Publications by authors named "Matsuura Y"

Objectives: In the ninth edition of the TNM classification of lung cancer, N2 is subdivided into single-station (N2a) and multiple-station involvement (N2b), and some stage changes are made to stage II-III. This study aimed to validate the new classification and determine the effect of stage migration and vice versa on the prognosis of each pathological stage due to these changes.

Materials And Methods: A total of 1,754 patients with surgically resected lung cancer were included.

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Objectives: Virtual reality (VR) and three-dimensional (3D) images have become increasingly popular. It has been reported that visually induced motion sickness (VIMS) is more frequently caused by viewing these images. We propose a method to control VIMS by controlling visually evoked postural responses (VEPRs) using galvanic vestibular stimulation (GVS).

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Purpose: Despite a global decrease in the number of COVID-19 patients, early prediction of the clinical course for optimal patient care remains challenging. Recently, the usefulness of image generation for medical images has been investigated. This study aimed to generate short-term follow-up chest CT images using a latent diffusion model in patients with COVID-19.

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Background: The Kerlan-Jobe Orthopaedic Clinic shoulder and elbow score (KJOC) is sensitive enough to detect subtle changes in the functional level of the shoulder or elbow in overhead athletes. However, a Japanese version of the KJOC is not yet available. Moreover, the original KJOC uses a visual analog scale (VAS) assessment format that requires a print version so that users can add a check mark along a horizontal line.

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Objectives: Being a school teacher is highly stressful. This study aimed to clarify the prevalence of menopausal symptoms and explore the association between these symptoms and job-related stress among Japanese school teachers.

Study Design: A cross-sectional study was conducted among randomly selected elementary and junior high school teachers in Japan.

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Purpose: In a cadaveric model, a comparison was made of the strength of a suture method for collateral ligaments (the N method) with that of simple sutures using suture anchors for the repair of collateral ligaments in the proximal interphalangeal joint.

Methods: We obtained 72 fingers from 18 upper limbs of fresh-frozen cadavers and compared the left and right sides of the same specimens. In experiment 1, we examined the rupture strength and rupture sites of intact collateral ligaments in 24 fingers.

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Introduction: The SARS-CoV-2 pandemic has had a widespread and severe impact on society, yet there have also been instances of remarkable recovery, even in critically ill patients.

Materials And Methods: In this study, we used single-cell RNA sequencing to analyze the immune responses in recovered and deceased COVID-19 patients during moderate and critical stages.

Results: Expanded T cell receptor (TCR) clones were predominantly SARS-CoV-2-specific, but represented only a small fraction of the total repertoire in all patients.

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Objective: To develop a training program for bronchial sleeve reconstruction using our previously developed 3-dimensional (3D) operable airway model and evaluate its effectiveness in surgical trainees.

Methods: Eight trainees and 4 faculty surgeons were enrolled. Their right upper lobe sleeve reconstruction procedures were scored by 2 senior surgeons in a blinded fashion on a 5-point Likert scale on the following: airway wall tear, reapplied ligatures, reapplied needles, needle entry and exit, anastomotic bite, and caliber adjustment (full score: 30).

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Background: The appropriate extent of hilar lymph node (LN) dissection in segmentectomy for lung cancer has not yet been fully investigated. Herein, we assessed the patterns of LN metastasis using network analyses.

Methods: Patients with nodal metastases of non-small-cell lung cancer measuring ≤30 mm in diameter who underwent anatomical resection were included.

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Importance: This report details a case of effectively managing severe panic attacks in a panic disorder (PD) patient with agoraphobia by acupuncture treatment.

Case Presentation: A 38-year-old Japanese woman suffering from PD with agoraphobia presented at our acupuncture clinic with complaints of repeated panic attacks and anxiety. Initially starting to experience symptoms in her late teens, she avoided psychiatric consultation due to reluctance toward psychotropic medications.

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KEGG (https://www.kegg.jp/) is a database resource for representation and analysis of biological systems.

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Oncogenic transformation of normal cells is caused by mutations and chromosomal abnormalities in cancer-related genes. Enzootic bovine leukosis (EBL) is a malignant B-cell lymphoma caused by bovine leukemia virus (BLV) infection in cattle. Although a small fraction of BLV-infected cattle develops EBL after a long latent period, the mechanisms for oncogenesis in EBL cattle remain largely unknown.

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Article Synopsis
  • * A 68-year-old man experienced numbness and pain in his right hand, which was found to be caused by compression of the median nerve during surgery.
  • * The surgery involved removing the compressing muscle, resulting in the resolution of the patient's symptoms, highlighting the need for preoperative imaging to detect such anatomical variations in CTS cases.
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Secondary spontaneous pneumothorax (SSP) due to bevacizumab has been reported in other malignancies but not in cervical cancer. We present the case of a 57-year-old woman with stage IIIB cervical cancer who developed SSP during bevacizumab chemotherapy. Despite complete remission with cisplatin-based chemoradiotherapy, she experienced a recurrence 9 months later.

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Background And Objectives: A recent Japanese phase three clinical trial for lung cancer suggested a possible advantage of segmentectomy over lobectomy in terms of death from other diseases. This study aimed to compare the risk of death from other diseases based on surgical procedures in lung cancer patients without recurrence.

Methods: We retrospectively reviewed 2121 patients without disease recurrence after curative resection for lung cancer at our institution.

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We previously reported that hepatitis C virus (HCV) infection or HCV core protein expression induces HOX gene expression by impairing histone H2A monoubiquitination via a proteasome-dependent reduction in the level of RNF2, a key catalytic component of polycomb repressive complex 1 (H. Kasai, K. Mochizuki, T.

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Whereas severe COVID-19 is often associated with elevated autoantibody titers, the underlying mechanism behind their generation has remained unclear. Here we report clonal composition and diversity of autoantibodies in humoral response to SARS-CoV-2. Immunoglobulin repertoire analysis and characterization of plasmablast-derived monoclonal antibodies uncovered clonal expansion of plasmablasts producing cardiolipin (CL)-reactive autoantibodies.

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Aims: While the prevalence of transthyretin-derived amyloid cardiomyopathy (ATTR-CM) is on the rise, detailed understanding of its morphological and functional characteristics within the left ventricle (LV) across heart failure (HF) remains limited.

Methods And Results: Utilizing two-dimensional (2D) speckle-tracking echocardiography, we assessed longitudinal strain (LS) in 63 histology-confirmed ATTR-CM patients. Additionally, cardiac magnetic resonance (CMR) images measured native T1 and extracellular volume (ECV), compared with LS across 18 LV segments.

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Bovine viral diarrhea (BVD) is a serious disease in cattle and causes economic losses in the livestock industry. Bovine viral diarrhea virus (BVDV) is the causative agent of BVD and spreads among herds via persistently infected (PI) animals that shed large amounts of the virus throughout their lives. Hence, identifying, and culling PI animals and assessing the immune status against BVDV on farms are important strategies for controlling BVD.

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Coronavirus (CoV) possesses numerous functional cis-acting elements in its positive-strand genomic RNA. Although most of these RNA structures participate in viral replication, the functions of RNA structures in the genomic RNA of CoV in viral replication remain unclear. In this study, we investigated the functions of the higher-order RNA stem-loop (SL) structures SL5B, SL5C, and SL5D in the ORF1a coding region of Middle East respiratory syndrome coronavirus (MERS-CoV) in viral replication.

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Flaviviridae is a family of positive-stranded RNA viruses, including human pathogens, such as Japanese encephalitis virus (JEV), dengue virus (DENV), Zika virus (ZIKV), and West Nile virus (WNV). Nuclear localization of the viral core protein is conserved among Flaviviridae, and this feature may be targeted for developing broad-ranging anti-flavivirus drugs. However, the mechanism of core protein translocation to the nucleus and the importance of nuclear translocation in the viral life cycle remain unknown.

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Article Synopsis
  • SARS-CoV-2 causes a range of respiratory symptoms, and although research has made strides in understanding the virus, many aspects of its infection process are still not fully understood.
  • The study focuses on the interferon-inducible protein ISG15, which is involved in suppressing viral functions through a process called ISGylation, and how SARS-CoV-2's protease, PLpro, interferes with this process.
  • Results show that ISGylation of the SARS-CoV-2 nucleocapsid protein disrupts viral replication, indicating that the virus has evolved mechanisms to evade ISGylation to enhance its own replication efficiency.
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