Minoru Onozuka

Summary

Affiliation: Gifu University
Country: Japan

Publications

  1. ncbi request reprint Reduced mastication stimulates impairment of spatial memory and degeneration of hippocampal neurons in aged SAMP8 mice
    M Onozuka
    Department of Anatomy, 2nd Division, Gifu University School of Medicine, 40 Tsukasa Machi, Gifu, 500 8705, Japan
    Brain Res 826:148-53. 1999
  2. ncbi request reprint Age-related changes in brain regional activity during chewing: a functional magnetic resonance imaging study
    M Onozuka
    Department of Anatomy and Basic Neuroscience, Gifu University School of Medicine, Japan
    J Dent Res 82:657-60. 2003
  3. ncbi request reprint Mapping brain region activity during chewing: a functional magnetic resonance imaging study
    M Onozuka
    Department of Anatomy and Basic Neuroscience, Gifu University School of Medicine, Japan
    J Dent Res 81:743-6. 2002
  4. ncbi request reprint Changes in the septohippocampal cholinergic system following removal of molar teeth in the aged SAMP8 mouse
    Minoru Onozuka
    Department of Anatomy 2nd Division, Gifu University School of Medicine, 40 Tsukasa Machi, Japan
    Behav Brain Res 133:197-204. 2002
  5. ncbi request reprint Evidence for involvement of glucocorticoid response in the hippocampal changes in aged molarless SAMP8 mice
    Minoru Onozuka
    Department of Anatomy 2nd Division, School of Medicine, Gifu University, 40 Tsukasa Machi, 500 8705, Gifu, Japan
    Behav Brain Res 131:125-9. 2002
  6. ncbi request reprint Impairment of spatial memory and changes in astroglial responsiveness following loss of molar teeth in aged SAMP8 mice
    M Onozuka
    Department of Anatomy, Gifu University School of Medicine, Japan
    Behav Brain Res 108:145-55. 2000
  7. doi request reprint Optimal scan delays for multiphasic renal multidetector row computed tomography performed with fixed injection duration of contrast medium
    Yusuke Tsuge
    Department of Radiology, Gifu University School of Medicine, Gifu University Hospital, Gifu, Japan
    J Comput Assist Tomogr 33:101-5. 2009
  8. ncbi request reprint MDCT of the pancreas: optimizing scanning delay with a bolus-tracking technique for pancreatic, peripancreatic vascular, and hepatic contrast enhancement
    Hiroshi Kondo
    Department of Radiology, Gifu University School of Medicine, 1 1 Yanagido, Gifu 501 1194, Japan
    AJR Am J Roentgenol 188:751-6. 2007
  9. doi request reprint Diffusion-weighted imaging of the liver: optimizing b value for the detection and characterization of benign and malignant hepatic lesions
    Satoshi Goshima
    Department of Radiology, Gifu University School of Medicine, Gifu University Hospital, Gifu, Japan
    J Magn Reson Imaging 28:691-7. 2008
  10. doi request reprint Hepatic hemangioma: correlation of enhancement types with diffusion-weighted MR findings and apparent diffusion coefficients
    Satoshi Goshima
    Department of Radiology, Gifu University Hospital, Gifu, Japan
    Eur J Radiol 70:325-30. 2009

Collaborators

Detail Information

Publications33

  1. ncbi request reprint Reduced mastication stimulates impairment of spatial memory and degeneration of hippocampal neurons in aged SAMP8 mice
    M Onozuka
    Department of Anatomy, 2nd Division, Gifu University School of Medicine, 40 Tsukasa Machi, Gifu, 500 8705, Japan
    Brain Res 826:148-53. 1999
    ..These changes increased the longer the molarless condition persisted. The data suggest a possible link between reduced mastication and hippocampal neuron loss that may be one risk factor for senile impairment of spatial memory...
  2. ncbi request reprint Age-related changes in brain regional activity during chewing: a functional magnetic resonance imaging study
    M Onozuka
    Department of Anatomy and Basic Neuroscience, Gifu University School of Medicine, Japan
    J Dent Res 82:657-60. 2003
    ..The remaining two regions showed no significant differences with ages. These results indicate that chewing causes regional increases in neuronal activity in the brain, some of which are age-dependent...
  3. ncbi request reprint Mapping brain region activity during chewing: a functional magnetic resonance imaging study
    M Onozuka
    Department of Anatomy and Basic Neuroscience, Gifu University School of Medicine, Japan
    J Dent Res 81:743-6. 2002
    ..However, the signal was higher in the cerebellum and not significant in the thalamus, respectively. These results suggest that chewing causes regional increases in brain neuronal activities which are related to biting force...
  4. ncbi request reprint Changes in the septohippocampal cholinergic system following removal of molar teeth in the aged SAMP8 mouse
    Minoru Onozuka
    Department of Anatomy 2nd Division, Gifu University School of Medicine, 40 Tsukasa Machi, Japan
    Behav Brain Res 133:197-204. 2002
    ..The results suggest that the molarless condition in aged SAMP8 mice may enhance an age-related decline in the septohippocampal cholinergic system...
  5. ncbi request reprint Evidence for involvement of glucocorticoid response in the hippocampal changes in aged molarless SAMP8 mice
    Minoru Onozuka
    Department of Anatomy 2nd Division, School of Medicine, Gifu University, 40 Tsukasa Machi, 500 8705, Gifu, Japan
    Behav Brain Res 131:125-9. 2002
    ..The results suggest a link between the molarless condition and the glucocorticoid response, which may be involved in spatial learning deficits and hippocampal neuronal death in aged SAMP8 mice...
  6. ncbi request reprint Impairment of spatial memory and changes in astroglial responsiveness following loss of molar teeth in aged SAMP8 mice
    M Onozuka
    Department of Anatomy, Gifu University School of Medicine, Japan
    Behav Brain Res 108:145-55. 2000
    ..The data suggest that an impairment of spatial memory and changes in astroglial responsiveness occur following the loss of molar teeth in aged SAMP8 mice...
  7. doi request reprint Optimal scan delays for multiphasic renal multidetector row computed tomography performed with fixed injection duration of contrast medium
    Yusuke Tsuge
    Department of Radiology, Gifu University School of Medicine, Gifu University Hospital, Gifu, Japan
    J Comput Assist Tomogr 33:101-5. 2009
    ..The purpose of our study was to prospectively determine optimal scan delays for multiphasic imaging of the kidney performed with multidetector row computed tomography (CT) and fixed injection duration of intravenous contrast medium...
  8. ncbi request reprint MDCT of the pancreas: optimizing scanning delay with a bolus-tracking technique for pancreatic, peripancreatic vascular, and hepatic contrast enhancement
    Hiroshi Kondo
    Department of Radiology, Gifu University School of Medicine, 1 1 Yanagido, Gifu 501 1194, Japan
    AJR Am J Roentgenol 188:751-6. 2007
    ..The purpose of this study was to determine the optimal MDCT scanning delay for peripancreatic arterial, pancreatic parenchymal, peripancreatic venous, and hepatic parenchymal contrast enhancement with a bolus-tracking technique...
  9. doi request reprint Diffusion-weighted imaging of the liver: optimizing b value for the detection and characterization of benign and malignant hepatic lesions
    Satoshi Goshima
    Department of Radiology, Gifu University School of Medicine, Gifu University Hospital, Gifu, Japan
    J Magn Reson Imaging 28:691-7. 2008
    ..To determine the optimal b values required for diffusion-weighted (DW) imaging of the liver in the detection and characterization of benign and malignant hepatic lesions...
  10. doi request reprint Hepatic hemangioma: correlation of enhancement types with diffusion-weighted MR findings and apparent diffusion coefficients
    Satoshi Goshima
    Department of Radiology, Gifu University Hospital, Gifu, Japan
    Eur J Radiol 70:325-30. 2009
    ..To correlate hepatic hemangioma enhancement types in gadolinium-enhanced magnetic resonance (MR) images with diffusion-weighted MR findings and apparent diffusion coefficients (ADCs)...
  11. ncbi request reprint Multi-detector row CT of the kidney: optimizing scan delays for bolus tracking techniques of arterial, corticomedullary, and nephrographic phases
    Satoshi Goshima
    Department of Radiology, Gifu University School of Medicine, 1 1 Yanagido, Gifu 501 1193, Japan
    Eur J Radiol 63:420-6. 2007
    ..To determine optimal scan delays for renal arterial-, corticomedullary-, and nephrographic-phase imaging with multi-detector row computed tomography (MDCT) of the kidney using a bolus-tracking technique...
  12. ncbi request reprint MDCT of the liver and hypervascular hepatocellular carcinomas: optimizing scan delays for bolus-tracking techniques of hepatic arterial and portal venous phases
    Satoshi Goshima
    Department of Radiology, Gifu University School of Medicine, 1 1 Yanagido, Gifu 501 1194, Japan
    AJR Am J Roentgenol 187:W25-32. 2006
    ....
  13. doi request reprint Detection and grading for esophageal varices in patients with chronic liver damage: comparison of gadolinium-enhanced and unenhanced steady-state coherent MR images
    Satoshi Goshima
    Department of Radiology, Gifu University School of Medicine, 1 1 Yanagido, Gifu 501 1193, Japan
    Magn Reson Imaging 27:1230-5. 2009
    ..Nevertheless, endoscopy was confirmed to be mandatory in patients with esophageal varices suspected by MRI of the liver...
  14. doi request reprint Abdominal multidetector CT in patients with varying body fat percentages: estimation of optimal contrast material dose
    Hiroshi Kondo
    Department of Radiology, Kizawa Memorial Hospital, Gifu, Japan
    Radiology 249:872-7. 2008
    ..To determine if contrast material dose for abdominal multidetector computed tomography (CT), as determined by using body weight (BW), overestimates the amount of contrast material required in heavier patients...
  15. ncbi request reprint The molarless condition in aged SAMP8 mice attenuates hippocampal Fos induction linked to water maze performance
    Kazuko Watanabe
    Department of Physiology, Gifu University School of Medicine, Gifu 500 8705, Japan
    Behav Brain Res 128:19-25. 2002
    ..Gerontol. 2001; 36:283-95], the present results suggest the detrimental effects of a reduction in chewing on hippocampal processing in aged SAMP8 mice that would be linked with stress induced by the molarless condition...
  16. doi request reprint Evaluating local hepatocellular carcinoma recurrence post-transcatheter arterial chemoembolization: is diffusion-weighted MRI reliable as an indicator?
    Satoshi Goshima
    Department of Radiology, Gifu University Hospital, Gifu, Japan
    J Magn Reson Imaging 27:834-9. 2008
    ..To evaluate the detectability of local hepatocellular carcinoma (HCC) recurrence after transcatheter arterial chemoembolization (TACE) by diffusion-weighted MR imaging in correlation with those of gadolinium-enhanced MR imaging...
  17. doi request reprint Preoperative T staging of urinary bladder cancer: does diffusion-weighted MRI have supplementary value?
    Haruo Watanabe
    Department of Radiology, Gifu University Hospital, 1 1 Yanagido, Gifu, Japan
    AJR Am J Roentgenol 192:1361-6. 2009
    ..The objective of our study was to evaluate whether diffusion-weighted MRI has supplementary value in the preoperative T staging of urinary bladder cancer...
  18. doi request reprint CT of the pancreas: comparison of anatomic structure depiction, image quality, and radiation exposure between 320-detector volumetric images and 64-detector helical images
    Satoshi Goshima
    Department of Radiology, Gifu University School of Medicine, 1 1 Yanagido, Gifu 501 1193, Japan
    Radiology 260:139-47. 2011
    ..To prospectively compare 320-detector volumetric and 64-detector helical computed tomographic (CT) images of the pancreas for depiction of anatomic structures, image noise, and radiation exposure...
  19. ncbi request reprint Pancreas: optimal scan delay for contrast-enhanced multi-detector row CT
    Satoshi Goshima
    Department of Radiology, Gifu University School of Medicine, 1 1 Yanagido, Gifu 501 1193, Japan
    Radiology 241:167-74. 2006
    ..To prospectively determine optimal scan delays for multiphasic contrast medium-enhanced imaging of the pancreas with multi-detector row computed tomography (CT)...
  20. ncbi request reprint Gadolinium-enhanced multiphasic 3D MRI of the liver with prospective adaptive navigator correction: phantom study and preliminary clinical evaluation
    Masayuki Kanematsu
    Radiology Services, Gifu University Hospital, 1 1 Yanagido, Gifu, Gifu, Japan 501 1194
    AJR Am J Roentgenol 188:W309-16. 2007
    ....
  21. ncbi request reprint Depolarization-induced differentiation of PC12 cells is mediated by phospholipase D2 through the transcription factor CREB pathway
    Yoshiko Banno
    Department of Cell Signaling, Gifu University Graduate School of Medicine, Gifu, Japan
    J Neurochem 104:1372-86. 2008
    ..This is the first demonstration that PLD2 activation is involved in GAP-43 and synapsin I expression during depolarization-induced neuronal differentiation in PC12 cells...
  22. ncbi request reprint Projections of glutamate decarboxylase positive and negative cerebellar neurons to the pretectum in the cat
    Hiroyuki Nakamura
    Department of Morphological Neuroscience, Gifu University Graduate School of Medicine, Yanagido 1 1, Gifu 501 1194, Japan
    Neurosci Lett 403:30-4. 2006
    ..Our findings thus suggest the existence of two distinct cerebello-pretectal projection systems: one is mediated by GABAergic inhibitory projections, while the other is mediated by non-GABAergic, probably glutamatergic excitatory ones...
  23. pmc Age-related changes in trabecular and cortical bone microstructure
    Huayue Chen
    Department of Anatomy, Gifu University Graduate School of Medicine, 1 1 Yanagido, Gifu 501 1194, Japan
    Int J Endocrinol 2013:213234. 2013
    ..We specifically focus on the three-dimensional microstructure of the vertebrae, femoral neck, and distal radius, which are common osteoporotic fracture sites...
  24. ncbi request reprint Ventral lateral geniculate nucleus projects to the dorsal lateral geniculate nucleus in the cat
    Hiroyuki Nakamura
    Department of Morphological Neuroscience, Division of Neuroscience, Gifu University Graduate School of Medicine, Gifu, Japan
    Neuroreport 16:1575-8. 2005
    ....
  25. ncbi request reprint Optimizing scan delays of fixed duration contrast injection in contrast-enhanced biphasic multidetector-row CT for the liver and the detection of hypervascular hepatocellular carcinoma
    Masayuki Kanematsu
    Department of Radiology, Gifu University School of Medicine, Gifu, Japan
    J Comput Assist Tomogr 29:195-201. 2005
    ..To determine the optimal scan delay required for fixed duration contrast injection in contrast-enhanced biphasic multidetector-row CT for the liver and the detection of hypervascular hepatocellular carcinoma (HCC)...
  26. ncbi request reprint Gender-related changes in three-dimensional microstructure of trabecular bone at the human proximal tibia with aging
    Huayue Chen
    Department of Anatomy, Gifu University Graduate School of Medicine, Gifu, Japan
    Histol Histopathol 26:563-70. 2011
    ..These findings illustrate potential mechanisms underlying osteoporotic proximal tibial fracture...
  27. ncbi request reprint Occlusal disharmony induces spatial memory impairment and hippocampal neuron degeneration via stress in SAMP8 mice
    Kin ya Kubo
    Department of Oral Anatomy, Division of Oral Structure, Function and Development, Asahi University School of Dentistry, 1851 Hozumi, Mizuho, Gifu 501 0296, Japan
    Neurosci Lett 414:188-91. 2007
    ..The findings suggest that the bite-raised condition in aged SAMP8 mice induces hippocampal neuron loss, thereby leading to senile memory deficits...
  28. ncbi request reprint Effect of unpleasant loud noise on hippocampal activities during picture encoding: an fMRI study
    Yoshiyuki Hirano
    Department of Physiology and Neuroscience, Kanagawa Dental College, Yokosuka 238 8580, Japan
    Brain Cogn 61:280-5. 2006
    ..Therefore, noise should diminish memory by reducing hippocampal activity, which might be depressed by high amygdala activity...
  29. doi request reprint The bite-raised condition in aged SAMP8 mice induces dendritic spine changes in the hippocampal region
    Kin ya Kubo
    Department of Oral Anatomy, Division of Oral Structure, Function and Development, Asahi University School of Dentistry, 1851 1 Hozumi, Mizuho, Gifu 501 0296, Japan
    Neurosci Lett 441:141-4. 2008
    ..The results suggest that the bite-raised condition exacerbates the age-related spatial learning impairment, and that this may be due to the degeneration of hippocampal dendritic spines...
  30. ncbi request reprint Occlusal disharmony attenuates glucocorticoid negative feedback in aged SAMP8 mice
    Yukiko Ichihashi
    Department of Pediatric Dentistry, Asahi University School of Dentistry, Mizuho, Japan
    Neurosci Lett 427:71-6. 2007
    ..These findings suggest that the bite-raised condition in aged SAMP8 mice decreases GR and GRmRNA, which impairs the hypothalamic-pituitary-adrenal feedback inhibition, thereby leading to memory deficits...
  31. ncbi request reprint Molarless-induced changes of spines in hippocampal region of SAMP8 mice
    Kin ya Kubo
    Department of Oral Anatomy, Division of Oral Structure, Function and Development, Asahi University School of Dentistry, 1851 Hozumi, Mizuho, Gifu 501 0296, Japan
    Brain Res 1057:191-5. 2005
    ..The results suggest the involvement of the molarless condition in an attenuation of input activities in the hippocampal synapses...
  32. doi request reprint Effects of chewing in working memory processing
    Yoshiyuki Hirano
    Department of Biophysics, Molecular Imaging Center, National Institute of Radiological Sciences, Chiba, Japan
    Neurosci Lett 436:189-92. 2008
    ..These results suggest that chewing may accelerate or recover the process of working memory besides inducing improvement in the arousal level by the chewing motion...
  33. doi request reprint Abdomen: angiography with 16-detector CT--comparison of image quality and radiation dose between studies with 0.625-mm and those with 1.25-mm collimation
    Toshiharu Miyoshi
    Radiology Services, Gifu University Hospital, 1 1 Yanagido, 501 1194 Gifu, Japan
    Radiology 249:142-50. 2008
    ..To prospectively compare image quality and volume computed tomographic (CT) dose index (CTDI(vol)) of 16-detector CT angiograms of the abdomen acquired with 0.625-mm collimation with those of images acquired with 1.25-mm collimation...