{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,17]],"date-time":"2026-10-17T02:02:05Z","timestamp":1792202525707,"version":"4.4.0"},"reference-count":46,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"2","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Stroke"],"published-print":{"date-parts":[[2009,2]]},"abstract":"<jats:p>\n            <jats:bold>\n              <jats:italic>Background and Purpose\u2014<\/jats:italic>\n            <\/jats:bold>\n            Chronic cerebral ischemia leads to higher risk for strokes attributable to insufficient collateralization, resulting from inadequate capacity for arteriogenesis and angiogenesis. Patients with Moyamoya disease (MMD) have similar transient ischemic attack frequencies compared to patients with chronic cerebral ischemia with other etiologies, but a strong capacity for arteriogenesis and angiogenesis. The mechanisms involved in the upregulation of the arteriogenesis and angiogenesis in MMD still remain unknown. In the present study we investigated if circulating endothelial progenitor cells are increasingly mobilized during MMD.\n          <\/jats:p>\n          <jats:p>\n            <jats:bold>\n              <jats:italic>Methods\u2014<\/jats:italic>\n            <\/jats:bold>\n            Twenty MMD patients, 8 patients with atherosclerotic cerebrovascular disease, and 15 healthy individuals were included in this study. Peripheral blood mononuclear cells were isolated by Ficoll density gradient centrifugation and circulating endothelial progenitor cells were characterized by triple staining using antibodies against CD133, CD34, and vascular endothelial growth factor receptor-2. Serum concentrations of vascular endothelial growth factor and granulocyte-macrophage colony-stimulating factor were determined by enzyme-linked immunosorbent assay.\n          <\/jats:p>\n          <jats:p>\n            <jats:bold>\n              <jats:italic>Results\u2014<\/jats:italic>\n            <\/jats:bold>\n            In MMD patients the number of circulating endothelial progenitor cells was significantly higher than in atherosclerotic cerebrovascular disease patients (\n            <jats:italic>P<\/jats:italic>\n            &lt;0.002) and healthy controls (\n            <jats:italic>P<\/jats:italic>\n            &lt;0.0001). Serum vascular endothelial growth factor concentrations in MMD patients and in atherosclerotic cerebrovascular disease patients were significantly higher compared to those in healthy controls (\n            <jats:italic>P<\/jats:italic>\n            &lt;0.0001). Similar findings were observed for granulocyte-macrophage colony-stimulating factor. An inverse correlation between circulating endothelial progenitor cell numbers and serum levels of vascular endothelial growth factor (\n            <jats:italic>r<\/jats:italic>\n            =\u22120.53;\n            <jats:italic>P<\/jats:italic>\n            &lt;0,02) was found in the MMD group.\n          <\/jats:p>\n          <jats:p>\n            <jats:bold>\n              <jats:italic>Conclusion\u2014<\/jats:italic>\n            <\/jats:bold>\n            Our results show increased circulating endothelial progenitor cell numbers in MMD, which may play a role in the increased arteriogenesis and angiogenesis in MMD. Moreover, our results suggest that increased circulating endothelial progenitor cell mobilization in MMD may not be entirely mediated by vascular endothelial growth factor or granulocyte-macrophage colony-stimulating factor.\n          <\/jats:p>","DOI":"10.1161\/strokeaha.108.529420","type":"journal-article","created":{"date-parts":[[2008,12,19]],"date-time":"2008-12-19T02:40:49Z","timestamp":1229654449000},"page":"432-438","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":101,"title":["Increased Levels of Circulating Endothelial Progenitor Cells in Patients With Moyamoya Disease"],"prefix":"10.1161","volume":"40","author":[{"given":"Neysan","family":"Rafat","sequence":"first","affiliation":[{"name":"From Department of Anaesthesiology and Critical Care Medicine (N.R., G.C.B.), Department of Pediatrics (N.R.), and Department of Neurosurgery (P.P.-T., P.S., P.V.), University Hospital Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany; Department of Neurosurgery (P.V.), Charite\u0301-Universita\u0308tsmedizin Berlin, Berlin, Germany."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Grietje Ch.","family":"Beck","sequence":"additional","affiliation":[{"name":"From Department of Anaesthesiology and Critical Care Medicine (N.R., G.C.B.), Department of Pediatrics (N.R.), and Department of Neurosurgery (P.P.-T., P.S., P.V.), University Hospital Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany; Department of Neurosurgery (P.V.), Charite\u0301-Universita\u0308tsmedizin Berlin, Berlin, Germany."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Pablo G.","family":"Pen\u0303a-Tapia","sequence":"additional","affiliation":[{"name":"From Department of Anaesthesiology and Critical Care Medicine (N.R., G.C.B.), Department of Pediatrics (N.R.), and Department of Neurosurgery (P.P.-T., P.S., P.V.), University Hospital Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany; Department of Neurosurgery (P.V.), Charite\u0301-Universita\u0308tsmedizin Berlin, Berlin, Germany."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"Schmiedek","sequence":"additional","affiliation":[{"name":"From Department of Anaesthesiology and Critical Care Medicine (N.R., G.C.B.), Department of Pediatrics (N.R.), and Department of Neurosurgery (P.P.-T., P.S., P.V.), University Hospital Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany; Department of Neurosurgery (P.V.), Charite\u0301-Universita\u0308tsmedizin Berlin, Berlin, Germany."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Peter","family":"Vajkoczy","sequence":"additional","affiliation":[{"name":"From Department of Anaesthesiology and Critical Care Medicine (N.R., G.C.B.), Department of Pediatrics (N.R.), and Department of Neurosurgery (P.P.-T., P.S., P.V.), University Hospital Mannheim, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany; Department of Neurosurgery (P.V.), Charite\u0301-Universita\u0308tsmedizin Berlin, Berlin, Germany."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"key":"e_1_3_3_1_2","doi-asserted-by":"publisher","DOI":"10.1007\/s001150050772"},{"key":"e_1_3_3_2_2","doi-asserted-by":"publisher","DOI":"10.2174\/156720206778018730"},{"key":"e_1_3_3_3_2","doi-asserted-by":"publisher","DOI":"10.1161\/str.27.12.2160"},{"key":"e_1_3_3_4_2","doi-asserted-by":"crossref","unstructured":"Czabanka M Pe\u00f1a-Tapia P Schubert GA Woitzik J Vajkoczy P Schmiedek P. 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