Publications by authors named "Shiba N"

Nucleophosmin (NPM1) is a nucleolar protein and one of the most frequently mutated genes in acute myeloid leukemia (AML). In addition to the commonly detected frameshift mutations in exon12 (NPM1c), previous studies have identified NPM1 gene rearrangements leading to the expression of NPM1-fusion proteins in pediatric AML. However, whether the NPM1-fusions are indeed oncogenic and how the NPM1-fusions cause AML have been largely unknown.

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Unlabelled: In 2020, a 48-year-old male patient was admitted to our hospital due to unstable angina. In 2005, three first-generation sirolimus-eluting stents (1st-SESs) had been deployed to his right coronary artery (RCA). Over the past 10 years or so, the patient has been treated with single antiplatelet therapy using aspirin.

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Neuromuscular electrical stimulation (NMES) is widely used for improving muscle strength, preventing muscle atrophy, and decreasing pain. Recently, NMES has become a substitute for exercise therapy for metabolism improvement and functional capacity improvement. However, NMES has several disadvantages.

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Article Synopsis
  • - The study explores the molecular pathology of acute myeloid leukemia (AML), focusing on the discovery of important genetic markers for risk assessment and the need for new treatment approaches, especially for patients with relapsed or refractory AML.
  • - Researchers conducted ATAC-seq analysis on 10 AML patients, finding increased accessibility of the DOCK1 gene, which subsequently led to further testing on 369 pediatric AML patients to evaluate DOCK1 gene expression levels.
  • - Results showed that high DOCK1 expression (noted in 37% of patients) correlated with significantly poorer overall and event-free survival rates; experiments suggest that using a DOCK1 inhibitor may enhance the efficacy of cytarabine, a common AML treatment.
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The purpose of this study is to clarify whether a hip range of motion (ROM) measurement is useful in screening for early hip osteoarthritis with acetabular dysplasia (AD). Subjects were 58 healthy Japanese women volunteers (21.1 ± 0.

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Transient abnormal myelopoiesis (TAM) occurs in 10% of neonates with Down syndrome (DS). Although most patients show spontaneous resolution of TAM, early death occurs in ∼20% of cases. Therefore, new biomarkers are needed to predict early death and determine therapeutic interventions.

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Background: The clinical application of human induced pluripotent stem cell-derived cardiomyocytes (CMs) for cardiac repair commenced with the epicardial delivery of engineered cardiac tissue; however, the feasibility of the direct delivery of human induced pluripotent stem cell-derived CMs into the cardiac muscle layer, which has reportedly induced electrical integration, is unclear because of concerns about poor engraftment of CMs and posttransplant arrhythmias. Thus, in this study, we prepared purified human induced pluripotent stem cell-derived cardiac spheroids (hiPSC-CSs) and investigated whether their direct injection could regenerate infarcted nonhuman primate hearts.

Methods: We performed 2 separate experiments to explore the appropriate number of human induced pluripotent stem cell-derived CMs.

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Objective: Oncostatin M (OSM) is an inflammatory cytokine belonging to the interleukin-6 family member, which plays an important role in various cardiovascular diseases. We recently reported increased serum OSM levels in patients with coronary artery disease. However, the specific role in HF with ischemic heart disease (IHD) remains unclear.

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Unlabelled: The patient, a 68-year-old man, presented to our emergency room with chest pain, prompting an emergency cardiac catheterization due to elevated cardiac troponin-I levels. While no obvious coronary artery stenosis was found, there was evidence of apical ballooning wall motion in the left ventricle, leading to a diagnosis of takotsubo syndrome. Three months later, he occasionally experienced chest pain at rest, prompting us to conduct another cardiac catheterization.

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Background: Despite increasing availability of rapid molecular tests for the diagnosis of tuberculosis in high-burden settings, many people with tuberculosis are undiagnosed. Reliance on sputum as the primary specimen for tuberculosis diagnostics contributes to this diagnostic gap. We evaluated the diagnostic accuracy and additive yield of a novel stool quantitative PCR (qPCR) assay for the diagnosis of tuberculosis in three countries in Africa with high tuberculosis burdens.

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Background: Tuberculosis (TB) is a major cause of mortality worldwide. Children and people living with HIV (PLHIV) have an increased risk of mortality, particularly in the absence of rapid diagnosis. The main challenges of diagnosing TB in these populations are due to the unspecific and paucibacillary disease presentation and the difficulty of obtaining respiratory samples.

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Article Synopsis
  • Innovations in sequencing technology have improved the detection of genetic mutations related to inherited diseases, yet many patients remain undiagnosed due to limitations in current methods.
  • The study introduces a new computational workflow for target adaptive sampling long-read sequencing (TAS-LRS) that enhances diagnostic accuracy by effectively identifying both single nucleotide variants and complex structural variations.
  • The TAS-LRS method not only discovered new mutations related to familial adenomatous polyposis and Lynch syndrome but also demonstrated the potential to analyze off-target reads for comprehensive genetic risk assessments.
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Risk classification in pediatric acute myeloid leukemia (P-AML) is crucial for personalizing treatments. Thus, we aimed to establish a risk-stratification tool for P-AML patients and eventually guide individual treatment. A total of 256 P-AML patients with accredited mRNA-seq data from the TARGET database were divided into training and internal validation datasets.

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Article Synopsis
  • * Multiomics analysis showed MNKPL is distinct from other leukemia types and suggested that both NK and myeloid cells may originate from shared progenitor cells.
  • * Current treatments for MNKPL are not very effective, but the study found that MNKPL is especially sensitive to the drug l-asparaginase, which aligns with clinical observations of its effectiveness in patients.
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CD25 is an aberrant marker expressed on the leukemic stem cell (LSC) surface and an immunotherapy target in acute myeloid leukemia (AML). However, the clinical prevalence and significance of CD25 expression in pediatric AML are unknown. High IL2RA/CD25 expression in pediatric AML showed a stem cell-like phenotype, and elevated CD25 expression was associated with lower overall survival (p < .

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Article Synopsis
  • Exon-skipping therapy is a potential treatment for Duchenne muscular dystrophy (DMD) by targeting specific exons in the dystrophin gene, particularly focusing on a mild variant known as Δ3-9.
  • A study compared human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) with either the Δ3-9 deletion, a frameshifting deletion (Δ3-7), or intact dystrophin, revealing that the Δ3-9 variant mimicked the expression patterns and electrical properties of healthy heart cells.
  • Antisense oligonucleotides targeting exon 8 successfully restored functional dystrophin and improved cell characteristics in the Δ3-7 cells, suggesting that modifying
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Background/aim: The COVID-19 pandemic led to the rapid spread of the use of ultraviolet C (UVC) sterilizers in many public facilities. Considering the harmful effects of prolonged exposure to UVC, manufacturing of safe skin care products is an important countermeasure. In continuation of our recent study of water-soluble herbal extracts, the present study aimed at searching for anti-UVC components from fat-soluble herbal extracts.

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Background: Locomotive syndrome (LS) is characterized by reduced mobility. Clinical decision limit (CDL) stage 3 in LS indicates physical frailty. Lumbar spinal canal stenosis (LSS) is one of the causes of LS, for which lumbar surgery is considered to improve the CDL stage.

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Background: There is limited data on the impact of COVID-19 epidemic on the number of orthopaedic surgeries in Japan.

Methods: We conducted a nationwide hospital survey asking for the monthly number of orthopaedic surgeries performed at each facility from January 2019 to June 2021. Those facilities that had performed at least 100 surgeries in 2019 were included for analyses.

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Background: Our purpose was to quantify the postoperative rotation deformity (RD) after osteosynthesis of unstable intertrochanteric fractures (ITFx) using 3D-CT / image processing software, and to clarify the clinical meaning of RD.

Methods: Forty-six consecutive patients with unstable intertrochanteric fractures were enrolled in this study. All were fixed with Gamma 3 Trochanteric nail and RC Lag Screw (Stryker).

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We retrospectively evaluated spinal surgeries performed using the high-definition three-dimensional exoscopic system, which became available at our institution in August 2020. Eleven patients (4 with cervical disease and 7 with lumbar disease) underwent surgery with the system. There were no surgical complications related to the system, and the results were satisfactory.

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