Publications by authors named "Hiroyuki Yoneda"

Background: During the mixed dentition period, masticatory performance may temporarily decline as deciduous teeth are replaced by permanent teeth. This may lead to an insufficient intake of chewy foods.

Objectives: This study aimed to clarify the characteristics of factors that affect masticatory performance during the dentition exchange period.

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Objective: This study aimed to verify the compatibility of masticatory performance tests using different two types of gummy jellies.

Background Data Discussing The Present Status Of The Field: Compatibility between the glucose concentration measuring method (GC) and 10-steps visual scoring method (VS), which are masticatory performance tests for diagnosing decreased masticatory function (DMF) in oral hypofunction and the use of different types of gummy jelly, has yet to be confirmed.

Materials And Methods: The participants consisted of 134 Japanese older people (51 men and 83 women).

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Purpose This study investigated the impact of the renewal of a removable prosthesis on the masticatory function by subjective and objective measures and its variation among the types of occlusal support.Methods Seventy-eight patients who received newly fabricated removable denture patients participated in this study. For the objective assessment, masticatory performance was measured using test gummy jelly.

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Purpose: To measure masticatory performance (MP) in partially edentulous patients when wearing removable partial dentures (RPDs) versus when not wearing RPDs, and to identify factors that could enable clinical evaluations related to differences in MP.

Materials And Methods: This study consisted of 87 partially edentulous patients (57 females, 30 males; mean age, 69.41 ± 8.

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The 2016 Kumamoto earthquake was the first disaster we experienced while pushing cancer medical collaboration systems under the second Basic Plan to Promote Cancer Control Programs.Soon after the earthquake, an earthquake investigation team comprising the representatives of several medical institutions was formed, and they performed a survey of the medical staff of every designated cancer hospital and other related institution.The importance of sharing information during disasters and the weaknesses of medical aspects and patients were clarified.

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The 2016 Kumamoto earthquake occurred while the cancer consultation support center was being developed at each designated cancer hospital under the second Basic Plan to Promote Cancer Control Programs. After the earthquake, an earthquake investigation team was organized that consisted of the representatives of several medical institutions and researched the cancer support system of every cancer-related institution. Many problems in the cancer consultation supporting system became apparent.

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Recent studies suggest that histamine-a regulator of the microcirculation-may play important roles in exercise. We have shown that the histamine-forming enzyme histidine decarboxylase (HDC) is induced in skeletal muscles by prolonged muscular work (PMW). However, histological analysis of such HDC induction is lacking due to appropriate anti-HDC antibodies being unavailable.

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Aims: Dietary habits are crucial factors affecting metabolic homeostasis. However, few animal experiments have addressed the effects of long-term feeding with soft food on parameters reflecting systemic health.

Main Methods: Using mice, we compared the effects of short (3 days) and long (17 weeks from weaning) feeding periods between powdered food and normal pellet food on the levels of blood glucose, serum levels of insulin, catecholamines, and corticosterone, blood pressure, and/or social interaction behaviors.

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Bruxism and/or clenching, resulting in fatigue or dysfunction of masseter muscles (MM), may cause temporomandibular disorders. Functional support of the microcirculation is critical for prolonged muscle activity. Histamine is a regulator of the microcirculation and is supplied by release from its stores and/or by de novo production via the induction of histidine decarboxylase (HDC).

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A rare case of gliosarcoma which arose in the temporal lobe of a 39-yearold man was reported. The gliomatous area of the tumor showed ependymal differentiation, and also contained immature neuroectodermal tissue resembling a primitive neuroectodermal tumor (PNET) in addition to an ordinary glioblastomatous component. Tumor cells in the PNET-like component were immunoreactive for synaptophysin, CD99, neurogenin 3, and α-internexin, but not for glial fibrillary acidic protein (GFAP), Class III-β tubulin, or Neu N.

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We performed 3D-CT angiography (3D-CTA) with contrast injection to a feeding artery through a selectively introduced catheter into the intercostal artery in a patient with spinal hemangioblastoma. It revealed a relative three-dimensional (3D) anatomy between a tumor body, feeding arteries, draining veins, and surrounding vertebrae with superior resolution to 3D-CTA with intravenous contrast injection. This observation was used for preoperative planning facilitating tumor removal, through reconstructed 3D fly-through animation providing intraoperative identification and obliteration of feeding arteries.

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