Results 1 to 10 of about 87,376 (182)

A Controlled System for Parahydrogen Hyperpolarization Experiments [PDF]

open access: yesMolecules
Parahydrogen-induced hyperpolarization (PHIP), introduced nearly four decades ago, provides an elegant solution to one of the fundamental limitations of nuclear magnetic resonance (NMR)—its notoriously low sensitivity.
Lorenzo Franco   +6 more
doaj   +2 more sources

Formate Metabolism in Shigella flexneri and Its Effect on HeLa Cells at Different Stages during the Infectious Process

open access: yesMicrobiology Spectrum, 2023
Shigellosis caused by Shigella is one of the most important foodborne illnesses in global health, but little is known about the metabolic cross talk between this bacterial pathogen and its host cells during the different stages of the infection process ...
Ke-Chuan Wang   +3 more
doaj   +1 more source

Hyperpolarized 13C NMR for longitudinal in-cell metabolism using a mobile 3D cell culture system

open access: yesJournal of Magnetic Resonance Open, 2023
Hyperpolarization with the dissolution dynamic nuclear polarization (dDNP) technique yields > 10,000-fold signal increases for NMR-active nuclei (e.g. 13C).
T.B.W. Mathiassen   +7 more
doaj   +1 more source

Hyperpolarized Carbon-13 MRI in Breast Cancer

open access: yesDiagnostics, 2023
One of the hallmarks of cancer is metabolic reprogramming, including high levels of aerobic glycolysis (the Warburg effect). Pyruvate is a product of glucose metabolism, and 13C-MR imaging of the metabolism of hyperpolarized (HP) [1-13C]pyruvate (HP 13C ...
Ramona Woitek, Kevin M. Brindle
doaj   +1 more source

Identification and Characterization of Novel Proteins from Arizona Bark Scorpion Venom That Inhibit Nav1.8, a Voltage-Gated Sodium Channel Regulator of Pain Signaling

open access: yesToxins, 2021
The voltage-gated sodium channel Nav1.8 is linked to neuropathic and inflammatory pain, highlighting the potential to serve as a drug target. However, the biophysical mechanisms that regulate Nav1.8 activation and inactivation gating are not completely ...
Tarek Mohamed Abd El-Aziz   +11 more
doaj   +1 more source

Transportable hyperpolarized metabolites [PDF]

open access: yesNature Communications, 2017
Abstract Nuclear spin hyperpolarization of 13 C-labelled metabolites by dissolution dynamic nuclear polarization can enhance the NMR signals of metabolites by several orders of magnitude, which has enabled in vivo metabolic imaging by ...
Ji, Xiao   +8 more
openaire   +5 more sources

Hyperpolarized para-Ethanol [PDF]

open access: yesThe Journal of Physical Chemistry B, 2015
We show that an imbalance between the populations of singlet (S) and triplet (T) states in pairs of magnetically equivalent spins can be generated by dissolution dynamic nudear polarization: In partly deuterated ethanol ((CD3CH2OD)-C-13), this T/S imbalance can be transferred by cross-relaxation to observable, enhanced signals of protons and coupled C ...
Mammoli, Daniele   +6 more
openaire   +4 more sources

Electrical Pacing of Cardiac Tissue Including Potassium Inward Rectification. [PDF]

open access: yesPLoS ONE, 2015
In this study cardiac tissue is stimulated electrically through a small unipolar electrode. Numerical simulations predict that around an electrode are adjacent regions of depolarization and hyperpolarization.
Suran Galappaththige, Bradley J Roth
doaj   +1 more source

Non-Invasive Analysis of Human Liver Metabolism by Magnetic Resonance Spectroscopy

open access: yesMetabolites, 2021
The liver is a key node of whole-body nutrient and fuel metabolism and is also the principal site for detoxification of xenobiotic compounds. As such, hepatic metabolite concentrations and/or turnover rates inform on the status of both hepatic and ...
John G. Jones
doaj   +1 more source

Magnetic Resonance Imaging and Spectroscopy Methods to Study Hepatic Glucose Metabolism and Their Applications in the Healthy and Diabetic Liver

open access: yesMetabolites, 2022
The liver plays an important role in whole-body glucose homeostasis by taking up glucose from and releasing glucose into the blood circulation. In the postprandial state, excess glucose in the blood circulation is stored in hepatocytes as glycogen.
Ayhan Gursan, Jeanine J. Prompers
doaj   +1 more source

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