Saeko S. Hayashi

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Failures in fracture healing are mainly caused by a lack of vascularization. Adult human circulating CD34+ cells, an endothelial/hematopoietic progenitor-enriched cell population, have been reported to differentiate into osteoblasts in vitro; however, the therapeutic potential of CD34+ cells for fracture healing is still unclear. Therefore, we performed a(More)
RATIONALE Despite preclinical success in regenerating and revascularizing the infarcted heart using angiogenic growth factors or bone marrow (BM) cells, recent clinical trials have revealed less benefit from these therapies than expected. OBJECTIVE We explored the therapeutic potential of myocardial gene therapy of placental growth factor (PlGF), a(More)
The prognostic significance of 1p19q loss in astrocytic gliomas has been inconclusive.We collected 57 gliomas with total 1p19q loss from among 218 cases of WHO grade-II/III gliomas operated at Keio University Hospital between 1990 and 2010. These tumors were classified as oligodendroglial or "astrocytic" by a WHO-criteria-based institutional diagnosis.(More)
Genetic subgrouping of gliomas has been emphasized recently, particularly after the finding of isocitrate dehydrogenase 1 (IDH1) mutations. In a previous study, we investigated whole-chromosome copy number aberrations (CNAs) of gliomas and have described genetic subgrouping based on CNAs and IDH1 mutations. Subsequently, we classified gliomas using simple(More)
BACKGROUND 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. METHODS AND RESULTS Peripheral blood CD34+ and CD34- cells were(More)
023 Protoplanetary disks are believed to be the birthplaces of planets [1]. Among them, disks which have substantial infrared excesses but reduced uxes at wavelengths < 20 µm, i.e., transitional disks [2], could be related to the early phases of planet formation [3] and are therefore particularly important for understanding how, where, and when planets(More)