Engineered heart tissue: a novel tool to study the ischemic changes of the heart in vitroRajesh G Katare
Department of Cardiovascular Control, Kochi Medical School, Nankoku, Japan
PLoS ONE 5:e9275. 2010
..Here, we demonstrate a novel function for the spontaneously contracting EHT as an experimental model in studying the acute ischemia-induced changes in vitro...
Chronic intermittent fasting improves the survival following large myocardial ischemia by activation of BDNF/VEGF/PI3K signaling pathwayRajesh G Katare
Department of Cardiovascular Control, Kochi Medical School, Nankoku, Kochi, Japan
J Mol Cell Cardiol 46:405-12. 2009
..Chronic intermittent fasting markedly improves the long-term survival after CHF by activation through its pro-angiogenic, anti-apoptotic and anti-remodeling effects...
Acetylcholine inhibits the hypoxia-induced reduction of connexin43 protein in rat cardiomyocytesYanan Zhang
Department of Clinical Laboratory, Kochi Medical School, Japan
J Pharmacol Sci 101:214-22. 2006
..These results suggest that ACh is responsible for restoring the decrease in the Cx43 protein level, resulting in functional activation of gap junctions...
New device for intraoperative graft assessment: HyperEye charge-coupled device camera systemTakemi Handa
Department of Surgery 2, Kochi Medical School, Nankoku, Kochi, 783 8505, Japan
Gen Thorac Cardiovasc Surg 58:68-77. 2010
..e., HyperEye technology), which can detect simultaneously color and near-infrared (NIR) rays from 380 to 1200 nm. Here, we demonstrate intraoperative graft assessment using the HyperEye system...
Differential regulation of TNF receptors by vagal nerve stimulation protects heart against acute ischemic injuryRajesh G Katare
Department of Cardiovascular Control, Kochi Medical School, Nankoku, Japan
J Mol Cell Cardiol 49:234-44. 2010
..VS and ACh protects the heart against acute ischemia or hypoxic injury by differentially regulating the TNF receptor subtypes...
Granulocyte colony-stimulating factor activates Wnt signal to sustain gap junction function through recruitment of beta-catenin and cadherinMasanori Kuwabara
Department of Medicine and Geriatrics, Kochi Medical School, Nankoku, Japan
FEBS Lett 581:4821-30. 2007
..Consequently, G-CSF suppressed ventricular arrhythmia induced by myocardial infarction. As a result, G-CSF could be used as a therapeutic tool for arrhythmia...
Nitric oxide stimulates vascular endothelial growth factor production in cardiomyocytes involved in angiogenesisMasanori Kuwabara
Department of Cardiovascular Control, Kochi Medical School, Nankoku, Japan
J Physiol Sci 56:95-101. 2006
..001, n = 5) and accelerated angiogenesis. CONCLUSION: Our results suggest that cardiomyocytes produce VEGF through a nonhypoxic HIF-1alpha induction pathway activated by NO, resulting in angiogenesis...
Anti-Alzheimer's drug, donepezil, markedly improves long-term survival after chronic heart failure in miceTakemi Handa
Department of Cardiovascular Control, Kochi Medical School, Nankoku, Japan
J Card Fail 15:805-11. 2009
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Efferent vagal nerve stimulation protects heart against ischemia-induced arrhythmias by preserving connexin43 proteinMotonori Ando
Department of Cardiovascular Control, Kochi Medical School, Nankoku, Kochi, Japan
Circulation 112:164-70. 2005
..Vagal nerve stimulation has been postulated to contribute to the antifibrillatory effect. Here, we suggest a novel mechanism for the antiarrhythmogenic properties of vagal stimulation during acute MI...
Vagal nerve stimulation prevents reperfusion injury through inhibition of opening of mitochondrial permeability transition pore independent of the bradycardiac effectRajesh G Katare
Department of Cardiovascular Control, Kochi Medical School, Nankoku, Kochi, Japan
J Thorac Cardiovasc Surg 137:223-31. 2009
..Here we demonstrate a novel therapeutic strategy against ischemia-reperfusion injury: vagally mediated prevention of reperfusion-induced opening of mitochondrial permeability transition pore...
Donepezil, an acetylcholinesterase inhibitor against Alzheimer's dementia, promotes angiogenesis in an ischemic hindlimb modelYoshihiko Kakinuma
Department of Cardiovascular Control, Kochi Medical School, Nankoku, Kochi 783 8505, Japan
J Mol Cell Cardiol 48:680-93. 2010
..The present study concludes that donepezil can act as a therapeutic tool to accelerate angiogenesis in cardiovascular disease patients...
A HIF-1alpha-related gene involved in cell protection from hypoxia by suppression of mitochondrial functionYoshihiko Kakinuma
Department of Cardiovascular Control, Kochi Medical School, Nankoku, Japan
FEBS Lett 582:332-40. 2008
..These findings suggest that AI is involved in suppressing mitochondrial function, thereby leading to cellular stress eradication and consequently to protection during hypoxia...
Acetylcholine from vagal stimulation protects cardiomyocytes against ischemia and hypoxia involving additive non-hypoxic induction of HIF-1alphaYoshihiko Kakinuma
Department of Cardiovascular Control, Kochi Medical School, Nankoku 783 8505, Japan
FEBS Lett 579:2111-8. 2005
..In acute myocardial ischemia, vagal nerve stimulation increased HIF-1alpha expression and reduced the infarct size. These results suggest that ACh and vagal stimulation protect cardiomyocytes through the PI3K/Akt/HIF-1alpha pathway...
Preliminary experience for the evaluation of the intraoperative graft patency with real color charge-coupled device camera system: an advanced device for simultaneous capturing of color and near-infrared images during coronary artery bypass graftTakemi Handa
Department of Cardiovascular Control, Kochi Medical School, Nankoku, Kochi 783 8505, Japan
Interact Cardiovasc Thorac Surg 9:150-4. 2009
..Our findings show that this device may become a standard intraoperative graft and perfusion assessment tool in coronary artery bypass graft (CABG)...