Morinomiya University of Medical Sciences

www.morinomiya-u.ac.jp
Osaka, Japan

Morinomiya University of Medical science is a private university in Osaka, Osaka, Japan, established in 2007. Wikipedia.

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Kitamura S.,Morinomiya University of Medical Sciences
Anatomical Science International | Year: 2017

This review provides an overview of comprehensive knowledge regarding the anatomy of the fasciae and fascial spaces of the maxillofacial and the anterior neck regions, principally from the standpoint of oral surgery, whose descriptions have long been puzzling and descriptively much too complex. The maxillofacial and the anterior neck regions are divided into four portions: the portions superficial and deep to the superficial layer of the deep cervical fascia (SfDCF) including its rostral extension to the face, the intermediate portion sandwiched by the splitting SfDCF, and the superficial portion peculiar to the face where the deep structures open on the body surface to form the oral cavity. Different fascial spaces are contained in each of the portions, although the spaces belonging to the portion of the same depth communicate freely with each other. The spaces of the superficial portions are adjacent to the oral cavity and constitute the starting point of deep infections from that cavity. The spaces of the intermediate portion lie around the mandible and occupy the position connecting the superficial and deep portions. Among these spaces, the submandibular and prestyloid spaces play an important role as relay stations conveying the infections into the deep portion. The spaces of the deep portion lie near the cervical viscera and communicate inferiorly with the superior mediastinum, among which the poststyloid space plays a role as a reception center of the infections and conveys the infections into the superior mediastinum particularly by way of the retrovisceral space and the carotid sheath. © 2017 Japanese Association of Anatomists


Ogoh S.,Toyo University | Nakahara H.,Morinomiya University of Medical Sciences | Ainslie P.N.,University of British Columbia | Miyamoto T.,Morinomiya University of Medical Sciences | Miyamoto T.,Japan National Cardiovascular Center Research Institute
Journal of Applied Physiology | Year: 2010

Hypoxia is known to impair cerebral autoregulation (CA). Previous studies indicate that CA is profoundly affected by cerebrovascular tone, which is largely determined by the partial pressure of arterial O2 and CO 2. However, hypoxic-induced hyperventilation via respiratory chemoreflex activation causes hypocapnia, which may influence CA independent of partial pressure of arterial O2. To identify the effect of O 2 on dynamic cerebral blood flow regulation, we examined the influence of normoxia, isocapnia hyperoxia, hypoxia, and hypoxia with consequent hypocapnia on dynamic CA. We measured heart rate, blood pressure, ventilatory parameters, and middle cerebral artery blood velocity (transcranial Doppler). Dynamic CA was assessed (n = 9) during each of four randomly assigned respiratory interventions: 1) normoxia (21% O2); 2) isocapnic hyperoxia (40% O2); 3) isocapnic hypoxia (14% O2); and 4) hypocapnic hypoxia (14% O2). During each condition, the rate of cerebral regulation (RoR), an established index of dynamic CA, was estimated during bilateral thigh cuff-induced transient hypotension. The RoR was unaltered during isocapnic hyperoxia. Isocapnic hypoxia attenuated the RoR (0.202 ± 0.003/s; 27%; P = 0.043), indicating impairment in dynamic CA. In contrast, hypocapnic hypoxia increased RoR (0.444 ± 0.069/s) from normoxia (0.311 ± 0.054/s; + 55%; P = 0.041). These findings indicated that hypoxia disrupts dynamic CA, but hypocapnia augments the dynamic CA response. Because hypocapnia is a consequence of hypoxicinduced chemoreflex activation, it may provide a teleological means to effectively maintain dynamic CA in the face of prevailing arterial hypoxemia. Copyright © 2010 American Physiological Society arterial blood pressure, middle cerebral artery blood velocity, humans.


Ogoh S.,Toyo University | Nakahara H.,Morinomiya University of Medical Sciences | Okazaki K.,Osaka City University | Bailey D.M.,University of South Wales | And 2 more authors.
Clinical Science | Year: 2013

The respiratory chemoreflex is known to be modified during orthostatic stress although the underlying mechanisms remain to be established. To determine the potential role of cerebral hypoperfusion, we examined the relationship between changes in MCA Vmean (middle cerebral artery mean blood velocity) and V̇E (pulmonary minute ventilation) from supine control to LBNP (lower body negative pressure;-45mmHg) at different CO2 levels (0, 3.5 and 5% CO2). The regression line of the linear relationship between V̇ E and PETCO2 (end-tidal CO2) shifted leftwards during orthostatic stress without any change in sensitivity (1.36±0.27 l/min per mmHg at supine to 1.06±0.21 l/min per mmHg during LBNP; P=0.087). In contrast, the relationship between MCA Vmean and PETCO2 was not shifted by LBNP-induced changes in PETCO2. However, changes in V̇E from rest to LBNP were more related to changes in MCA Vmean than changes in PETCO2. These findings demonstrate for the first time that postural reductions in CBF (cerebral blood flow) modified the central respiratory chemoreflex by moving its operating point. An orthostatically induced decrease in CBF probably attenuated the "washout" of CO2 from the brain causing hyperpnoea following activation of the central chemoreflex. © The Authors Journal compilation 2013 Biochemical Society.


Ogoh S.,Toyo University | Sato K.,Japan Women's College of Physical Education | Okazaki K.,Osaka City University | Miyamoto T.,Morinomiya University of Medical Sciences | And 3 more authors.
Journal of Cerebral Blood Flow and Metabolism | Year: 2013

The purpose of the present study was to assess the effect of heat stress-induced changes in systemic circulation on intra- and extracranial blood flows and its distribution. Twelve healthy subjects with a mean age of 22±2 (s.d.) years dressed in a tube-lined suit and rested in a supine position. Cardiac output (Q), internal carotid artery (ICA), external carotid artery (ECA), and vertebral artery (VA) blood flows were measured by ultrasonography before and during whole body heating. Esophageal temperature increased from 37.0±0.2°C to 38.4±0.2°C during whole body heating. Despite an increase in Q (59±31%, P<0.001), ICA and VA decreased to 83±15% (P=0.001) and 87±8% (P=0.002), respectively, whereas ECA blood flow gradually increased from 188±72 to 422±189 mL/minute (+135%, P<0.001). 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. © 2013 ISCBFM.


Ogoh S.,Toyo University | Sato K.,Japan Women's College of Physical Education | Okazaki K.,Osaka City University | Miyamoto T.,Morinomiya University of Medical Sciences | And 4 more authors.
Anesthesia and Analgesia | Year: 2014

BACKGROUND: Spatially resolved near-infrared spectroscopy-determined frontal lobe tissue oxygenation (Sco2) is reduced with administration of phenylephrine, while cerebral blood flow may remain unaffected. We hypothesized that extracranial vasoconstriction explains the effect of phenylephrine on Sco2. METHODS: We measured Sco2 and internal and external carotid as well as vertebral artery blood flow in 7 volunteers (25 [SD 4] years) by duplex ultrasonography during IV infusion of phenylephrine, together with middle cerebral artery mean blood velocity, forehead skin blood flow, and mean arterial blood pressure. RESULTS: During phenylephrine infusion, mean arterial blood pressure increased, while Sco 2 decreased by -19% ± 3% (mean ± SE; P = 0.0005). External carotid artery (-27.5% ± 3.0%) and skin blood flow (-25.4% ± 7.8%) decreased in response to phenylephrine administration, and there was a relationship between Sco2 and forehead skin blood flow (Pearson r = 0.55, P = 0.042, 95% confidence interval [CI], = 0.025-0.84; Spearman r = 0.81, P < 0.001, 95% CI, 0.49-0.94) and external carotid artery conductance (Pearson r = 0.62, P = 0.019, 95% CI, 0.13 to 0.86; Spearman r = 0.64, P = 0.012, 95% CI, 0.17-0.88). CONCLUSIONS: These findings suggest that a phenylephrine-induced decrease in Sco2, as determined by INVOS-4100 near-infrared spectroscopy, reflects vasoconstriction in the extracranial vasculature rather than a decrease in cerebral oxygenation. Copyright © 2014 International Anesthesia Research Society.


Furuya S.,Japan Society for the Promotion of Science | Furuya S.,Kwansei Gakuin University | Aoki T.,Prefectural University of Kumamoto | Nakahara H.,Morinomiya University of Medical Sciences | Kinoshita H.,Osaka University
Human Movement Science | Year: 2012

The present study addressed the effect of loudness and tempo on kinematics and muscular activities of the upper extremity during repetitive piano keystrokes. Eighteen pianists with professional music education struck two keys simultaneously and repetitively with a combination of four loudness levels and four tempi. The results demonstrated a significant interaction effect of loudness and tempo on peak angular velocity for the shoulder, elbow, wrist and finger joints, mean muscular activity for the corresponding flexors and extensors, and their co-activation level. The interaction effect indicated greater increases with tempo when eliciting louder tones for all joints and muscles except for the elbow velocity showing a greater decrease with tempo. Multiple-regression analysis and K-means clustering further revealed that 18 pianists were categorized into three clusters with different interaction effects on joint kinematics. These clusters were characterized by either an elbow-velocity decrease and a finger-velocity increase, a finger-velocity decrease with increases in shoulder and wrist velocities, or a large elbow-velocity decrease with a shoulder-velocity increase when increasing both loudness and tempo. Furthermore, the muscular load considerably differed across the clusters. These findings provide information to determine muscles with the greatest potential risk of playing-related disorders based on movement characteristics of individual pianists. © 2011 Elsevier B.V.


Morishita R.,Osaka University | Makino H.,Osaka University | Aoki M.,Morinomiya University of Medical Sciences | Hashiya N.,Osaka University | And 6 more authors.
Arteriosclerosis, Thrombosis, and Vascular Biology | Year: 2011

Objective-: To evaluate the safety and feasibility of intramuscular gene transfer using naked plasmid DNA-encoding hepatocyte growth factor (HGF) and to assess its potential therapeutic benefit in patients with critical limb ischemia. Methods and Results-: Gene transfer was performed in 22 patients with critical limb ischemia by intramuscular injection of HGF plasmid, either 2 or 4 mg, 2 times. Safety, ankle-brachial index, resting pain on a 10-cm visual analog scale, wound healing, and walking distance were evaluated before treatment and at 2 months after injection. No serious adverse event caused by gene transfer was detected over a follow-up of 6 months. Of particular importance, no peripheral edema, in contrast to that seen after treatment with vascular endothelial growth factor, was observed. In addition, the systemic HGF protein level did not increase during the study. At 2 months after gene transfer, the mean±SD ankle-brachial index increased from 0.46±0.08 to 0.59±0.13 (P<0.001), the mean±SD size of the largest ischemic ulcers decreased from 3.08±1.54 to 2.32±1.88 cm (P=0.007), and the mean±SD visual analog scale score decreased from 5.92±1.67 to 3.04±2.50 cm (P=0.001). An increase in ankle-brachial index by >0.1, a reduction in ulcer size by >25%, and a reduction in visual analog scale score by >2 cm at 2 months after gene transfer were observed in 11 (64.7%) of 17 limbs, 18 (72%) of 25 ulcers, and 8 (61.5%) of 13 limbs, respectively. Conclusion-: Intramuscular injection of naked HGF plasmid is safe and feasible and can achieve successful improvement of ischemic limbs as sole therapy. Copyright © 2011 American Heart Association. All rights reserved.


Sakai H.,Morinomiya University of Medical Sciences | Ohashi K.,Osaka University
BMC Women's Health | Year: 2013

Background: Previous studies of the relationship between the menstrual phases and smoking behavior have been problematic, so the association of menstrual phases with smoking behavior and correlations among smoking, psychological and physical conditions in each phase of the menstrual cycle are unclear.Methods: To accurately examine the association between menstrual phases and the amount of smoking (number of cigarettes smoked and breath CO concentration), craving of smoking on visual analogue scale (VAS), depression in the Center for Epidemiologic Studies Depression (CES-D) Scale, and menstrual phase-associated symptoms in the Menstrual Distress Questionnaire (MDQ), we improved various methodological issues, specifically, 1) Ovulation was confirmed by measuring the basal body temperature and identifying a urinary luteinizing hormone (LH) surge in two cycles; 2) The menstrual, follicular, and luteal phases were clearly defined for subjects with different menstrual cycles; 3) The breath CO concentration was measured every day. A notice was posted on public bulletin boards to recruit research subjects and twenty-nine young Japanese women smokers aged 19 to 25 years old were analyzed.Results: The number of cigarettes smoked was greater and the CO concentration was higher in the luteal phase than in the follicular phase. The levels of craving for smoking (VAS), depressiveness (CES-D), and menstrual phase-associated symptoms (MDQ) in the menstrual and luteal phases were higher than those in the follicular phase. The mean score for CES-D was 16 points (the cut-off value in screening for depression) or higher in the menstrual (16.9 ± 8.2) and luteal phases (17.2 ± 8.4).The number of cigarettes smoked and CO concentration were significantly correlated with the levels of craving for smoking, depressiveness, and menstrual phase-associated symptoms in all phases except for MDQ scores in follicular phase. The amount of smoking in the luteal phase was most strongly correlated with these symptoms.Conclusions: In the menstrual and luteal phases, young Japanese women smokers increased their amount of smoking and suffered from greater craving for smoking, depressiveness and menstrual phase-associated symptoms. The amount of smoking was correlated with these symptoms, but their cause-effect relationship has not been determined yet. © 2013 Sakai and Ohashi; licensee BioMed Central Ltd.


Izumi T.,Morinomiya University of Medical Sciences | Majima Y.,Osaka Prefecture University
Studies in Health Technology and Informatics | Year: 2016

The use of information technology in medical setting is becoming increasingly prevalent; therefore, it is necessary to examine education methods that promote improvements among nursing professionals in the ability to use nursing information. With a focus on the role of the head nurse, the aim of this study, which consisted of two separately organized workshops, was to examine the effectiveness of behavior modification to resolve workplace issues identified by nursing professionals. After participating in these workshops, all nursing professionals demonstrated an increased ability to use nursing information and effectively resolve issues through behavior modification. © 2016 IMIA and IOS Press.


Makino H.,Osaka University | Aoki M.,Morinomiya University of Medical Sciences | Hashiya N.,Osaka University | Yamasaki K.,Osaka University | And 5 more authors.
Arteriosclerosis, Thrombosis, and Vascular Biology | Year: 2012

OBJECTIVE-: As angiogenic growth factors can stimulate the development of collateral arteries, a concept called therapeutic angiogenesis, we performed a phase I/IIa open-label clinical trial using intramuscular injection of naked plasmid DNA encoding hepatocyte growth factor (HGF). We reported long-term evaluation of 2 years after HGF gene therapy in 22 patients with severe peripheral arterial disease. METHODS AND RESULTS-: Twenty-two patients with peripheral arterial disease or Buerger disease staged by Fontaine IIb (n=7), III (n=4), and IV (n=11) were treated with HGF plasmid, either 2 mg or 4 mg ×2. Increase in ankle-branchial pressure index >0.1 was observed in 11 of 14 patients (79 %) at 2 years after gene therapy and in 11 of the 17 patients (65%) at 2 months. Reduction in rest pain (>2 cm in visual analog scale) was observed in 9 of 9 patients (100%) at 2 years and in 8 of 13 (62%) patients at 2 months. At 2 years, 9 of 10 (90%) ischemic ulcers reduced by >25%, accompanied by a reduction in the size of ulcer. Severe complications and adverse effects caused by gene transfer were not detected in any patient throughout the period up to 2 years. CONCLUSION-: Overall, the present study demonstrated long-term efficacy of HGF gene therapy up to 2 years. These findings may be cautiously interpreted to indicate that intramuscular injection of naked HGF plasmid is safe, feasible, and can achieve successful improvement of ischemic limbs as sole therapy. © 2012 American Heart Association, Inc.

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