Tetsuo Yamashita

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BACKGROUND AND PURPOSE Brain swelling and/or hemorrhage can occur after carotid endarterectomy. This phenomenon is called the hyperperfusion syndrome. Several factors contribute to this syndrome. One is reperfusion in a maximally dilated vessel which means disappearance of cerebral reserve capacity (CRC). The aim of the study was to determine whether CRC(More)
COA-Cl (2Cl-C.OXT-A) is a recently developed adenosine-like nucleic acid analog that promotes angiogenesis via the mitogen-activated protein (MAP) kinases ERK1/2. Endothelial S1P1 receptor plays indispensable roles in developmental angiogenesis. In this study, we examined the functions of S1P1 in COA-Cl-induced angiogenic responses. Antagonists for S1P1,(More)
Deterioration of adipocyte function due to increased oxidative stress predisposes patients to metabolic disorders in advanced age. However, the roles of tumor suppressors in such conditions remain largely unknown. Therefore, we aimed to address their dynamics in aged adipocytes using a long-term culture model. We compared 3T3-L1 adipocytes at 17–19 days(More)
We previously demonstrated a potent angiogenic effect of a newly developed adenosine-like agent namedCOA-Cl.COA-Cl exerted tube forming activity in human umbilical vein endothelial cells in the presence of normal human dermal fibroblasts (NHDF). We therefore explored whether and howCOA-Cl modulates gene expression and protein secretion ofVEGF, a master(More)
The steroid receptor antagonist mifepristone is used as an anti-cancer agent, eliciting both cytostatic and cytotoxic effects on malignant cells. However, the metabolic effects of long-term treatment with mifepristone have remained unclear. The effects of mifepristone on insulin sensitivity and adiponectin secretion were evaluated both in in vivo and in(More)
We describe success with local thrombolytic therapy given to a patient 24 hours after onset of left middle cerebral artery (MCA) occlusion. A 53-year-old man was admitted 18 hours after onset of disorientation, motor aphasia, and right upper and lower limb weakness. Computed tomography (CT) showed an area of slightly decreased density in the deep left(More)
We are reporting two cases of vertebral artery occlusion resulting from cervical spine trauma. A 41-year-old man experienced vertigo and nausea 6 hrs after chiropractic manipulation. On admission, he was alert and demonstrated nystagmus, hypalgia of left leg, and right Horner sign. A MR image revealed infarction in the right cerebellar hemisphere. A MR(More)
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