Research Topics
| Yasumi UchidaSummaryCountry: Japan Publications
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Detail Information
Publications
Localization of oxidized low-density lipoprotein and its relation to plaque morphology in human coronary arteryYasumi Uchida
Japan Foundation for Cardiovascular Research, Funabashi, Japan
PLoS ONE 8:e55188. 2013..The present study was performed to visualize deposition sites and patterns of native oxLDL and their relation to plaque morphology in human coronary artery...
Molecular imaging of low-density lipoprotein in human coronary plaques by color fluorescent angioscopy and microscopyYasumi Uchida
Japanese Foundation for Cardiovascular Research, Funabashi, Japan
PLoS ONE 7:e50678. 2012..However, its localization in human coronary plaques is not well understood. The present study was performed to visualize LDL in human coronary artery wall...
Recent advances in coronary angioscopyYasumi Uchida
Japan Foundation for Cardiovascular Research, Funabashi, Japan
J Cardiol 57:18-30. 2011..Therefore, development of a DES that causes an appropriate thickness (around 100 μm) of the neointima is a potential option with which to prevent neoendothelial cell damage and consequent LST while preventing restenosis...
Functional medial thickening and folding of the internal elastic lamina in coronary spasmYasumi Uchida
Japan Foundation for Cardiovascular Research, 2 30 17, Narashinodai, Funabashi, Japan 274 0063
Am J Physiol Heart Circ Physiol 300:H423-30. 2011..We conclude that coronary spasm was elicited by radial rearrangement of the medial SMCs due to their own contraction and resultant medial thickening and folding of IEL, creating a piston effect to narrow the lumen, i.e., spasm...
Two-dimensional visualization of cholesterol and cholesteryl esters within human coronary plaques by near-infrared fluorescence angioscopyYasumi Uchida
Department of Cardiology, Chiba Kensei Hospital, Japan
Clin Cardiol 33:775-82. 2010..If they are rendered visible in vivo, the progression of coronary plaques and the effects of respective therapies on these plaques can be objectively evaluated...
Characterization of coronary fibrin thrombus in patients with acute coronary syndrome using dye-staining angioscopyYasumi Uchida
Japan Foundation for Cardiovascular Research, Funabashi, Japan
Arterioscler Thromb Vasc Biol 31:1452-60. 2011..The present study was performed to visualize coronary fibrin thrombus and to examine its role in ACS...
Histological characteristics of glistening yellow coronary plaques seen on angioscopy. -With special reference to vulnerable plaques-Yasumi Uchida
Japan Foundation for Cardiovascular Research, Japan
Circ J 75:1913-9. 2011..Collagen fiber (CF) is the main substance that protects coronary plaques against mechanical stress. Therefore, whether angioscopically defined vulnerable plaques correlate with those defined histologically was investigated...
Role of calcium-activated potassium channels in the genesis of 3,4-diaminopyridine-induced periodic contractions in isolated canine coronary artery smooth musclesYasumi Uchida
Japan Foundation for Cardiovascular Research, Funabashi, Japan
J Pharmacol Exp Ther 338:974-83. 2011..These processes were repeated spontaneously to cause PCs. H(+) and OH(-) were considered to act as the opener and closer of K(Ca), respectively...
Cardioscopic detection of left ventricular thrombi. -With special reference to a comparison with left ventriculography and echocardiography-Yasuto Uchida
Department of Cardiology, Toho University Medical Center Ohmori Hospital, Japan
Circ J 75:1920-6. 2011..Thrombosis occurs in the left ventricle and causes ischemic cerebral attacks. However, differences in the incidence of left ventricular thrombi (LVT) among various categories of heart diseases are not known...
Fluffy luminal surface of the non-stenotic culprit coronary artery in patients with acute coronary syndrome: an angioscopic studyYasumi Uchida
Japan Foundation for Cardiovascular Research, Funabashi, Japan
Circ J 74:2379-85. 2010..Approximately 15% of acute coronary syndrome (ACS) cases have no significant coronary stenosis. Mechanisms underlying the attacks are, however, unknown...
Visualization of lipid components in human coronary plaques using color fluorescence angioscopyYasumi Uchida
Japan Foundation for Cardiovascular Research, Funabashi, Chiba, Japan
Circ J 74:2181-6. 2010....
Detection of vulnerable coronary plaques by color fluorescent angioscopyYasumi Uchida
Japan Foundation for Cardiovascular Research, Funabashi and Tokyo, Japan
JACC Cardiovasc Imaging 3:398-408. 2010..This study was carried out to detect vulnerable coronary plaques by color fluorescent angioscopy...
Angioscopic detection of pulmonary thromboemboli: with special reference to comparison with angiography, intravascular ultrasonography, and computed tomography angiographyYasumi Uchida
Japan Foundation for Cardiovascular Research, Funabashi, Chiba, Japan
J Interv Cardiol 23:470-8. 2010....
Possible participation of endothelial cell apoptosis of coronary microvessels in the genesis of Takotsubo cardiomyopathyYasumi Uchida
Japan Foundation for Cardiovascular Research, Funabashi, Japan
Clin Cardiol 33:371-7. 2010..Takotsubo cardiomyopathy (TCM) is characterized by systolic ballooning of the left ventricular apex. It is triggered by emotional or physical stress, but the exact mechanism through which stress leads to TCM is not known...
Formation of web- and membrane-like structures on the edges of bare-metal coronary stentsYasumi Uchida
Japan Foundation for Cardiovascular Research, Funabashi, Japan
Circ J 74:1830-6. 2010..Web-like (W) and membrane-like (M) structures have been observed on coronary stent edges on angioscopy but their incidence and mechanisms remain obscure...
Role of a streamer-like coronary thrombus in the genesis of unstable anginaYasumi Uchida
Japan Foundation for Cardiovascular Research, Funabashi, Japan
J Interv Cardiol 23:216-22. 2010..This study was carried out to examine the incidence of this phenomenon and its relationship to the subtypes of UA...
Nitroglycerin-induced heterogeneous subendocardial myocardial blood flow observed by cardioscopy in patients with coronary artery diseaseYasuto Uchida
Department of Cardiology, Toho University Ohmori Hospital, Tokyo, Japan
Int Heart J 52:331-7. 2011..NTG caused an increase in either arterial or venous SMBF depending on control endocardial color, wall motion and severity of coronary stenosis...
Cardioscopic observation of subendocardial microvessels in patients with coronary artery diseaseYasuto Uchida
Department of Cardiology, Toho University Medical Center Ohmori Hospital, Tokyo, Japan
Int Heart J 52:274-9. 2011..It remains to be elucidated whether and how blood filling is disturbed in other categories of heart disease...
Relationship between cardioscopic images and histological changes in the left ventricle of patients with idiopathic myocarditisYasumi Uchida
Japan Foundation for Cardiovascular Research, Toho University Sakura Hospital and Funabashi Futawa Hospital, 2 30 17 Narashinodai, Funabashi, Japan
Eur J Heart Fail 13:504-12. 2011..If the endocardial surface represents changes indicative of stages of myocarditis, staging of myocarditis and targeted cardioscope-guided biopsy could be used for accurate histological diagnosis...
Migration of mononuclear cells expressing β-actin through the adventitia into media and intima in coronary arteriogenesis and venogenesis in ischemic myocardiumYasuto Uchida
Department of Cardiology, Toho University Medical Center, Ohmori Hospital, Tokyo, Japan
Int Heart J 53:54-63. 2012....
Evaluation of myocardial tissue fluid flow by fluorescence cardioscopy in patients with coronary artery diseaseYasumi Uchida
Japan Foundation for Cardiovascular Research, ChibaKensei Hospital, Chiba, Japan
Int Heart J 51:153-8. 2010..FC is clinically feasible for evaluation of MTFF disturbance, for evaluation of even emergency coronary interventions, and for guidance of transendocardial angiogenic and myogenic therapies in patients with coronary artery disease...
Possible role of damaged neoendothelial cells in the genesis of coronary stent thrombus in chronic phase. A dye staining angioscopic studyYasumi Uchida
Japan Foundation for Cardiovascular Research, Chiba, Japan
Int Heart J 52:12-6. 2011..05). ST arose from damaged NECs covering the stent struts. NECs may have been damaged due to friction between them and struts due to thin interposed neointima which might have acted as a cushion, resulting in ST...
β-actin-positive mononuclear cells participate in coronary microvascular medial hyperplasia by migrating through adventitia into media, with special reference to microvessel anginaYasumi Uchida
Japan Foundation for Cardiovascular Research, 2 30 17 Narashino dai, Funabashi, Chiba, Japan
Int Heart J 53:43-53. 2012..MNCs are a vascular progenitor, and migrate out of the adventitia into media, and participate in the etiology of coronary microvascular medial hyperplasia...
Imaging of lysophosphatidylcholine in human coronary plaques by color fluorescence angioscopyYasumi Uchida
Japan Foundation for Cardiovascular Research, Funabashi, Chiba, Japan
Int Heart J 51:129-33. 2010..This fluorescence color was found to be distributed in a web-like or diffuse configuration by CFM scanning. LPC in the human coronary plaques was successfully visualized by CFA using TB as an indicator...
Imaging of subendocardial myocardial blood flow by dye-staining cardioscopy in patients with coronary artery diseaseYasumi Uchida
Japan Foundation for Cardiovascular Research, Toho University Sakira Hospital, Chiba, Japan
Int Heart J 51:308-11. 2010..It is evident that SMBF could be imaged by DSC. This imaging modality is useful for the evaluation of therapies and accurate guidance of transendocardial therapies of the ischemic myocardium...
Angioscopic evaluation of stabilizing effects of an antilipemic agent, bezafibrate, on coronary plaques in patients with coronary artery disease: a multicenter prospective studyHidefumi Ohsawa
Cardiovascular Center, Sakura Hospital of Toho University School of Medicine, Narita Red Cross Hospital, Chiba, Japan
Jpn Heart J 43:319-31. 2002..These results indicate that 6 month administration of bezafibrate stabilizes coronary plaques and that the stabilization is not correlated with angiographic changes...
Mechanism of antithrombotic effect of heparin and antithrombin in balloon-injured arteriesTakanobu Tomaru
Cardiovascular Center, Toho University Sakura Hospital, Shimoshizu 564 1, Sakura, Chiba 285 8741, Japan
Life Sci 77:2611-25. 2005..These results indicate that the relatively long antithrombotic effect of these drugs may be due to a local drug effect at the injured artery, as well as the recovery of the anti-thrombogenicity of the injured artery...
