R. Kukreja

Publications316
h-index62
Citations11,860
Highly Influential Citations323
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Phosphodiesterase-5 Inhibitor Sildenafil Preconditions Adult Cardiac Myocytes against Necrosis and Apoptosis
We investigated the effect of sildenafil in protection against necrosis or apoptosis in cardiomyocytes. Adult mouse ventricular myocytes were treated with sildenafil (1 or 10 μm) for 1 h before 40… Expand
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Pharmacological preconditioning with sildenafil: Basic mechanisms and clinical implications.
The phosphodiesterase type-5 (PDE5) inhibitor, sildenafil, is the first drug developed for treatment of erectile dysfunction in patients. Experimental data in animals show that sildenafil has a… Expand
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Rapamycin confers preconditioning-like protection against ischemia-reperfusion injury in isolated mouse heart and cardiomyocytes.
Rapamycin (sirolimus) is an antibiotic that inhibits protein synthesis through mammalian target of rapamycin (mTOR) signaling and is used as an immunosuppressant in the treatment of organ rejection… Expand
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HIF-1 activation attenuates postischemic myocardial injury: role for heme oxygenase-1 in modulating microvascular chemokine generation.
The CXC chemokine IL-8, which promotes adhesion, activation, and transmigration of polymorphonuclear neutrophils (PMN), has been associated with production of tissue injury in reperfused myocardium.… Expand
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The oxygen free radical system: from equations through membrane-protein interactions to cardiovascular injury and protection.
Highly toxic oxygen radicals and their metabolites have been implicated in the pathogenesis of ischaemia/reperfusion injury. These reactive oxygen species include the superoxide anion, hydrogen… Expand
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Cardioprotection with phosphodiesterase-5 inhibition--a novel preconditioning strategy.
Phosphodiesterase type-5 (PDE-5) inhibitors including sildenafil, vardenafil and tadalafil are a new class of vasoactive drugs that have been developed for treatment of erectile dysfunction in… Expand
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Mitochondrial-targeted Signal Transducer and Activator of Transcription 3 (STAT3) Protects against Ischemia-induced Changes in the Electron Transport Chain and the Generation of Reactive Oxygen…
Expression of the STAT3 transcription factor in the heart is cardioprotective and decreases the levels of reactive oxygen species. Recent studies indicate that a pool of STAT3 resides in the… Expand
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Cobalt chloride induces delayed cardiac preconditioning in mice through selective activation of HIF-1alpha and AP-1 and iNOS signaling.
Acute systemic hypoxia induces delayed cardioprotection against ischemia (I)-reperfusion (R) injury via inducible nitric oxide synthase (iNOS)-dependent mechanism. Because CoCl2 is known to elicit… Expand
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PGH Synthase and Lipoxygenase Generate Superoxide in the Presence of NADH or NADPH
Purified PGH synthase when acting on arachidonic acid in the presence of reduced nicotinamide-adenine dinucleotide or reduced nicotinamide-adenine dinucleotide 3'-phosphate generated superoxide in… Expand
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Sildenafil (Viagra) induces powerful cardioprotective effect via opening of mitochondrial K(ATP) channels in rabbits.
Sildenafil citrate (Viagra) is the pharmacological agent used to treat erectile dysfunction in men. Because this drug has a vasodilatory effect, we hypothesized that such an action may induce a… Expand
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