نتایج جستجو برای: supported oxidants
تعداد نتایج: 201800 فیلتر نتایج به سال:
introduction: myocardial infarction (mi) is associated with increased oxidative stress and reduced antioxidants. some studies have shown that exercise training increases the serum level antioxidants. therefore, this study investigated the effect of rehabilitation training on antioxidant status in patients with myocardial infarction. materials and methods: in this study, 20 patients with myocard...
The colonic lumen is likely to contain oxidants derived from unabsorbed dietary materials including transition metals, rancid fat, drugs and bacterial metabolites. The present study looks at the effect of luminal exposure of different oxidants on colonic mucosal lipid peroxidation and absorptive function. All the oxidants tested induced fluid and electrolyte secretion and indomethacin, a prosta...
A synthetic procedure, catalysed by Ir(ppy)3 under visible-light irradiation, for the chemodivergent synthesis of 2,3-dihydrofurans (3) or ?,?-unsaturated ketones (7) starting from ?-halo (1) and alkenes (2) has been developed. The mild reaction conditions redox-neutral nature process make it particularly sustainable avoiding use both sacrificial reactants stoichiometric strong oxidants. Carefu...
Introduction Aerobic catalytic oxidation is much more environmentally friendly than oxidation using stoichiometric oxidants. The Pd(OAc)2/pyridine system is active for the catalytic oxidation of primary and secondary alcohols to aldehydes and ketones, which are valuable for fine chemicals synthesis. Pyridine stabilizes the monomeric Pd complex and promotes its aerobic reoxidation to Pd prior to...
Sudden cardiac death (SCD) refers to death after an unexpected sudden cardiac arrest in a patient with or without known structural heart disease. The incidence of SCD in the United States ranges from 300 000 to 460 000 events per year, depending on the criteria for SCD used for surveillance. SCD results from a complex interaction between preexisting cardiac substrates, either structural or gene...
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