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External application of bradykinin to neuroblastoma X glioma hybrid NG108-15 cells produced a sustained depolarization preceded by a transient hyperpolarization. Bradykinin also increased the frequency of miniature end-plate potentials recorded from cultured striated muscle cells which had been innervated by NG108-15 cells. Parallelism between facilitative… (More)
The effect of transferrin on phosphoinositide metabolism was investigated in smooth muscle cells isolated from the porcine basilar artery. Ferric iron-bound transferrin induced a rapid increase in the level of inositol phosphates, the metabolic products of phosphoinositides through the phospholipase C pathway. Neither transferrin free of ferric iron nor… (More)
The effects of thromboxane A2 synthetase inhibitor and hyperdynamic therapy on delayed cerebral ischaemia following aneurysmal subarachnoid haemorrhage were evaluated in a series of twenty eight patients, who underwent aneurysmal clipping with 72 hours after subarachnoid haemorrhage. Postoperatively, 13 patients were treated with thromboxane A2 synthetase… (More)
Three cases of peduncular hallucinosis occurred in patients with aneurysmal subarachnoid hemorrhage. All patients underwent early clipping of the ruptured aneurysms of the anterior circulation. Several days after onset of subarachnoid hemorrhage, the patients complained of vivid visual hallucinations associated with abnormal sleep-waking rhythms, suggesting… (More)
The case of a 2-month-old boy with a congenital fistula of the dural carotid-cavernous sinus is presented. This is a rare vascular anomaly in infancy, and it may cause acute changes in vision. The child was initially followed up for 1 year to see if spontaneous thrombosis would occur. The symptoms persisted, however, and intravascular surgery using platinum… (More)
The structure of physiologically active substances, actinopyrones A, B and C, produced by Streptomyces pactum S12538 were determined on the basis of their spectral and chemical character. These substances were structurally related to piericidin A1.
The aim of our study was to simulate an effective diffusion-weighted imaging (DWI) pulse sequence and to evaluate the best b value in skeletal muscle. The evaluated pulse sequences were spin echo (SE), stimulated echo (STE), and gradient-recalled echo (GRE). The signal intensity changed in some DWI pulse sequences when the b value was changed. Moreover, the… (More)
PURPOSE We used diffusion tensor imaging (DTI) to evaluate anisotropic changes in skeletal muscle cells under external pressure. MATERIALS AND METHODS In 6 healthy volunteers, we compared DTI of the tibialis anterior (TA) and soleus (SOL) muscles under pressure. We performed imaging using a 1.5-tesla magnetic resonance (MR) scanner and diffusion-weighted… (More)
A case of a cervical cord compression by the vertebral artery within the spinal canal is reported in a 47-year-old man. The clinical presentation, radiologic features, and the operative treatment are summarized. The mechanism by which this lesion caused a severe cervical pain is discussed.
Many authors described the clinical importance of asymmetry of the laryngeal framework. However, its pathogenesis is generally unknown. In this study, CT images of 315 Japanese subjects were investigated to define the laryngeal position relative to the midline of the cervical vertebra. The CT slice of each subject within 5 mm cephalad of the cricoarytenoid… (More)