V. Mišík

Publications72
h-index25
Citations1,751
Highly Influential Citations32
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Free Radical Intermediates in Sonodynamic Therapy
  • V. Mišík, P. Riesz
  • Chemistry, Medicine
    Annals of the New York Academy of Sciences
  • 1 January 2000
TLDR
Sonodynamic therapy appears to be a promising modality for cancer treatment since ultrasound can penetrate deep within the tissue and can be focused in a small region of tumor to chemically activate relatively non‐toxic molecules thus minimizing undesirable side effects.
Inhibition of rat and human cytochrome P4502E1 catalytic activity and reactive oxygen radical formation by nitric oxide.
TLDR
Results indicate that NO inhibits CYP2E1 catalytic activity and generation of reactive radical intermediates, which may prevent toxicity of agents which require bioactivation by P450 isoforms such as CYP 2E1 and ingeneration of reactive intermediates by CYP1E1.
The potential pitfalls of using 1,1-diphenyl-2-picrylhydrazyl to characterize antioxidants in mixed water solvents
TLDR
Characteristics of the most common antioxidants were determined in ethanol or its 50% (v/v) aqueous solution, and two forms of DPPH were identified: at higher ethanol ratios a quintet spectrum characteristic of solutions, and at lower ratios, a singlet spectrum typical for solid D PPH, were found.
Detection of alkoxyl and carbon-centered free radicals in coronary sinus blood from patients undergoing elective cardioplegia.
TLDR
It is demonstrated that postcardioplegia free radical production is detectable in coronary sinus blood using an ex vivo spin-trapping technique and that the extent of formation may be related to the severity of ischemia.
Magnesium-deficiency potentiates free radical production associated with postischemic injury to rat hearts: vitamin E affords protection.
TLDR
It is suggested that magnesium deficiency predisposes postischemic hearts to enhanced oxidative injury and functional loss, and that antioxidants may offer significant protection against the pro-oxidant influence(s) of magnesium deficiency.
Lipid peroxidation of phosphatidylcholine liposomes depressed by the calcium channel blockers nifedipine and verapamil and by the antiarrhythmic-antihypoxic drug stobadine.
TLDR
The obtained results suggest that some of the beneficial effects of the studied drugs can be mediated in disease by their ability to scavenge free radicals and by their protective effect on lipid peroxidation.
Lipoxygenase inhibition and antioxidant properties of protoberberine and aporphine alkaloids isolated from Mahonia aquifolium.
TLDR
Data suggest that the mechanism of lipoxygenase inhibition by these alkaloids may be linked to the inhibition of lipid hydroperoxide substrate accumulation and contribute to the therapeutic effect of M. aquifolium extracts in the treatment of psoriasis.
Lipoxygenase inhibition and antioxidant properties of bisbenzylisoqunoline alkaloids isolated from Mahonia aquifolium.
TLDR
The data suggest that in the mechanism of lipoxygenase inhibition by these alkaloids, inhibition of lipid peroxide substrate accumulation, either by direct reaction with peroxide or by scavenging or lipid-derived radicals, may play a role.
Redox intermediates of flavonoids and caffeic acid esters from propolis: an EPR spectroscopy and cyclic voltammetry study.
TLDR
Comparison with earlier data revealed that flavonoids, 1-4, and caffeic acid ester 8 with lower oxidation potentials showed the maximal lipid antioxidant activity, whereas those with higher potentials (5, 6, 7, and 9) are less active.
Increased Cytotoxicity of 3-Morpholinosydnonimine to HepG2 Cells in the Presence of Superoxide Dismutase
TLDR
The results suggest that the potentiation of SIN-1 toxicity by SOD is due to enhanced production of H2O2, followed by site-specific damage of critical cellular sites by a transition metal-catalyzed reaction.
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