Publications by authors named "Kamimura T"

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.

View Article and Find Full Text PDF

Background: The purpose of this study was to reveal inter- and intra-rater reliability of the detailed evaluation of cognitive function by assistive robot for older adults.

Methods: We investigated the inter-rater and test-retest reliability. Neurobehavioral Cognitive Status Examination was conducted twice for each participant using an assistive robot and the examiner respectively (Experiment 1).

View Article and Find Full Text PDF
Article Synopsis
  • * A total of 103 patients, mostly with stenotic issues in the upper arm, showed high technical and clinical success rates, with favorable patency rates at 6 months.
  • * The research found low rates of adverse events (≤3%) and no device deficiencies, supporting the use of this stent graft as a safe and effective option for patients experiencing vascular access graft problems.
View Article and Find Full Text PDF
Article Synopsis
  • * Drugs were categorized based on name similarity (Name-Similar vs. Name-Dissimilar) and efficacy similarity (Efficacy-Same, Efficacy-Close, Efficacy-Far), revealing a notably higher error rate (36%) for pairs with similar names and the same efficacy.
  • * Findings suggest that drug name similarity significantly increases the risk of dispensing errors, indicating the m2-vwhtfrag index is a valuable tool for assessing these errors and helping to predict risks associated with new medications.
View Article and Find Full Text PDF
Article Synopsis
  • Venetoclax was approved in Japan for treating relapsed/refractory chronic lymphocytic leukemia (R/R CLL) and small lymphocytic leukemia (SLL) in September 2019, but there was limited clinical data on Japanese patients.
  • A post-marketing surveillance study analyzed 129 patients and found an overall response rate (ORR) of 57.0%, with higher rates in patients receiving rituximab and those with fewer prior treatments.
  • Adverse events occurred in 66.7% of patients, with common issues including decreased neutrophil and white blood cell counts, but these were manageable in practice, indicating venetoclax is both effective and safe for R/R CLL/S
View Article and Find Full Text PDF

Lipomatous pseudohypertrophy of the pancreas (LPH) is a rare disease in which the pancreatic parenchyma is replaced with mature adipose tissue. It is an idiopathic condition whose diagnosis is made based on histopathological analyses. Herein, we report the case of a 50-year-old male patient with a lipomatous mass in the head of the pancreas on computed tomography for close examination of a renal tumor.

View Article and Find Full Text PDF

Elevated triglyceride levels are associated with an increased risk of cardiovascular events despite guideline-based statin treatment of low-density lipoprotein cholesterol. Peroxisome proliferator-activated receptor α (PPARα) agonists exert a significant triglyceride-lowering effect. However, combination therapy of PPARα agonists with statins poses an increased risk of rhabdomyolysis, which is rare but a major concern of the combination therapy.

View Article and Find Full Text PDF

Purpose: To determine the optimal indocyanine green (ICG) dose required for assessing vascularity in the meniscus using ICG fluorescence-guided knee arthroscopy in a pig model.

Methods: A 3-month-old Japanese esculent female pig was used in this study. Intravenous injections of ICG (25 mg) were administered with 2.

View Article and Find Full Text PDF

Peptide-binding motif (PBM) model, a hierarchical clustering of HLA class I based on their binding specificity, was developed to predict immunopeptidome divergence. The effect of PBM mismatches on outcomes is unknown in HLA-haploidentical haematopoietic cell transplantation with post-transplant cyclophosphamide (PTCy-haplo). We therefore conducted a retrospective study using national registry data in PTCy-haplo.

View Article and Find Full Text PDF

Vascularity of the meniscus is the most important key to meniscal tear healing. However, blood supply to the meniscus is limited to approximately the outer 10% to 25% of the meniscus, known as the "red-red zone." The cyanine dye indocyanine green (ICG) is commonly used as a contrast imaging agent for visualizing vascularity in several medical fields.

View Article and Find Full Text PDF
Article Synopsis
  • * The results showed significant improvement in patient responses, with complete or better responses increasing from 19.9% after induction to 62.4% after maintenance, alongside a 3-year progression-free survival rate of 83.5% and overall survival rate of 92.5%.
  • * While the treatment was tolerable, around 30% of patients experienced severe side effects, and those with high-risk cytogenetics
View Article and Find Full Text PDF

Introduction: This study aimed to identify cases that require a three-dimensional-printed kidney model in robot-assisted partial nephrectomy.

Methods: We enrolled 93 patients undergoing robot-assisted partial nephrectomy for renal tumors at a single institution between November 2018 and May 2021. The endpoints were how often and how long the surgeon consulted the three-dimensional-printed model, determined using intraoperative video.

View Article and Find Full Text PDF

Objectives: This study aimed to examine the impact of prefracture cognitive impairment (CI) severity and postoperative delirium on recovery after hip fracture surgery in older patients.

Design: Prospective study with a 1-year follow-up.

Setting And Participants: We included 355 patients aged ≥80 years from 2 acute hospitals in Japan.

View Article and Find Full Text PDF
Article Synopsis
  • Volume overload is a serious issue for patients on peritoneal dialysis (PD), and traditional treatments often fall short, leading researchers to explore SGLT2 inhibitors as a potential new solution.
  • The EMPOWERED trial will investigate if the SGLT2 inhibitor empagliflozin can increase ultrafiltration volume in patients with chronic heart failure who use glucose-based PD solutions.
  • Results from this trial could provide valuable insights into fluid management and the impact of SGLT2 inhibitors on overall kidney function in PD patients.
View Article and Find Full Text PDF

Purpose: Whole-body silicon photomultiplier positron emission tomography (WB SiPM PET) could be used to diagnose breast cancer spread before lumpectomy. We aimed to investigate the method of measuring the tumor size by WB SiPM PET as a basis for diagnosing breast cancer spread in the breast.

Materials And Methods: We retrospectively reviewed 35 breast cancer lesions in 32 patients who underwent WB SiPM PET/CT in the prone position as preoperative breast cancer examinations from September 2020 to March 2022.

View Article and Find Full Text PDF
Article Synopsis
  • The human leukocyte antigen (HLA) supertype classification is linked to the outcomes of viral infections and autoimmune diseases, but its significance in single-unit cord blood transplantation (sCBT) was unclear.
  • A study of 1603 sCBT patients in Japan found that mismatches in the HLA-B supertype were associated with worse patient prognoses, leading to higher relapse rates.
  • Despite the importance of HLA-B supertype matches for improving patient outcomes, these mismatches did not affect the incidences of acute or chronic graft-versus-host disease.
View Article and Find Full Text PDF
Article Synopsis
  • Methotrexate can rarely cause lymphoproliferative disorders, but the exact mechanism is unknown, making diagnosis challenging with imaging alone.
  • A case study featured a 57-year-old Japanese woman who developed multiple lung and liver nodules while being treated with methotrexate for rheumatoid arthritis, initially suspected to be metastatic cancer due to her history.
  • A biopsy confirmed the nodules as methotrexate-associated lymphoproliferative disorders, and after stopping the medication, the nodules gradually shrank, highlighting the need to consider methotrexate-related issues in similar cases.
View Article and Find Full Text PDF

Haploidentical haematopoietic cell transplantation (haplo-HCT) using post-transplant cyclophosphamide (PTCY) as graft-versus-host disease (GVHD) prophylaxis is the standard of care for various haematological malignancies. The original PTCY dose after haplo-HCT was 100 mg/kg, but no dose-finding studies have been performed to identify the optimal dose. We performed a retrospective analysis to compare standard-dose PTCY (100 mg/kg) with reduced-dose PTCY (80 mg/kg): 969 in the standard-dose group and 538 in the reduced-dose group.

View Article and Find Full Text PDF

This prospective observational study aimed to assess the serological response and safety after the third booster shot of SARS-CoV-2 mRNA vaccines in 292 hematopoietic cell transplant (HCT) recipients. In our patients, mild systemic reactions were present in 10-40% and GVHD aggravation in 1.1%.

View Article and Find Full Text PDF

Epithelioid angiomyolipoma (EAML) is a rare variant of AML with malignant potential. It is occasionally difficult to distinguish EAML from renal cell carcinoma (RCC) on imaging. A 72-year-old woman was admitted to our hospital for the treatment of a left renal tumor with relatively high blood flow and a tumor thrombus extending to the inferior vena cava, suggesting RCC.

View Article and Find Full Text PDF

CT has become a commonly used diagnostic procedure in clinical practice, particularly in emergency healthcare delivery. Accordingly, the increase in CT usage has increased the likelihood of incidental detections (ID) of renal cell carcinomas (RCCs). This article discusses key points and limitations associated with the diagnosis and characterization of T1a RCC (≤4 cm in diameter) and shows how to improvise on the differentiation of T1a RCC with unenhanced CT (UE-CT).

View Article and Find Full Text PDF

Hypersensitivity reactions induced by nonionic iodine contrast media sometimes occur and can be life threatening. However, independent factors affecting their occurrence remain to be fully established. Therefore, the purpose of this study was to clarify independent factors affecting the occurrence of hypersensitivity reactions induced by nonionic iodine contrast media.

View Article and Find Full Text PDF

A 42-year-old man showed marked hypokalemia after kidney transplantation. He was diagnosed with hypertension and suffered from acute myocardial infarction at 33 and 38 years of age. At 40 years of age, hemodialysis was introduced.

View Article and Find Full Text PDF

RNA-targeted small molecules are a promising modality in drug discovery. Recently, we found that a fluoroquinolone derivative, KG022, can bind to RNAs with bulged C or G. To clarify the RNA specificity of KG022, we analyzed the effect of the base pair located at the 3'side of the bulged residue.

View Article and Find Full Text PDF
Article Synopsis
  • The study aimed to determine the prognostic significance of IKZF1 in adult patients with Philadelphia-positive acute lymphoblastic leukemia (Ph+ ALL).
  • A multicenter trial included 38 untreated Ph+ ALL patients, revealing high rates of complete hematological remission but no significant differences in survival rates based on IKZF1 status.
  • The findings indicated that IKZF1 status does not correlate with survival outcomes in Ph+ ALL patients treated with specific chemotherapy drugs, suggesting the need for further research on its prognostic value.
View Article and Find Full Text PDF