Results 71 to 80 of about 266,483 (401)

Adiponectin protects against paraquat-induced lung injury by attenuating oxidative/nitrative stress. [PDF]

open access: yes, 2014
The specific mechanisms underlying paraquat (PQ)-induced lung injury remain unknown, which limits understanding of its cytotoxic potential. Although oxidative stress has been established as an important mechanism underlying PQ toxicity, multiple ...
Cao, Yu   +9 more
core   +2 more sources

Nonenzymatic Formation of Guanosine 3′ : 5′-Monophosphate from Guanosine Triphosphate

open access: yesJournal of Biological Chemistry, 1974
Abstract We observed the nonenzymatic formation of guanosine 3' : 5'-monophosphate (cyclic GMP) from GTP. The reaction was dependent upon heat and was accelerated by divalent cations and creatine phosphate. The formation of cyclic GMP was greater with increased incubation time, temperature, GTP concentration, and pH. All of the divalent cations tested (
Ferid Murad, Hiroshi Kimura
openaire   +3 more sources

The rapidly growing landscape of RAS inhibitors: from selective allele blockade to broad inhibition strategies

open access: yesMolecular Oncology, EarlyView.
RAS‐targeted therapies have become a clinical reality. Although promising results in patients have been achieved, there are still challenges ahead such as coping with drug resistance. Here we summarize selected RAS inhibitors targeting either individual KRAS mutant isoforms (KRASG12C, KRASG12D, KRASG12V) or exhibiting a wider inhibitory spectrum ...
Matthias Drosten, Mariano Barbacid
wiley   +1 more source

A guide to reactive oxygen species in tumour hypoxia: measurement and therapeutic implications

open access: yesMolecular Oncology, EarlyView.
Hypoxia reshapes tumour redox landscapes by altering compartmental ROS production (mitochondria, NOX, ER, peroxisomes). Accurate interpretation requires oxygen‐contextualised measurement (live biosensors, chemical probes, EPR, LC–MS) and awareness of artefacts (reoxygenation, probe specificity).
Lina Hacker   +3 more
wiley   +1 more source

Salmonella Reprograms Nucleotide Metabolism in Its Adaptation to Nitrosative Stress

open access: yesmBio, 2018
The adaptations that protect pathogenic microorganisms against the cytotoxicity of nitric oxide (NO) engendered in the immune response are incompletely understood.
Liam F. Fitzsimmons   +4 more
doaj   +1 more source

The T2238C human atrial natriuretic peptide molecular variant and the risk of cardiovascular diseases [PDF]

open access: yes, 2018
Atrial natriuretic peptide (ANP) is a cardiac hormone which plays important functions to maintain cardio-renal homeostasis. The peptide structure is highly conserved among species. However, a few gene variants are known to fall within the human ANP gene.
Bianchi, Franca   +5 more
core   +2 more sources

The presence of guanosine 5'-diphospho-5'-guanosine and guanosine 5'-triphospho-5'-adenosine in brine shrimp embryos.

open access: yesJournal of Biological Chemistry, 1978
Acid-soluble extracts of dormant embryos of the brine shrimp, Artemia salina, contain small amounts of two previously undescribed dinucleotides which we have identified to be guanosine 5'-diphospho-5'-guanosine and guanosine 5'-triphospho-5'-adenosine.
S J Gilmour, A H Warner
openaire   +3 more sources

Short‐term actions of epigalocatechin‐3‐gallate in the liver: a mechanistic insight into hypoglycemic and potential toxic effects

open access: yesFEBS Open Bio, EarlyView.
Epigallocatechin‐3‐gallate (EGCG) acutely inhibited gluconeogenesis and enhanced glycolysis, glycogenolysis, and fatty acid oxidation in perfused rat livers. Mechanistic assays revealed mitochondrial uncoupling, inhibition of pyruvate carboxylation and glucose‐6‐phosphatase, shift of NADH/NAD+ ratios toward oxidation, and loss of membrane integrity ...
Carla Indianara Bonetti   +8 more
wiley   +1 more source

All-small-molecule supramolecular hydrogels assembled from guanosine 5′-monophosphate disodium salt and tobramycin for the treatment of bacterial keratitis

open access: yesBioactive Materials, 2022
Bacterial keratitis is the most common corneal infection which may lead to blindness, and seriously threatened the human visual health worldwide. Clinical treatment with antibiotic eye drops formulation usually falls in low bioavailability and poor ...
Xuejing Cheng   +5 more
doaj   +1 more source

Differential chemosensitivity to antifolate drugs between RAS and BRAF melanoma cells. [PDF]

open access: yes, 2014
BACKGROUND: The importance of the genetic background of cancer cells for the individual susceptibility to cancer treatments is increasingly apparent.
Arozarena, Imanol   +5 more
core   +2 more sources

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