43 results match your criteria: "Tokai University Graduate School of Medicine[Affiliation]"

Aim: This study aimed to comprehensively assess the incidence of immune-related adverse events (irAEs) and the detection systems in place for patients with liver cancer undergoing treatment with immune checkpoint inhibitors (ICIs), using a self-administered anonymous questionnaire. The questionnaire was designed to gather crucial insights into the management of irAEs in these patients.

Methods: A self-administered anonymous questionnaire was sent to 456 liver disease collaborative base hospitals and cancer care coordination base hospitals in Japan.

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Impact of Atezolizumab + Bevacizumab Therapy on Health-Related Quality of Life in Patients with Advanced Hepatocellular Carcinoma.

Cancers (Basel)

October 2024

Division of Gastroenterology, Department of Internal Medicine, Tokai University School of Medicine, 143 Shimokasuya, Isehara-city 259-1193, Kanagawa, Japan.

Background/objectives: Health-related quality of life (HRQoL) is critical in patients with hepatocellular carcinoma (HCC). It has become a key endpoint in the evaluation of new therapies, including atezolizumab + bevacizumab (Atezo + Bev) therapy.

Methods: This study explored the factors associated with treatment efficacy, treatment duration, and overall survival (OS) in patients with advanced HCC undergoing Atezo + Bev therapy.

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Article Synopsis
  • There is a significant challenge in diagnosing ovarian high-grade endometrioid carcinoma (HGEC) and high-grade serous carcinoma (HGSC) due to their similar histopathological features, leading to variability among observers.
  • A study analyzed a variety of ovarian cancer samples using advanced sequencing and clustering techniques, identifying four distinct tumor groups with different characteristics and survival outcomes.
  • The findings suggest that a specific subset of tumors, termed "HGEC-type," shows favorable prognosis and endometrial differentiation, which may often be misclassified as HGSCs, indicating a need for improved diagnostic strategies.
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Exploration of the Factors Impacting Sustained Clinical Care by Multidisciplinary Professionals for Amyotrophic Lateral Sclerosis.

Tokai J Exp Clin Med

September 2024

Department of Advanced Medical Sciences, Tokai University Graduate School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.

Objective: This study examined the experiences of multidisciplinary medical professionals in providing daily clinical care for patients with amyotrophic lateral sclerosis (ALS), with a focus placed on their persistence in sustaining clinical care for this patient group.

Methods: A questionnaire survey was administered to multidisciplinary medical professionals involved in ALS care at three hospitals in western Kanagawa Prefecture, Japan. The questionnaire results were used to examine the relationships between years of medical experience, years of ALS care experience, self-evaluation, and motivation to continue providing clinical care to patients with ALS.

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High N6-methyladenosine-activated TCEAL8 mRNA is a novel pancreatic cancer marker.

Cancer Sci

July 2024

Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan.

N6-methyladenosine (m6A) is an RNA modification involved in RNA processing and widely found in transcripts. In cancer cells, m6A is upregulated, contributing to their malignant transformation. In this study, we analyzed gene expression and m6A modification in cancer tissues, ducts, and acinar cells derived from pancreatic cancer patients using MeRIP-seq.

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In-hospital mortality following percutaneous coronary intervention (PCI) varies across institutions with different annual PCI volumes. The failure to rescue (FTR) rate, defined as the mortality rate following PCI-related complications, may account for the volume-outcome relationship. The Japanese Nationwide PCI Registry, a consecutive, nationally mandated registry between 2019 and 2020, was queried.

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Article Synopsis
  • * Researchers identified a set of differentially expressed genes, termed the "HRDness signature," and analyzed their relationship with genomic features, clinical outcomes, and response to treatment using data from ovarian cancer patients.
  • * Findings indicate that a strong HRDness signature correlates with better survival rates, while BRCA1 gene methylation suggests poorer outcomes; the newly created JGOG3025-TR2 dataset is expected to enhance future research in this area.
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Establishment of a reference single-cell RNA sequencing dataset for human pancreatic adenocarcinoma.

iScience

August 2022

Department of Medical Data Science, Center of Medical Innovation and Translational Research, Osaka University Graduate School of Medicine, Yamadaoka 2-2, Suita, Osaka 565-0871, Japan.

Article Synopsis
  • Researchers created a comprehensive single-cell atlas of pancreatic ductal adenocarcinoma (PDAC) by analyzing data from over 70 samples and more than 130,000 cells, enhancing understanding of the tumor's complexity and environment.
  • The application of this atlas helped reanalyze existing bulk transcriptomic studies and revealed key relationships between different cell types, indicating that high levels of tumor cells and fibroblasts are linked to worse patient outcomes.
  • The study identified distinct tumor clusters and their interactions with various fibroblast subtypes, providing insights into the signaling pathways that contribute to the heterogeneity within PDAC and offering a valuable reference for future research.
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SQSTM1, a protective factor of SOD1-linked motor neuron disease, regulates the accumulation and distribution of ubiquitinated protein aggregates in neuron.

Neurochem Int

September 2022

Molecular Neuropathobiology Laboratory, Department of Molecular Life Sciences, Tokai University School of Medicine, Isehara, Kanagawa, 259-1193, Japan; The Institute of Medical Sciences, Tokai University, Isehara, Kanagawa, 259-1193, Japan; Micro/Nano Technology Center, Tokai University, Hiratsuka, Kanagawa, 259-1292, Japan; Research Center for Brain and Nervous Diseases, Tokai University Graduate School of Medicine, Isehara, Kanagawa, 259-1193, Japan. Electronic address:

Amyotrophic lateral sclerosis (ALS) is a progressive neurodegenerative disease characterized by selective loss of motor neurons in the brain and spinal cord. Recent studies have shown that mutations in SQSTM1 are linked to ALS. It has also been demonstrated that a systemic loss of SQSTM1 exacerbates disease phenotypes in an ALS mouse model.

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The role of erythrocytes in platelet adhesion to von Willebrand factor (VWF) on the vessel wall through their membrane glycoprotein (GP)Ibα under blood flow conditions has not yet been elucidated. Blood specimens containing fluorescent-labeled platelets and native, biochemically fixed, or artificial erythrocytes at various hematocrits were perfused on the surface of VWF immobilized on the wall at a shear rate of 1,500 s. The rates of platelet adhesion were measured under each condition.

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High-throughput quantitative analysis of axonal transport in cultured neurons from SOD1 ALS mice by using a microfluidic device.

Neurosci Res

January 2022

Molecular Neuropathobiology Laboratory, Department of Molecular Life Sciences, Tokai University School of Medicine, Isehara, Kanagawa, 259-1193, Japan; Micro/Nano Technology Center, Tokai University, Hiratsuka, Kanagawa, 259-1292, Japan; The Institute of Medical Sciences, Tokai University, Isehara, Kanagawa, 259-1193, Japan; Research Center for Brain and Nervous Diseases, Tokai University Graduate School of Medicine, Isehara, Kanagawa, 259-1193, Japan. Electronic address:

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease characterized by selective loss of motor neurons. We have previously shown that autophagosome-like vesicular structures are progressively accumulated in the spinal axons of an ALS mouse model, overexpressing human Cu/Zn superoxide dismutase (SOD1) mutant, prior to the onset of motor symptoms. This suggests that axonal transport perturbation can be an early sign of neuronal dysfunction.

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The N-terminal intrinsically disordered region mediates intracellular localization and self-oligomerization of ALS2.

Biochem Biophys Res Commun

September 2021

Molecular Neuropathobiology Laboratory, Department of Molecular Life Sciences, Tokai University School of Medicine, Isehara, Kanagawa, 259-1193, Japan; Micro/Nano Technology Center, Tokai University, Hiratsuka, Kanagawa, 259-1292, Japan; The Institute of Medical Sciences, Tokai University, Isehara, Kanagawa, 259-1193, Japan; Research Center for Brain and Nervous Diseases, Tokai University Graduate School of Medicine, Isehara, Kanagawa, 259-1193, Japan. Electronic address:

ALS2, a product of the causative gene for familial amyotrophic lateral sclerosis (ALS) type 2, plays a pivotal role in the regulation of endosome dynamics by activating small GTPase Rab5 via its intrinsic guanine nucleotide-exchange factor activity. Previously, we have reported that the N-terminal region of ALS2 has crucial roles in its endosomal localization and self-oligomerization, both of which are indispensable for the cellular function of ALS2. The N-terminus of ALS2 contains the regulator of chromosome condensation 1-like domain (RLD), which is predicted to form a seven-bladed β-propeller structure.

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Candidates for Intra-Articular Administration Therapeutics and Therapies of Osteoarthritis.

Int J Mol Sci

March 2021

Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara 259-1193, Japan.

Osteoarthritis (OA) of the knee is a disease that significantly decreases the quality of life due to joint deformation and pain caused by degeneration of articular cartilage. Since the degeneration of cartilage is irreversible, intervention from an early stage and control throughout life is important for OA treatment. For the treatment of early OA, the development of a disease-modifying osteoarthritis drug (DMOAD) for intra-articular (IA) injection, which is attracting attention as a point-of-care therapy, is desired.

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In the knee joint, articular cartilage injury can often lead to osteoarthritis of the knee (OAK). Currently, no point-of-care treatment can completely address OAK symptoms and regenerate articular cartilage to restore original functions. While various cell-based therapies are being developed to address OAK, exosomes containing various components derived from their cells of origin have attracted attention as a cell-free alternative.

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Effect of Platelet-Rich Plasma on M1/M2 Macrophage Polarization.

Int J Mol Sci

February 2021

Department of Orthopaedic Surgery, Surgical Science, Tokai University School of Medicine, 143 Shimokasuya, Isehara, Kanagawa 259-1193, Japan.

Osteoarthritis of the knee (OAK) is a chronic degenerative disease and progresses with an imbalance of cytokines and macrophages in the joint. Studies regarding the use of platelet-rich plasma (PRP) as a point-of-care treatment for OAK have reported on its effect on tissue repair and suppression of inflammation but few have reported on its effect on macrophages and macrophage polarization. Based on our clinical experience with two types of PRP kits Cellaid Serum Collection Set P type kit (leukocyte-poor-PRP) and an Autologous Protein Solution kit (APS leukocyte-rich-PRP), we investigated the concentrations of humoral factors in PRPs prepared from the two kits and the effect of humoral factors on macrophage phenotypes.

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Elevated low-density lipoprotein cholesterol (LDL-C) is a principally modifiable cause of atherosclerotic cardiovascular disease; accordingly, recent European and US multisociety dyslipidaemia guidelines emphasise the importance of lowering LDL-C to reduce cardiovascular risk. This review provides perspectives on established and emerging agents that reduce LDL-C to help providers synthesize the abundance of new evidence related to prevention of cardiovascular disease. We provide hypothetical cases of patients with different cardiovascular risk factors and medical histories to illustrate application of current lipid-lowering guidelines in various clinical settings.

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SQSTM1 variant that is linked to sporadic ALS exhibits impaired association with MAP1LC3 in cultured cells.

eNeurologicalSci

March 2021

Molecular Neuropathobiology Laboratory, Department of Molecular Life Sciences, Tokai University School of Medicine, Isehara, Kanagawa 259-1193, Japan.

Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) are genetically, pathologically and clinically-related progressive neurodegenerative diseases. Thus far, several variations have been identified in patients with ALS and FTD. However, it remains unclear how variations lead to neurodegeneration.

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Introduction: Renal cell carcinoma has been considered radioresistant. Recently, several studies have reported the efficacy of combination therapy using radiotherapy and immune checkpoint inhibitors.

Case Presentation: In 1999, a 56-year-old woman underwent left nephrectomy (clear cell carcinoma, pT1bN0M0).

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Synthesis of Thermoplastic Poly(2-methoxyethyl acrylate)-Based Polyurethane by RAFT and Condensation Polymerization.

Macromol Rapid Commun

October 2020

Department of Mechanical Engineering, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.

Thermoplastic solid poly(2-methoxyethyl acrylate) (PMEA)-based polyurethane (PU) is synthesized through the reversible addition-fragmentation chain transfer (RAFT) polymerization and the condensation polymerization, using hydroxyl-terminated RAFT reagents and diisocyanate, respectively. Neat PMEA is a promising antithrombogenic liquid used in the medical fields. The thermoplastic property of the solid PMEA-based PU due to hydrogen bonding is confirmed by the dynamic mechanical analysis (DMA) at temperature below 72 °C.

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Monitoring the autophagy-endolysosomal system using monomeric Keima-fused MAP1LC3B.

PLoS One

August 2020

Molecular Neuropathobiology Laboratory, Department of Molecular Life Sciences, Tokai University School of Medicine, Isehara, Kanagawa, Japan.

The autophagy-endolysosomal pathway is an evolutionally conserved degradation system that is tightly linked to a wide variety of physiological processes. Dysfunction of this system is associated with many pathological conditions such as cancer, inflammation and neurodegenerative diseases. Therefore, monitoring the cellular autophagy-endolysosomal activity is crucial for studies on the pathogenesis as well as therapeutics of such disorders.

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Anatomy of the coronary arteries in fetal pigs: comparison with human anatomy.

Anat Sci Int

March 2020

Department of Frontier Health Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, 7-2-10, Higashioku, Arakawa-ku, Tokyo, 116-8551, Japan.

In this study, 94 fetal pigs were used to comprehensively investigate the origins, number, location, and distribution of the coronary arteries to enrich knowledge on the coronary circulation in fetal pigs, and allow comparison with adult pigs and humans. In fetal pigs, the posterior interventricular sulcus branch always arose from the right coronary artery and the circumflex artery was rarely extended to the posterior interventricular sulcus, while it is variable in humans. In fetal pigs, there was sometimes anastomosis (8.

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Prediction of binding characteristics between von Willebrand factor and platelet glycoprotein Ibα with various mutations by molecular dynamic simulation.

Thromb Res

December 2019

Department of Medicine (Cardiology), Tokai University School of Medicine, Metabolic Disease Research Center, Tokai University Graduate School of Medicine, Isehara, Japan. Electronic address:

Introduction: Binding of platelet glycoprotein (GP)Ibα with von-Willebrand factor (VWF) exclusively mediates the initial platelet adhesion to injured vessel wall. To understand the mechanism of biomedical functions, we calculated the dynamic fluctuating three-dimensional (3D) structures and dissociation energy for GPIbα with various single amino-acid substitution at G233, which location is known to cause significant changes in platelet adhesive characteristics.

Material And Methods: Molecular dynamics (MD) simulation was utilized to calculate 3D structures and Potential of Mean Force (PMF) for wild-type VWF bound with wild-type, G233A (equal function), G233V (gain of function), and G233D (loss of function) GPIbα.

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Human short tandem repeat identification using a nanopore-based DNA sequencer: a pilot study.

J Hum Genet

January 2020

Biomedical Informatics Laboratory, Department of Molecular Life Science, Tokai University School of Medicine, Shimokasuya 143, Isehara, Kanagawa, 259-1193, Japan.

Short tandem repeats (STRs) are repetitive DNA sequences that are highly polymorphic and widely used for personal identification in the field of forensic medicine. The standard method for determining the repeat number of STRs is capillary electrophoresis of PCR products; however, the use of DNA sequencing has increased because it can identify same-sized alleles with nucleotide substitutions (iso-alleles). In this study, we performed human STR genotyping using a portable nanopore-based DNA sequencer, the MinION, and evaluated its performance.

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Introduction: Thrombin inhibitor and anti-Xa are now widely used in clinical practice. However, the difference between thrombin inhibitor and anti-Xa in prevention of thrombosis is still to be elucidated.

Materials And Methods: Computer simulator implementing the function of platelet, coagulation, fibrinolysis and blood flow was developed.

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Familial amyotrophic lateral sclerosis type 2 (ALS2) is a juvenile autosomal recessive motor neuron disease caused by the mutations in the gene. The gene product, ALS2/alsin, forms a homophilic oligomer and acts as a guanine nucleotide-exchange factor (GEF) for the small GTPase Rab5. This oligomerization is crucial for both Rab5 activation and ALS2-mediated endosome fusion and maturation in cells.

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