Publications by authors named "K. Itoh"

Commensal bacteria affect host health by producing various metabolites from dietary carbohydrates via bacterial glycometabolism; however, the underlying mechanism of action remains unclear. Here, we identified Streptococcus salivarius as a unique anti-obesity commensal bacterium. We found that S.

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Tissue-level oscillation is achieved by tissue-intrinsic clocks along with network-dependent signals originating from distal organs and organismal behavior. Yet, it remains unexplored whether maternal circadian rhythms during pregnancy influence fetal rhythms and impact long-term susceptibility to dietary challenges in offspring. Here, we demonstrate that circadian disruption during pregnancy decreased placental and neonatal weight yet retained transcriptional and structural maturation.

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In eukaryotes, mRNAs with long poly(A) tails are translationally active, but deadenylation and uridylation of these tails generally cause mRNA degradation. However, the fate of uridylated mRNAs that are not degraded quickly remains obscure. Here, using tail-seq and microinjection of the 3' region of mRNA, we report that some mRNAs in starfish are re-polyadenylated to be translationally active after deadenylation and uridylation.

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  • The study assessed the effectiveness of serum type 4 collagen 7S (COL4-7S) compared to the Enhanced Liver Fibrosis (ELF) score in detecting liver fibrosis in patients with metabolic dysfunction-associated steatotic liver disease (MASLD).
  • Among 1,368 patients, 794 were analyzed, revealing that both COL4-7S and ELF scores rise with increasing fibrosis, but COL4-7S showed significantly better performance for identifying advanced fibrosis (≥2) especially in diabetic patients.
  • Overall, COL4-7S proved to be at least as effective as the ELF score in diagnosing advanced liver disease in MASLD patients.
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We report the remote stereocontrol of all-carbon quaternary γ-centers via an ene-reductase (ERED)-catalyzed desymmetrization of prochiral cyclohexadienones. By leveraging high-throughput experimentation (HTE) protocols, we were able to rapidly identify EREDs capable of desymmetrizing both spirocyclic cyclohexadienones and non-spirocyclic 2,6-disubstituted cyclohexadienone substrates in up to 85% yield with excellent levels of stereoselectivity (up to >99% ee and >20:1 dr) under mild reaction conditions.

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Background And Aims: To prevent end-stage renal disease caused by diabetic kidney disease, we created a predictive model for high-risk patients using machine learning.

Methods And Results: The reference point was the time at which each patient's estimated glomerular filtration rate (eGFR) first fell below 60 mL/min/1.73 m.

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  • The study investigates non-acquired immunodeficiency syndrome-defining malignancies (NADMs) among people living with hemophilia and HIV in Japan, focusing on the period after the approval of direct-acting antivirals for hepatitis C virus (HCV).
  • A nationwide survey was conducted across 395 HIV treatment facilities, collecting data on 328 individuals from 2015 to 2022, which revealed that liver cancer was the most common NADM, accounting for 43% of cases identified.
  • The findings indicate a significantly higher rate of liver cancer and other malignancies in this population, particularly in younger patients, emphasizing the importance of regular cancer screening and preventive strategies for PLWH
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  • - In the CAPItello-291 study, capivasertib combined with fulvestrant showed improved progression-free survival (PFS) compared to placebo in patients with advanced HR-positive/HER2-negative breast cancer, including those with specific genetic alterations (PIK3CA, AKT1, or PTEN).
  • - Among the 708 total patients, 78 were from Japan, where results also indicated a numerical PFS benefit for the capivasertib-fulvestrant group, suggesting consistency with global findings.
  • - The safety profile for the Japanese subgroup was similar to that of the worldwide population, indicating no new safety concerns, thus supporting the efficacy of the treatment approach.
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Head and neck squamous cell carcinoma (HNSCC) has a low five-year survival rate because of its high rate of recurrence and metastasis. After surgical resection or radiation, the main treatments for HNSCC, patients sometimes experience functional or aesthetic disorders. Therefore, there is a great demand for the development of non-surgical treatment strategies to improve clinical outcomes and patients' quality of life.

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The isotopic compositions of samples returned from Cb-type asteroid Ryugu and Ivuna-type (CI) chondrites are distinct from other carbonaceous chondrites, which has led to the suggestion that Ryugu/CI chondrites formed in a different region of the accretion disk, possibly around the orbits of Uranus and Neptune. We show that, like for Fe, Ryugu and CI chondrites also have indistinguishable Ni isotope anomalies, which differ from those of other carbonaceous chondrites. We propose that this unique Fe and Ni isotopic composition reflects different accretion efficiencies of small FeNi metal grains among the carbonaceous chondrite parent bodies.

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Background: The MANTIS Closure Device (MCD; Boston Scientific, Marlborough, Massachusetts, USA) is a reopenable clip with a sharp claw used for closure after endoscopic submucosal dissection (ESD). We evaluated the effectiveness of the MCD for fast and complete closure after colorectal ESD.

Methods: Cases involving closure with the MCD after ESD of 20-60-mm colorectal lesions between April 2023 and January 2024 were reviewed.

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Pancreatic ductal adenocarcinoma (PDAC) poses significant challenges due to its high mortality, making it a critical area of research. This retrospective observational study aimed to analyze real-world data from comprehensive genome profiling (CGP) of Japanese patients with PDAC, mainly focusing on differences in gene detection rates among panels and the implications for homologous recombination deficiency (HRD) status. This study enrolled 2568 patients with PDAC who had undergone CGP between June 2019 and December 2021 using data from the nationwide Center for Cancer Genomics and Advanced Therapeutics database.

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  • The study investigates the effectiveness of durvalumab combined with chemoradiotherapy (CRT) versus CRT alone in treating locoregional recurrence of non-small-cell lung cancer (NSCLC) after complete resection.
  • Using propensity score analysis to adjust for confounding variables, the research involved 119 patients in the CRT-D group and 111 in the CRT group, noting differences in gender distribution and adenocarcinoma rates.
  • Results indicated that the median progression-free survival was significantly longer in the CRT-D group (25.4 months) compared to the CRT group (11.5 months), suggesting that the combination treatment could be a beneficial strategy for these patients.
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Introduction: The Protek Duo (PtD) dual lumen, single cannula was developed as a percutaneous system for temporary mechanical support, inserted through the internal jugular vein (IJ) for both atrial inflow and pulmonary artery outflow. Outcomes of PtD compared to alternative Peripheral Right Ventricular Assist Device (pRVAD) methods are limited.

Methods: A retrospective analysis was conducted of pRVAD recipients from January 2017 - February 2022 ( = 111).

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We previously showed that several polymorphisms in genes encoding pattern recognition receptors that cause amino acid substitutions alter pathogen recognition ability and disease susceptibility in pigs. In this study, we expanded our analysis to a wide range of immune-related genes and investigated polymorphism distribution and its influence on pneumonia in multiple commercial pig populations. Among the polymorphisms in 42 genes causing 634 amino acid substitutions extracted from the swine genome database, 80 in 24 genes were found to have a minor allele frequency of at least 10% in Japanese breeding stock pigs via targeted resequencing.

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  • The study focuses on using circulating tumor DNA (ctDNA) analysis to identify homologous recombination deficiency (HRD) and BRCA1/2 and ATM mutations in patients with advanced pancreatic cancer (APC).
  • Out of 702 APC patients analyzed, 4.8% had BRCA1/2 mutations and 4.4% had ATM mutations, with those having BRCA mutations showing significantly better response rates to platinum-based chemotherapy compared to those without.
  • ctDNA profiling is suggested as a valuable, non-invasive method for assessing mutation status and selecting appropriate treatments in advanced pancreatic cancer, offering a practical approach to HRD screening.
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Pyrochlore magnets have attracted interest as systems for realizing critical phenomena, rich magnetic structures, associated topological band structures, and nontrivial quantum phases. NaCo(CO)Cl is a pseudospin-1/2 antiferromagnet in which the Coions form a pyrochlore network. Its structural and magnetic properties were investigated using magnetization, heat capacity, ESR, single-crystal x-ray diffraction, powder neutron diffraction and powder inelastic neutron scattering.

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Phytochemical study on the flowers of Hypericum formosanum Maxim. (Hypericaceae) led to the isolation of formohyperins G-L (1-6), whose structures were assigned by detailed spectroscopic analysis. Formohyperins G-L (1-6) are new benzoylphloroglucinols substituted by a C unit, a prenyl group, and a methyl group.

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  • The study compared the glaucoma detection accuracy of a new head-mounted binocular visual perimeter screening program (ISP) with that of frequency doubling technology (FDT).
  • It involved 168 eyes (including non-glaucoma and glaucomatous eyes) and found that ISP performed comparably or better than FDT in detecting different stages of glaucoma, with specific AUC values reported.
  • Additionally, ISP required significantly less testing time than FDT, suggesting it could be an effective and efficient tool for glaucoma screening in larger populations.
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Objective: In this study, we investigated whether the COVID-19 pandemic affected achievement of guideline targets for HbA1c, blood pressure (BP), and low-density lipoprotein (LDL) cholesterol in people with diabetes mellitus (DM).

Materials And Methods: Data for 556 people with DM who were treated regularly for 4 years before and during the COVID-19 pandemic in Japan were analyzed in this retrospective study. Achieved targets were defined as HbA1c < 7.

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Introduction: It is challenging for pregnant women with type 1 diabetes to maintain optimum glucose level to attain good neonatal outcomes. This study evaluated the efficacy of sensor-augmented insulin pump (SAP) with a predictive low-glucose suspend (PLGS) system in pregnant Japanese women with type 1 diabetes.

Materials And Methods: SAP with PLGS was used in 11 of the 22 women with type 1 diabetes who delivered between 2011 and 2021 at the two medical institutions in Japan.

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Background: The most recommended treatment for stage IV EGFR-positive lung cancer is osimertinib monotherapy. The dosage of osimertinib is fixed at 80 mg/day regardless of body surface area (BSA), however some patients withdraw or reduce the dosage due to adverse events (AEs).

Methods: We performed a retrospective cohort study of 98 patients with EGFR mutation-positive non-small cell lung cancer (NSCLC), who received 80 mg osimertinib as the initial treatment.

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  • NAD + is crucial for various cellular functions and lower levels may be linked to cancer, sparking interest in how it changes in cancer patients undergoing surgery.
  • This study analyzed NAD + dynamics in 99 patients with different digestive cancers by measuring blood samples and found that while NAD + levels stayed stable post-surgery, nicotinamide mononucleotide (NMN) levels dropped and recovered differently based on cancer type.
  • The research suggests that understanding individual NAD + levels could lead to personalized supplementation strategies for cancer patients during treatment.
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