Publications by authors named "Ikeda T"

Cognitive functions produced by large-scale neural integrations are the most representative 'emergence phenomena' in complex systems. A novel approach focusing on the instantaneous phase difference of brain oscillations across brain regions has succeeded in detecting moment-to-moment dynamic functional connectivity. However, it is restricted to pairwise observations of two brain regions, contrary to large-scale spatial neural integration in the whole-brain.

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Aim: This study aimed to investigate the safety and efficacy of tadalafil in protecting the fetus from hypoxic stress caused by repeated labor pains during delivery and preventing fetal hypoxic-ischemic encephalopathy.

Methods: The study used a three-case cohort approach. Three patients were administered 10 mg tadalafil and monitored for serious adverse events.

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Aim: This study aimed to determine the weight gain during pregnancy that minimizes the predicted probability of various perinatal adverse events according to the pre-pregnancy body mass index (BMI) and make recommendations for optimal weight gain in Japan.

Methods: The Japan Society of Obstetrics and Gynecology perinatal database for 2015-2017 was used. From the 719 723 deliveries included in this database, parturients with underlying diseases or missing data were excluded, and 419 114 deliveries were analyzed.

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Introduction: We aimed to examine the effect of uterine arterial (UtA) blood flow changes after tadalafil treatment for fetal growth restriction (FGR) using two-dimensional (2D) phase-contrast magnetic resonance imaging (PC-MRI).

Methods: We recruited 14 pregnant women with FGR aged 20-44 years, at ≥20 weeks' gestation, between May 2019 and July 2020. They underwent 2D PC-MRI for UtA blood flow measurement 3 days (interquartile range: 2-4) after diagnosis.

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In the management of post-injury patients with activity limitations, methods to prevent musculoskeletal disorders and hasten recovery are important. This randomized controlled, single-blinded study was a preliminary investigation of the combined effect of nutritional support with neuromuscular electrical stimulation (NMES) on muscle strength and thickness. Healthy young adult males (median age, 21 years) were enrolled; each of their hands was randomly assigned to one of the following four groups: Placebo, Nutrition, NMES, and Nutrition + NMES.

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Light, a nondestructive and remotely controllable external stimulus, effectively triggers a variety of electron-transfer phenomena in metal complexes. One prime example includes using light in molecular cyanide-bridged [FeCo] bimetallic Prussian blue analogues, where it switches the system between the electron-transferred metastable state and the system's ground state. If this process is coupled to a ferroelectric-type phase transition, the generation and disappearance of macroscopic polarization, entirely under light control, become possible.

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Background: The coronavirus disease 2019 (COVID-19) presents critical diagnostic challenges for managing the pandemic. We investigated the 30-month changes in COVID-19 testing modalities and functional testing sites from the early period of the pandemic to the most recent Omicron surge in 2022 in Kyoto City, Japan.

Methods: This is a retrospective-observational study using a local anonymized population database that included patients' demographic and clinical information, testing methods and facilities from January 2020 to June 2022, a total of 30 months.

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Objective: The trans-cell technique in stent-assisted coil embolization is a common treatment method for intracranial aneurysm. However, despite the frequency of its use, reports discussing its complications and their management are few. We describe a case of stent and microguidewire entanglement, which could not be removed, during treatment using the trans-cell technique.

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Article Synopsis
  • * Data from over 10,000 patients revealed no significant differences in overall survival or complications between the two methods, but PB recipients had a higher rate of chronic graft-versus-host disease (GVHD), impacting long-term survival quality.
  • * Findings suggest that while both sources are viable, BM might be more beneficial for certain patients, particularly those with specific types of cancers or higher comorbidity, emphasizing the need for personalized transplant strategies.
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Background: This study examined the bidirectional and temporal-ordinal relationship between loneliness and back pain.

Methods: Data from 7,730 participants in waves 6 (2012-2013), 7 (2014-2015), and 8 (2016-2017) of the national English Longitudinal Study of Ageing were analyzed. Back pain was graded on a scale of 0-10 (0, no discomfort; 10, unbearable pain).

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Article Synopsis
  • - Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is an effective treatment for diffuse large B-cell lymphoma (DLBCL) due to its graft-versus-lymphoma effect, but identifying which patients will benefit is challenging.
  • - Analysis of 1,268 DLBCL patients showed 3-year overall survival and progression-free survival rates at 30.3% and 21.6%, respectively, with various factors impacting patient outcomes post-transplantation.
  • - A prognostic index was developed based on four key factors that predict different 3-year progression-free survival rates, aiding in identifying patients who might benefit from allo-HSCT, though its applicability to post-chimeric
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Nogo-Nogo receptor 1 (NgR1) signaling is significantly implicated in neurodegeneration in amyotrophic lateral sclerosis (ALS). We previously showed that lateral olfactory tract usher substance (LOTUS) is an endogenous antagonist of NgR1 that prevents all myelin-associated inhibitors (MAIs), including Nogo, from binding to NgR1. Here we investigated the role of LOTUS in ALS pathogenesis by analyzing G93A-mutated human superoxide dismutase 1 (SOD1) transgenic (Tg) mice, as an ALS model, as well as newly generated LOTUS-overexpressing SOD1 Tg mice.

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Article Synopsis
  • * A case study of a 34-year-old patient shows that after initial crizotinib treatment, the disease progressed, requiring a switch to chemotherapy and later multiple treatments, including whole-brain radiotherapy.
  • * The results suggest that switching to the drug entrectinib may help alleviate symptoms related to central nervous system metastases in ROS1-fusion-positive lung cancer patients who do not respond to crizotinib.
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Objective: To evaluate the efficacy of pleurodesis using OK-432 after cardiac surgery in the neonatal period or early infancy.

Methods: We retrospectively reviewed the data of 11 consecutive patients who underwent cardiac surgery in the neonatal period or early infancy and pleurodesis using OK-432 for persistent postoperative pleural effusion in two institutions.

Results: The median age at surgery was 8 days (interquartile range [IR], 2-18) with a body weight of 2.

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Foreign body reactions (FBRs) are inadvertently observed in invading or artificially embedded materials, triggering inflammation and subsequent fibrotic processes to occur in situ. Here, we assessed the spatiotemporal formation of connective tissue around implanted materials to establish a technique using connective tissue formed by FBRs as xenografts. An acrylic resin implant, comprising a columnar inner rod and a tubular outer cylinder (OC) with several slits, was embedded in adult dairy cows.

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An 80-year-old man with no previous history of catheter ablation or cardiac surgery underwent catheter ablation for atrial tachycardia (AT). We suspected that the mechanism causing AT was re-entry indicated by the entrainment phenomenon during AT and through activation mapping with a 3-dimensional mapping system (EnSite™ X EP system; Abbott, Chicago, IL, USA). We used a multipolar catheter (Advisor™ HD Grid Mapping Catheter; Abbott) inserted into the superior vena cava (SVC) to accomplish activation mapping.

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The coronavirus disease 2019 (COVID-19) pandemic has had a major negative effect on the number of patients visiting pharmacies in Japan. The decrease in pharmacy visits during the pandemic compared with the pre-pandemic period may have increased the likelihood of adverse health outcomes; thus, it is important that pharmacy pharmacists take measures to prevent health disadvantages. In this study, we distributed a questionnaire survey to 104 pharmacy pharmacists (mainly in Kagoshima and Kumamoto Prefectures), and investigated changes in the extent of implementation and perceptions of measures considered necessary to protect patients' health between the pre-pandemic and pandemic period.

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Legionella pneumophila serogroup (SG) 1, the main cause of Legionnaires' disease, can be diagnosed using urinary antigen testing kits. However, lower respiratory tract specimen cultures are required to identify L. pneumophila SG 2-15.

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Background/aim: The (pro)renin receptor [(P)RR] plays a role not only in cardiovascular and renal diseases, but also in tumorigenesis. (P)RR contributes to the activation of the Wnt/β-catenin signaling pathway, independent of the renin-angiotensin system. Accumulating evidence has shown that (P)RR is expressed in various human cancers.

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Article Synopsis
  • A 78-year-old man experienced breathlessness and leg edema, leading to the diagnosis of constrictive pericarditis (CP) associated with a rare milk of calcium (MOC) pericardial effusion (PE).
  • Diagnostic imaging revealed a hyperdense effusion, and surgical intervention was necessary due to the patient's refractory right heart failure, during which a viscous, high-calcium PE was removed.
  • Post-surgery, the patient's symptoms improved, and follow-up tests showed that the concerning patterns in right ventricular pressure had resolved, reinforcing the importance of early diagnosis and intervention for CP with MOC PE.
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  • Thiamylal is an effective sedative for children but has serious side effects, prompting research to determine safe blood concentration levels and infusion rates.
  • Ten children aged 1-7 were monitored during continuous IV thiamylal infusion for refractory seizures, with blood concentrations measured to assess efficacy and adverse effects.
  • Results indicated that adequate sedation was achieved at higher concentrations, and an infusion rate of 3 mg/kg/h is recommended to maintain safety, while caution is advised at even higher rates.
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Although digital examination of the cervix is the standard method used worldwide for evaluating the progress of delivery, it is subjective. Transperineal ultrasound (TPU) is combined with digital evaluation for accurate assessment of fetal descent and rotation of the advanced part of the fetus. This retrospective study aimed to clarify the impact of introducing TPU on perinatal outcomes at Mie University Hospital.

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Remimazolam is a novel general anesthetic and its safety in patients with malignant hyperthermia (MH) is unknown. We used myotubes derived from the skeletal muscle of patients with MH to examine the response to ryanodine receptor 1 (RYR1) agonist and remimazolam in MH-susceptible patients. Patients underwent muscle biopsy for the Ca-induced Ca release (CICR) rate test, a diagnostic tool for MH in Japan.

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