Publications by authors named "Murakami Y"

Background: Healthy life expectancy (HLE) is a population health indicator that is widely used in developed countries, but little is known about its relationships with combinations of non-communicable disease risk factors. This study was conducted to examine HLE at age 65 according to combinations of blood pressure levels, body mass index, smoking status, and diabetes mellitus (DM) in a Japanese population.

Methods: In a nationwide cohort study (NIPPON DATA90), data on these risk factors were obtained from participants in 1990 through physical examinations, blood tests, interviews, and questionnaires.

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Japan's National Epidemiological Surveillance of Infectious Diseases (NESID) has implemented a warning system for detecting epidemics in smaller districts, such as public health center (PHC) areas. This system is applied to influenza and pediatric infectious diseases but not to respiratory syncytial virus (RSV) infection, whose incorporation is essential for early epidemic detection. We aimed to propose criterion values for the epidemic warning system of RSV infection within PHC areas.

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Objectives: To evaluate the effects of postoperative pancreatic enzyme replacement therapy on fat digestion and absorption in patients following initial total pancreatectomy.

Methods: Data were retrospectively collected from patients who underwent initial total pancreatectomy at our department between 2012 and 2020. Fat digestion, absorption functions, serum nutritional markers, HbA1c levels, and hepatic steatosis before and after the initial total pancreatectomy were evaluated.

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Covalently bonded crystalline substances with micropores have broad applications. Covalent organic frameworks (COFs) are representative of such substances. They have so far been classified into two-dimensional (2D) and three-dimensional (3D) COFs.

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In this study, we examined the effect of a bundled approach to blood collection for blood culture on decreasing contamination. Commensal organisms were considered contaminants on the basis of the clinical course if they were recovered from only a single blood draw (set) and if a positive result for two sets was not obtained within 72 hours. The main elements of the bundle were blood collection by venipuncture, skin preparation with a chlorhexidine alcohol swab, disinfection of culture bottles, and use of a sterile blood transfer device instead of the two-needle technique for inoculation.

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This report presents a patient with pneumonia (LP), initially presented with fever and mild hypoxemia, with subsequent progression to severe pneumonia during hospitalization. Despite multiple negative urinary antigen tests using Ribotest , the diagnosis was confirmed via the loop-mediated isothermal amplification method of lower respiratory tract secretions. This case highlights the diagnostic limitations of Ribotest and emphasizes the importance of a comprehensive diagnostic strategy, incorporating nucleic acid amplification tests or culture in suspected patients with LP.

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To improve imputation quality for genome-wide association studies (GWAS) conducted on the Japanese population, we developed and evaluated four Japanese population-specific reference panels. These panels were constructed through the augmentation of the 1000 Genomes Project (1KG) panel using Japanese whole genome sequencing (WGS) data, with sample sizes ranging from 1 K to 7 K individuals enrolled through the Biobank Japan (BBJ) project, and sequencing depths ranging from 3× to 30×. Among these panels, an augmented reference panel comprising 7472 WGS samples of mixed depth (1KG+7K) exhibit the greatest improvement in imputation quality relative to the Trans-Omics for Precision Medicine (TOPMed) reference panel.

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Introduction: Acquired haemophilia A (AHA) is characterized by the development of autoantibodies against factor VIII, reducing its activity and potentially resulting in bleeding.

Aim: To assess the characteristics of people with AHA undergoing rehabilitation and/or with low activities of daily living (ADL) scores, thereby characterizing unmet needs in the management of AHA and informing treatment optimization.

Methods: ORIHIME II, the largest epidemiological and treatment survey of AHA in Japan, is a descriptive, retrospective, observational study conducted using health claims data from April 2008 to October 2021.

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A germline alteration in the PTEN gene causes a spectrum of disorders conceptualized as PTEN hamartoma tumor syndrome (PHTS), which show high risk of tumor development and a highly variable and complex phenotype. The diagnosis of PHTS is established in a proband by identification of a heterozygous germline PTEN pathogenic variant on molecular genetic testing. In this study, to understand more PTEN-associated clinical phenotype and PHTS in a Japanese population, we extracted 128 germline PTEN rare variants from 113,535 adult Japanese registered in Biobank Japan (BBJ), and categorized 29 pathogenic/likely pathogenic variants in 30 individuals (0.

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Bilayer materials may support interlayer excitons comprised of electrons in one layer and holes in the other. In experiments, a nonzero exciton density is typically sustained by a bias chemical potential, implemented either by optical pumping or by electrical contacts connected to the two layers. We show that if charge can tunnel between the layers, the chemical potential bias means that an exciton condensate is in the dynamical regime of ac Josephson effect.

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Adult myogenic cell lines are useful to study muscle development, repair and regeneration. In newts, which are known for their high regenerative capacity, myogenic cell lines have not been established in species other than the Eastern newt Notophthalmus viridescens. In this study, we established another myogenic cell line, named CpM01, from the skeletal muscle of the forearm of the adult Japanese fire-bellied newt Cynops pyrrhogaster.

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This case highlights the fact that in Stanford type A aortic dissection, there are cases of re-entry points in the common carotid artery from which thrombus protrudes. If it is a thrombus, there is a possibility of embolization, requiring immediate therapeutic intervention.

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Article Synopsis
  • The study analyzed how specific mutations at Asp187 and Ser188 in the protease cocoonase (CCN) affect its ability to recognize substrates and carry out enzymatic activity.
  • Mutations at Asp187 significantly reduced enzymatic activity, highlighting its key role, while changes at Ser188 had a lesser impact but still contributed to substrate recognition.
  • Substituting Asp187 with other residues resulted in new substrate specificities, suggesting that the structure of the precursors remains stable, which may affect how the enzyme interacts with substrates and its overall catalytic function.
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Numerous vascular anomalies of the hepatic artery have been reported. Protection of the hepatic arterial supply is important during gastrectomy. We herein report a case in which an anatomical variant of the hepatic artery was discovered in a patient undergoing laparoscopic distal gastrectomy with D1+ lymph node dissection for early gastric cancer.

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  • This study investigates whether a 15-second static stretching (SS) exercise performed after a longer 180-second SS can enhance the prolonged effects on flexibility and tissue characteristics.
  • The research involved 15 untrained males, comparing three conditions: just 180 seconds of SS, 180 seconds of SS followed by 15 seconds during rest, and a control group with only 15 seconds of SS.
  • Results showed that adding the short-term SS improved knee flexion range of motion and reduced tissue hardness for longer durations compared to the other conditions, suggesting benefits of this combined approach.
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  • Long-duration spaceflight can stress the skeletal and immune systems, but the specific response mechanisms are still not fully understood.
  • A study with mice on the ISS evaluated how different gravitational conditions (microgravity, lunar gravity, and Earth gravity) affected their bone, thymus, and spleen over 25-35 days.
  • Results showed that while bone density loss in microgravity was mostly restored in Earth gravity, lunar gravity only offered partial recovery; microgravity also caused thymus shrinkage, partially reversible by both lunar and Earth gravity but with ongoing gene expression issues.
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While the biological effective dose (BED) has been used to estimate the damage to tumor cells in radiotherapy, BED does not consider intrafractional interruption (IFI) occurring during irradiation. We aim to develop a framework to evaluate the decrease in BED [ΔBED] and to create a plan compensating for the decrease by IFI.ΔBEDwas calculated using a model based on the microdosimetric kinetic model (MKM) for four brain tumor cases treated using a volumetric-modulated arc therapy.

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Introduction: Vonoprazan has been known to have a high () eradication rate since its launch in 2015. Yet, the risk factors for eradication failure and development of post-eradication gastric cancer (GC) using VPZ regimen remain unclear.

Methods: This single-center cohort study included 934 consecutive patients who underwent eradication using VPZ between February 2015 and June 2017 and were followed up for five years by the end of 2022.

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RNA-dependent protein kinase (PKR) may have a positive regulatory role in controlling tumor growth and progression in hepatocellular carcinoma (HCC). However, the downstream substrates and the molecular mechanism of PKR in the growth and progression of HCC have not been clarified. In this study, mass spectrometry analysis was performed with immunoprecipitated samples, and 4.

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Purpose It is difficult to measure maximal isokinetic eccentric (ECC) muscle strength in the sports field. This study aimed to investigate whether elbow isometric (ISO) flexion muscle strength or muscle thickness (MT) can be used to estimate elbow ECC flexion muscle strength. Material and methods Maximal muscle strength and muscle thickness (MT) were measured in the elbow flexor muscle group of 147 healthy adults (age: 21.

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The Raman fingerprint spectral region provides abundant structural information on molecules. However, analyzing vibrational images within this region using coherent Raman imaging remains challenging due to the small Raman cross section and congested spectral features. In this study, we combined ultrabroadband coherent anti-Stokes Raman scattering (CARS) microspectroscopy across the spectral range of 500-4000 cm with multivariate curve resolution-alternating least-squares (MCR-ALS) to reveal hidden Raman bands in the fingerprint region.

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Background/aim: Alkaline extracts of several plants which contain lignin degradation products have several unique biological activities. In order to search for new biological activities of alkaline extracts of pine seed shell (APs), their anti-ultraviolet C (UVC) and macrophage stimulation activity were investigated.

Materials And Methods: Anti-UVC activity was determined by the ratio of the 50% cytotoxic concentration against human melanoma cell line COLO679 to the 50% UVC-protective concentration.

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Article Synopsis
  • - Ebstein's anomaly is an uncommon heart condition that rarely occurs with coarctation of the aorta, despite patients often having a small left ventricle.
  • - The case presented involves a unique combination of Ebstein's anomaly, coarctation of the aorta, and a bicuspid aortic valve.
  • - The study compares fetal echocardiographic data from this case to five previous similar cases to investigate the relationship between left ventricular volume, severity of Ebstein's anomaly, and the presence of left heart obstruction.
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