140 research outputs found
Tsunami evacuation facility choice behavior model in flat area and rias area considering possibility to remain at home
The tsunami associated with the Great East Japan Earthquake that occurred on March 11, 2011 caused enormous damage to the coast of the Pacific Ocean. Since the occurrence of the Great Earthquake, it is urgent to develop tsunami evacuation countermeasures against the great tsunamis caused by the large earthquake that is expected to occur in the future in the country and coastal municipalities. In this study, we used logit model to estimate each parameters about the relationship between evacuees and buildings in flat area and rias area by using the evacuation behavior survey data of the Great East Japan Earthquake in 2011. The estimated results show that “whether the evacuation destination is home or not” is important when people choose the tsunami evacuation destination. Moreover, by comparing the moving in flat area and in rias area the difference between them becomes clear. By using these models, it enables to estimate the home selection probability in flat area and rias area
Anti-angiogenic effects of differentiation-inducing factor-1 involving VEGFR-2 expression inhibition independent of the Wnt/β-catenin signaling pathway
<p>Abstract</p> <p>Background</p> <p>Differentiation-inducing factor-1 (DIF-1) is a putative morphogen that induces cell differentiation in <it>Dictyostelium discoideum</it>. DIF-1 inhibits proliferation of various mammalian tumor cells by suppressing the canonical Wnt/β-catenin signaling pathway. To assess the potential of a novel cancer chemotherapy based on the pharmacological effect of DIF-1, we investigated whether DIF-1 exhibits anti-angiogenic effects <it>in vitro </it>and <it>in vivo</it>.</p> <p>Results</p> <p>DIF-1 not only inhibited the proliferation of human umbilical vein endothelial cells (HUVECs) by restricting cell cycle in the G<sub>0</sub>/G<sub>1 </sub>phase and degrading cyclin D1, but also inhibited the ability of HUVECs to form capillaries and migrate. Moreover, DIF-1 suppressed VEGF- and cancer cell-induced neovascularization in Matrigel plugs injected subcutaneously to murine flank. Subsequently, we attempted to identify the mechanism behind the anti-angiogenic effects of DIF-1. We showed that DIF-1 strongly decreased vascular endothelial growth factor receptor-2 (VEGFR-2) expression in HUVECs by inhibiting the promoter activity of human VEGFR-2 gene, though it was not caused by inhibition of the Wnt/β-catenin signaling pathway.</p> <p>Conclusion</p> <p>These results suggested that DIF-1 inhibits angiogenesis both <it>in vitro </it>and <it>in vivo</it>, and reduction of VEGFR-2 expression is involved in the mechanism. A novel anti-cancer drug that inhibits neovascularization and tumor growth may be developed by successful elucidation of the target molecules for DIF-1 in the future.</p
Differential effects of organic nitrates on arterial diameter among healthy Japanese participants with different mitochondrial aldehyde dehydrogenase 2 genotypes: randomised crossover trial
VanabinP, a novel vanadium-binding protein in the blood plasma of an ascidian, Ascidia sydneiensis same
Some ascidians accumulate high levels of the transition metal vanadium in their blood cells. The process of vanadium accumulation has not yet been elucidated. In this report, we describe the isolation and cDNA cloning of a novel vanadium-binding protein, designated as VanabinP, from the blood plasma of the vanadium-rich ascidian, Ascidia sydneiensis samea. The predicted amino acid sequence of VanabinP was highly conserved and similar to those of other Vanabins. The N-terminus of the mature form of VanabinP was rich in basic amino acid residues. VanabinP cDNA was originally isolated from blood cells, as were the other four Vanabins. However, Western blot analysis revealed that the VanabinP protein was localized to the blood plasma and was not detectable in blood cells. RT-PCR analysis and in situ hybridization indicated that the VanabinP gene was transcribed in some cell types localized to peripheral connective tissues of the alimentary canal, muscle, blood cells, and a portion of the branchial sac. Recombinant VanabinP bound a maximum of 13 vanadium(IV) ions per molecule with a Kd of 2.8 × 10-5 M. These results suggest that VanabinP is produced in several types of cell, including blood cells, and is immediately secreted into the blood plasma where it functions as a vanadium(IV) carrier
経動脈的化学塞栓術における予防的抗菌薬と肝膿瘍発症の関連 : 後方視的コホート研究
Objectives: Clinical evidence on prophylactic antibiotics for transarterial chemoembolization (TACE) to prevent liver abscess is limited because liver abscess is a rare event. This study aimed to analyse the association between prophylactic antibiotic use for TACE and the occurrence of liver abscess after TACE. Methods: Using the nationwide Diagnosis Procedure Combination database in Japan, we retrospectively identified patients who underwent TACE for hepatic cancer between July 2010 and March 2017. The primary outcome was liver abscess requiring procedural intervention within 30 days of TACE. Secondary outcomes included 30-day in-hospital mortality and length of stay. Propensity score matching was performed to adjust for potential confounding factors and compare outcomes between patients with and without prophylactic antibiotics. Results: Among 167 544 eligible patients, 134 712 received antibiotics and 32 832 did not. In the matched cohort of 29 211 pairs, the proportion of patients with liver abscess requiring procedural intervention was significantly lower in the antibiotics group than in the no-antibiotics group (0.08% vs. 0.22%, p 0.001; relative risk (95% confidence interval), 0.35 (0.22-0.57); absolute risk reduction, 0.0014 (0.0008-0.0021); and number needed to treat, 696 (476-1223)). There was no significant difference in 30-day in-hospital mortality between the groups. The length of stay was longer in the antibiotics group than in the no-antibiotics group (median, 10 vs. 9 days, p < 0.001). Conclusions: Prophylactic antibiotic use in patients undergoing TACE was associated with a reduced occurrence of liver abscess requiring procedural intervention.博士(医学)・甲第794号・令和3年6月25日Copyright © 2021 The Author(s). Published by Elsevier Ltd.. All rights reserved
心室中隔欠損症に対する小児心臓カテーテル検査における麻酔方法と重症合併症の関連
Pediatric cardiac catheterization requires unconsciousness and immobilization through
general anesthesia or sedation. This study aimed to compare the occurrence of severe complications
in pediatric diagnostic cardiac catheterization for ventricular septal defect between general anesthesia
and sedation performed under similar institutional environments. Using the Japanese Diagnosis
Procedure Combination database, we retrospectively identified pediatric patients (aged <2
years) who underwent diagnostic cardiac catheterization for ventricular septal defect between July
2010 and March 2019. The composite outcome was the occurrence of severe complications, including
catecholamine use and intensive care unit admission, within seven days after catheterization.
Overlap weighting based on propensity scores was used to adjust for patient- and hospital-level
confounding factors. We identified 3159 patients from 87 hospitals, including 930 under general
anesthesia and 2229 under sedation. The patient- and hospital-level baseline characteristics differed
between the groups. After adjustment, the proportion of patients with severe complications was
significantly higher in the general anesthesia group than in the sedation group (2.4% vs. 0.6%; risk
difference, 1.8% [95% confidence interval, 0.93–2.6%]). Severe complications occurred more frequently
in the general anesthesia group than in the sedation group. Further research on anesthetic
methods is necessary to assess the safety and accuracy of pediatric diagnostic cardiac catheterization.博士(医学)・甲第867号・令和5年3月15
Unmanipulated HLA 2–3 Antigen-Mismatched (Haploidentical) Stem Cell Transplantation Using Nonmyeloablative Conditioning
AbstractThe major problems in human leukocyte antigen (HLA)-mismatched stem cell transplantation (SCT) are graft failure and graft-versus-host disease (GVHD). Less-intensive regimens should be associated with a lower release of inflammatory cytokines and possibly less GVHD. The objective of this study was to investigate whether HLA-haploidentical SCT can be performed using nonmyeloablative conditioning and pharmacologic GVHD prophylaxis, including glucocorticoids. Using conditioning consisting of fludarabine, busulfan, and anti–T-lymphocyte globulin and GVHD prophylaxis consisting of tacrolimus and methylprednisolone (1 mg/kg/day), 26 patients who had hematologic malignancies in an advanced stage or with a poor prognosis underwent transplantation using peripheral blood stem cells from an HLA-haploidentical donor (2–3 antigen mismatches in the graft-versus-host [GVH] direction) without T-cell depletion. All patients except for 1 achieved donor-type engraftment. Rapid hematologic engraftment was achieved (neutrophils > 0.5 × 109/L on day 12 and platelets > 20 × 109/L on day 12), with full donor chimerism achieved by day 14. Fifteen patients did not develop acute GVHD clinically, and only 5 patients developed grade II GVHD. The recovery of CD4+ T cells was delayed compared with that of CD8+ T cells. Sixteen of the 26 patients are alive in complete remission. Four died of transplantation-related causes, and 6 died of progressive disease. These data suggest that nonmyeloablative conditioning, GVHD prophylaxis consisting of tacrolimus and methylprednisolone, and early therapeutic intervention for the GVH reaction allow stable engraftment and effectively suppress GVHD in HLA 2–3 antigen-mismatched SCT
Examination of changes in BMI during university student health checkups
大学メンタルヘルスの現場において,食事の問題や体重へのこだわりなどを主訴とする学生の相談は多く,摂食障害予備群といわれる摂食障害の発症リスクが高い学生が増加している。大学生においては,学生生活への適応が困難となるケースが多い。A大学では,摂食障害の予防や早期発見に向けて,入学時健康診断の際に身体測定や質問紙による摂食態度や気分の調査を行っている。本研究は,大学生の入学時から4年次までの健康診断の際のBody Mass Index( BMI),および入学時と4年次に実施した摂食態度調査票とBeck Depression Inventory‒II (BDI-II)の個人情報のないデータを用いて,入学時と4年次の健診結果を検討した。入学時の平均BMI は男子21.2±2.8,女子20.2±2.5であり,BMI 17.5未満の低体重者の割合は男子5.1%,女子10.6%であった。4年次の平均BMI は男子21.5±3.1,女子20.5±2.3であり,BMI 17.5未満の低体重者の割合は男子5.3%,女子7.1%であった。入学時と比較して,4年次の健診で体重変化を認めた学生は少なくなかった。定期検診時は体重変化を認める学生に対して指導を行うことが重要であると思われた。Many consultations with students suffering from aberrant eating behaviors and those worried about their weight are provided at campus mental health clinics. The number of university students who are at high risk for anorexia and are to thought to be potential candidates for an eating disorder is increasing, likely because it is often difficult for university students to adapt to student life. To improve the prevention and early detection of eating disorders, we assessed the change in body mass index (BMI) and prevalence of eating attitudes and depressive symptoms as determined by a questionnaire at health checkups for university students. There were not too many students whose weight had changed greatly at the 4th year health checkup as compared with that at their initial checkup on entering school. It is important to instruct students in whom changes in weight are recognized at periodic health checkups
Expression of enhancer of zeste homolog 2 correlates with survival outcome in patients with metastatic breast cancer: exploratory study using primary and paired metastatic lesions
Evaluation of immunostaining of EZH2 and Ki67. (DOC 52 kb
Support of faculty and staff members in student counseling: a questionnaire survey on student counseling training for faculty and staff members
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