio Iraci, Rosaria Saletti   +10 more
wiley   +1 more source

Proteomic Profiling of Primary Hippocampal Neurons Reveals Noncanonical GFAP Expression and Metabolic Adaptations in Glia‐Free Culture

PROTEOMICS, EarlyView.
ABSTRACT Despite their widespread use as a research model, a comprehensive, quantitative proteomic profile of the cultured hippocampal neurons has remained unexplored. Here, we provide the first global proteomic characterization of primary murine hippocampal neurons cultured for 14 days under near‐physiological glucose conditions (2.5 mM).
Dominika Drulis‐Fajdasz, Kinga Gostomska‐Pampuch, Natalia Pudełko‐Malik, Mariusz Fleszar, Agnieszka Gizak, Jacek R. Wiśniewski, Dariusz Rakus   +6 more
wiley   +1 more source