Research Topics
Genomes and Genes | M YokoyamaSummaryAffiliation: Kobe University Country: Japan Publications
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Publications
Effects of eicosapentaenoic acid on cardiovascular events in Japanese patients with hypercholesterolemia: rationale, design, and baseline characteristics of the Japan EPA Lipid Intervention Study (JELIS)Mitsuhiro Yokoyama
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Am Heart J 146:613-20. 2003....
Role of the vascular NADH/NADPH oxidase system in atherosclerosisM Yokoyama
First Department of Internal Medicine, Kobe University School of Medicine, Japan
Ann N Y Acad Sci 902:241-7; discussion 247-8. 2000..These observations suggest that oxidative stress, mainly via the NADH/NADPH oxidase system in the vasculature, may play an important role in the pathogenesis of atherosclerosis...
Effects of eicosapentaenoic acid on major coronary events in hypercholesterolaemic patients (JELIS): a randomised open-label, blinded endpoint analysisMitsuhiro Yokoyama
Kobe University, Kobe, Japan
Lancet 369:1090-8. 2007..We aimed to test the hypothesis that long-term use of eicosapentaenoic acid (EPA) is effective for prevention of major coronary events in hypercholesterolaemic patients in Japan who consume a large amount of fish...
Lysophosphatidylcholine increases the secretion of matrix metalloproteinase 2 through the activation of NADH/NADPH oxidase in cultured aortic endothelial cellsN Inoue
First Department of Internal Medicine, School of Medicine, Kobe University, 7-5-2 Kusunoki-cho, Chuo-ku, 650-0017, Kobe, Japan
Atherosclerosis 155:45-52. 2001..Our findings suggest that LPC might activate the endothelial NADH/NADPH oxidase to enhance superoxide production, and it might, in turn, enhance MMP-2 induction...
Reduced hypoxic pulmonary vascular remodeling by nitric oxide from the endotheliumM Ozaki
First Department of Internal Medicine, Kobe University School of Medicine, Kobe, Japan
Hypertension 37:322-7. 2001....
Endothelial NO synthase overexpression inhibits lesion formation in mouse model of vascular remodelingS Kawashima
First Department of Internal Medicine, Kobe University School of Medicine, Kobe, Japan
Arterioscler Thromb Vasc Biol 21:201-7. 2001..Our data provide the evidence for the regulatory role of NO from the endothelium on vascular structure integrity...
A calcium channel blocker, benidipine, inhibits intimal thickening in the carotid artery of mice by increasing nitric oxide productionT Yamashita
First Department of Internal Medicine, Kobe University School of Medicine, Japan
J Hypertens 19:451-8. 2001..These results show the possibility of benidipine as a protective tool against vascular remodeling independent of its effect on blood pressure...
Role of endogenous nitric oxide generation in the regulation of vascular tone and reactivity in small vessels as investigated in transgenic mice using synchrotron radiation microangiographyT Yamashita
Division of Cardiovascular and Respiratory Medicine, Department of Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Nitric Oxide 5:494-503. 2001..SR microangiography allows us to evaluate the reactivity in small-sized vessels and appears to be a powerful tool for assessing the microvascular circulation in vivo...
TNF-alpha induces protein synthesis through PI3-kinase-Akt/PKB pathway in cardiac myocytesE Hiraoka
First Department of Internal Medicine, Kobe University School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe, 650-0017, Japan
Am J Physiol Heart Circ Physiol 280:H1861-8. 2001..These results indicate that activation of the PI3-kinase-Akt/PKB pathway plays an essential role in protein synthesis induced by TNF-alpha in cardiac myocytes...
Regulation of tight junction permeability and occludin phosphorylation by Rhoa-p160ROCK-dependent and -independent mechanismsT Hirase
First Department of Internal Medicine, Kobe University School of Medicine, 7 5 2 Kusunoki cho, Chuo Ku, Kobe 650 0017, Japan
J Biol Chem 276:10423-31. 2001..Thus, occludin is a target for receptor-initiated signaling events regulating its phosphorylation, and this phosphorylation may be a key regulator of tight junction permeability...
Anti-oxidative properties of fluvastatin, an HMG-CoA reductase inhibitor, contribute to prevention of atherosclerosis in cholesterol-fed rabbitsY Rikitake
The First Department of Internal Medicine, Kobe University School of Medicine, Kusunoki-cho, Chuo-ku, 650-0017, Kobe, Japan
Atherosclerosis 154:87-96. 2001..In conclusion, the potent anti-oxidative properties of fluvastatin in addition to its cholesterol-lowering activity appear to contribute to its anti-atherosclerotic effect in vivo...
Signaling mechanism underlying COX-2 induction by lysophosphatidylcholineY Rikitake
First Department of Internal Medicine, Kobe University School of Medicine, 7 5 1, Kusunoki cho, Chuo Ku, Kobe, 650 0017, Japan
Biochem Biophys Res Commun 281:1291-7. 2001..These results suggest that both p38 and ERK may function as upstream signaling pathways capable of activating CREB and ATF-1 with subsequent induction of cyclooxygenase-2 expression by lysophosphatidylcholine...
Effect of posture on bronchial reactivity to inhaled methacholine in patients with mitral valve stenosisY Nishimura
First Department of Internal Medicine, Kobe University School of Medicine, Japan
Chest 106:1391-5. 1994..We conclude that the bronchial hyperreactivity in MS is enhanced after the supine position for 2 h and that the supine posture may play an important role in the pathogenesis of cardiac asthma...
Expression of glutaredoxin in human coronary arteries: its potential role in antioxidant protection against atherosclerosisM Okuda
Division of Cardiovascular and Respiratory Medicine, Departments of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Arterioscler Thromb Vasc Biol 21:1483-7. 2001..These results suggest the possible involvement of thiol-disulfide oxidoreductases in antioxidant protection in human coronary arteries...
Dysfunction of endothelial nitric oxide synthase and atherosclerosisSeinosuke Kawashima
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7 5 1 Kusunoki cho Chuo ku Kobe, 650 0017, Japan
Arterioscler Thromb Vasc Biol 24:998-1005. 2004..An improved understanding of tissue BH4 metabolisms in atherosclerotic vessels is needed, which would help in developing new strategies for the inhibition and treatment of atherosclerosis...
An anti-proliferative gene BTG1 regulates angiogenesis in vitroKenji Iwai
Division of Cardiovascular and Respiratory Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Biochem Biophys Res Commun 316:628-35. 2004..BTG1-overexpressing endothelial cells displayed increased cell migration. These findings suggest that BTG1 may play an important role in the process of angiogenesis...
Beta2-adrenergic receptor polymorphisms affect airway responsiveness to salbutamol in asthmaticsY Kotani
First Department of Internal Medicine, Kobe University School of Medicine, Japan
J Asthma 36:583-90. 1999..These results suggest that beta2AR polymorphisms play an important role in the airway responsiveness to inhaled beta2-agonist and the initial asthma onset...
[Nitric oxide spares myocardial oxygen consumption through attenuation of contractile response to beta-adrenergic stimulation in patients with idiopathic dilated cardiomyopathy]T Shinke
First Department of Internal Medicine, Kobe University School of Medicine, Kobe
J Cardiol 37:119-20. 2001....
Propagermanium reduces atherosclerosis in apolipoprotein E knockout mice via inhibition of macrophage infiltrationTomoya Yamashita
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Arterioscler Thromb Vasc Biol 22:969-74. 2002..Inhibition of macrophage infiltration by propagermanium prevented the formation of atherosclerotic lesions in apoE-KO mice. This drug may serve as a therapeutic tool for the treatment of atherosclerosis...
Frequency and clinical characteristics of dilated cardiomyopathy caused by desmin gene mutation in a Japanese populationY Miyamoto
Division of Cardiovascular and Respiratory Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Eur Heart J 22:2284-9. 2001..The ages at diagnosis were younger and the cardiac function had deteriorated further than general cases of sporadic dilated cardiomyopathy...
Effects of eicosapentaenoic acid on blood pressure, cell membrane fatty acids, and intracellular sodium concentration in essential hypertensionT Miyajima
First Department of Internal Medicine, Kobe University School of Medicine, Japan
Hypertens Res 24:537-42. 2001..Based on the association between the increase in membrane EPA content and the decrease in intracellular sodium concentration, EPA may lower blood pressure by altering the activities of the membrane sodium transport systems...
Unsaturated free fatty acids inhibit Ca2+ mobilization and NO release in endothelial cellsR Kuroda
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine 7-5-1 Kobe, 650-0017, Japan
Kobe J Med Sci 47:211-9. 2001..From these results, elevated UFFA may contribute to impaired NO production through inhibition of receptor-mediated Ca2+ mobilization and Ca2+ influx in pathological conditions such as multiple risk factor syndrome and insulin resistance...
A 3-hydroxy-3-methylglutaryl co-enzyme A reductase inhibitor reduces hypertensive nephrosclerosis in stroke-prone spontaneously hypertensive ratsTomoya Yamashita
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Japan
J Hypertens 20:2465-73. 2002..These results show the potential of statins as protective tools against proteinuric renal diseases, independent of their cholesterol-decreasing effects...
Overexpression of endothelial nitric oxide synthase accelerates atherosclerotic lesion formation in apoE-deficient miceMasanori Ozaki
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
J Clin Invest 110:331-40. 2002....
Elevated pulmonary arterial pressure in pulmonary lymphangiomyomatosisY Kawahara
First Department of Internal Medicine, Kobe University School of Medicine, Japan
Jpn J Med 28:520-2. 1989..She was found to have moderate pulmonary hypertension. Possible mechanisms for the development of pulmonary hypertension are discussed...
Involvement of NADH/NADPH oxidase in human platelet ROS productionT Seno
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
Thromb Res 103:399-409. 2001..Thus, human platelets have the enzymatic activity of p22(phox)-based NADH/NADPH oxidase, and this oxidase is likely one of the important sources of ROS in platelets...
Elevated parasympathetic nerve tone in isoproterenol-induced neurally mediated syncope during head-up tilt testingA Takei
First Department of Internal Medicine, Kobe University School of Medicine, Japan
Jpn Circ J 65:320-4. 2001..The early and persistent increase in parasympathetic nerve tone provoked by isoproterenol plays an important role in enhancing the vasovagal reaction during head-up tilt testing...
Expression of Fos-like immunoreactivity by yohimbine and clonidine in the rat brainT Tsujino
First Department of Internal Medicine, Kobe University School of Medicine, Japan
Eur J Pharmacol 226:69-78. 1992..Thus, the alpha 2-adrenoceptor is involved in transcriptional control via Fos expression in neurons related to autonomic and other functions...
Transplantation of cardiotrophin-1-expressing myoblasts to the left ventricular wall alleviates the transition from compensatory hypertrophy to congestive heart failure in Dahl salt-sensitive hypertensive ratsRyuji Toh
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
J Am Coll Cardiol 43:2337-47. 2004..CONCLUSIONS: Transplantation of skeletal myoblasts combined with CT-1-gene transfer could be a useful therapeutic strategy for HF...
Angiotensin II type 1 receptor blocker telmisartan suppresses superoxide production and reduces atherosclerotic lesion formation in apolipoprotein E-deficient miceTomofumi Takaya
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
Atherosclerosis 186:402-10. 2006..Telmisartan reduced atherosclerosis in apolipoprotein E-deficient mice at least partly via the suppression of oxidative stress...
A specific role for eNOS-derived reactive oxygen species in atherosclerosis progressionTomofumi Takaya
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Arterioscler Thromb Vasc Biol 27:1632-7. 2007..In this study, we addressed the specific importance of uncoupled eNOS in atherosclerosis, and the potential mechanistic role for specific versus nonspecific antioxidant strategies in restoring eNOS coupling...
Endothelial lipase is increased by inflammation and promotes LDL uptake in macrophagesTomoyuki Yasuda
Division of Cardiovascular Medicine, Kobe University Graduate School of Medicine, Japan
J Atheroscler Thromb 14:192-201. 2007..EL is known to act as a bridging molecule for monocytes or lipoproteins in vascular endothelial cells. We investigated the role and regulatory mechanisms of EL expression in macrophages...
The great Hanshin-Awaji earthquake aggravates blood pressure control in treated hypertensive patientsK Saito
First Department of Internal Medicine, Kobe University, School of Medicine, Japan
Am J Hypertens 10:217-21. 1997....
Relationship between bronchial hyperreactivity and symptoms of cardiac asthma in patients with non-valvular left ventricular failureY Nishimura
First Department of Internal Medicine, Kobe University School of Medicine, Japan
Jpn Circ J 60:933-9. 1996..710, p < 0.01). We conclude that bronchial hyperreactivity is responsible for cardiac asthma and that it might be related to pulmonary interstitial changes in stable patients with non-valvular LVF...
Usefulness of beat-to-beat QT dispersion fluctuation for identifying patients with coronary heart disease at risk for ventricular arrhythmiasE J Figueredo
Division of Cardiovascular and Respiratory Medicine, Kobe University, Graduate School of Medicine, Kobe, Japan
Am J Cardiol 88:1235-9. 2001..Thus, QTd has a dynamic behavior with significant beat-to-beat fluctuations even in normal subjects and is more marked in patients with coronary heart disease at risk for ventricular arrhythmias...
Alpha 2-adrenoceptors and platelet function in patients with variant anginaA Kusui
First Department of Internal Medicine, Kobe University School of Medicine, Japan
Thromb Res 56:453-63. 1989..These results suggest that increased capacity of platelet alpha-adrenoceptor may explain enhanced reactivity to epinephrine in patients with variant angina...
Bronchial hyperresponsiveness and exhaled nitric oxide in patients with cardiac diseaseY Nishimura
First Department of Internal Medicine, Kobe University School of Medicine, Kobe, Japan
Respiration 68:41-5. 2001..In various cardiac diseases, bronchial hyperresponsiveness is observed, as is bronchial asthma. However, there have been few studies on the relationship between exhaled NO and bronchial responsiveness in cardiac diseases...
Persistent malapposition after implantation of sirolimus-eluting stent into intramural coronary hematoma: optical coherence tomography observationsTakahiro Sawada
Department of Internal Medicine, Division of Cardiovascular and Respiratory Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
Circ J 70:1515-9. 2006..OCT is useful in showing the precise condition of the stent struts...
Expression of G2A, a receptor for lysophosphatidylcholine, by macrophages in murine, rabbit, and human atherosclerotic plaquesYoshiyuki Rikitake
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Arterioscler Thromb Vasc Biol 22:2049-53. 2002..Although it has been demonstrated that G2A is expressed predominantly in lymphoid tissues and lymphocytes, there are no reports to determine whether G2A is expressed in atherosclerotic lesions and cardiovascular cells...
Local overexpression of monocyte chemoattractant protein-1 at vessel wall induces infiltration of macrophages and formation of atherosclerotic lesion: synergism with hypercholesterolemiaMasayuki Namiki
Division of Cardiovascular and Respiratory Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Arterioscler Thromb Vasc Biol 22:115-20. 2002..To initiate atherosclerotic changes, local MCP-1 overexpression at the vessel is not sufficient, and activation of other factors induced by hypercholesterolemia is required...
Alterations of circadian expressions of clock genes in Dahl salt-sensitive rats fed a high-salt dietTakao Mohri
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1, Kusunoki, Chuo, Kobe, 650-0017, Japan
Hypertension 42:189-94. 2003..Detailed analyses of the relation between circadian expression of clock genes and blood pressure regulation might reveal a role for chronologic therapy of cardiovascular disease...
Regulation of tyrosine phosphorylation of PYK2 in vascular endothelial cells by lysophosphatidylcholineY Rikitake
First Department of Internal Medicine, Kobe University School of Medicine, Kobe 650 0017, Japan
Am J Physiol Heart Circ Physiol 281:H266-74. 2001....
Clinical significance of junctional pacemaker automaticity in patients with sick sinus syndromeH Ogawa
First Department of Internal Medicine, Kobe University, School of Medicine, Japan
Jpn Circ J 55:1165-73. 1991..Organic impairment should affect conductivity as well as automaticity in the AV junction...
Analysis of 7-ketocholesterol in low density lipoprotein and fatty acid composition in erythrocyte membranes of patients on maintenance hemodialysis and healthy controlsD Tsuzuki
Department of Public Health, Kobe University, School of Medicine, 7 5 1 Kusunoki cho Chuo ku Kobe, Hyogo, Japan
Clin Chim Acta 295:155-68. 2000..We believe that the method to quantify 7-KC in this study is concise and reliable and may be used to investigate various diseases...
Effects of alcohol moderation on blood pressure and intracellular cations in mild essential hypertensionS T Hsieh
First Department of Internal Medicine, Kobe University School of Medicine, Japan
Am J Hypertens 8:696-703. 1995..abstract truncated at 250 words)..
Ambulatory blood pressure and heart rate during once-daily, randomized, crossover administration of carteolol and atenololK Saito
First Department of Internal Medicine, Kobe University School of Medicine, Japan
Clin Ther 16:181-90. 1994..001, respectively). These results suggest that the different effects of the two beta-blockers on heart rate and nighttime blood pressure may be attributed to the presence or absence of intrinsic sympathomimetic activity...
Plasma brain natriuretic peptide as a novel therapeutic indicator in idiopathic dilated cardiomyopathy during beta-blocker therapy: a potential of hormone-guided treatmentK Kawai
First Department of Internal Medicine, Kobe University School of Medicine, Kobe, Japan
Am Heart J 141:925-32. 2001..5 and 69 pg/mL, respectively. CONCLUSION: Plasma BNP levels may accurately reflect alteration in LV function and structure and can be used as a therapeutic indicator for risk stratification in patients with IDC during BB therapy...
High glucose accelerates MCP-1 production via p38 MAPK in vascular endothelial cellsHiroshi Takaishi
Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
Biochem Biophys Res Commun 305:122-8. 2003..These results indicate that hyperglycemia can accelerate MCP-1 production through the mechanism involving p38 MAPK, ROS-sensitive signaling pathway, in vascular endothelial cells...
HMG-CoA reductase inhibitor has protective effects against stroke events in stroke-prone spontaneously hypertensive ratsSeinosuke Kawashima
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Stroke 34:157-63. 2003..The purpose of this study is to clarify the effect of a statin on stroke in stroke-prone spontaneously hypertensive rats (SHR-SP), in which both cerebral hemorrhage and infarction occur...
An X-Ray diffraction study on mouse cardiac cross-bridge function in vivo: effects of adrenergic {beta}-stimulationRyuji Toh
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650-0017, Japan
Biophys J 90:1723-8. 2006....
Intramuscular gene transfer of interleukin-10 cDNA reduces atherosclerosis in apolipoprotein E-knockout miceMasayuki Namiki
Department of Internal Medicine, Division of Cardiovascular and Respiratory Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, 650-0017, Kobe, Japan
Atherosclerosis 172:21-9. 2004..Therefore, IL-10 gene transfer changed the Th1 response and suppressed atherosclerotic lesion formation in apoE-KO mice. IL-10 could be a new target as a therapeutic tool for the treatment of atherosclerosis...
Neointimal coverage of sirolimus-eluting stents at 6-month follow-up: evaluated by optical coherence tomographyDaisuke Matsumoto
Department of Internal Medicine, Division of Cardiovascular and Respiratory Medicine, Kobe University Graduate School of Medicine, Kobe, Hyogo 650 0017, Japan
Eur Heart J 28:961-7. 2007..However, optical coherence tomography (OCT) with excellent resolution may be able to detect thinner neointima...
Sirolimus-eluting stent fracture with thrombus, visualization by optical coherence tomographyJunya Shite
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Chuo-ku, Kobe, Hyogo, Japan
Eur Heart J 27:1389. 2006
Dual ECE/NEP inhibition on cardiac and neurohumoral function during the transition from hypertrophy to heart failure in ratsNoriaki Emoto
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7 5 1, Kusunoki, Chuo, Kobe, 650 0017, Japan
Hypertension 45:1145-52. 2005..The beneficial effects of CGS 26303 are likely caused in part by the greater reduction of plasma ET-1. Dual ECE/NEP inhibitor may provide a new strategy for the treatment of human heart failure...
Impact of increasing diabetes on coronary artery disease in the past decadeHiroshi Takaishi
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
J Atheroscler Thromb 11:271-7. 2004..38). In conclusion, the prevalence rate of DM among CAD patients significantly increased in this decade, and the consequent increase in the prevalence of MVD should be recognized as the most important problem clinically...
Xenogenic macrophage immunization reduces atherosclerosis in apolipoprotein E knockout miceTomoya Yamashita
Division of Cardiovascular Medicine, Dept of Internal Medicine, Kobe Univ Graduate School of Medicine, 7 5 1 Kusunoki cho, Chuo Ku, Kobe 650 0017, Japan
Am J Physiol Cell Physiol 293:C865-73. 2007..This method is a novel and potentially useful cell-mediated immune therapeutic technique against atherosclerosis...
Effect of continuous positive airway pressure on soluble CD40 ligand in patients with obstructive sleep apnea syndromeKazuyuki Kobayashi
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7 5 1 Kusunoki cho, Chuo Ku, Kobe 650 0017, Japan
Chest 129:632-7. 2006..The present study examines whether CD40 ligation contributes to outcomes in patients with OSAS...
Oxidant stress and atherosclerosisMitsuhiro Yokoyama
Cardiovascular Division, Department of Medicine, Kobe University Graduate School of Medicine, 5 1 7 Chome, Kusunoki cho, Chuo Ku, Kobe, 650 0017, Japan
Curr Opin Pharmacol 4:110-5. 2004....
Vitamin C restores the contractile response to dobutamine and improves myocardial efficiency in patients with heart failure after anterior myocardial infarctionToshiro Shinke
Division of Cardiovascular and Respiratory Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Am Heart J 154:645.e1-8. 2007..We hypothesized that the antioxidant vitamin C may help reverse hyporesponsiveness to beta-adrenergic stimulation and improve myocardial efficiency in patients with heart failure (HF) after myocardial infarction (MI)...
Endocardial substrate mapping for monomorphic ventricular tachycardia ablation in ischemic and non-ischemic cardiomyopathyKoji Fukuzawa
Department of Internal Medicine, Division of Cardiovascular Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Kobe J Med Sci 54:E122-35. 2008..VT recurrence rate subsequent to endocardial ablation was higher in NICM than in ICM patients...
Decreased mAKAP, ryanodine receptor, and SERCA2a gene expression in mdx heartsMohammad Saifur Rohman
Department of Internal Medicine, Kobe University Graduate School of Medicine, 7 5 1 Kusunoki, Chuo, Kobe 6500017, Japan
Biochem Biophys Res Commun 310:228-35. 2003..Therefore, dystrophin deficiency may cause an impairment of SR Ca(2+) homeostasis and E-C coupling in mdx hearts, in part, by decreased gene expression of molecules involved in SR Ca(2+) handling...
Heterogeneous loss of connexin43 protein in nonischemic dilated cardiomyopathy with ventricular tachycardiaHidetsuna Kitamura
Department of Internal Medicine, Kobe University Graduate School of Medicine, Japan
J Cardiovasc Electrophysiol 13:865-70. 2002..03). Furthermore, Cx43 protein was distributed heterogeneously in the VT groups (P < 0.0001). CONCLUSION: Heterogeneous reduction of Cx43 protein may result in development of malignant ventricular arrhythmia in DCM...
Clinical significance of T-wave alternans in hypertrophic cardiomyopathyNami Kuroda
Department of Internal Medicine, Kobe University Graduate School of Medicine, Chuoku, Japan
Circ J 66:457-62. 2002..9+/-1.1 vs 0.7+/-0.5; p<0.05). TWA in HCM correlates with histopathological changes, especially disarray and ventricular tachyarrhythmia, and measuring it may be a noninvasive means of detecting high-risk patients with HCM...
Involvement of endothelial nitric oxide in sphingosine-1-phosphate-induced angiogenesisYoshiyuki Rikitake
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Arterioscler Thromb Vasc Biol 22:108-14. 2002..Thus, our results demonstrate the crucial role of NO in S1P-induced angiogenesis in vivo and in vitro and suggest the divergent roles of NO in the S1P-induced angiogenic response...
Papillary fibroelastoma of the left atrial appendage: echocardiographic findingsT Tsukube
Department of Surgery, Kobe University, School of Medicine, Japan
Ann Thorac Surg 70:1416-7. 2000..The roles of transesophageal echocardiography and surgical intervention are discussed...
Taurine prevents the decrease in expression and secretion of extracellular superoxide dismutase induced by homocysteine: amelioration of homocysteine-induced endoplasmic reticulum stress by taurineH Nonaka
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Circulation 104:1165-70. 2001..Taurine restores the secretion and expression of EC-SOD by ameliorating ER stress induced by homocysteine...
Alternative splicing regulates the endoplasmic reticulum localization or secretion of soluble secreted endopeptidaseS B Raharjo
Division of Molecular Medicine, International Center for Medical Research, Kobe University Graduate School of Medicine, 7-5-1 Kusunoki, Chuo, Kobe 6500017, Japan
J Biol Chem 276:25612-20. 2001..Our results suggest that the unique subcellular localization and secretion of SEP proteins provide a novel model of protein trafficking within the secretory pathway...
Monophasic action potentials of the right atrium in patients with paroxysmal atrial fibrillationJ Sekiya
First Department of Internal Medicine, Kobe University School of Medicine, Japan
Jpn Circ J 65:893-6. 2001..3, p<0.05; 3.2+/-0.4 vs 3.7+/-0.3, p<0.02). A shortened and widened dispersion of atrial refractoriness may play an important role in the genesis of AF. Furthermore, smaller wavelengths may form in the atrium of patients with PAF...
QT and JT dispersion in patients with monomorphic or polymorphic ventricular tachycardia/ventricular fibrillationH Shimizu
Department of Internal Medicine, Kobe University School of Medicine, Kobe, Japan
J Electrocardiol 34:119-25. 2001..005 vs. the MVT group). Patients with PMVT/VF have a greater dispersion of ventricular repolarization time. Repolarization abnormalities are important for ventricular arrhythmogenesis and detectable on the surface ECG...
Angiotensin II induces circadian gene expression of clock genes in cultured vascular smooth muscle cellsH Nonaka
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Circulation 104:1746-8. 2001..Our in vitro system will provide a useful tool to further analyze the physiological significance of the peripheral clock in cardiovascular function...
Superoxide generation in directional coronary atherectomy specimens of patients with angina pectoris: important role of NAD(P)H oxidaseHiroshi Azumi
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Arterioscler Thromb Vasc Biol 22:1838-44. 2002..CONCLUSIONS: ROS generated by p22(phox)-based NADH/NADPH oxidase likely mediate the oxidative modification of LDL and might play a major role in pathogenesis of atherosclerotic coronary artery disease...
[Inhibitory effect of nitric oxide on oxidation of low-density lipoprotein]Yoshio Fujioka
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine
Nippon Rinsho 62:493-5. 2004
Increased expression of endothelial lipase in rat models of hypertensionYasushi Shimokawa
Division of Cardiovascular and Respiratory Medicine, Kobe University Graduate School of Medicine, Chuo Ku, Japan
Cardiovasc Res 66:594-600. 2005..To gain a better understanding of the involvement of endothelial lipase (EL) in vascular disease, we examined whether the EL expression is regulated in animal models of hypertension...
Obesity-induced upregulation of myocardial endothelin-1 expression is mediated by leptinSuko Adiarto
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Biochem Biophys Res Commun 353:623-7. 2007..In contrast, in leptin-deficient obese (ob/ob) mice, both serum and myocardial ET-1 levels were not higher than in wild type mice. These findings suggest that upregulation of myocardial ET-1 by obesity is mediated by leptin...
Molecular isolation and characterization of novel four subisoforms of ECE-2Shoko Ikeda
Division of Molecular Medicine, Kobe University Graduate School of Medicine, 7 5 1 Kusunoki, Chuo, Kobe 6500017, Japan
Biochem Biophys Res Commun 293:421-6. 2002..Detailed analysis of ECE-2 subisoforms will provide crucial information to clarify the physiological function of ECE-2...
Possible role of brain-derived neurotrophic factor in the pathogenesis of coronary artery diseaseJunya Ejiri
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe 650 0017, Japan
Circulation 112:2114-20. 2005..NTs and their receptors are expressed in atherosclerotic lesions; however, their significance in cardiovascular disease remains unclear...
Clinical characteristics of induced nonclinical ventricular tachycardia in nonischemic cardiomyopathyKatsunori Okajima
Division of Cardiovascular and Respiratory Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
Jpn Heart J 43:643-54. 2002..In conclusion, induced NCVT and CVT are refractory to pharmacological therapy and both have an important characteristic value in DCM...
Oxidative stress in the pathogenesis of thoracic aortic aneurysm: protective role of statin and angiotensin II type 1 receptor blockerJunya Ejiri
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
Cardiovasc Res 59:988-96. 2003..Statin and ARB might have inhibitory effects on the formation of aneurysms via the suppression of NADH/NADPH oxidase...
Images in cardiovascular medicine. Mouse coronary angiograph using synchrotron radiation microangiographyTomoya Yamashita
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Circulation 105:E3-4. 2002
Endothelial urocortin has potent antioxidative properties and is upregulated by inflammatory cytokines and pitavastatinTomoyuki Honjo
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
J Vasc Res 43:131-8. 2006..Urocortin exerts potent cardioprotective effects under various pathological conditions including ischemia/reperfusion. However, the regulation and function of vascular urocortin are unknown...
Overexpression of endothelial nitric oxide synthase in endothelial cells is protective against ischemia-reperfusion injury in mouse skeletal muscleMasanori Ozaki
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School ofMedicine, Kobe, Japan
Am J Pathol 160:1335-44. 2002..NOS inhibition completely reversed these protective effects of eNOS overexpression in I/R injury. Thus, eNOS overexpression appears to prevent the I/R injury in skeletal muscle by maintaining vascular integrity...
Interaction of oxidative stress and inflammatory response in coronary plaque instability: important role of C-reactive proteinSeiichi Kobayashi
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Japan
Arterioscler Thromb Vasc Biol 23:1398-404. 2003....
Endothelial lipase gene polymorphism is associated with acute myocardial infarction, independently of high-density lipoprotein-cholesterol levelsMasakatsu Shimizu
Division of General Medical Science, Department of General Therapeutics, Kobe University Graduate School of Medicine, 7 5 2 Kusunoki cho, Chuo Ku, Kobe 650 0017, Japan
Circ J 71:842-6. 2007..The EL gene has a common 584C/T polymorphism, but it is unclear whether this polymorphism is associated with HDL-C levels or acute myocardial infarction (AMI)...
Bezafibrate improves hypertension and insulin sensitivity in humansJong Il Kim
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Kobe, Japan
Hypertens Res 26:307-13. 2003..Abnormalities in membrane lipid composition may play an important role in these metabolic disorders...
Endothelial lipase modulates monocyte adhesion to the vessel wall. A potential role in inflammationYoko Kojma
Division of Cardiovascular and Respiratory Medicine, Kobe University Graduate School of Medicine, 7 5 1 Kusunoki cho, Chuo Ku, Kobe 650 0017, Japan
J Biol Chem 279:54032-8. 2004..Thus, the up-regulation of EL by inflammatory stimuli may be involved in the progression of inflammation...
Comparative effects of monatepil, a novel calcium antagonist with alpha 1-adrenergic-blocking activity, and nitrendipine on lipoprotein and carbohydrate metabolism in patients with hypertensionJ Sasaki
Department of Internal Medicine, Fukuoka University Medical School, Japan
Am J Hypertens 7:161S-166S. 1994....
Calcium supplementation inhibits the expression of parathyroid hypertensive factor in DOCA-salt hypertensive ratsC M Lin
First Department of Internal Medicine, Kobe University School of Medicine, Japan
Am J Hypertens 7:201-4. 1994....
Effect of L-arginine administration on myocardial thallium-201 perfusion during exercise in patients with angina pectoris and normal coronary angiogramsH Fujita
First Department of Internal Medicine, Kobe University School of Medicine, Japan
J Nucl Cardiol 7:97-102. 2000..We tested the hypothesis that an exogenous supplement of L-arginine could alleviate coronary perfusion abnormality during exercise in patients with angina pectoris and normal coronary arteries...
Leptin stimulates rat aortic smooth muscle cell proliferation and migrationA Oda
First Division, Department of Internal Medicine, Kobe University School of Medicine
Kobe J Med Sci 47:141-50. 2001..These results demonstrate that leptin is a proliferative and migratory factor for VSMC, implying that leptin may play a role in the formation and development of vascular lesions...
Relationship between regional and global left ventricular systolic and diastolic function in patients with coronary artery disease assessed by strain rate imagingHidekazu Tanaka
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Circ J 71:517-23. 2007..The present study aimed to assess whether regional myocardial contraction and relaxation reflect global left ventricular systolic and early diastolic function, respectively...
Serum beta2-microglobulin concentration as a novel marker to distinguish levels of risk in acute heart failure patientsKeisuke Kawai
Department of Internal Medicine, Kasai City Hospital, 1 13, Yoko o, Hojo cho, Kasai, Hyogo 675 2311, Japan
J Cardiol 55:99-107. 2010..However, the prognostic role of beta2-microglobulin in heart failure has not been elucidated...
The effect of overexpression of endothelial nitric oxide synthase on eosinophilic lung inflammation in a murine modelKazuyuki Kobayashi
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7 5 1 Kusunoki cho, Chuo Ku, Kobe 650 0017, Japan
Int Immunopharmacol 6:1040-52. 2006....
[Genetically altered rodent models in the endothelin-related genes]Noriaki Emoto
Division of Cardiovascular and Respiratory Medicine, Department of Inter nal Medicine, Kobe University Graduate School of Medicine
Nippon Rinsho 64:311-5. 2006
Trichostatin A, an inhibitor of histone deacetylase, inhibits smooth muscle cell proliferation via induction of p21(WAF1)Hiroshi Okamoto
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
J Atheroscler Thromb 13:183-91. 2006..In conclusion, TSA inhibits VSMC proliferation via the induction of p21(WAF1) expression and subsequent cell-cycle arrest with reduction of the phosphorylation of Rb protein at the G1-S phase...
Atherosclerotic plaque imaging using phase-contrast X-ray computed tomographyMasakazu Shinohara
Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7 5 1 Kusunoki cho, Chuo Ku, Kobe 650 0017, Japan
Am J Physiol Heart Circ Physiol 294:H1094-100. 2008..It can be a promising noninvasive technique for the investigation of plaque components and detection of unstable coronary plaques...
[Relationship between high sensitive C-reactive protein and coronary plaque component in patients with acute coronary syndrome: Virtual Histology study]Takahiro Sawada
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine
J Cardiol 48:141-50. 2006..CONCLUSIONS: IVUS spectral analysis revealed that elevated plasma high sensitve CRP level was correlated with necrotic core volume in patients with ACS, both in culprit and non-culprit lesions, suggesting enhanced vascular inflammation...
Toll-like receptor 4 expressions on peripheral blood monocytes were enhanced in coronary artery disease even in patients with low C-reactive proteinRio Shiraki
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, 7-5-2, Kusunoki-cho, Chuo-ku, Kobe 650-0017, Japan
Life Sci 80:59-66. 2006..The combined measurement of serum hsCRP and the TLR4 expression on peripheral blood monocytes, especially among low-hsCRP subjects, may become a new coronary risk marker...
Pathophysiological characteristics and responsiveness to neurohormonal antagonism in idiopathic dilated cardiomyopathy patients with antihepatitis C virus antibodyKeisuke Kawai
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Int Heart J 46:407-17. 2005..Nevertheless, the advanced ventricular remodeling with HCV was adequately reversed by neurohormonal antagonism, and did not lead to an unfavorable outcome...
Sphingosine 1-phosphate induces alpha-smooth muscle actin expression in lung fibroblasts via Rho-kinaseYoshiko Urata
Division of Cardiovascular and Respiratory Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Kobe J Med Sci 51:17-27. 2005..These processes were inhibited by Y-27632, but not by pertussis toxin. These results suggest that S1P induces a phenotypic change of lung fibroblasts via Rho-kinase that may lead to airway remodeling...
Decreased ornithine decarboxylase activity in the kidneys of Dahl salt-sensitive ratsTakeshi Hayashi
Division of Cardiovascular and Respiratory Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan
Hypertens Res 25:787-95. 2002..ODC protein was suggested to increase in compensation for the inhibition of its activity. Impaired ODC activity and polyamine production in the kidney may exaggerate salt-sensitive hypertension in SS rats...
Decreased expression of arginase II in the kidneys of Dahl salt-sensitive ratsSachiyo Iwata
Department of Internal Medicine, Kobe University Graduate School of Medical Science, Japan
Hypertens Res 25:411-8. 2002..These findings suggest that decreased arginase expression in the kidney may be at least partially responsible for the salt-sensitive hypertension in SS rats...
