Shinagawa-ku, Japan

Tokyo Health Care University
Shinagawa-ku, Japan

Tokyo Health Care University is a private university in Shinagawa, Tokyo, Japan. The predecessor of the school, a junior college, was established in 1996. It became coeducational in 2001 and then became a four-year college in 2005. Wikipedia.

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PubMed | Tokyo Health Care University, Suntory Global Innovation Center Ltd, University of Tokyo and Suntory Wellness Ltd
Type: Journal Article | Journal: Cerebrovascular diseases extra | Year: 2015

Arachidonic acid (ARA) is a precursor of various lipid mediators. ARA metabolites such as thromboxane A2 cause platelet aggregation and vasoconstriction, thus may lead to atherosclerotic disease. It is unclear whether dietary ARA influences the ARA-derived lipid mediator balance and the risk for atherosclerotic diseases, such as cerebral ischemia. Considering the function of ARA in atherosclerosis, it is reasonable to focus on the atherothrombotic type of cerebral ischemia risk. However, no systematic reviews or meta-analyses have been conducted to evaluate the effect of habitual ARA exposure on cerebral ischemia risk. We aimed to systematically evaluate observational studies available on the relationship between ARA exposure and the atherothrombotic type of cerebral ischemia risk in free-living populations.The PubMed database was searched for articles registered up to June 24, 2014. We designed a PubMed search formula as follows: key words for humans AND brain ischemia AND study designs AND ARA exposure. Thirty-three articles were reviewed against predefined criteria. There were 695 bibliographies assessed from the articles that included both ARA and cerebral ischemia descriptions. Finally, we identified 11 eligible articles and categorized them according to their reporting and methodological quality. We used the Strengthening the Reporting of Observational Studies in Epidemiology Statement (STROBE) checklist to score the reporting quality. The methodological quality was qualitatively assessed based on the following aspects: subject selection, ARA exposure assessment, outcome diagnosis, methods for controlling confounders, and statistical analysis. We did not conduct a meta-analysis due to the heterogeneity among the studies. All eligible studies measured blood ARA levels as an indicator of exposure. Our literature search did not identify any articles that evaluated dietary ARA intake and tissue ARA as assessments of exposure. Seven of the 11 eligible articles were considered to be of low quality. No articles reported a dose-dependent positive association between an increased cerebral ischemia risk and ARA exposure. However, most studies did not assess the risk in each subtype of cerebral ischemia, thus various etiological types of cerebral ischemia risk were involved in their results.We did not find a positive association between ARA exposure and cerebral ischemia risk. Eligible studies reported inconsistent findings: cerebral ischemia risk did not change or significantly decreased. We could not draw any conclusions due to the limited number of eligible high-quality studies. Further evidence from well-designed observational studies is required. Simultaneously, in order to develop effective preventive measures against cerebral ischemia, it is imperative to establish standardized definitions, nomenclatures, classifications, and diagnostic procedures.

PubMed | Tohoku Fukushi University, Tokyo Health Care University and Tohoku University
Type: | Journal: Japan journal of nursing science : JJNS | Year: 2016

Occupational commitment and job satisfaction are major predictors of the intention to continue nursing. This studys purpose was to verify the mediating effects of job satisfaction and three components of occupational commitment on the relationship between effort-reward imbalance and the intention to continue nursing.A self-report questionnaire was distributed to 3977 nurses by the nursing department of 12 hospitals in the Tohoku and Kanto districts of Japan in 2013. Of these, 1531 (response rate: 38.5%) nurses returned the questionnaire by mail and the complete data that were provided by 1241 nurses (valid response rate: 31.2%) were analyzed.Structural equation modeling showed that the effort-reward ratio had negative effects on job satisfaction and affective and normative occupational commitment. Job satisfaction and affective and normative occupational commitment had positive effects on the intention to continue nursing, whereas the effort-reward ratio had no direct effect on the intention to continue nursing. Continuance occupational commitment was not a mediator, but it positively influenced the intention to continue nursing.The findings suggest that it is important to increase job satisfaction and affective and normative occupational commitment in order to enhance their buffering effects on the relationship between job stress and the intention to continue nursing. Measures to increase continuance occupational commitment also would be an effective method of strengthening the intention to continue nursing. Improvements in these areas should contribute to an increase in nurses intention to continue nursing and prevent the loss of this precious human resource from the health sector.

PubMed | Juntendo University, Tohoku University, Tottori University, University of Tokyo and 3 more.
Type: | Journal: Leukemia research | Year: 2016

We aimed to evaluate care for leukemia and lymphoma patients during their last hospitalization from the perspective of the bereaved family. Questionnaires were sent to the bereaved family members of adult leukemia and lymphoma patients. We used the Care Evaluation Scale (CES) and asked the bereaved family members about care satisfaction and good death factors during the patients last week of life or last admission period. We distributed 177 questionnaires and were able to analyze 103 (58.2%) responses. Compared with the results of a previous study of palliative care units in Japan, the CES scores were significantly lower in 9 out of 10 domains. Assessment of the good death components revealed that only 33% of respondents agreed that the patient had been relieved as far as possible of pain and physical distress during the last week of life. Only 21.4% of respondents agreed that the patient had been relieved as far as possible of psychological distress, and 57% of caregivers were not satisfied with the level of care. During the last hospitalizations of leukemia or lymphoma patients, their care was insufficient and a good death was not often achieved. Improvement of end-of-life care for leukemia and lymphoma patients is needed.

Yamada M.,Japan National Institute of Health Sciences | Shimizu M.,Japan National Institute of Health Sciences | Shimizu M.,Tokyo Health Care University | Katafuchi A.,Japan National Institute of Health Sciences | And 5 more authors.
Molecular Microbiology | Year: 2012

Reactive oxygen species induce oxidative damage in DNA precursors, i.e. dNTPs, leading to point mutations upon incorporation. Escherichia coli mutT strains, deficient in the activity hydrolysing 8-oxo-7,8-dihydro-2′-deoxyguanosine 5′-triphosphate (8-oxo-dGTP), display more than a 100-fold higher spontaneous mutation frequency over the wild-type strain. 8-oxo-dGTP induces A to C transversions when misincorporated opposite template A. Here, we report that DNA pol III incorporates 8-oxo-dGTP ≈20 times more efficiently opposite template A compared with template C. Single, double or triple deletions of pol I, pol II, pol IV or pol V had modest effects on the mutT mutator phenotype. Only the deletion of all four polymerases led to a 70% reduction of the mutator phenotype. While pol III may account for nearly all 8-oxo-dGTP incorporation opposite template A, it only extends ≈30% of them, the remaining 70% being extended by the combined action of pol I, pol II, pol IV or pol V. The unique property of pol III, a C-family DNA polymerase present only in eubacteria, to preferentially incorporate 8-oxo-dGTP opposite template A during replication might explain the high spontaneous mutation frequency in E.coli mutT compared with the mammalian counterparts lacking the 8-oxo-dGTP hydrolysing activities. © 2012 Blackwell Publishing Ltd.

PubMed | Tokyo Health Care University, Teikyo University, Mitsui Memorial Hospital, University of Tokyo and The Institute for Adult Diseases Asahi Life Foundation
Type: Journal Article | Journal: BMJ open diabetes research & care | Year: 2016

Growing qualitative evidence reveals that many patients with chronic illnesses struggle to rebuild a positive self-image after diagnosis while attempting to find a balance between their current physical status and their ongoing social duties. One factor destabilizing patients identities is self-stigma, which seems to affect their behavioral goals through decreased self-efficacy. We hypothesized that self-stigma would be an independent factor, distinct from self-efficacy, for developing self-care behaviors in patients with type 2 diabetes.We used a consecutive sample of 209 outpatients with type 2 diabetes treated by endocrinologists at two university hospitals, one general hospital and one clinic. We performed multiple linear regression analyses to test the relationship between the patients activation levels for self-care behaviors (dependent variable) and self-stigma, self-efficacy, and depression symptoms (independent variables), adjusting for covariates involving sociodemographic and clinical characteristics.In a multiple linear regression model adjusted for prior covariates, there was significant association between self-stigma and activation levels for self-care behaviors in patients with type 2 diabetes (adjusted R(2)=0.26, F (12,196)=7.20, p<0.001). The standardized partial regression coefficient of self-stigma was -0.23 (p=0.001), whereas that of self-efficacy was 0.19 (p=0.007).Self-stigma is a negative independent factor, separate from self-efficacy, affecting the self-care behaviors of patients with type 2 diabetes. Self-stigma also has, at least, a similar impact on self-care behaviors to that of self-efficacy. To optimize treatment outcomes, patients self-stigma should be minimized, whereas their self-efficacy should be enhanced.

Bakry A.S.,King Abdulaziz University | Bakry A.S.,Tokyo Medical and Dental University | Bakry A.S.,Alexandria University | Takahashi H.,Tokyo Health Care University | And 2 more authors.
Dental Materials | Year: 2013

Objectives: Phosphoric acid-Bioglass 45S5 paste can create an interaction layer formed of calcium-phosphate crystals on the dentin surface. In this study, the efficiency of decreasing the dentin permeability exerted by the interaction layer formed between bioglass and dentin was compared to a resin-containing oxalate desensitizing agent (MS Coat One) and a resin-free oxalate desensitizing agent (Super Seal). Methods: Dentin permeability was measured before/after a brushing abrasion challenge, followed by examining the top and the fractured dentin surfaces with a field emission scanning electron microscope. Moreover, the chemical nature of the compounds formed on top of the dentin surface was examined using the field emission scanning electron microscope (FE-SEM) equipped with an energy-dispersive X-ray spectroscope (EDS), and the crystalline structures of the dentinal surfaces were examined by X-ray diffraction (XRD). Results: The results showed that application of 45S5 bioglass paste to dentin was able to occlude patent dentinal tubule orifices with a layer of calcium-phosphate crystals, while the oxalate containing agents were able to form small crystals which were found in dentinal tubule orifices and scattered along the superficial parts of the dentinal tubule lumen. The brushing-abrasion challenge significantly increased the permeability of dentin treated by Super Seal and MS Coat One, while these challenges had no significant effect on the dentin permeability of specimens treated with 45S5 bioglass paste. Significance: The new technique provided better durability than two products available on the market. Moreover, our previous research showed the biocompatibility of using this technique on dental pulp cells, suggesting that this technique can aid in treating dentin hypersensitivity cases. © 2012 Academy of Dental Materials. Published by Elsevier Ltd. All rights reserved.

PubMed | Tokyo Health Care University, Teikyo University and University of Tokyo
Type: Journal Article | Journal: Patient education and counseling | Year: 2016

To explore how patients with type 2 diabetes (T2DM) psychologically and behaviorally respond to internalized stigma through social stigma.A qualitative study with semi-structured interviews was recorded on audiotapes, transcribed verbatim, and analyzed using a grounded theory approach. Participants were adults aged 30-64 years and diagnosed with T2DM. A total of 26 patients participated.The qualitative data revealed that participants responses to social stigma, although varied, could be organized into a four-step process: Encountering Negative Experiences, Reevaluating the Self with Type 2 Diabetes, Reconstructing a Sense of Identity, and Maintaining Balance between Patient and Social Roles. When participants form a negative image of and relationship to their illness, they tend to internalize stigma, which can affect their sense of self-worth, attitude toward social participation, and compliance.Participants who internalize stigma tend to have a lower sense of self-worth and their social participation falls somewhere between severely limited (Social Avoidance) and highly active (Role Conflict). This can hinder devotion to their treatment regimen and affect their degree of compliance with physicians.Internalized stigma can be assessed by observing a patients illness-related negative self-image.

PubMed | Clinical Research Center, Clinical Center, University of Tokyo and Tokyo Health Care University
Type: Comparative Study | Journal: PloS one | Year: 2015

Pre-existing low-frequency resistance-associated variants (RAVs) may jeopardize successful sustained virological responses (SVR) to HCV treatment with direct-acting antivirals (DAAs). However, the potential impact of low-frequency (0.1%) mutations, concatenated mutations (haplotypes), and their association with genotypes (Gts) on the treatment outcome has not yet been elucidated, most probably owing to the difficulty in detecting pre-existing minor haplotypes with sufficient length and accuracy. Herein, we characterize a methodological framework based on Illumina MiSeq next-generation sequencing (NGS) coupled with bioinformatics of quasispecies reconstruction (QSR) to realize highly accurate variant calling and genotype-haplotype detection. The core-to-NS3 protease coding sequences in 10 HCV monoinfected patients, 5 of whom had a history of blood transfusion, and 11 HCV/HIV coinfected patients with hemophilia, were studied. Simulation experiments showed that, for minor variants constituting more than 1%, our framework achieved a positive predictive value (PPV) of 100% and sensitivities of 91.7-100% for genotyping and 80.6% for RAV screening. Genotyping analysis indicated the prevalence of dominant Gt1a infection in coinfected patients (6/11 vs 0/10, p = 0.01). For clinical samples, minor genotype overlapping infection was prevalent in HCV/HIV coinfected hemophiliacs (10/11) and patients who experienced whole-blood transfusion (4/5) but none in patients without exposure to blood (0/5). As for RAV screening, the Q80K/R and S122K/R variants were particularly prevalent among minor RAVs observed, detected in 12/21 and 6/21 cases, respectively. Q80K was detected only in coinfected patients, whereas Q80R was predominantly detected in monoinfected patients (1/11 vs 7/10, p < 0.01). Multivariate interdependence analysis revealed the previously unrecognized prevalence of Gt1b-Q80K, in HCV/HIV coinfected hemophiliacs [Odds ratio = 13.4 (3.48-51.9), p < 0.01]. Our study revealed the distinct characteristics of viral quasispecies between the subgroups specified above and the feasibility of NGS and QSR-based genetic deconvolution of pre-existing minor Gts, RAVs, and their interrelationships.

We sought to investigate whether treatment with ezetimibe in combination with statins improves coronary endothelial function in target vessels in coronary artery disease patients after coronary stenting.We conducted a multicenter, prospective, randomized, open-label, blinded-end point trial among 11 cardiovascular treatment centers. From 2011 to 2013, 260 coronary artery disease patients who underwent coronary stenting were randomly allocated to 2 arms (statin monotherapy (S) versus ezetimibe [10 mg/d]+statin combinational therapy [E+S]). We defined target vessel dysfunction as the primary composite outcome, which comprised target vessel failure during treatment and at the 6- to 8-month follow-up coronary angiography and coronary endothelial dysfunction determined via intracoronary acetylcholine testing performed in cases without target vessel failure at the follow-up coronary angiography. Coadministration of ezetimibe with statins further lowered low-density lipoprotein cholesterol levels (8323 mg/dL in S versus 6723 mg/dL in E+S; P<0.0001), with significant decreases in oxidized low-density lipoprotein and oxysterol levels. Among patients without target vessel failure, 46 out of 89 patients (52%) in the S arm and 34 out of 96 patients (35%) in the E+S arm were found to have coronary endothelial dysfunction (P=0.0256), and the incidence of target vessel dysfunction at follow-up was significantly decreased in the E+S arm (69/112 (62%) in S versus 47/109 (43%) in E+S; P=0.0059). A post hoc analysis of post-treatment low-density lipoprotein cholesterol-matched subgroups revealed that the incidence of both target vessel dysfunction and coronary endothelial dysfunction significantly decreased in the E+S arm, with significant reductions in oxysterol levels.The CuVIC trial (Effect of Cholesterol Absorption Inhibitor Usage on Target Vessel Dysfunction after Coronary Stenting) has shown that ezetimibe with statins, compared with statin monotherapy, improves functional prognoses, ameliorating endothelial dysfunction in stented coronary arteries, and was associated with larger decreases in oxysterol levels.

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