Yamagata Prefectural University of Health Sciences

www.yachts.ac.jp
Yamagata-shi, Japan

Yamagata Prefectural University of Health science is a public university in Yamagata, Yamagata, Japan. The predecessor of the school was founded in 1997, and it was chartered as a university in 2000. Wikipedia.

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Yuri T.,Yamagata Prefectural University of Health Sciences | Kuwahara Y.,Yamagata Prefectural University of Health Sciences | Fujii H.,Yamagata Prefectural University of Health Sciences | Kiyoshige Y.,Yamagata Prefectural University of Health Sciences
Clinical Anatomy | Year: 2017

The aim of this study was to investigate the functions of the six subregions of the supraspinatus muscle (SSP) determined by Kim et al. in Clin Anat 2007;20:648–655, using real-time tissue elastography (RTE). Twelve young male volunteers participated. The muscular hardness of the SSP was measured at rest and with contraction of the MMT3 in internal, neutral and external rotations. The SSP was functionally divided into five groups on the basis of the RTE results. These functional areas were roughly classified into three property groups: the anterior-superficial, anterior-middle, and anterior-deep subregions, which produce contractile force for abduction; the posterior-deep subregion, which produces contractile force for external rotation; and the posterior-superficial and posterior-middle subregions, which maintain tension. RTE was appropriate for measuring the functions of these muscular subregions. Clin. Anat. 30:347–351, 2017. © 2017 The Authors Clinical Anatomy published by Wiley Periodicals, Inc. on behalf of American Association of Clinical Anatomists. © 2017 The Authors Clinical Anatomy published by Wiley Periodicals, Inc. on behalf of American Association of Clinical Anatomists


Nankaku M.,Kyoto University | Akiyama H.,Kyoto University | Kanzaki H.,Yamagata Prefectural University of Health Sciences | Kakinoki R.,Kyoto University
HIP International | Year: 2012

Purpose: The purpose of this study was to identify factors related to walking efficiency in the early postoperative period of total hip arthroplasty (THA). Methods: The subjects of this study were 18 women who had undergone unilateral THA 4 weeks before and 18 healthy women as control. Using a force plate and a 3-D motion analyser, we mea- sured: 1) gait speed, stride length, cadence; 2) centre of mass displacement in the three directions; 3) asymmetry of the centre of mass movement in vertical direction; and 4) the total internal work per unit mass and distance walked (a negative index of walking efficiency). Results: Compared with healthy persons, THA patients showed significantly greater total internal work per unit mass and distance walked. The vertical centre of mass motion of the THA patients demon- strated an asymmetrical pattern. In THA patients, the stepwise multiple regression analysis selected the displacement and the asymmetrical vertical motion of centre of mass as the sole significant vari- able affecting walking efficiency (R2 = 0.81). Conclusions: Our findings indicated that rehabilitation programs that control the vertical movement of the centre of mass during gait are important to improve walking ability in the early post-operative phase after THA. © 2012 Wichtig Editore.


Kiyoshige Y.,Yamagata Prefectural University of Health Sciences | Kiyoshige Y.,Saiseikai Yamagata Hospital | Watanabe E.,Saiseikai Yamagata Hospital
Archives of Gerontology and Geriatrics | Year: 2015

The cause of falls is multifactorial, however, hip fractures in elderly would be prevented if accidental falls are predictable. We assessed magnetic resonance images of 38 patients with groin pain after taking a fall whose fracture could not be detected by plain X-rays, and 45 patients with no episode of falls. Their ages were over 65 years. Fatty degeneration of muscles, gluteus maximus, gluteus medius, gluteus minimus, obturator externus, adductor longus, rectus femoris and iliopsoas muscles, were evaluated by Goutallier's staging. Odds ratio was calculated by a logistic regression analysis allocating dependent variable for falls and independent variables for Goutallier's stage, age and gender. The fatty degeneration of gluteus maximus muscle was generalized, while that of gluteus minimus muscle was unevenly distributed, especially in anterior area. Gluteus minimus muscle initiated its fatty degeneration earlier than gluteus medius muscle. Odds ratio of falling was 3.2 (95% confidence intervals: 1, 14, 8.94) for Goutallier' stage of the gluteus medius muscle. Fatty degeneration of gluteus medius muscle has a crucial role in providing stability of the pelvis including hip joint. Evaluating fatty streaks in the gluteus minimus muscle could help give early indication to those who have a higher risk of falling. © 2014 Elsevier Ireland Ltd.


Minamisawa T.,Yamagata Prefectural University of Health Sciences | Sawahata H.,Niigata University | Takakura K.,Yamagata University | Yamaguchi T.,Yamagata University
Gait and Posture | Year: 2012

Stance instability is seen in late stage Parkinson's disease (PD). Stabilometer-based center-of-pressure (COP) evaluation is an easy, routine method for measuring postural control ability. Most of the stabilometer- and force plate-based studies on upright postural control have discussed horizontal COP component control. Previous studies on vertical component control have been few, and no fractal analysis-based study on the component has been reported. We aimed to show the influence of neurological changes and aging on the vertical component and the difference in fluctuation pattern behavior in healthy young and elderly subjects as well as Parkinsonian patients. Detrended fluctuation analysis was used to study characteristics of fluctuation of vertical ground reaction force. In the three groups, all scaling exponents (α, α1, α2), which are time-correlated data of vertical ground reaction force, had a value >0 and <0.5 (0<α<0.5). Additionally, α and α2 were significantly different between PD and the other groups. Significant differences were observed between PD and the other groups regarding RMS, maximum peak value, and coefficient of variance. We demonstrated statistically significant differences in vertical ground reaction force between Parkinsonian patients and the other groups, suggesting that a neurological influence with PD may be markedly reflected in the vertical ground reaction force. © 2011 Elsevier B.V.


Uchiyama M.,Tohoku University | Nishio Y.,Tohoku University | Yokoi K.,Tohoku University | Hirayama K.,Yamagata Prefectural University of Health Sciences | And 3 more authors.
Brain | Year: 2012

Patients rarely experience visual hallucinations while being observed by clinicians. Therefore, instruments to detect visual hallucinations directly from patients are needed. Pareidolias, which are complex visual illusions involving ambiguous forms that are perceived as meaningful objects, are analogous to visual hallucinations and have the potential to be a surrogate indicator of visual hallucinations. In this study, we explored the clinical utility of a newly developed instrument for evoking pareidolic illusions, the Pareidolia test, in patients with dementia with Lewy bodies-one of the most common causes of visual hallucinations in the elderly. Thirty-four patients with dementia with Lewy bodies, 34 patients with Alzheimer's disease and 26 healthy controls were given the Pareidolia test. Patients with dementia with Lewy bodies produced a much greater number of pareidolic illusions compared with those with Alzheimer's disease or controls. A receiver operating characteristic analysis demonstrated that the number of pareidolias differentiated dementia with Lewy bodies from Alzheimer's disease with a sensitivity of 100 and a specificity of 88. Full-length figures and faces of people and animals accounted for >80 of the contents of pareidolias. Pareidolias were observed in patients with dementia with Lewy bodies who had visual hallucinations as well as those who did not have visual hallucinations, suggesting that pareidolias do not reflect visual hallucinations themselves but may reflect susceptibility to visual hallucinations. A sub-analysis of patients with dementia with Lewy bodies who were or were not treated with donepzil demonstrated that the numbers of pareidolias were correlated with visuoperceptual abilities in the former and with indices of hallucinations and delusional misidentifications in the latter. Arousal and attentional deficits mediated by abnormal cholinergic mechanisms and visuoperceptual dysfunctions are likely to contribute to the development of visual hallucinations and pareidolias in dementia with Lewy bodies. © The Author (2012).


Kato N.,Yamagata University | Sugawara M.,Yamagata University | Maeda K.,Yamagata Prefectural University of Health Sciences | Hosoya N.,Yamagata University | Motoyama T.,Yamagata University
Pathology International | Year: 2011

Peutz-Jegher's syndrome (PJS) involves multiple organ systems and the development of hamartomatous, metaplastic, or neoplastic lesions of different cell lineages. Among them, glandular lesions are the most common, but their properties are obscure. We report here a 53-year-old woman with PJS who developed multiple hamartomatous polyps in the jejunum and mucinous glandular lesions in multiple organ systems: glandular metaplasia in the urinary bladder; lobular endocervical glandular hyperplasia in the uterine cervix; mucinous metaplasia in the right fallopian tube; mucinous adenoma in the left ovary. Histological and immunohistochemical analyses disclosed that all of the intestinal and extra-intestinal lesions were associated with pyloric gland metaplasia/differentiation across the organ systems. In the general population, the organs described above rarely or infrequently show pyloric gland phenotype, to say nothing of trans-organ involvement. It is strongly suggested that commitment to pyloric gland metaplasia/differentiation is closely associated with PJS. © 2011 The Authors. Pathology International © 2011 Japanese Society of Pathology and Blackwell Publishing Asia Pty Ltd.


Hirayama K.,Yamagata Prefectural University of Health Sciences
Brain and Nerve | Year: 2015

The basolateral limbic circuit (mediodorsal thalamic nucleus, anterior cingulated and prefrontal orbital cortex, anterior temporal cortex, and amygdala), the mediodorsal thalamic nucleus circuit, and part of the frontal-subcortical circuits (anterior cingulate and prefrontal orbital cortex, caudate nucleus and nucleus accumbens, globus pallidus, and mediodorsal thalamic nucleus), and the anterior cingulate and prefrontal orbital cortex circuit are crucial systems for forming and expressing emotions. There are reciprocal projections between the hypothalamus, anterior cingulate cortex and prefrontal orbital cortex, and between the hypothalamus and the amygdale. Therefore, destruction of the mediodorsal thalamic nucleus and the hypothalamus can cause abnormal expression of emotions. Recently, converging evidence suggests that the pulvinar nucleus in the posterior thalamus mediates emotional visual information processing through the colliculo-pulvino-amygdalar pathway and/or through the colliculo-pulvino-cortical pathways. These pathways seem to contribute to the unconscious and/or conscious fast processing of ecologically relevant stimuli. Therefore, destruction of the pulvinar can cause impaired reaction to visual threats, such as photographs of a cockroach and fearfull facial expressions, if the stimuli are exposed briefly.


PubMed | Japan Psychiatric Hospital Association, Japanese Society of Clinical Neuropsychopharmacology, Yamagata Prefectural University of Health Sciences and Niigata University
Type: Journal Article | Journal: PloS one | Year: 2016

Patients with schizophrenia have significantly shorter life expectancy than the general population, and a problem they commonly face is an unhealthy lifestyle, which can lead to obesity and metabolic syndrome. There is a very clear need to determine the prevalence of obesity, hypertension, hyperlipidemia, and diabetes mellitus which are components of metabolic syndrome in patients with schizophrenia, but there has been a paucity of large-scale studies examining this situation in Japan. The aim of our study was to address this need.We conducted a large-scale investigation of the prevalence of obesity, hypertension, hyperlipidemia, and diabetes mellitus using a questionnaire in 520 outpatient facilities and 247 inpatient facilities of the Japan Psychiatric Hospitals Association between January 2012 and July 2013. There were 7,655 outpatients and 15,461 inpatients with schizophrenia.The outpatients had significantly higher prevalence of obesity, hypertension, hypertriglyceridemia, hyper-LDL cholesterolemia, and diabetes mellitus than the inpatients. The prevalence of hypo-HDL cholesterolemia was higher in inpatients than outpatients. Age-specific analysis showed the prevalence of obesity, hypertension, hypertriglyceridemia, hyper-LDL cholesterolemia, and diabetes mellitus among outpatients to be 2- to 3-fold higher than among inpatients. In individuals aged 60 years, the prevalence of obesity and DM among outpatients was about 3-fold higher than among inpatients.Japanese outpatients with schizophrenia were more likely to have physical risk such as obesity, hypertension, hyperlipidemia, and diabetes mellitus than inpatients. The physical risk to patients with schizophrenia may be affected by environmental parameters, such as type of care. The physical risk to Japanese patients with schizophrenia demands greater attention.


PubMed | Japan Psychiatric Hospital Association, Hirosaki University, Yamagata Prefectural University of Health Sciences, Niigata University and Dokkyo Medical University
Type: Journal Article | Journal: Schizophrenia research | Year: 2016

Patients with schizophrenia have a higher risk of metabolic syndrome (MetS). MetS prevalence varies with ethnicity. Although environmental factors, such as lack of physical activity and unbalanced diet, can lead to MetS, these may differ between outpatients and inpatients with schizophrenia. The Japanese mental health care system differs from that in other countries. However, few studies have investigated the prevalence of MetS in Japanese patients with schizophrenia. Therefore, we conducted a nationwide survey to clarify the prevalence of MetS in Japanese outpatients and inpatients with schizophrenia. We investigated the risk of MetS by questionnaire in 520 facilities for outpatients and 247 facilities for inpatients. There were 7655 outpatients and 15,461 inpatients with schizophrenia. MetS prevalence was based on the National Cholesterol Education Program Adult Treatment Panel III (ATP III-A) and the Japan Society for the Study of Obesity (JASSO). The overall MetS prevalence in outpatients using the ATP III-A definition was 34.2%, with 37.8% in men and 29.4% in women, compared with 13.0% in inpatients, with 12.3% in men and 13.9% in women. MetS prevalence in outpatients was approximately 2- to 3-fold higher than in inpatients. In conclusion, MetS prevalence in Japanese outpatients was approximately 3-fold higher than in inpatients. Therefore, we should pay more attention to the risk of physical disease in Japanese patients with schizophrenia, considering the difference in health characteristics between outpatients and inpatients.


PubMed | Yamagata Prefectural University of Health Sciences
Type: | Journal: Neuroreport | Year: 2017

Pareidolias are visual illusions of meaningful objects, such as faces and animals, that arise from ambiguous forms embedded in visual scenes. Pareidolias and visual hallucinations have been suggested to have a common underlying neural mechanism in patients with dementia with Lewy bodies (DLB). The aim of the present study was to find an externally observable physiological indicator of pareidolias. Using a pareidolia test developed by Uchiyama and colleagues, we evoked pareidolias in patients with DLB and recorded the resultant changes in the diameters of their pupil. The time frequencies of changes in pupil diameters preceding pareidolic utterances and correct utterances by the patients, as well as correct utterances by healthy control participants, were analyzed by a fast Fourier transform program. The power at time frequencies of 0-0.46Hz was found to be greatest preceding pareidolic utterances in patients with DLB, followed by that preceding correct utterances in control participants, followed by that preceding correct utterances in patients with DLB. When the changes in power preceding the utterance were greater than the median value of correct utterances by the control group, the frequency of pareidolic utterances was significantly greater than that of correct utterances and when the changes were the same as or lower than the median value, the frequency of correct utterances was significantly greater than that of pareidolic utterances. Greater changes in power preceding the utterance at time frequencies of 0-0.46Hz may thus be an externally observable physiological indicator of the occurrence of pareidolias.This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal. http://creativecommons.org/licenses/by-nc-nd/4.0/.

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