Publications by authors named "Yamato K"

Objective: This study aimed to investigate seasonal differences in migraine onset in Japan and associated trends in the prescription of triptan.

Background: The relationship between seasonal changes and the onset of migraine remains largely unknown.

Methods: We combined the large-scale medical claims data in Japan with city-level meteorological data presented by the Japan Weather Association.

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  • - This study focuses on modifying cellulose nanomaterials (CNs) to make them more hydrophobic and thermally stable, which is important for creating strong and transparent epoxy nanocomposites.
  • - Researchers explored amidation, a chemical process that alters carboxy groups on fibrous wood pulp, achieving high amidation rates of 88% and 91% and improving efficiency for industrial use.
  • - After amidation, the thermal degradation point of the wood pulp increased significantly from 224°C to over 250°C, and the modified pulp was processed into transparent dispersions for further applications.
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Background And Objectives: Fremanezumab is an effective treatment for episodic (EM) and chronic migraine (CM) patients in Japan, but its cost effectiveness remains unknown. The objective of this study was to determine the cost effectiveness of fremanezumab compared with standard of care (SOC) in previously treated EM and CM patients from a Japanese healthcare perspective.

Methods: Estimated regression models were implemented in a probabilistic Markov model to inform effectiveness and health-related quality-of-life data for fremanezumab and SOC.

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  • A study aimed to identify what motivates individuals to receive COVID-19 booster vaccines through a paper-based questionnaire at Keio University, involving 1725 participants who had received their initial vaccinations in 2021.
  • The main motivators for getting vaccinated included fear of severe illness from COVID-19 (72.6%), concern about infecting others (68.4%), and fear of infection itself (68.3%).
  • Television was found to be the most influential source of vaccination information, while trust in vaccine efficacy and safety was linked to participants' willingness to get booster shots, regardless of reported adverse events experienced.
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Purpose: The study aimed to validate and compare coding algorithms for identifying people with migraine within the Japanese claims database.

Methods: This study used the administrative claim database provided by DeSC Healthcare, Inc., that was linked to the results of an online survey administered to adult users of the health app "kencom.

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Background And Objectives: As regression approaches have been used more recently to model the effectiveness and health-related quality of life (HRQOL) of novel migraine treatments, an example is provided for fremanezumab. The objective is to estimate the distribution of mean monthly migraine days (MMD) as a continuous variable and corresponding migraine-specific utility values as a function of the MMD, to inform health states in a cost-effectiveness model (CEM).

Methods: Three longitudinal regression models (zero-adjusted gamma [ZAGA], zero-inflated beta-binomial [ZIBB], and zero-inflated negative binomial [ZINBI]) were fitted to Japanese-Korean clinical trial data of episodic (EM) and chronic migraine (CM) patients treated with fremanezumab or placebo, to estimate MMD over a period of 12 months.

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Background: Fluralaner is the first isoxazoline ectoparasiticide developed to protect companion animals from fleas and ticks. Fluralaner primarily inhibits arthropod γ-aminobutyric acid receptors (GABARs), which are ligand-gated ion channels comprising five subunits arranged around the channel pore. We previously reported that the action site of fluralaner resides at the M1-M3 transmembrane interface between adjacent GABAR subunits.

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Objective Although diagnostic criteria of Parkinson's disease (PD) have been established, the details of the process by which patients notice symptoms, visit a physician, and receive a diagnosis of PD is unclear. We therefore explored factors influencing latency in diagnosing PD. Methods We performed an internet-based survey of patients with PD and their families as well as physicians treating patients with PD to identify any diagnostic latency and its determinants.

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  • Transglutaminase (TGM) isoforms are enzymes that help proteins link together, and the study focuses on their role in chronic rhinosinusitis with nasal polyps (CRSwNP), particularly related to tissue eosinophils.* -
  • Researchers analyzed tissue samples from CRSwNP patients and controls to examine the expression of specific TGM isoforms, particularly TGM 1, and its correlation with tissue eosinophil counts and localization in nasal polyps.* -
  • TGM 1 was found to significantly correlate with tissue eosinophils, primarily expressed in submucosal layers of nasal polyps, and its fibrin polymerization activity suggests it may play a crucial role in the formation
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The unfolded protein response (UPR) or the endoplasmic reticulum (ER) stress response is a homeostatic cellular response conserved in eukaryotes to alleviate the accumulation of unfolded proteins in the ER. In the present study, we characterized the UPR in the liverwort to obtain insights into the conservation and divergence of the UPR in the land plants. We demonstrate that the most conserved UPR transducer in eukaryotes, IRE1, is conserved in , which harbors a single gene encoding IRE1.

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The liverwort Marchantia polymorpha is equipped with a wide range of molecular and genetic tools and resources that have led to its wide use to explore the evo-devo aspects of land plants. Although its diverse transcriptome data are rapidly accumulating, there is no extensive yet user-friendly tool to exploit such a compilation of data and to summarize results with the latest annotations. Here, we have developed a web-based suite of tools, MarpolBase Expression (MBEX, https://marchantia.

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Aim: To clarify changes in location before hospital admission and discharge destination over the 10-year period of 2010 to 2020 and to identify prognostic factors associated with the survival in hospitals with chronic-phase inpatients.

Methods: The subjects were patients newly admitted to 12 hospitals in 2010 and 2020. The age, sex, location before hospital admission, outcomes at 90 days after admission, discharge destination, and results of 6 biochemical tests at admission were evaluated.

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The liverwort Marchantia polymorpha has been utilized as a model for biological studies since the 18th century. In the past few decades, there has been a Renaissance in its utilization in genomic and genetic approaches to investigating physiological, developmental, and evolutionary aspects of land plant biology. The reasons for its adoption are similar to those of other genetic models, e.

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Objective: There is not a known elevated prevalence of delirium in older adult cancer patients. However, it is unknown if the incidence of delirium varies by cancer type among older adult patients. Therefore, this study aimed to examine the association between the incidence of delirium and cancer type among older adult patients using a Japanese hospital-based administrative claims database.

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Chronic rhinosinusitis with nasal polyps (CRSwNP) is a chronic inflammatory disease with a high symptom burden, including nasal congestion and smell disorders. This study performed a detailed transcriptomic analysis in CRSwNP classified as eosinophilic CRS (ECRS), nonECRS according to the Japanese Epidemiological Survey of Refractory Eosinophilic Chronic Rhinosinusitis (JESREC) criteria, and a group of ECRS with comorbid aspirin intolerant asthma (Asp). Gene expression profiles of nasal polyps and the uncinate process in CRSwNP patients and normal subjects (controls) were generated by bulk RNA barcoding and sequencing (BRB-seq).

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Peroxisomes are present in eukaryotic cells and have essential roles in various biological processes. Plant peroxisomes proliferate by biosynthesis or division of pre-existing peroxisomes, degrade, or replace metabolic enzymes, in response to developmental stages, environmental changes, or external stimuli. Defects of peroxisome functions and biogenesis alter a variety of biological processes and cause aberrant plant growth.

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  • Sex determination in liverworts operates differently than in diploid organisms, featuring non-recombining sex chromosomes that maintain gene functions for both sexes during their haploid phase.
  • Researchers identified the Feminizer gene on the U chromosome, linked to female differentiation, which regulates other key genes involved in the reproductive process.
  • Phylogenetic studies suggest that the divergence of sex chromosomes occurred around 430 million years ago, highlighting that genes can retain ancestral functions even after evolving a dedicated sex determination mechanism.
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Murine double minute homolog 2 (MDM2) is an oncoprotein that induces p53 degradation via ubiquitin-ligase activity. MDM4 cooperates with MDM2-mediated p53 degradation, directly inhibiting p53 transcription by binding to its transactivation domain. Our previous study reported that the simultaneous inhibition of MDM2 and MDM4 using nutlin-3 (an inhibitor of the MDM2-p53 interaction) and chimeric small interfering RNA with DNA-substituted seed arms (named chiMDM2 and chiMDM4) more potently activated p53 than the MDM2 or MDM4 inhibitor alone and synergistically augmented antitumor effects in various types of cancer cells with the wild-type (wt) .

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We describe a simple and efficient plastid transformation method for the liverwort, Marchantia polymorpha L. Use of rapidly proliferating cells such as sporelings, which are immature thalli developing from spores, as targets made plastid transformation by particle bombardment efficient. Selection on a sucrose-free medium and linearization of the transformation vector significantly improved the recovery rate of plastid transformants.

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Background/aim: The oncoproteins murine double minute (MDM) 2 and MDM4 inactivate tumor-suppressor protein p53. Their mutual relationship with the prognosis of gastric cancer (GC) remains unknown.

Patients And Methods: Expression of MDM2, MDM4, and p53 in tumors of 241 patients with GC were evaluated immunohistochemically.

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Background: Prolonged treatment of insomnia using benzodiazepine (BZD) receptor agonists, including BZD and non-BZD hypnotic drugs, can cause drug dependence, tolerance, abuse and other adverse events. These side effects are more common and/or severe in older adults taking different hypnotic drugs concomitantly. Therefore, a single prescription is limited to 30 daily doses for most BZD receptor agonists and restrictions apply to the prescription of more than three types of hypnotic drugs in Japan.

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Bryophytes occupy a basal position in the monophyletic evolution of land plants and have a life cycle in which the gametophyte generation dominates over the sporophyte generation, offering a significant advantage in conducting genetics. Owing to its low genetic redundancy and the availability of an array of versatile molecular tools, including efficient genome editing, the liverwort has become a model organism of choice that provides clues to the mechanisms underlying eco-evo-devo biology in plants. Recent analyses of developmental mutants have revealed that key genes in developmental processes are functionally well conserved in plants, despite their morphological differences, and that lineage-specific evolution occurred by neo/subfunctionalization of common ancestral genes.

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Effects of high magnetic fields [MFs, ≥ 1 T (T)] on osteoblastic differentiation and the orientation of cells or matrix proteins have been reported. However, the effect of low MFs (< 1 T) on the orientation of bone formation is not well known. This study was performed to verify the effects of low MFs on osteoblastic differentiation, bone formation, and orientation of both cells and newly formed bone.

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Background: Major depressive disorder (MDD) is highly prevalent in Japan and frequently accompanied by insomnia that may persist even with MDD remission. Hypnotics are used for the pharmacological treatment of insomnia, but their influence on MDD recurrence or residual insomnia following MDD remission is unclear. This retrospective, longitudinal, cohort study utilized a large Japanese health insurance claims database to investigate patterns of hypnotic prescriptions among patients with MDD, and the influence of hypnotic prescription pattern on MDD recurrence.

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The liverwort Marchantia polymorpha possesses oil bodies in idioblastic oil body cells scattered in its thallus. Oil bodies are subcellular organelles in which specific sesquiterpenes and bisbibenzyls are accumulated. Therefore, a specialized system for the biosynthesis and accumulation of these defense compounds specifically in oil bodies has been implied.

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