Kazuaki Masuda

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Marine yeasts were collected from coastal and deep sea areas in the Pacific Ocean and the Sea of Japan around central and northern Japan to prepare a novel type of natural seasoning. It was found that one of the marine yeasts collected from the Pacific Ocean off Hachinohe showed a high concentration of gamma-aminobutyric acid (GABA) in its extract, about(More)
The external muscle layer of the mammalian esophagus consists of striated muscles. We investigated the contractile properties of esophageal striated muscle by comparison with those of skeletal and cardiac muscles. Electrical field stimulation with single pulses evoked twitch-like contractile responses in esophageal muscle, similar to those in skeletal(More)
Four marine yeasts isolated from the Pacific Ocean off Japan (Siki No. 4, Siki No. 15, Hach No. 6, and Inub No. 11), which showed high gamma-aminobutyric acid (GABA) producing abilities, were identified and classified by physiological and biochemical characteristics and gene sequence analyses. Analysis of biochemical data suggested that while Siki No. 15(More)
STUDY DESIGN This study focused on the effects that abdominal belts have on the sagittal section of the abdominal and pelvic cavity during contraction of the trunk muscles. Fast magnetic resonance imaging was used during the Valsalva maneuver by 11 healthy men. OBJECTIVE To evaluate the effect of an abdominal belt on the geometric changes in the sagittal(More)
In near future, autonomous robots will be used in factories and offices. Since there are many stationary/moving obstacles in these environments, autonomous robots are require to make the path plans that can avoid moving objects such as people and robots. In this paper, we propose the path planning method to avoid the collisions with these obstacles. The(More)
Factors influencing clinical outcomes of osteosynthesis for elderly patients with Garden stage I and II femoral neck fractures are not well understood. To determine the factors influencing the clinical outcomes of in situ osteosynthesis in non-displaced femoral neck fractures in the elderly, radiographs and clinical data of patients were retrospectively(More)
Deficiency of α-d-mannosidase was found in two siblings with muscle weakness and spastic paraplegia. A biopsy of the vastus lateralis muscle was studied by light and electron microscopy. Cryostat sections showed mild fiber size variation but no necrosis. Semithin Epon sections revealed many vacuoles in the muscle cells and fibroblasts. Electron microscopy(More)
We report an unusual case of a giant femoral abscess caused by postoperative osteomyelitis after treating a fracture of the femoral shaft. The patient ignored it until the abscess began to interfere with knee flexion, but no symptoms of inflammation such as fever, pain or abnormal laboratory values were found. Within the marrow cavity, many plasma cells(More)