{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,5,13]],"date-time":"2024-05-13T05:07:41Z","timestamp":1715576861596},"reference-count":32,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"6","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["ATVB"],"published-print":{"date-parts":[[2007,6]]},"abstract":"<jats:p>\n            <jats:bold>\n              <jats:italic>Background\u2014<\/jats:italic>\n            <\/jats:bold>\n            Therapeutic effect of stem cell transplantation (SCTx) for myocardial neovascularization has been evaluated by histological capillary density in small animals. However, it has been technically difficult to obtain imaging evidence of collateral formation by conventional angiography.\n          <\/jats:p>\n          <jats:p>\n            <jats:bold>\n              <jats:italic>Methods and Results\u2014<\/jats:italic>\n            <\/jats:bold>\n            Peripheral blood CD34+ and CD34\u2212 cells were isolated from patients with critical limb ischemia. PBS, CD34\u2212 cells, or CD34+ cells were intramyocardially transplanted after ligating LAD of nude rats. Coronary angiography of ex vivo beating hearts 5 and 28 days after the treatment was performed using the third generation synchrotron radiation microangiography (SRM), which has potential to visualize vessels as small as 20 \u03bcm in diameter. The SRM was performed pre and post sodium nitroprusside (SNP) to examine vascular physiology at each time point. Diameter of most collateral vessels was 20 to 120 \u03bcm, apparently invisible size in conventional angiography. Rentrop scores at day 28 pre and post SNP were significantly greater in CD34+ cell group than other groups (\n            <jats:italic>P<\/jats:italic>\n            &lt;0.01). To quantify the extent of collateral formation, angiographic microvessel density (AMVD) in the occluded LAD area was analyzed. AMVD on day 28 post SNP, not pre SNP, was significantly augmented in CD34+ cell group than other groups (\n            <jats:italic>P<\/jats:italic>\n            &lt;0.05). AMVD post SNP closely correlated with histological capillary density (\n            <jats:italic>R<\/jats:italic>\n            =0.82,\n            <jats:italic>P<\/jats:italic>\n            &lt;0.0001).\n          <\/jats:p>\n          <jats:p>\n            <jats:bold>\n              <jats:italic>Conclusions\u2014<\/jats:italic>\n            <\/jats:bold>\n            The SRM, capable of visualizing microvessels, may be useful for morphometric and physiological evaluation of coronary collateral formation by SCTx. The novel imaging system may be an essential tool in future preclinical\/translational research of stem cell biology.\n          <\/jats:p>","DOI":"10.1161\/atvbaha.106.137141","type":"journal-article","created":{"date-parts":[[2007,3,16]],"date-time":"2007-03-16T00:41:12Z","timestamp":1174005672000},"page":"1326-1333","update-policy":"http:\/\/dx.doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":17,"title":["Synchrotron Radiation Coronary Microangiography for Morphometric and Physiological Evaluation of Myocardial Neovascularization Induced by Endothelial Progenitor Cell Transplantation"],"prefix":"10.1161","volume":"27","author":[{"given":"Hiroto","family":"Iwasaki","sequence":"first","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazuhito","family":"Fukushima","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Atsuhiko","family":"Kawamoto","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Keiji","family":"Umetani","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Akira","family":"Oyamada","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Saeko","family":"Hayashi","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tomoyuki","family":"Matsumoto","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masakazu","family":"Ishikawa","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toshihiko","family":"Shibata","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiromi","family":"Nishimura","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hidekazu","family":"Hirai","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yutaka","family":"Mifune","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Miki","family":"Horii","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazuro","family":"Sugimura","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; the Department of Cardiovascular Surgery (H.I., T.S., H.H., S.S.), Osaka City University Graduate School of Medicine; the Department of Image-based Medicine (K.F.), Kobe Institute of Biomedical Research and Innovation; the Department of Radiology (K.F., K.S.), Kobe University Graduate School of Medicine; the..."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shigefumi","family":"Suehiro","sequence":"additional","affiliation":[{"name":"From Stem Cell Translational Research (H.I., A.K., A.O., S.H., T.M., M.I., H.N., Y.M., M.H., T.A.), Kobe Institute of Biomedical Research and Innovation\/RIKEN Center for Developmental Biology; 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