Publications by authors named "Arima M"

Cytolytic ETosis is a type of programmed cell death distinct from apoptosis and necrosis and plays a major role in the innate immune system and disease progression. Through the process of ETosis, cells release their chromatin with diverse antimicrobial proteins into the extracellular milieu, forming extracellular traps (ETs). Although ETosis has been reported in several leukocyte types, few studies have compared ETosis and the component proteins of ETs in leukocytes.

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Purpose: To assess the safety and efficacy of ripasudil for retinopathy of prematurity (ROP).

Study Design: Phase 1/2, multicenter, open-label, single-arm, 12-week clinical trial.

Methods: Infants born with gestational age (GA) of ≤ 32 weeks or weight of ≤ 1500 g with zone I or II, ≥ stage 1, ROP in both eyes were enrolled.

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Aims/hypothesis: Diabetic retinopathy is characterised by neuroinflammation that drives neuronal and vascular degenerative pathology, which in many individuals can lead to retinal ischaemia and neovascularisation. Infiltrating macrophages and activated retina-resident microglia have been implicated in the progression of diabetic retinopathy, although the distinct roles of these immune cells remain ill-defined. Our aim was to clarify the distinct roles of macrophages/microglia in the pathogenesis of proliferative ischaemic retinopathies.

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Background: The basophil activation test (BAT) has high sensitivity and specificity for diagnosing Hymenoptera venom allergy and is useful for predicting the clinical sensitivity of bee venom-allergic patients after venom immunotherapy. Patients sensitized to Hymenoptera venom are at risk for systemic reactions (SRs) to subsequent stings. Therefore, a tool that can predict the occurrence of SRs and the severity of Hymenoptera stings is needed.

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Article Synopsis
  • * Disorders involving eosinophilic inflammation often lead to high-viscosity mucus accumulation, affecting conditions such as chronic rhinosinusitis and allergic asthma, and can result in severe tissue damage.
  • * The review discusses the challenges posed by eosinophilic mucus, including its altered properties due to eosinophil aggregation, which contributes to persistent inflammation and potential organ damage.
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Background: Airway obstruction caused by viscous mucus is an important pathophysiologic characteristic of persistent inflammation, which can result in organ damage.

Objective: We investigated the hypothesis that the biophysical characteristics of accumulating granulocytes affect the clinical properties of mucus.

Methods: Surgically acquired nasal mucus samples from patients with eosinophilic chronic rhinosinusitis and neutrophil-dominant, noneosinophilic chronic rhinosinusitis were evaluated in terms of computed tomography density, viscosity, water content, wettability, and protein composition.

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  • A new method for measuring fish bioelectric signals using one internal electrode and one external electrode in seawater could help manage farmed fish health and improve understanding of wild fish physiology.
  • Initial attempts didn’t reliably capture ECG R-waves, but researchers found that positioning the internal electrode near the heart improved results for multiple fish species.
  • The optimized method allows for simultaneous ECG measurements of several fish with just one external electrode, making it more efficient than traditional techniques.
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Comprehensive knowledge of quantitative and qualitative research systematizes scholarly research and enhances the quality of research output. Scientific researchers must be familiar with them and skilled to conduct their investigation within the frames of their chosen research type. When conducting quantitative research, scientific researchers should describe an existing theory, generate a hypothesis from the theory, test their hypothesis in novel research, and re-evaluate the theory.

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  • Extramammary Paget's disease (EMPD) is a skin condition linked to FOXA1 expression, which is associated with estrogen receptor alpha (ER) and might play a role in breast cancer development.
  • In a study involving 16 patients, all showed strong FOXA1 expression, while only 44% had detectable ER expression, with varying intensities.
  • The findings suggest that while FOXA1 is consistently present in EMPD, ER expression is inconsistent, but hormone therapy could be beneficial for patients with ER-positive EMPD.
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Objectives: This study examined the effectiveness of a newly developed work-family life support program on the work-family interface and mental health indicators among Japanese dual-earner couples with a preschool child(/ren) using a randomized controlled trial with a waitlist.

Methods: Participants who met the inclusion criteria were randomly allocated to the intervention or the control groups (n = 79 and n = 85, respectively). The program comprised two 3-h sessions with a 1-month interval between them and provided comprehensive skills by including self-management, couple management, and parenting management components.

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We aimed to verify whether the intravitreal injection of small molecule compounds alone can create photoreceptor cells in mouse models of retinal degeneration. Primary cultured mouse Müller cells were stimulated in vitro with combinations of candidate compounds and the rhodopsin expression was measured on day 7 using polymerase chain reaction and immunostaining. We used 6-week-old N-methyl-N-nitrosourea-treated and 4-week-old rd10 mice as representative in vivo models of retinal degeneration.

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Introduction: Curative management after endoscopic resection (ER) for esophageal squamous cell carcinoma (ESCC), which invades the muscularis mucosa (pMM-ESCC) or shallow submucosal layer (pSM1-ESCC), has been controversial.

Methods: We identified patients with pMM-ESCC and pSM1-ESCC treated by ER. Outcomes were the predictive factors for regional lymph node and distant recurrence, and survival data were based on the depth of invasion, lymphovascular invasion (LVI), and additional treatment immediately after ER.

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To clarify the differences and similarities in the cytokine profiles of macrophage activating syndrome (MAS) between systemic lupus erythematosus (SLE) and adult-onset Still's disease (AOSD). The study participants included 9 patients with MAS-SLE, 22 with non-MAS-SLE, 9 with MAS-AOSD, and 13 with non-MAS-AOSD. Serum cytokine levels were measured using a multiplex bead assay.

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Galectin-10 is a member of the lectin family and one of the most abundant cytoplasmic proteins in human eosinophils. Except for some myeloid leukemia cells, basophils, and minor T cell populations, galectin-10 is exclusively present in eosinophils in the human body. Galectin-10 forms Charcot-Leyden crystals, which are observed in various eosinophilic diseases.

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Background: As a first step in identifying the developmental pathways of pulmonary abnormalities in rheumatoid arthritis (RA), we sought to determine the existing and changing patterns of pulmonary abnormalities.

Methods: We conducted a retrospective cohort study of consecutive patients with RA who underwent high-resolution computed tomography before and during biologic therapy. The presence of 20 pulmonary abnormalities and the changes in those abnormalities were recorded.

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Intraretinal hyperreflective foci (HRF) are significant biomarkers for diabetic macular edema. However, HRF at the vitreoretinal interface (VRI) have not been examined in diabetic retinopathy (DR). A prospective observational clinical study with 162 consecutive eyes using OCT imaging showed significantly increased HRF at the VRI during DR progression (P < 0.

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Purpose: Detecting subtle vitreoretinal interface (VRI) findings, such as a posterior hyaloid membrane, is difficult with conventional retinal imaging. We compared ultra-high-resolution spectral domain optical coherence tomography (UHR-SD-OCT) with standard-resolution OCT (SD-OCT) for the imaging of VRI abnormalities in diabetic retinopathy (DR).

Methods: This prospective cross-sectional study included 113 consecutive patients (91 patients with diabetes and 22 healthy controls).

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  • Solar lentigo (SL) is a type of skin discoloration caused by sun exposure, characterized by excess melanin in the skin's outer layer and changes in the dermis.
  • The study found that SL lesions have reduced levels of type IV collagen, crucial for the basement membrane's structure, which affects the interaction between skin cells.
  • The research identified that while dermal stem cells can boost collagen production through exosomes, this process is impaired in SL conditions, resulting in ongoing melanin build-up in the dermis.
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The main analyzed aspect of lithium-ion battery (LIB) degradation so far has been capacity fading. On the other hand, interest in efficiency degradation has also increased in recent years. Battery aggregation, which is expected to absorb the surplus of variable renewable energies such as photovoltaic energy, is affected by efficiency degradation in terms of the decreases in the economic gain and renewable energy use.

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The self-duplication and differentiation of dermal stem cells are essential for the maintenance of dermal homeostasis. Fibroblasts are derived from dermal stem cells and produce components of connective tissue, such as collagen, which maintains the structure of the dermis. Cell-cell communication is required for the maintenance of tissue homeostasis, and the role of exosomes in this process has recently been attracting increasing attention.

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Purpose: To investigate the relevance of microaneurysm morphology in optical coherence tomography angiography (OCTA) image averaging and fluorescein leakage in diabetic retinopathy (DR).

Methods: In 38 consecutive patients with DR, ten consecutive 3- × 3-mm fovea-centered OCTA (HS100, Canon Inc., Tokyo, Japan) and fluorescein angiography (FA) were performed, and averaged OCTA images were created based on the 10 images.

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  • Aging leads to increased levels of INHBA/Activin-A in the human epidermis, which is linked to thinning of the skin and reduced cell proliferation.
  • The study found that as INHBA/Activin-A levels rose, there was a corresponding decrease in the number of epidermal stem/progenitor cells and the overall skin thickness in older individuals.
  • Activin-A was shown to inhibit the proliferation of these stem/progenitor cells, suggesting it plays a role in age-related skin changes.
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