Shigehiko Ogoh

Summary

Publications

  1. ncbi request reprint Effects of acute hypoxia on cerebrovascular responses to carbon dioxide
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, Kawagoe shi, Saitama, Japan
    Exp Physiol 99:849-58. 2014
  2. ncbi request reprint Regional redistribution of blood flow in the external and internal carotid arteries during acute hypotension
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, Kawagoe shi, Saitama, Japan
    Am J Physiol Regul Integr Comp Physiol 306:R747-51. 2014
  3. pmc Face cooling with mist water increases cerebral blood flow during exercise: effect of changes in facial skin blood flow
    Taiki Miyazawa
    Center for Biomedical Engineering Research, Toyo University Kawagoe, Japan
    Front Physiol 3:308. 2012
  4. doi request reprint Differential effect of sympathetic activation on tissue oxygenation in gastrocnemius and soleus muscles during exercise in humans
    Masahiro Horiuchi
    Department of Biomedical Engineering, Toyo University, Kujirai 2100, Kawagoe City, Saitama 350 8585, Japan
    Exp Physiol 99:348-58. 2014
  5. ncbi request reprint Cerebral hypoperfusion modifies the respiratory chemoreflex during orthostatic stress
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, Kawagoe shi, Saitama, Japan
    Clin Sci (Lond) 125:37-44. 2013
  6. doi request reprint Effect of acute hypoxia on blood flow in vertebral and internal carotid arteries
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, 2100 Kujirai, Kawagoe shi, Saitama 350 8585, Japan
    Exp Physiol 98:692-8. 2013
  7. doi request reprint The effect of phenylephrine on arterial and venous cerebral blood flow in healthy subjects
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, Kawagoe shi, Saitama, Japan
    Clin Physiol Funct Imaging 31:445-51. 2011
  8. doi request reprint Limited value of novel pulmonary embolism biomarkers in patients with coronary atherosclerosis
    Henrik Gutte
    Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, Copenhagen University Hospital
    Clin Physiol Funct Imaging 31:452-7. 2011
  9. doi request reprint Kinetics of exercise-induced neural activation; interpretive dilemma of altered cerebral perfusion
    Taiki Miyazawa
    Department of Biomedical Engineering, Toyo University, 2100 Kujirai, Kawagoe shi, Saitama 350 8585, Japan
    Exp Physiol 97:219-27. 2012
  10. ncbi request reprint A decrease in spatially resolved near-infrared spectroscopy-determined frontal lobe tissue oxygenation by phenylephrine reflects reduced skin blood flow
    Shigehiko Ogoh
    From the Department of Biomedical Engineering, Toyo University, Kawagoe shi, Saitama Research Institute of Physical Fitness, Japan Women s College of Physical Education, Tokyo Department of Environmental Physiology for Exercise, Osaka City University Graduate School of Medicine Faculty of Health Sciences, Morinomiya University of Medical Sciences, Osaka, Japan Department of Anesthesia, The Copenhagen Muscle Research Center, University of Copenhagen, Copenhagen, Denmark and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
    Anesth Analg 118:823-9. 2014

Detail Information

Publications21

  1. ncbi request reprint Effects of acute hypoxia on cerebrovascular responses to carbon dioxide
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, Kawagoe shi, Saitama, Japan
    Exp Physiol 99:849-58. 2014
    ..These effects could limit the degree of hypocapnic vasoconstriction and may help to regulate cerebral blood flow and cerebral O2 homeostasis during acute periods of hypoxia. ..
  2. ncbi request reprint Regional redistribution of blood flow in the external and internal carotid arteries during acute hypotension
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, Kawagoe shi, Saitama, Japan
    Am J Physiol Regul Integr Comp Physiol 306:R747-51. 2014
    ..The peripheral vasculature of the ECA may, thus, be considered an important vascular bed for intracranial cerebral blood flow regulation...
  3. pmc Face cooling with mist water increases cerebral blood flow during exercise: effect of changes in facial skin blood flow
    Taiki Miyazawa
    Center for Biomedical Engineering Research, Toyo University Kawagoe, Japan
    Front Physiol 3:308. 2012
    ..095, P = 0.709). MAP was also increased by FC (Rest, +6.2 ± 1.4 mmHg; Exercise, +4.2 ± 1.2 mmHg). These findings suggest that the FC-induced increase in CBF during exercise could not be explained only by change in SkBF(face)...
  4. doi request reprint Differential effect of sympathetic activation on tissue oxygenation in gastrocnemius and soleus muscles during exercise in humans
    Masahiro Horiuchi
    Department of Biomedical Engineering, Toyo University, Kujirai 2100, Kawagoe City, Saitama 350 8585, Japan
    Exp Physiol 99:348-58. 2014
    ..Moreover, the blunting of sympathetic vasoconstriction during exercise is strongly related to metabolic demand; an effect that appears independent of fibre type composition...
  5. ncbi request reprint Cerebral hypoperfusion modifies the respiratory chemoreflex during orthostatic stress
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, Kawagoe shi, Saitama, Japan
    Clin Sci (Lond) 125:37-44. 2013
    ..An orthostatically induced decrease in CBF probably attenuated the ‘washout’ of CO(2) from the brain causing hyperpnoea following activation of the central chemoreflex...
  6. doi request reprint Effect of acute hypoxia on blood flow in vertebral and internal carotid arteries
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, 2100 Kujirai, Kawagoe shi, Saitama 350 8585, Japan
    Exp Physiol 98:692-8. 2013
    ..These findings suggest that acute hypoxia elicits an increase in posterior cerebral blood flow, possibly to maintain essential homeostatic functions of the brainstem...
  7. doi request reprint The effect of phenylephrine on arterial and venous cerebral blood flow in healthy subjects
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, Kawagoe shi, Saitama, Japan
    Clin Physiol Funct Imaging 31:445-51. 2011
    ....
  8. doi request reprint Limited value of novel pulmonary embolism biomarkers in patients with coronary atherosclerosis
    Henrik Gutte
    Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, Copenhagen University Hospital
    Clin Physiol Funct Imaging 31:452-7. 2011
    ..Recent research supports the efficacy of various plasma biomarkers in diagnosing pulmonary embolism (PE) including E-selectin, MMP-9, MPO, sVCAM-1, sICAM-1, adiponectin, hs-CRP and tPAI-1...
  9. doi request reprint Kinetics of exercise-induced neural activation; interpretive dilemma of altered cerebral perfusion
    Taiki Miyazawa
    Department of Biomedical Engineering, Toyo University, 2100 Kujirai, Kawagoe shi, Saitama 350 8585, Japan
    Exp Physiol 97:219-27. 2012
    ..These findings highlight the inverse relationship between cerebral blood flow and cerebral oxygenation as determined by NIRS, which has interpretive implications for the kinetics underlying exercise-induced neural activation...
  10. ncbi request reprint A decrease in spatially resolved near-infrared spectroscopy-determined frontal lobe tissue oxygenation by phenylephrine reflects reduced skin blood flow
    Shigehiko Ogoh
    From the Department of Biomedical Engineering, Toyo University, Kawagoe shi, Saitama Research Institute of Physical Fitness, Japan Women s College of Physical Education, Tokyo Department of Environmental Physiology for Exercise, Osaka City University Graduate School of Medicine Faculty of Health Sciences, Morinomiya University of Medical Sciences, Osaka, Japan Department of Anesthesia, The Copenhagen Muscle Research Center, University of Copenhagen, Copenhagen, Denmark and Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
    Anesth Analg 118:823-9. 2014
    ..We hypothesized that extracranial vasoconstriction explains the effect of phenylephrine on ScO2...
  11. pmc Blood flow distribution during heat stress: cerebral and systemic blood flow
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, Saitama, Japan
    J Cereb Blood Flow Metab 33:1915-20. 2013
    ..001). These findings indicate that heat stress modified the effect of Q on blood flows at each artery; the increased Q due to heat stress was redistributed to extracranial vascular beds. ..
  12. doi request reprint Enhanced open-loop but not closed-loop cardiac baroreflex sensitivity during orthostatic stress in humans
    Toshinari Akimoto
    Department of Biomedical Engineering, Toyo University, Kawagoe shi, Saitama Japan
    Am J Physiol Regul Integr Comp Physiol 301:R1591-8. 2011
    ..Moreover, under closed-loop conditions, spontaneous baroreflex analyses without external stimulation may not represent open-loop cardiac baroreflex characteristics during orthostatic stress...
  13. doi request reprint Elevated aerobic fitness sustained throughout the adult lifespan is associated with improved cerebral hemodynamics
    Damian M Bailey
    From the Neurovascular Research Laboratory, University of South Wales, UK D M B, C J M, J V B, D H, K J N the Department of Biomedical Engineering, Toyo University, Kawagoe shi, Saitama, Japan S O and the School of Health and Exercise Sciences, University of British Columbia Okanagan, Kelowna, Canada P N A
    Stroke 44:3235-8. 2013
    ..The present study examined to what extent cerebral hemodynamics are improved when training is sustained throughout the adult lifespan...
  14. pmc Influence of baroreflex-mediated tachycardia on the regulation of dynamic cerebral perfusion during acute hypotension in humans
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, Kawagoe shi, Saitama, Japan
    J Physiol 588:365-71. 2010
    ..028) and beta-1 adrenergic blockade conditions (P = 0.015), and was related with the attenuated tachycardia response (P = 0.015). These data indicate an important role of the cardiac baroreflex in dynamic CA...
  15. doi request reprint Impact of age on critical closing pressure of the cerebral circulation during dynamic exercise in humans
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, 2100 Kujirai, Kawagoe shi, Saitama 350 8585, Japan
    Exp Physiol 96:417-25. 2011
    ..Thus, ageing is associated with greater increases in cerebral vascular tone during low- and moderate-intensity dynamic exercise...
  16. doi request reprint The effect of oxygen on dynamic cerebral autoregulation: critical role of hypocapnia
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, 2100 Kujirai, Kawagoe shi, Saitama 350 8585, Japan
    J Appl Physiol (1985) 108:538-43. 2010
    ..Because hypocapnia is a consequence of hypoxic-induced chemoreflex activation, it may provide a teleological means to effectively maintain dynamic CA in the face of prevailing arterial hypoxemia...
  17. doi request reprint Estimation of cerebral vascular tone during exercise; evaluation by critical closing pressure in humans
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, 2100 Kujirai, Kawagoe shi, Saitama 350 8585, Japan
    Exp Physiol 95:678-85. 2010
    ..564) or adrenaline concentrations (right, P = 0.138; left, P = 0.108). We consider that an exercise-induced increase in cerebral vascular tone serves to protect the blood-brain barrier from the exercise-induced hypertension...
  18. ncbi request reprint Dynamic cerebral autoregulation during and after handgrip exercise in humans
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, 2100 Kujirai, Kawagoe shi, Saitama 350 8585, Japan
    J Appl Physiol (1985) 108:1701-5. 2010
    ..737). This finding indicates that static exercise and related elevations in blood pressure do not alter dynamic CA...
  19. ncbi request reprint Hyperthermia modulates regional differences in cerebral blood flow to changes in CO2
    Shigehiko Ogoh
    Department of Biomedical Engineering, Toyo University, Saitama, Japan
    J Appl Physiol (1985) 117:46-52. 2014
    ..04 ± 1.17 vs. 2.23 ± 1.03%/mmHg; P = 0.039) but that in the ECA was enhanced (0.45 ± 0.47 vs. 0.95 ± 0.61%/mmHg; P = 0.032). These results indicate that hyperthermia is capable of altering dynamic cerebral blood flow regulation. ..
  20. doi request reprint Skin blood flow influences cerebral oxygenation measured by near-infrared spectroscopy during dynamic exercise
    Taiki Miyazawa
    Center for Biomedical Engineering Research, Toyo University, 2100 Kujirai, Kawagoe, Saitama, 350 8585, Japan
    Eur J Appl Physiol 113:2841-8. 2013
    ..To determine the selectivity of NIRS to assess cerebral oxygenation and neural activation during exercise, we examined the influence of changes in forehead skin blood flow (SkBF(head)) on NIRS signals during dynamic exercise...
  21. doi request reprint Cerebral blood flow during exercise: mechanisms of regulation
    Shigehiko Ogoh
    Dept of Biomedical Engineering, Toyo Univ, 2100 Kujirai, Kawagoe shi, Saitama 350 8585, Japan
    J Appl Physiol (1985) 107:1370-80. 2009
    ..In addition, we examine how CBF regulation during exercise is altered by exercise training, hypoxia, and aging and suggest avenues for future research...