1,640,244 results match your criteria: "Japan; Clinical Research Center National Hospital Organization[Affiliation]"

Organelle targeting is a useful approach in drug development for cancer therapy. Peptide amphiphiles are good candidates for targeting specific organelles because they can be engineered into a wide range of molecular structures, enabling customization for specific functional needs. We have developed a peptide amphiphile, C16-(EY)3, that can respond to tyrosine kinase activity and undergo phosphorylation inside cancer cells.

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External female genital mutilation (EFGM) is a type of traumatic mating in which males damage female genitalia, resulting in the loss of female re-mating ability. This study examined whether sexual conflict underlies EFGM by examining the possible female reproductive costs from the decreased number of matings in spider, . The female typically receives sperm from a male twice during a mating bout.

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The brain optimizes timing behaviour by acquiring a prior distribution of target timing and integrating it with sensory inputs. Real events have distinct temporal statistics (e.g.

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Woody and herbaceous plants are the main components of global terrestrial ecosystems, and their growth, adaptation and survival depend largely on the metabolism of shoots and roots. Therefore, understanding size-scaling of metabolic rates in woody and herbaceous plants, and in shoots and roots, is a fundamental issue in ecology. However, few empirical studies have examined metabolic scaling exponents across a wide range of plant sizes.

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Latitudinal cline of ocean dependence in a diadromous fish.

Proc Biol Sci

January 2025

Atmosphere and Ocean Research Institute, The University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8564, Japan.

Article Synopsis
  • Diadromous fishes show a pattern of reliance on oceans in high latitudes versus rivers in low latitudes, driven by differences in aquatic productivity.
  • Research suggests that migratory salmonids exhibit greater ocean dependency and weight gain at higher latitudes, while freshwater growth decreases with latitude.
  • These findings highlight variations in life history among salmonid migrants and suggest the existing definition of anadromy might not adequately reflect the complexities of river-ocean migration.
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The promise of community-driven preprints in ecology and evolution.

Proc Biol Sci

January 2025

Evolution and Ecology Research Centre, School of Biological, Earth and Environmental Sciences, University of New South Wales, Sydney, New South Wales 2052, Australia.

Publishing preprints is quickly becoming commonplace in ecology and evolutionary biology. Preprints can facilitate the rapid sharing of scientific knowledge establishing precedence and enabling feedback from the research community before peer review. Yet, significant barriers to preprint use exist, including language barriers, a lack of understanding about the benefits of preprints and a lack of diversity in the types of research outputs accepted (e.

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Transcription near arrested DNA replication forks triggers ribosomal DNA copy number changes.

Nucleic Acids Res

January 2025

Laboratory of Genome Regeneration, Institute for Quantitative Biosciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo113-0032, Japan.

Article Synopsis
  • Sir2 is a histone deacetylase that helps maintain the stability of ribosomal RNA genes in budding yeast by preventing DNA breaks from leading to changes in rDNA copy number.
  • It does this by suppressing transcription near issues that arise during DNA replication, which can otherwise provoke double-strand breaks (DSBs) and subsequent DNA repair processes.
  • When Sir2 is absent, increased transcription can lead to DSBs, resulting in unstable rDNA copy numbers and the formation of extrachromosomal DNA, highlighting the importance of Sir2 in maintaining rDNA integrity.
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Aim: This study aimed to reestimate the prevalence of hearing loss based on the updated World Health Organization hearing loss classification and investigate whether existing hearing screening criteria could efficiently screen for frailty or cognitive deficit.

Methods: Data collected from community dwellers aged 40-91 years included 2325 samples. Health checkup hearing screening used were as follows: (A) 30 dB both at 1 and 4 kHz and (B) 30 dB at 1 kHz and 40 dB at 4 kHz were used.

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Aim: Fatigue is a common health problem in older adults. Chronic pain is associated with fatigue. However, the longitudinal association between chronic pain and the incidence of subjective fatigue among community-dwelling older adults remains unclear.

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Is Well-being Associated with Burnout? From a Multi-center Cross-sectional Study in Taiwan.

J Occup Environ Med

January 2025

Department of Digital Mental Health, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan.

Article Synopsis
  • The study examines the relationship between well-being and burnout among 242 Taiwanese workers, using validated assessment tools for both well-being and burnout.
  • Positive Emotion and Engagement were found to significantly correlate with personal burnout, while Positive Emotion, Engagement, and Relationships were linked to work-related burnout.
  • The findings suggest that improving workplace well-being can help reduce burnout, with different aspects of well-being influencing burnout in distinct ways.
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Assessing the reliability and feasibility of quality indicators used to evaluate long-term care for older adults.

Geriatr Gerontol Int

January 2025

Department of Gerontological Homecare and Long-Term Care Nursing, Division of Health Science and Nursing, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Tokyo, Japan.

Aim: Standardized quality indicators for long-term care (QIs-LTC) were previously developed to ensure high-quality holistic nursing care for older adults. This research aimed to assess the feasibility and reliability of unfavorable health outcomes measured by the QIs-LTC and proposed strategies for improvement.

Methods: Thirty-nine pairs of home care nurses assessed 53 clients.

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Background: A larger joint line convergence angle (JLCA) increases the stress load on the medial compartment. Few reports, however, have discussed the effect of the JLCA on the cartilage status and clinical outcomes after opening-wedge high tibial osteotomy (OWHTO).

Purpose/hypothesis: To reveal the effect of the JLCA on clinical results after OWHTO.

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Epstein-Barr virus-induced 3 (EBI3) functions as a component of the heterodimer cytokine IL-27, which regulates innate and acquired immune responses. The expression of EBI3 gene is induced by Toll-like receptors (TLRs). Repeated treatment with imiquimod (IMQ), a TLR7 agonist, induces splenomegaly and cytopaenia due to increased splenic function.

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Objective: This study aims to identify factors associated with the detectability of the right adrenal vein (RAV) on preoperative contrast-enhanced CT scans of adrenal venous sampling (AVS) in the era of high-resolution CT (HRCT).

Materials And Methods: In this retrospective study, 36 patients (15 men and 21 women; mean age, 56 y) who underwent preoperative contrast-enhanced CT [11 patients in HRCT with 0.25 mm detector matrix (Cannon Medical Systems) and 25 patients in conventional multidetector CT with 0.

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In Egypt, knowledge about vector-borne bacterial pathogens in camels remains limited. To address this gap, 181 blood samples from adult one-humped camels (Camelus dromedarius) in the greater Cairo metropolitan area were collected from October 2021 to March 2022. Through PCR assays, four pathogens were detected, where Anaplasmataceae being the most common (54.

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Amyloid fibril formation of α-synuclein (αSN) is a hallmark of synucleinopathies. Although the previous studies have provided numerous insights into the molecular basis of αSN amyloid formation, it remains unclear how αSN self-assembles into amyloid fibrils in vivo. Here, we show that αSN amyloid formation is accelerated in the presence of two macromolecular crowders, polyethylene glycol (PEG) (MW: ~10,000) and dextran (DEX) (MW: ~500,000), with a maximum at approximately 7% (w/v) PEG and 7% (w/v) DEX.

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Mitochondrial genome diversity drives heterogeneity in HCC.

Hepatology

November 2024

Division of Digestive and Liver Diseases, Department of Internal Medicine, Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, Texas, USA.

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Tarlatamab is a bispecific T-cell engager immunotherapy targeting delta-like ligand 3 (DLL3) and the cluster of differentiation 3 (CD3) molecule. In the phase 2 DeLLphi-301 trial of tarlatamab for patients with previously treated small cell lung cancer, tarlatamab 10 mg every 2 weeks achieved durable responses and encouraging survival outcomes. Analyses of updated safety data from the DeLLphi-301 trial demonstrated that the most common treatment-emergent adverse events were cytokine release syndrome (53%), pyrexia (38%), decreased appetite (36%), dysgeusia (32%), and an emia (30%).

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Acetyl xylan esterase plays a crucial role in the degradation of xylan, the major plant hemicellulose, by liberating acetic acid from the backbone polysaccharides. Acetyl xylan esterase B from Aspergillus oryzae, designated AoAxeB, was biochemically and structurally investigated. The AoAxeB-encoding gene with a native signal peptide was successfully expressed in Pichia pastoris as an active extracellular protein.

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This study aimed to develop the "Home Hospice Nursing Care Scale" to assess the care provided by visiting nurses to patients with end-stage cancer and evaluate its reliability and validity. A draft of the scale was created based on a descriptive survey conducted among oncology nurse specialists and certified oncology nurses working as home-visit nurses. A questionnaire survey was administered to 1,770 home-visit nurses working at 296 functionally strengthening home-visit nursing establishments.

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Objective: This study aimed to investigate the collagen fiber structure of the subcutaneous fascia, a connective tissue layer between the skin and epimysium.

Methods: Fascia samples with varying extensibility were examined using biochemical and microscopic methods.

Results: Loose fascia, the more extensible type, displayed sparsely distributed collagen fibers, while dense fascia showed tightly packed collagen fiber bundles.

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Background: Sleep is a conserved physiological phenomenon across species. It is mainly controlled by two processes: a circadian clock that regulates the timing of sleep and a homeostat that regulates the sleep drive. Even cnidarians, such as Hydra and jellyfish, which lack a brain, display sleep-like states.

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Objective: Dictyostelium differentiation-inducing factors 1 and 3 [DIF-1 (1) and DIF-3 (2), respectively], along with their derivatives, such as Ph-DIF-1 (3) and Bu-DIF-3 (4), demonstrate antibacterial activity in vitro against Gram-positive bacteria, including methicillin-sensitive Staphylococcus aureus (MSSA), methicillin-resistant S. aureus (MRSA), vancomycin-sensitive Enterococcus faecalis (VSE), and vancomycin-resistant Enterococcus faecium [VRE (VanA)]. This study investigates the therapeutic potential of DIF compounds against these Gram-positive bacteria.

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