Yoshitaka Iso

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The aim of this study was to determine whether intravenously administered multipotent stromal cells from human bone marrow (hMSCs) can improve cardiac function after myocardial infarction (MI) without long-term engraftment and therefore whether transitory paracrine effects or secreted factors are responsible for the benefit conferred. hMSCs were injected(More)
BACKGROUND Although cytokine elevation has been demonstrated in chronic heart failure, little attention has been focused on cytokine levels during the acute stage. We examined the changes of cytokine levels in patients with acutely decompensated heart failure to investigate their relationship with severity of heart failure. METHODS Patients with acutely(More)
Erythropoietin (EPO) has recently been shown to confer cardioprotective effects via angiogenesis and antiapoptosis. The administration of EPO after myocardial infarction (MI) reduces infarct size and improves cardiac function in small animals. The purpose of this study is to investigate the protective effects of EPO in porcine MI. Each animal in the EPO(More)
BACKGROUND Erythropoietin (EPO) has been found to have anti-apoptotic and tissue protective effects on the myocardium. The aim of the present pilot study was to observe the safety and efficacy of EPO administration for patients with acute myocardial infarction (AMI). METHODS AND RESULTS Patients admitted with AMI had all undergone successful percutaneous(More)
OBJECTIVE Recent studies have suggested that granulocyte colony-stimulating factor (G-CSF) may improve cardiac function after acute myocardial infarction (AMI) by accelerating angiogenesis or cardiomyogenesis, but negative results and side effect of G-CSF have also been reported. However, no previous studies have used large animal models of(More)
BACKGROUND Stent design causes the differences of restenosis rate, but the morphological differences after the various types of stent implantation have not been clarified. DESIGN Seven types of stents were implanted in pig coronary arteries to clarify how the mechanism of restenosis differs with coil stents and tube stents. METHODS The left anterior(More)
We have investigated the clinical significance of small dense low-density lipoprotein-cholesterol (sd-LDL-C) concentrations in coronary heart disease (CHD). We measured the LDL size by gradient gel electrophoresis and quantified sd-LDL-C concentrations by a newly developed rapid assay using heparin-magnesium precipitation in 225 consecutive CHD patients(More)
Human salusin-α and -β are related peptides of 28 and 20 amino acids, respectively, produced from the same precursor, prosalusin. Salusin-β exerts more potent mitogenic effects on human vascular smooth muscle cells (VSMCs) and fibroblasts than salusin-α. Human macrophage foam cell formation is significantly stimulated by salusin-β, but suppressed by(More)
Few reports have examined the effects of adult bone marrow multipotent stromal cells (MSCs) on large animals, and no useful method has been established for MSC implantation. In this study, we investigate the effects of MSC infusion from the coronary vein in a swine model of chronic myocardial infarction (MI). MI was induced in domestic swine by placing(More)
BACKGROUND The small dense low-density lipoprotein (LDL) phenotype (pattern B), high concentrations of remnant-like particles (RLPs), and postprandial lipemia are newly recognized risk factors for coronary heart disease (CHD). However, the associations of these lipoprotein abnormalities remain unclear. The aim of this study was to investigate the(More)