Publications by authors named "Ikeda C"

Natural stilbene compounds, such as resveratrol and pterostilbene, have been focused on owing to their diverse biological activities associated with antioxidant, anti-inflammatory, and anti-aging properties. However, their low water solubility limits their advanced applications. In this study, we investigated the protective effects of selected stilbene compounds (resveratrol, oxyresveratrol, gnetol, piceatannol, and pterostilbene) and their water-soluble derivatives (piceid, resveratrol polysaccharide, pterostilbene trisaccharide, and pterostilbene polysaccharide) against UVA-, UVB irradiation, tertiary-butyl hydroperoxide (t-BuOOH)- and hydrogen peroxide (HO)-induced injury in human epidermal cells.

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Oral squamous cell carcinoma (OSCC) is a common malignancy in the oral cavity. Photodynamic therapy (PDT) is a new alternative for the treatment of diseases using photosensitizers (PS) and light. In this study, we used a photosensitizer complex (Ce6-MnNPs-Chlorin e6 combined with up-conversion nanoparticles NaYF:Yb/Er/Mn) to investigate the therapeutic effectiveness of this treatment against oral cancer cells.

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Article Synopsis
  • Agyrophilic grains (AGs) are brain lesions that accumulate four-repeat tau and are linked to age-related cognitive decline, but their role in dementia remains uncertain due to conflicting research.
  • A study analyzed 30 cases of pure argyrophilic grain disease (pAGD) and 34 control cases to assess the quantity and distribution of Gallyas-positive AGs and associated neuronal loss in various brain regions.
  • Results indicated that higher concentrations of AGs in the amygdala and hippocampus significantly correlated with neuronal loss and affected dementia independently of other factors like age and other neurodegenerative stages.
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In recent years, the significance of detecting minimal/measurable residual disease (MRD) in chronic lymphocytic leukemia (CLL) has increased due to the availability of highly effective therapeutic agents. Flow cytometry provides notable cost-effectiveness and immediacy, with an expected sensitivity level of approximately 10. The critical aspect of MRD detection via flow cytometry lies in accurately defining the region containing tumor cells.

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  • - The study evaluated the effectiveness of a person-centered care program for nurses in acute-care hospitals, comparing it to a dementia-type-specific program over a period from July 2021 to January 2022 across seven hospitals.
  • - Out of 158 participants, those in the intervention group showed significant gains in dementia nursing expertise, medical knowledge, and confidence, along with improvements in ethical sensitivity regarding patient dignity.
  • - The control group also had positive outcomes, particularly in providing care tailored to cognitive function, indicating that both programs have valuable impacts on nursing care in dementia patients.
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The pericarp extract of (TBPE), which is rich in hydrolyzable tannins, has been reported to inhibit α-glucosidase and glycation reactions. We investigated the behavior of hydrolyzable tannins and related metabolites after administration of TBPE to rats. Using high pressure liquid chromatography-electrospray ionization-tandem mass spectroscopy (HPLC-ESI-MS/MS), 12 ellagitannin metabolites, such as urolithins and 6 gallotannin metabolites, produced in the collected plasma and urine were quantified.

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Abstract Background/purpose: Coronavirus disease 2019 (COVID-19) has influenced the dental education in Osaka Dental University. The purpose of this study was to summarize the impact of COVID-19 on student performance and the current more appropriate teaching methods by comparing the changes in various oral pathology exam results before and after COVID-19.

Materials And Methods: The experimental and control groups consisted of second year students in the department of dentistry at our university for the years 2019 (136 people) and 2020 (125 people).

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Although liver regeneration has been extensively studied, the effects of bile-derived extracellular vesicles (bile EVs) on hepatocytes has not been elucidated. We examined the influence of bile EVs, collected from a rat model of 70% partial hepatectomy (PH), on hepatocytes. We produced bile-duct-cannulated rats.

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This study investigated teachers' occupational stress using a comprehensive job stress questionnaire, or the New Brief Job Stress Questionnaire, while considering gender differences. A total of 1,825 elementary and junior high school teachers participated in the study. The results revealed that female teachers significantly exhibited more psychological and physical stress reactions and perceived less job resource availability than did male teachers.

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Since Cambodia has been recognized as one of the low- and middle-income countries with a successful COVID-19 vaccine program, its program approaches were reviewed based mainly on press articles and announcements from the Ministry of Health. From the beginning, the government's proactive approach to securing vaccines and its flexibility prior to WHO Emergency Use Listing (EUL) contributed greatly to the success of the program. Vaccines were provided by COVAX and other countries, but more than half of the vaccines secured were Chinese vaccines purchased with government funds.

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We herein report a case of peripheral blood stem cell transplantation (PBSCT) involving a donor with EDTA-induced pseudothrombocytopenia (PTCP). The apheresis product was inspected for 24 h and there was no platelet clumping or thrombocytopenia. In the first 14 months after PBSCT, there has been no transfer of PTCP symptoms.

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Perampanel is a noncompetitive, -amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid glutamate receptor antagonist. Herein, we report a case of increased perampanel plasma concentration and impaired consciousness triggered by an infection. The patient had refractory epilepsy associated with hemimegalencephaly.

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Near infrared spectroscopy (NIRS) was utilized to determine the endpoint of secondary drying process (post primary spray drying) of Spray-Dried Intermediates (SDI). In addition, NIR methods have been developed to quantify residual solvents (acetone and water), which are in-process controls (IPCs), and assay on the spray dried intermediate, thereby minimizing the need for off-line sample testing. NIRS calibration models were built with Partial Least Squares (PLS) regression for samples from several statistically designed experiments.

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Aim: Previous studies have reported high prevalence of depression and anxiety symptoms among frontline nurses caring for COVID-19 patients. Yet, only a limited number of prospective studies examining nurses' mental health problems have been performed. The present study aimed to examine depressive symptoms and COVID-19-related stresses among nurses working specifically in a hospital COVID unit over a 7-month period.

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Objective: Among standard treatments for infantile spasms, adrenocorticotropic hormone (ACTH) is reported as the best treatment, but ACTH is ineffective in one-half of the patients. To establish precision medicine, we examined pharmacoresistance of focal epileptic spasms (ES), generalized ES, and generalized ES combined with focal seizures, diagnosed based on the revised seizure classification of ILAE in 2017.

Methods: We conducted a retrospective nationwide study in Japan on the long-term seizure outcome of ES.

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Article Synopsis
  • * It included 6,135 teachers and utilized the Brief Job Stress Questionnaire to measure stress, revealing that all forms of overtime were linked to higher stress levels.
  • * The findings suggest that reducing overall overtime is essential for lowering stress, and that differentiating between educational and peripheral tasks during overtime may help manage stress better.
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The tobacco virus resistance gene N contains four introns. Transient expression of transcripts from an N transgene containing these introns and driven by the native promoter in the presence of the elicitor of tobacco mosaic virus resulted in its increased expression. The requirement of the native promoter, the elicitor, or the individual introns for enhanced expression of N has not been fully studied.

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Background: Chemotherapy in childhood leukemia potentially induces brain lesions and neurological sequelae. Paroxysmal sympathetic hyperactivity (PSH) is known as a treatment-associated complication; however, the full clinical spectra of PSH remain to be elusive.

Case Report: A 5-year-old girl was diagnosed of acute myeloid leukemia (AML) M5.

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The chylous turbidity of blood samples is one of the causes of false-high hemoglobin (Hgb) concentration measurements by the colorimetric method, which has been widely applied in hematology analyzers. In such cases, additional manual procedures are required to correct Hgb concentrations. We therefore examined the effectiveness of an optical method for measuring Hgb concentrations in samples with chylous turbidity using Hgb-O in the reticulocyte channel equipped in XN-series analyzers (Sysmex, Kobe, Japan).

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The purpose of this study was to evaluate the usefulness of adding Waters' projection to panoramic imaging compared with panoramic imaging or Waters' projection alone. Maxillary sinusitis in 106 patients (206 sinuses) was retrospectively assessed with panoramic imaging, Waters' projection, and computed tomography imaging by two oral radiologists. The diagnostic performance was assessed with computed tomography imaging as the gold standard.

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Article Synopsis
  • - The study investigates how monitoring peripheral blood hematopoietic progenitor cells (HPCs) can predict the timing for autologous peripheral blood stem cell harvest (APBSCH) by analyzing data from 84 patients.
  • - It was found that specific HPC count thresholds (21/μL the day before collection and 41/μL the day of collection) are strong indicators of collecting sufficient CD34-positive cells, which are crucial for the procedure.
  • - The research concludes that HPC counts from both the day before and the day of the collection provide valuable guidance for successfully timing APBSCH.
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Microalgal communities that colonize the hulls of at-risk vessels - those which have the highest port residency times, lowest speeds, and most stationary time in water - are expected to change as a function of environmental factors during ocean voyages, but are rarely studied. The microalgal communities on the hull of an atypically operated ship, the T.S.

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