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Search Results: 1 - 10 of 489 matches for " Fumihiro Tajima "
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Sitting position improves consciousness level in patients with cerebral disorders  [PDF]
Takashi Moriki, Takeshi Nakamura, Daisuke Kojima, Hiroyoshi Fujiwara, Fumihiro Tajima
Open Journal of Therapy and Rehabilitation (OJTR) , 2013, DOI: 10.4236/ojtr.2013.11001
Abstract: Cerebral disorders are often associated with disturbance of consciousness. Since the latter could alter the prognosis of physical function, early improvement of consciousness level is important. The present study tested the hypothesis that sitting position improves disturbances of consciousness in patients with cerebral disorders. The subjects were 17 patients with cerebral disorders and disturbances of consciousness. The consciousness level was evaluated in supine position and following a change to sitting position. The consciousness level was evaluated by the Glasgow Coma Scale (GCS). The total, eye opening, and motor GCS scores were significantly higher in the sitting position compared with the supine position. In conclusions, changing from supine to sitting position improves consciousness level in patients with cerebral disorders.
Involuntary muscle spasm expressed as motor evoked potential after olfactory mucosa autograft in patients with chronic spinal cord injury and complete paraplegia  [PDF]
Koichi Iwatsuki, Toshiki Yoshimine, Yoshiyuki Sankai, Fumihiro Tajima, Masao Umegaki, Yu-Ichiro Ohnishi, Masahiro Ishihara, Koshi Ninomiya, Takashi Moriwaki
Journal of Biomedical Science and Engineering (JBiSE) , 2013, DOI: 10.4236/jbise.2013.69111
Abstract: Object: The efficacy of olfactory mucosa autograft (OMA) for chronic spinal cord injury has been reported. New activity in response to voluntary effort has been documented by electromyography (EMG), but the emergence of motor evoked potential (MEP) reflecting electrophysiological conductivity in the central nervous system, including the corticospinal pathway, after OMA, and the best indications for OMA, have not been clarified. Here, we report the emergence of MEPs after OMA and offer recom-mendations for appropriate indications based on the presence of involuntary muscle spasm (IMS). We used analysis of MEP to examine the efficacy of OMA for patients with complete paraplegia due to chronic spinal cord injury. To clarify the indications for OMA, we investigated the association of IMS and efficacy of OMA. Methods: Four patients, 3 men and 1 woman, were enrolled. The mean age of the cases was 30.3 ± 9.5 years (range, 19 to 40 years). All 4 cases were American Spinal Injury Association (ASISA) grade A. The mean duration from injury to OMA was 95.8 ± 68.2 months (range, 17 to 300 months). Samples of olfactory mucosa were removed, cut into smaller pieces, and grafted into the sites of spinal cord lesions after laminectomy. Postoperative subcutaneous fluid collection, postoperative meningitis, postoperative nosebleed, postoperative infection in the nasal cavity, impaired olfaction, neoplastic tissue overgrowth at the autograft site, new sensory disturbance, and involuntary muscle spasm were investigated as safety issues. Improvements in ASIA grade, variations in ASIA scores, EMG, SSEP, and improved urological function were evaluated as efficacy indicators. Results: There were no serious adverse events in this series. In 2 of the 4 cases, an improvement in motor function below the level of injury was recognized. In one, the motor score was 50 until 16 weeks after surgery, and it increased to 52 from 20 weeks after surgery. In the other, the motor score was 50 until 20 weeks after surgery, and it increased to 52 at 24 weeks after surgery with a further increase to 54 at 48 weeks after surgery. The emergence of MEP was recognized in the latter case at 96 weeks after surgery. The other 2 cases had no improvement in ASIA motor score. Both of these cases who showed improvements in the ASIA motor scores exhibited relative IMS compared with those who had no ASIA motor score recovery. Conclusions: We recognized the emergence of MEPs in a case with complete paraplegia due to chronic spinal cord injury after OMA. IMS
Balloon Dilation in Sporadic Inclusion Body Myositis Patients with Dysphagia
Ken-ya Murata, Ken Kouda, Fumihiro Tajima and Tomoyoshi Kondo
Clinical Medicine Insights: Case Reports , 2012, DOI: 10.4137/CCRep.S10200
Abstract: Here, we describe balloon catheter dilation at the upper esophageal sphincter (UES) in three sporadic inclusion body myositis (s-IBM) patients with dysphagia. Initially, we performed IVIg therapy, and, three months later, switched to balloon dilation therapy. A 12-Fr balloon catheter was inserted from the mouth under fluoroscopy and the balloon inflated at the UES. The catheter was pulled back and re-inserted several times. We examined videofluoroscopy (VF) and pressure at the oropharynx, hypopharynx and UES using computed pharyngoesophageal manometry (CPM). Before both therapies, the VF study revealed a very small amount of barium paste passing through the UES. After balloon dilation therapy, as well as IVIg, subjective complaints of dysphagia disappeared and the VF study revealed an increased amount of barium paste passing through the UES. We conclude that balloon dilation therapy is a complementary method for conventional dysphagia therapies in s-IBM patients with dysphagia.
Balloon Dilation in Sporadic Inclusion Body Myositis Patients with Dysphagia
Ken-ya Murata,Ken Kouda,Fumihiro Tajima,Tomoyoshi Kondo
Clinical Medicine Insights: Case Reports , 2013,
Comparison of the Effects of Flexion and Extension of the Thumb and Fingers on the Position and Cross-Sectional Area of the Median Nerve
Yasushi Toge, Yukihide Nishimura, Jeffrey R. Basford, Takako Nogawa, Midori Yamanaka, Takeshi Nakamura, Munehito Yoshida, Akira Nagano, Fumihiro Tajima
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0083565
Abstract: Objective To assess the separate effects of thumb and finger extension/flexion on median nerve position and cross-sectional area. Methods Ultrasonography was used to assess median nerve transverse position and cross-sectional area within the carpal tunnel at rest and its movement during volitional flexion of the individual digits of the hand. Both wrists of 165 normal subjects (11 men, 4 women, mean age, 28.6, range, 22 to 38) were studied. Results Thumb flexion resulted in transverse movement of the median nerve in radial direction (1.2±0.6 mm), whereas flexion of the fingers produced transverse movement in ulnar direction, which was most pronounced during flexion of the index and middle fingers (3.2±0.9 and 3.1±1.0 mm, respectively). Lesser but still statistically significant movements were noted with flexion of the ring finger (2.0±0.8 mm) and little finger (1.2±0.5 mm). Flexion of the thumb or individual fingers did not change median nerve cross-sectional area (8.5±1.1 mm2). Conclusions Volitional flexion of the thumb and individual fingers, particularly the index and middle fingers, produced significant transverse movement of the median nerve within the carpal tunnel but did not alter the cross-sectional area of the nerve. The importance of these findings on the understanding of the pathogenesis of the carpal tunnel syndrome and its treatment remains to be investigated.
Reliability of Power Spectral Analysis of Surface Electromyogram Recorded during Sustained Vastus Medialis Isometric Contraction in Assessment of Muscle Fatigability  [PDF]
Yuta Minoshima, Yukihide Nishimura, Hiroyuki Tsuboi, Hideyuki Satou, Yoshi-ichiro Kamijo, Hideki Arakawa, Yuichi Umezu, Fumihiro Tajima
Open Journal of Therapy and Rehabilitation (OJTR) , 2017, DOI: 10.4236/ojtr.2017.52005
Abstract: The aim of this study was to determine the within-day and between-days reliability of surface electromyographic (EMG) power spectral analysis in assessing fatigability of the vastus medialis (VM) muscle during knee and hip flexion under constant load application. The subjects were 13 healthy adult men free of knee abnormalities. Surface EMG was recorded from vastus medialis obliquus (VMO) and vastus medialis longus (VML) during sustained isometric contractions at 60% of maximal voluntary contraction until exhaustion on the leg press machine (static leg press test). Linear regression analysis was applied to median frequency (MF) time series to calculate initial MF and MF slope. For VMO and VML, the initial MF showed moderate to high reliability, while the MF slope showed high reliability (Intraclass correlation coefficient (ICC) = initial MF: 0.63 - 0.92, MF slope: 0.70 - 0.86). The results demonstrated that spectral analysis of surface EMG recording during isometric VM muscle contraction has high within-day and between-days reliability in the assessment of fatigability of the VMO and VML.
The impact of a sense of belonging on lethargy and career maturity  [PDF]
Fumihiro Omasu, Yuiko Takahashi
Open Journal of Preventive Medicine (OJPM) , 2013, DOI: 10.4236/ojpm.2013.36053
Abstract: In this study, the authors treated a combination of psychological apathy and decreased motivation as a tendency to lethargy, and implemented a survey into the tendency to lethargy demonstrated by students, in order to study the impact of a sense of belonging in the four relationships between the student and the people considered most likely to be interacted with during university life—those with family, friends at university, friends outside university and boyfriend/girlfriend. In addition, the authors implemented a survey and study that included additional categories relating to career maturity. The study was performed on 250 university students, using an anonymous questionnaire that graded responses using criteria to measure a sense of belonging, psychological apathy characteristics, areas of decreased motivation, and career maturity. The subjects were classified by the school year to which they belonged, their gender, and whether or not they had a boyfriend/girlfriend, and consideration was given to the relationship between psychological apathy, decreased motivation, career maturity and a sense of belonging. In terms of gender difference in regard to each of the criteria, partially, the study indicated that male students score significantly higher than female students in terms of a sense of belonging, females score significantly higher than males for decreased motivation in regard to classes, and males score significantly higher than females in relation to career maturity. No significant difference in scores was noted between males and females in relation to psychological apathy. The impact of a sense of belonging on psychological apathy, decreased motivation and career motivation was seen in the fact that across all categories, those students with a good relationship with friends at university had a suppressed level of decreased motivation in regard to university by the portions given in this document.

Extremely Long-Lived Charged Massive Particles as A Probe for Reheating of the Universe
Takayama, Fumihiro
High Energy Physics - Phenomenology , 2007, DOI: 10.1103/PhysRevD.77.116003
Abstract: We discuss the impact of charged massive particle big bang nucleosynthesis(CBBN) to explore the nature of the reheating of the Universe in the case that a new extremely long-lived charged massive particle(CHAMP) exists. If the mass of the CHAMP is within collider reach and it's lifetime is longer than $10^4$sec, the comparison between the CBBN prediction and observed $^6$Li abundances may indicate nonstandard reheating in the early Universe without relying on details of the decay properties. Even if the CHAMP mass is outside the reach of colliders, the cosmological considerations may provide a nontrivial hint for the existence of such very heavy long-lived CHAMPs from the late Universe if the daughter particles are the dominant component of the present dark matter. We consider a low reheating temperature model as an example of the nonstandard reheating scenarios.
Mouse Hepatitis Virus Receptor as a Determinant of the Mouse Susceptibility to MHV Infection
Fumihiro Taguchi
Frontiers in Microbiology , 2012, DOI: 10.3389/fmicb.2012.00068
Abstract: In this review, we report that the receptor of mouse hepatitis virus (MHV), carcinoembryonic antigen-related cell adhesion molecule 1 (CEACAM1), is an important determinant of mouse susceptibility to MHV infection. This finding was revealed by using mouse strains with two different allelic forms of the MHV receptor, Ceacam1a and Ceacam1b. Although previous studies indicated that susceptibility is determined by a single gene, Ceacam1, our recent work in gene-replaced mice with chimeric Ceacam1 pointed toward the involvement of other host factors (genes) in the susceptibility. Studies on mouse susceptibility to MHV, as well as the factors involved in their susceptibility, are overviewed.
The Impact of Family Relationships on the Smoking Habits of University Students  [PDF]
Fumihiro Omasu, Shiori Uemura, Sayaka Yukizane
Open Journal of Preventive Medicine (OJPM) , 2015, DOI: 10.4236/ojpm.2015.51002
Abstract: Smoking habits are thought to be strongly impacted by family relationships. In this study, we looked specifically at family relationships with the aim of finding effective anti-smoking education measures. We surveyed 290 university students in order to establish their current smoking habits, along with their family relationships from primary and junior high school until now. The results showed that students with one or more smokers in their family were clearly more likely to smoke. Furthermore, a poor relationship between the student’s parents and a poor relationship with his/her father are believed to have a causal relationship with the student smoking. In the section in which students were asked how often they were told to study, we found that students who smoked had been instructed to study a significantly higher number of times. It is believed that the stress experienced by students frequently told that they must study during their elementary or junior high school years leads to a tendency to smoke. Among the group of non-smokers, we found many who ate breakfast with their parents during elementary or junior high school, along with many who regularly went on holidays with their families. The lack of these things appears to distance parents from children and may be a factor regarding why children end up smoking. In this study, while no clear correlation was found between family relationships and smoking, several types of family relationships that may lead to smoking were suggested.
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