1,939 results match your criteria: "Kyushu University Graduate School[Affiliation]"

Objectives: The purpose of the present study was to investigate the differential impact of disease activity and severity on functional status and patient satisfaction in rheumatoid arthritis (RA) using cluster analysis on data from the FRANK registry.

Methods: Data from 3,619 RA patients in the FRANK registry were analysed. Patients were grouped using hierarchical and k-means cluster analyses based on age, physician's global assessment (PhGA), patient's pain assessment (PtPA), and Steinbrocker stage.

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  • Anticholinergic drugs may lead to cognitive impairment, and this study specifically examined their risk of causing dementia in older adults in Japan compared to beta-3 agonists.
  • The study involved over 1.4 million participants, with nearly 13,500 taking anticholinergics and around 24,700 using beta-3 agonists, all aged 65 and older with overactive bladder.
  • Results indicated that users of anticholinergic drugs had a 22% higher risk of developing dementia compared to those using beta-3 agonists, suggesting a significant association between anticholinergic use and increased dementia risk.
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Introduction: To assess the susceptibility of epidemic influenza viruses to the four most used neuraminidase inhibitors (NAIs) during the 2023-24 influenza season in Japan, we measured the 50 % inhibitory concentration (IC) of oseltamivir, peramivir, zanamivir, and laninamivir in virus isolates from the sample of 100 patients.

Methods: Viral isolation was done using specimens obtained before and after treatment, with the type/subtype determined by RT-PCR using type- and subtype-specific primers. IC values were determined by a neuraminidase inhibition assay using a fluorescent substrate.

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In this study, we investigated the measurable residual leukemic stem cell (MR-LSC) population after allogeneic stem cell transplantation (allo-SCT) for high-risk acute myeloid leukemia (AML), utilizing T-cell immunoglobulin mucin-3 (TIM-3) expression as a functional marker of AML leukemic stem cells (LSCs). Analysis of the CD34CD38 fraction of bone marrow cells immediately after achievement of engraftment revealed the presence of both TIM-3LSCs and TIM-3 donor hematopoietic stem cells (HSCs) at varying ratios. Genetic analysis confirmed that TIM-3 cells harbored patient-specific mutations identical to those found in AML clones, whereas TIM-3 cells did not, indicating that TIM-3CD34CD38 cells represent residual AML LSCs.

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Background: To evaluate whether sodium zirconium cyclosilicate (SZC) enables the uptitration of spironolactone without increasing the risk of hyper- and hypokalemia in patients with heart failure with reduced and mildly reduced ejection fraction (HFrEF and HFmrEF) and moderate/severe chronic kidney disease (CKD) who developed hyperkalemia during treatment with suboptimal spironolactone dose.

Methods: The REGISTA-K is a randomized, double-blind, placebo-controlled, multicenter trial that examined the efficacy and safety of SZC in uptitrating spironolactone without the occurrence of hyperkalemia or hypokalemia. A total of 266 patients with HFrEF and HFmrEF and hyperkalemia will be randomized in a 1:1 ratio to receive either SZC or placebo after treating hyperkalemia with SZC at 25 sites in Japan.

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  • - The study focused on myofibroblasts and how a vaccine targeting fibroblast activation protein (FAP) might help reduce cardiac fibrosis in mice with chronic cardiac stress.
  • - Mice were vaccinated with a FAP peptide while undergoing continuous treatment with angiotensin II and phenylephrine, resulting in a significant decrease in both cardiac fibrosis and the number of myofibroblasts.
  • - The findings suggest that the FAP vaccine is a promising therapeutic option for cardiac fibrosis without causing harmful side effects in other injury models, indicating its potential for future treatments.
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  • Percutaneous transluminal angioplasty (PTA) for peripheral artery disease often results in vascular dissections, increasing the need for additional interventions (target lesion revascularization or TLR).
  • A study using a decision-analytic model analyzed the clinical outcomes, costs, and quality of life impacts of using the Tack Endovascular System versus the standard PTA approach, showing lower TLR rates with the Tack-supported strategy.
  • The results suggest that focal stenting (using Tack) is cost-effective for non-severe dissections and may even save costs for severe cases while improving patient quality of life, highlighting potential economic benefits in managing dissections post-PTA.
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Background: Clinical data on patients infected with influenza B Victoria (BV) after the approval of baloxavir is lacking.

Methods: This observational study of the Japanese 2023-2024 influenza season analyzed data from 25 outpatients with A(H1N1)pdm09, 36 with A(H3N2), and 65 with BV. Viral samples were collected before and after administering an antiviral (70 patients received baloxavir and 56 received a neuraminidase inhibitor), on days 1, 5, and 10.

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Background: Postoperative shivering is mainly associated with low body temperature. However, postoperative shivering can develop even at normal or high core temperatures. This study aimed to investigate the factors associated with postoperative shivering in patients with maintained core temperature after surgery.

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According to the 2016 World Health Organization classification, a germline DEAD-box helicase 41 gene () mutation with myeloid neoplasms has been newly classified. The clinical course of acute myeloid leukemia (AML) with a germline mutation has not yet been clarified. In the early phase, this condition is slowly progressive, the rate of remission induction is high, and the prognosis is good.

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Background: The management of chronic thromboembolic pulmonary hypertension (CTEPH) has advanced significantly in recent years, thereby improving patient prognosis. However, the impact of cancer on the outcomes of patients with CTEPH under current treatment remains unclear. This study aimed to investigate the prevalence of cancer in patients with CTEPH and determine how comorbid cancer affects their prognosis and clinical course.

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Purpose: We validated claims-based algorithms using the International Classification of Diseases, Tenth Revision (ICD-10) to identify patients with the first-ever coronavirus disease (COVID-19) onset between May 2020 and August 2022.

Methods: The study cohort was comprised of residents of one municipality enrolled in a public insurance program. This study used data provided by the municipality, including residents' insurer-based medical claims data linked to the Health Center Real-time Information-Sharing System (HER-SYS).

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This study retrospectively compared outcomes of various allogeneic haematopoietic cell transplantation (allo-HCT) platforms in patients with adult T-cell leukaemia/lymphoma. Platforms included human leukocyte antigen (HLA)-haploidentical-related donors using post-transplant cyclophosphamide (PTCY), HLA-matched related donors (MRD), HLA-matched unrelated donors (MUD) and cord blood transplantation (CBT). Patients who underwent their first allo-HCT between 2016 and 2021 were included.

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Diabetic Mice Spleen Vulnerability Contributes to Decreased Persistence of Antibody Production after SARS-CoV-2 Vaccine.

Int J Mol Sci

September 2024

Department of Physiology, Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka 812-8582, Japan.

Article Synopsis
  • During the COVID-19 pandemic, patients with diabetes and obesity faced more severe health outcomes and lower vaccination efficacy compared to those without these conditions.
  • Our study explored how diabetes affects immune responses to the SARS-CoV-2 vaccine using diabetic mouse models, revealing lower antibody levels in both types of diabetic mice compared to healthy mice.
  • Despite these immune deficiencies, vaccination did not worsen diabetes-related complications, indicating the safety of the vaccine for diabetic individuals and highlighting mechanisms that might explain reduced antibody production in these patients.*
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  • - The study analyzed records of 47 patients with primary cardiac tumors from Kyushu University Hospital, finding that 13 (28%) were diagnosed with malignant tumors, including various sarcomas and lymphomas, highlighting the rarity of such cases.
  • - Cardiovascular complications were prevalent, with 77% of patients experiencing issues like heart dysfunction, arrhythmias, and right heart failure, often linked to the aggressive multimodal treatment involving surgery, chemotherapy, and radiotherapy.
  • - Two cases exemplified severe complications: one patient faced significant heart failure post-treatment, while another developed a heart block due to tumor placement, indicating the need for careful management to improve patient outcomes.
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Unlabelled: Evaluating SARS-CoV-2 viral loads in nasopharyngeal (NP) and saliva samples, factors affecting viral loads, and the performance of rapid antigen testing (RAT) have not been comprehensively conducted during SARS-CoV-2 Omicron epidemic. This prospective study included outpatients enrolled during Omicron variant period in Japan. Paired NP swab and saliva samples were collected to measure viral loads by reverse transcription-quantitative polymerase chain reaction (RT-qPCR).

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  • A single epithelial cell can divide and form a cyst, a key step in organ development; however, it starts with a temporary "inverted" polarity between the cell's membranes.
  • For proper cyst formation, cells must reorient their polarity, which involves the internalization of apical proteins and their transport to the area where cells connect, forming a lumen.
  • The proteins Rac1 and IQGAP1, activated by signals from the extracellular matrix, are crucial for this reorientation process, as they work together to promote endocytosis of apical proteins in epithelial cells during the two-cell stage.
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  • * The study explores the use of silkworm-baculovirus expression vector system (silkworm-BEVS) to produce virus-like particles (VLPs) representing nine NoV genotypes that are prevalent in Japan, which can potentially serve as vaccine candidates.
  • * Results indicated that the VLPs could be produced in large quantities and were confirmed through purification processes, supporting the potential for developing a multivalent vaccine to combat diverse NoV infections.
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  • Allogeneic hematopoietic stem cell transplantation (allo-HSCT) can lead to long-lasting remission in adult T-cell leukemia/lymphoma (ATL) patients, but there's a lack of research on post-transplant outcomes for younger patients (≤49 years).
  • A study found that patients aged <40 years had a significantly better overall survival rate (61.8%) compared to those aged 40-49 years (43.1%), indicating younger patients fare better post-transplant.
  • Moreover, while there were no major differences in survival outcomes between different conditioning regimens, the reduced-intensity conditioning (RIC) regimen resulted in lower non-relapse mortality compared to the myeloablative conditioning (MAC) regimen
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Aim: In this subanalysis of the EXPAND study, we evaluated the risks and benefits of rivaroxaban plus antiplatelet therapy (APT) for patients with non-valvular atrial fibrillation (NVAF) complicated by stable coronary artery disease (CAD), ischemic stroke, or peripheral artery disease (PAD).

Methods: From the EXPAND study population (n=7,141), patients with NVAF complicated by stable CAD (n=886), ischemic stroke (n=1,231), or PAD (n=160) were included. Patients complicated by any of them were set as ALL (n=2,030).

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Progranulin enhances the engraftment of transplanted human iPS cell-derived cerebral neurons.

Stem Cells Transl Med

November 2024

Department of Clinical Application, Center for iPS Cell Research and Application, Kyoto University, Kyoto, Japan.

Article Synopsis
  • Scientists are studying cerebral organoids (mini brains) to help people recover from severe brain injuries like strokes.
  • They believe waiting 1 week after an injury before transplanting these cells could improve healing because the brain is better prepared.
  • A special protein called rhPGRN helps the transplanted brain cells survive and grow better, which might lead to better recovery and rebuilding connections in the brain.
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Diffuse large B-cell lymphoma (DLBCL) is the most common subtype of lymphoma, accounting for 30% of non-Hodgkin lymphomas. Although comprehensive analysis of genetic abnormalities has led to the classification of lymphomas, the exact mechanism of lymphomagenesis remains elusive. The Ets family transcription factor, PU.

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Introduction: A public oral health screening, periodontal disease screening, has been implemented in Japan, but it remains unclear whether screening encourages subsequent regular dental visits. This study aimed to examine whether people who underwent periodontal disease screening were more likely to regularly visit dentists after undergoing the screening than before using a difference-in-differences (DID) approach.

Methods: This study used health care claims data of municipality residents who underwent periodontal disease screening in 2017 or 2018.

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A sustained calcium response mediated by IP3 receptor anchoring to the desmosome is essential for apoptotic cell elimination.

Curr Biol

October 2024

Department of Biology, Faculty of Sciences, Kyushu University, Fukuoka 819-0395, Japan; Department of Biochemistry, Kyushu University Graduate School of Medical Sciences, Fukuoka 812-8582, Japan. Electronic address:

Efficient elimination of apoptotic cells within epithelial cell sheets is crucial for preserving epithelial barrier integrity. It is well established that immediate neighbors of an apoptotic cell actively participate in its removal by enclosing it within a wall of actomyosin, pushing it out in a purse-string manner in a process called apical extrusion. Here, we found that sustained elevation of calcium ions in neighboring epithelial cells is necessary to generate the contractility required for apoptotic cell elimination.

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