Effect of cystamine on sperm and antioxidant parameters of ram semen stored at 4 °C for 50 hours [PDF]
Physical and chemical changes caused by oxidative stress in the spermatozoa membrane can reduce spermatozoa function and even lead to death. Cystamine (NH2-CH2-CH2-SH, β-mercaptoethylamine) is a natural substance that modulates the endocrine and ...
A., Turki Jali+9 more
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Mechanisms for the Cytotoxicity of Cysteamine [PDF]
The major aim of this study was to quantitatively assess the contribution of H2O2 generation to the cytotoxicity induced by cysteamine. Cysteamine produces H2O2 at levels that correlate with its toxicity between 23 and 160 microM. A maximum of 6.9 microM H2O2 is generated by 625 microM cysteamine.
David A. Lawrence, Thomas M. Jeitner
openaire +3 more sources
Restoration of CFTR function in patients with cystic fibrosis carrying the F508del-CFTR mutation [PDF]
Restoration of BECN1/Beclin 1-dependent autophagy and depletion of SQSTM1/p62 by genetic manipulation or autophagy-stimulatory proteostasis regulators, such as cystamine, have positive effects on mouse models of human cystic fibrosis (CF). These measures
Amin R+39 more
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Studies on the acylation of 4-(2-aminoethylthio)-7-nitrobenzofurazan: the role of bases in promoting the formation of fluorescent S-acyl derivatives through S–N Smiles rearrangement [PDF]
The acylation of 4-(2-aminoethylthio)-7-nitrobenzofurazan has been investigated. Depending on the use of the base, a competitive Smiles rearrangement occurs during the acylation step leading to the formation of N-acyl and/or fluorescent S-acyl ...
Ah-Kow+27 more
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The redox transformations and nucleophilic replacements as possible metabolic reactions of the drug “Triazaverin”. The chemical modeling of the metabolic processes [PDF]
As a model of metabolic transformations of antiviral drug “Triazaverin” and its analogues‑2-alkylthio‑6-nitro‑1,2,4-triazolo[5,1-c][1,2,4]triazine‑7-ones 1a-d examined the oxidation of alkylthio groups to the corresponding sulfoxides 2a-d and sulfones 3a-
Medvedeva, N. P.+3 more
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Remotely triggered scaffolds for controlled release of pharmaceuticals [PDF]
Fe3O4-Au hybrid nanoparticles (HNPs) have shown increasing potential for biomedical applications such as image guided stimuli responsive drug delivery.
Hoskins, Clare+3 more
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The specificity of cysteamine oxygenase
Oxidation of cysteamine to hypotaurine is catalyzed by cysteamine oxygenase (EC 1.13.11.19), a non-heme iron enzyme of large distribution [l-3] . A similar oxidation of cysteine to cysteine sulfinic acid has been reported to require a different oxygenase [4,.5]. Specificity of cysteamine oxygenase has been studied earlier in this laboratory by assaying
Federici G+5 more
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Metabolomic analysis of human oral cancer cells with adenylate kinase 2 or phosphorylate glycerol kinase 1 inhibition. [PDF]
The purpose of this study was to use liquid chromatography-mass spectrometry (LC-MS) with XCMS for a quantitative metabolomic analysis of UM1 and UM2 oral cancer cells after knockdown of metabolic enzyme adenylate kinase 2 (AK2) or phosphorylate glycerol
Cheng, Siliangyu+6 more
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Controlled Synthesis of Silver Nanoparticles Using Double Reductants and Its Voltammetric Characteristics Study [PDF]
Constructing robust silver nanoparticles (AgNPs) with good shape and dispersibility is of particular interest in analytical applications. Herein, monodispersibility AgNPs with the average size of 20 nm have been successfully prepared via one-pot method ...
Duan, Yubo, Jiang, Xiaochun, Xu, Zhihua
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Cysteamine inhibits lysosomal oxidation of low density lipoprotein in human macrophages and reduces atherosclerosis in mice [PDF]
Background and aims: We have shown previously that low density lipoprotein (LDL) aggregated by vortexing is internalised by macrophages and oxidised by iron in lysosomes to form the advanced lipid/protein oxidation product ceroid.
Ahmad+73 more
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