Shin-ichi Boh-Oka

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A 54-year-old right-handed woman suffered transient aphasia and persistent amnesia caused by a subcortical hematoma in the left occipital lobe. She appeared to have aphasia, although it disappeared within 3 weeks. It is noteworthy that she had a lesion in the left retrosplenial region but exhibited both verbal and non-verbal memory impairment. However, her(More)
Leptin is a polypeptide, mainly produced in white adipose tissue, and increases sympathetic nerve activity. A few studies investigated leptin's effect on peripheral vessels. We examined the vasorelaxant effects of human leptin on rat arteries. Arterial rings were precontracted with 1 x 10(-6) mol/l of phenylephrine, and leptin was superfused. Leptin relaxed(More)
We report a patient with medial medullary infarction who could be diagnosed in an early stage, and we discuss the role of diffusion-weighted magnetic resonance imaging (MRI) for stroke rehabilitation. In the case of our patient, the infarction was difficult to diagnose because the patient had atypical features and a past history of head injury. Nonetheless,(More)
Constructional apraxia was evaluated in patients with aphasia using a cube-copying task. It was assessed whether quantitative assessment of cube copying could be used to estimate the performance intelligence quotient (IQ) according to neuropsychological tests. Abnormality in the cube-copying test was observed in 42 of 46 patients (91.3%). Performance(More)
To evaluate the mechanism of neurally mediated syncope (NMS), we investigated basal autonomic nerve function using a conventional pharmacological method and [123I]-metaiodobenzyl-guanidine (MIBG) single photon emission computed tomography (SPECT). Nine patients with NMS, whose syncope was induced by head-up tilt test with or without isoproterenol, underwent(More)
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