1.Active Learning through an Integrated Curriculum: Making Use of Human Anatomy Practice
Hiroyuki Ichijo ; Tomoya Nakamura ; Yuichi Takeuchi ; Masahumi Kawaguchi
Medical Education 2016;47(6):343-351
Students always have many questions and problems during active participation. Here, we report an active learning course (AL) based on problems that medical students encountered in gross anatomy practice. This AL was implemented after the practice, consisting of a lecture, group discussions, resource hours, and presentation session to ensure exploratory learning. Based on a questionnaire survey, 75.1% of the students evaluated the AL as very valuable or valuable, indicating its usefulness. The AL not only complemented the anatomy course, but also directed the students toward other forms of basic and clinical learning. The results indicate that by making use of gross anatomy practice, the AL functions as a hub for horizontal and vertical integrations in medical education.
2.Power spectrum of heart rate fluctuations during incremental cycle exercise.
YOSHIO NAKAMURA ; KEIICHI TAMAKI ; MINORU SHINOHARA ; YUICHI KIMURA ; ISAO MURAOKA
Japanese Journal of Physical Fitness and Sports Medicine 1989;38(5):208-214
Spectral analysis was applied to investigate whether the system for control of heart rate (HR) is influenced by exercise intensity. Five healthy males performed incremental exercise on an electrically braked cycle ergometer until exhaustion. The work rate was increased at 12 W/min following 2 min of exercise at a constant load of 20 W. HR was measured every second from R-R intervals. The power spectrum was calculated every 10 s using the FFT method for 64 consecutive data points. Power spectra during 20 W exercise showed a similar pattern to those in previous reports on resting HR perturbations, Although interindividual differences were observed for the spectrum patterns related to exercise intensity, there was a characteristic pattern revealing dissipation of the spectral power above a frequency of 0.2 Hz for all subjects. This pattern was not maintained for more than 1 min in any of the subjects, and was followed by a semirandom pattern whose magnitude varied among the subjects. These results support the hypothesis that the cardiac pacemaker is influenced by exercise intensity, presumably due to sympatho-vagal interaction with the respiratory control system.
3.A Comparison between cyclists and noncyclists of joint torque of the lower extremities during pedaling.
HIDETOSHI HOSHIKAWA ; KEIICHI TAMAKI ; HIROSHI FUJIMOTO ; YUICHI KIMURA ; HIROKAZU SAITO ; YOSHIRO SATOH ; YOSHIO NAKAMURA ; ISAO MURAOKA
Japanese Journal of Physical Fitness and Sports Medicine 1999;48(5):547-558
The purpose of this study was to compare the effect between cyclists and noncyclists of pedal rates on ankle, knee, and hip joint torque during pedaling exercises. Six male cyclists (CY) and seven male noncyclists (NC) pedaled at 40, 60, 90 and 120 rpm with a power output of 200 W. The lower limb was modeled as three rigid segment links constrained to plane motion. Based on the Newton-Euler method, the equation for each segment was constructed and solved on a computer using pedal force, pedal, crank, and lower limb position data to calculate torque at the ankle, knee, and hip joints. The average planter flexor torque decreased with increasing pedal rates in both groups. The average knee extensor torque for CY decreased up to 90 rpm, and then leveled off at 120 rpm. These results were similar to NC. The average knee flexor torque in both groups remained steady over all pedal rates. The average hip extensor torque for CY decreased significantly up to 90 rpm where it showed the lowest value, but increased at 120 rpm. For NC, the average hip extensor torque did not decrease at 90 rpm compared with 60 rpm, and was significantly higher than CY at 120 rpm (CY : 28.1 ± 9.0 Nm, NC : 38.6 ± 6.7 Nm, p<0.05) . The average hip flexsor torque for NC at 120 rpm increased significanly from 90 rpm, and was significantly higher than CY (CY : 11.6±2.9 Nm, NC : 22.6±11.8 Nm, p<0.05) . These results suggest that it would be better for cyclists to select a pedal rate of between 90 to 110 rpm to minimize joint torque, and, as a result, reduce peripheral muscle fatigue.
4.A case of POEMS syndrome treated by acupuncture
Kaori ISHII ; Satoru YAMAGUCHI ; Hiroshi OMATA ; Tomokazu KIKUCHI ; Shuji OHNO ; Yuichi NAKAMURA
Journal of the Japan Society of Acupuncture and Moxibustion 2009;59(5):486-494
[Object]Any reports on acupuncture for patients with POEMS syndrome, which almost manifests disturbance of peripheral nerve in all cases and is known as a very rare disease together with disturbance of multiple organs, are not yet found. The present paper is concerned with a case report that improvement of symptoms and progress of ADL were brought out by acupuncture.
[Case]A sixty year-old man who was diagnosed as POEMS syndrome and received rehabilitation therapy after treatment with autologous peripheral blood stem cell transplantation complained of difficulty in walking with numbness in the lower legs at rest time and with numbness and muscular tension in the same sections after walking. Therefore, acupuncture was practiced once or twice per week for the patient in order to raise the threshold of pain and to relax muscular tension in the lower extremities.
[Results]After acupuncture, the patient could lengthen the walking distance, had reduced numbness in the soles and relaxation of muscular tension in the lower legs at rest time, and improved numbness after walking.
[Discussion and Conclusion]Acupuncture for a patient with POEMS syndrome resulted in improved symptoms and progress of ADL without severe side effects. From the above results, acupuncture is considered to be a useful therapeutic method used together with present medical treatment.
5.Effectiveness and Sustainability of Education about Incident Reporting at a University Hospital in Japan.
Noriko NAKAMURA ; Yuichi YAMASHITA ; Shinichi TANIHARA ; Chiemi MAEDA
Healthcare Informatics Research 2014;20(3):209-215
OBJECTIVES: The aim of this study was to evaluate the effectiveness and sustainability of educational interventions to encourage incident reporting. METHODS: This was a quasi-experimental design. The study involved nurses working in two gastroenterology surgical wards at Fukuoka University Hospital, Japan. The number of participants on each ward was 26 nurses at baseline. For the intervention group, we provided 15 minutes of education about patient safety and the importance of incident reporting once per month for six months. After the completion of the intervention, we compared incident reporting in the subsequent 12 months for both groups. Questionnaires about reasons/motives for reporting were administered three times, before the intervention, after the intervention, and six months after the intervention for both the intervention group and the control group. RESULTS: For the intervention group, incident reporting during the 6 months after the intervention period increased significantly compared with the baseline. During the same period, the reasons and motives for reporting changed significantly in the intervention group. The increase in reported incidents during the 6- to 12-month period following the intervention was not significant. In the control group, there was no significant difference during follow-up compared with the baseline. CONCLUSIONS: A brief intervention about patient safety changed the motives for reporting incidents and the frequency of incidents reported by nurses working in surgical wards in a university hospital in Japan. However, the effect of the education decreased after six months following the education. Regular and long-term effort is required to maintain the effect of education.
Education*
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Follow-Up Studies
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Gastroenterology
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Japan*
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Patient Safety
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Risk Management
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Surveys and Questionnaires
6.Effects of Pharmacist-led Narcotics Management in the Operating Room
Kazuyuki NAKAMURA ; Toshiyuki KUBOTA ; Hiroyuki MANSHIO ; Yuichi DOI ; Makiko ARAKAWA ; Eiji YONEYAMA ; Hiroshi YOSHIDA ; Kazumasa NEGITA ; Akio KATSUMI ; Mitsue OKADA ; Satomi SAEKI ; Makoto HATTA
Journal of the Japanese Association of Rural Medicine 2014;63(1):19-28
Since February, 2012, Anjo Kosei Hospital has embarked upon a new scheme for efficiently handling narcotics during surgical operations. For the purpose pharmacists are allowed to enter the operating room for a while. At the same time, the implementation of digital record keeping for narcotics management tasks has started, making it possible to simplify the handling of a great number of patients. By reviewing the effects on narcotics handling and hours billed, we could determine the effectiveness of operating room pharmacist-led narcotics management at Anjo Kosei. Out of narcotics prescriptions (n=647) handled in the operating room for one month, 84.7% (548/647) was accounted for by prepared narcotics and 99.8% (646/647) by post-operation management. The introduction of the digital record system resulted in a reduction from 53.3±9.6 minutes to 39.6±6.3 minutes for narcotics preparation, and a reduction from 66.8±16.1 minutes to 41.1±13.5 minutes for post-operation management (p<0.01). It has added to the work efficiency and simplification of operations. Moreover, due to the intervention of pharmacists in the operating room, 92.3% of narcotics prescriptions was performed using the new management system within a relatively short time (80.8±18.4minutes). These data show that the introduction of the new scheme has resulted in more efficient management of narcotics at Anjo Kosei.
7.Angiopoietin-Like Protein 2 Induces Synovial Inflammation in the Facet Joint Leading to Degenerative Changes via Interleukin-6 Secretion
Kazuki SUGIMOTO ; Takayuki NAKAMURA ; Takuya TOKUNAGA ; Yusuke UEHARA ; Tatsuya OKADA ; Takuya TANIWAKI ; Toru FUJIMOTO ; Yuichi OIKE ; Eiichi NAKAMURA
Asian Spine Journal 2019;13(3):368-376
STUDY DESIGN: Experimental human study. PURPOSE: To determine whether angiopoietin-like protein 2 (ANGPTL2) is highly expressed in the hyperplastic facet joint (FJ) synovium and whether it activates interleukin-6 (IL-6) secretion in FJ synoviocytes. OVERVIEW OF LITERATURE: Mechanical stress-induced synovitis is partially, but significantly, responsible for degenerative and subsequently osteoarthritic changes in the FJ tissues in patients with lumbar spinal stenosis (LSS). However, the underlying molecular mechanism remains unclear. IL-6 is highly expressed in degenerative FJ synovial tissue and is responsible for local chronic inflammation. ANGPTL2, an inflammatory and mechanically induced mediator, promotes the expression of IL-6 in many cells. METHODS: FJ tissues were harvested from five patients who had undergone lumbar surgery. Immunohistochemistry for ANGPTL2, IL-6, and cell markers was performed in the FJ tissue samples. After cultured synoviocytes from the FJ tissues were subjected to mechanical stress, ANGPTL2 expression and secretion were measured quantitatively using real-time quantitative reverse-transcription–polymerase chain reaction and enzyme-linked immunosorbent assay (ELISA), respectively. Following ANGPTL2 administration in the FJ synoviocytes, anti-nuclear factor-κB (NF-κB) activation was investigated using immunocytochemistry, and IL-6 expression and secretion were assayed quantitatively with or without NF-κB inhibitor. Moreover, we assessed whether ANGPTL2-induced IL-6 modulates leucocyte recruitment in the degenerative process by focusing on the monocyte chemoattractant protein-1 (MCP-1) expression. RESULTS: ANGPTL2 and IL-6 were highly expressed in the hyperplastic FJ synovium samples. ANGPTL2 was co-expressed in both, fibroblast-like and macrophage-like synoviocytes. Further, the expression and secretion of ANGPTL2 in the FJ synoviocytes increased in response to stimulation by mechanical stretching. ANGPTL2 protein promoted the nuclear translocation of NF-κB and induced IL-6 expression and secretion in the FJ synoviocytes. This effect was reversed following treatment with NF-κB inhibitor. Furthermore, ANGPTL2-induced IL-6 upregulated the MCP-1 expression in the FJ synoviocytes. CONCLUSIONS: Mechanical stress-induced ANGPTL2 promotes chronic inflammation in the FJ synovium by activating IL-6 secretion, leading to FJ degeneration and subsequent LSS.
Chemokine CCL2
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Enzyme-Linked Immunosorbent Assay
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Humans
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Immunohistochemistry
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Inflammation
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Interleukin-6
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Spinal Stenosis
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Stress, Mechanical
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Synovial Membrane
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Synovitis
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Zygapophyseal Joint
8.Intradiscal Injection of Autologous Platelet-Rich Plasma Releasate to Treat Discogenic Low Back Pain: A Preliminary Clinical Trial.
Koji AKEDA ; Kohshi OHISHI ; Koichi MASUDA ; Won C. BAE ; Norihiko TAKEGAMI ; Junichi YAMADA ; Tomoki NAKAMURA ; Toshihiko SAKAKIBARA ; Yuichi KASAI ; Akihiro SUDO
Asian Spine Journal 2017;11(3):380-389
STUDY DESIGN: Preliminary clinical trial. PURPOSE: To determine the safety and initial efficacy of intradiscal injection of autologous platelet-rich plasma (PRP) releasate in patients with discogenic low back pain. OVERVIEW OF LITERATURE: PRP, which is comprised of autologous growth factors and cytokines, has been widely used in the clinical setting for tissue regeneration and repair. PRP has been shown in vitro and in vivo to potentially stimulate intervertebral disc matrix metabolism. METHODS: Inclusion criteria for this study included chronic low back pain without leg pain for more than 3 months; one or more lumbar discs (L3/L4 to L5/S1) with evidence of degeneration, as indicated via magnetic resonance imaging (MRI); and at least one symptomatic disc, confirmed using standardized provocative discography. PRP releasate, isolated from clotted PRP, was injected into the center of the nucleus pulposus. Outcome measures included the use of a visual analog scale (VAS) and the Roland-Morris Disability Questionnaire (RDQ), as well as X-ray and MRI (T2-quantification). RESULTS: Data were analyzed from 14 patients (8 men and 6 women; mean age, 33.8 years). The average follow-up period was 10 months. Following treatment, no patient experienced adverse events or significant narrowing of disc height. The mean pain scores before treatment (VAS, 7.5±1.3; RDQ, 12.6±4.1) were significantly decreased at one month, and this was generally sustained throughout the observation period (6 months after treatment: VAS, 3.2±2.4, RDQ; 3.6±4.5 and 12 months: VAS, 2.9±2.8; RDQ, 2.8±3.9; p<0.01, respectively). The mean T2 values did not significantly change after treatment. CONCLUSIONS: We demonstrated that intradiscal injection of autologous PRP releasate in patients with low back pain was safe, with no adverse events observed during follow-up. Future randomized controlled clinical studies should be performed to systematically evaluate the effects of this therapy.
Cytokines
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Female
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Follow-Up Studies
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Humans
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In Vitro Techniques
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Intercellular Signaling Peptides and Proteins
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Intervertebral Disc
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Intervertebral Disc Degeneration
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Leg
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Low Back Pain*
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Magnetic Resonance Imaging
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Male
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Metabolism
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Outcome Assessment (Health Care)
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Platelet-Rich Plasma*
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Regeneration
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Visual Analog Scale
9.Clinical and Imaging Features of Multiple System Atrophy: Challenges for an Early and Clinically Definitive Diagnosis
Hirohisa WATANABE ; Yuichi RIKU ; Kazuhiro HARA ; Kazuya KAWABATA ; Tomohiko NAKAMURA ; Mizuki ITO ; Masaaki HIRAYAMA ; Mari YOSHIDA ; Masahisa KATSUNO ; Gen SOBUE
Journal of Movement Disorders 2018;11(3):107-120
Multiple system atrophy (MSA) is an adult-onset, progressive neurodegenerative disorder. Patients with MSA show various phenotypes during the course of their illness, including parkinsonism, cerebellar ataxia, autonomic failure, and pyramidal signs. Patients with MSA sometimes present with isolated autonomic failure or motor symptoms/signs. The median duration from onset to the concomitant appearance of motor and autonomic symptoms is approximately 2 years but can range up to 14 years. As the presence of both motor and autonomic symptoms is essential for the current diagnostic criteria, early diagnosis is difficult when patients present with isolated autonomic failure or motor symptoms/signs. In contrast, patients with MSA may show severe autonomic failure and die before the presentation of motor symptoms/signs, which are currently required for the diagnosis of MSA. Recent studies have also revealed that patients with MSA may show nonsupporting features of MSA such as dementia, hallucinations, and vertical gaze palsy. To establish early diagnostic criteria and clinically definitive categorization for the successful development of disease-modifying therapy or symptomatic interventions for MSA, research should focus on the isolated phase and atypical symptoms to develop specific clinical, imaging, and fluid biomarkers that satisfy the requirements for objectivity, for semi- or quantitative measurements, and for uncomplicated, worldwide availability. Several novel techniques, such as automated compartmentalization of the brain into multiple parcels for the quantification of gray and white matter volumes on an individual basis and the visualization of α-synuclein and other candidate serum and cerebrospinal fluid biomarkers, may be promising for the early and clinically definitive diagnosis of MSA.
Biomarkers
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Brain
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Cerebellar Ataxia
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Cerebrospinal Fluid
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Dementia
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Diagnosis
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Early Diagnosis
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Hallucinations
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Humans
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Multiple System Atrophy
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Neurodegenerative Diseases
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Paralysis
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Parkinsonian Disorders
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Phenotype
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White Matter
10.An Update of Sports Medicine in Persons with Disabilities—Surviving Skeleton Muscles are Endocrine Organs—
Fumihiro TAJIMA ; Kazunari FURUSAWA ; Taro NAKAMURA ; Hidenobu OKUMA ; Yuichi UMEZU ; Makoto IDE ; Takashi MIZUSHIMA ; Mari UETA ; Takeshi NAKAMURA ; Takamitsu KAWAZU ; Hideki ARAKAWA ; Tomoyuki ITO ; Midori YAMANAKA ; Ken KOUDA ; Masaki GOTO ; Yusuke SASAKI ; Nami KANNO ; Takashi KAWASAKI ; Yasunori UMEMOTO ; Tomoya SHIMOMATSU ; Motohiko BANNO ; Hiroyasu UENISHI ; Hiroyuki OKAWA ; Ko ASAYAMA
The Japanese Journal of Rehabilitation Medicine 2010;47(5):304-309