Publications by authors named "Ito Y"

Article Synopsis
  • Identifying and adjusting for confounders is essential in observational studies to accurately estimate causal effects, as biases can lead to misleading results, even with large sample sizes.
  • The article discusses various methods to select confounders, highlighting the modified disjunctive cause criterion, which aims to control for pre-exposure covariates that influence the exposure or outcome while excluding instrumental variables.
  • It also addresses challenges in measuring confounders, introducing the E-value and Robustness value to evaluate sensitivity to unmeasured confounders, with examples drawn from the National Health and Nutritional Examination Survey.
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Background: Dupilumab exerts clinical effects, including improved sinus opacification, olfactory function, and quality of life, in patients with severe chronic rhinosinusitis with nasal polyps (CRSwNPs). Meanwhile, only a few studies have reported its effects on nasal airway resistance and olfactory function, particularly in the Japanese population. Predictors of response remain unclear.

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The transfer of nitrogen fixation (nif) genes from diazotrophs to non-diazotrophic hosts is of increasing interest for engineering biological nitrogen fixation. A recombinant Escherichia coli strain expressing Azotobacter vinelandii 18 nif genes (nifHDKBUSVQENXYWZMF, iscA, and nafU) were previously constructed and showed nitrogenase activity. In the present study, we constructed several E.

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Gemcitabine plus nab-paclitaxel (GnP) and FOLFIRINOX are widely used as first-line regimens for unresectable pancreatic cancer (PC). When GnP therapy is selected, considering patient age or condition, second-line FOLFIRINOX is sometimes difficult to administer owing to its toxicity. This study aimed to determine the recommended dose (RD) of S-IROX (S-1, oxaliplatin, and irinotecan combination) regimens in patients with unresectable PC after first-line GnP failure.

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This study aimed to identify severe gastrointestinal ailments in patients with systemic sclerosis (SSc), investigate the role of antibodies in gastrointestinal disorders, and explore the relationship between limited cutaneous SSc (lcSSc) and diffuse cutaneous SSc (dcSSc) in terms of gastrointestinal involvement and its association with skin stiffness. We used the University of California, Los Angeles, Scleroderma Clinical Trials Consortium Gastrointestinal Tract Instrument 2.0 (UCLA SCTC GIT 2.

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Laser-induced graphene (LIG) is a promising material for various applications due to its unique properties and facile fabrication. However, the electrochemical performance of LIG is significantly lower than that of pure graphene, limiting its practical use. Theoretically, integrating other conductive materials with LIG can enhance its performance.

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Aims: This study aimed to evaluate the long-term results of Japan Maternal Emergency Life-Saving (J-MELS) simulation training on obstetric healthcare providers, over a 12-month follow-up period.

Methods: A total of 273 trainees from 17 J-MELS Basic courses conducted between August 2021 and October 2023 were included. The trainees' responses to the pre- and post-tests, questionnaires, and self-reports on the usefulness of the J-MELS scenarios in actual clinical settings at 1, 6, and 12 months after the training were analyzed.

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Background: We investigated whether the initial voriconazole (VRCZ) dosing design, as determined using simulation software with a population pharmacokinetic model of Japanese patients, impacts the effectiveness and safety when compared with VRCZ initiation according to the package insert.

Methods: In this single-center retrospective observational study, we employed records from Tosei General Hospital (a 633-bed hospital), dated April 2017 to September 2023. Eligible patients were divided into the software-based simulation group, comprising patients administered initial VRCZ dosage adjustment by pharmacists using software-based simulation, and the standard therapy group, whose dosage was administered by a physician following the package insert recommendations without simulation.

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Article Synopsis
  • The study focused on identifying clinical subtypes in individuals starting long-term care in Japan and explored their links to prognosis using medical claims and care-need data.
  • Researchers analyzed data from 4,648 participants, categorizing them into six distinct clinical subtypes based on 22 diseases recorded over the previous six months.
  • The findings revealed that individuals with cardiac, respiratory and cancer, and insulin-dependent diabetes subtypes had higher risks of death and worsening care needs compared to those in the musculoskeletal and sensory subtype.
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Pancreatic cancer remains a highly lethal disease with a 5-year survival proportion of <10%. Chemoradiotherapy is a treatment option for unresectable locally advanced (UR-LA) or borderline resectable (BR) pancreatic cancer, but its efficacy is not sufficient. Induction of the synergistic effect of irradiation and immune checkpoint inhibitors can be an attractive strategy.

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Background/aim: When hormone therapy (HT) is combined with radiotherapy, understanding the recovery of testosterone levels after the end of HT becomes crucial for considering subsequent therapy. The aim of this study was to determine the factors influencing the time to recovery of testosterone levels after discontinuation of HT and the likelihood of recovery.

Patients And Methods: The study included a total of 108 patients with prostate cancer who were treated with GnRH agonist in combination with radiotherapy and followed up for at least 12 months after discontinuation of the GnRH agonist.

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The misdiagnosis of headache disorders is a serious issue, and AI-based headache model diagnoses with external validation are scarce. We previously developed an artificial intelligence (AI)-based headache diagnosis model using a database of 4000 patients' questionnaires in a headache-specializing clinic and herein performed external validation prospectively. The validation cohort of 59 headache patients was prospectively collected from August 2023 to February 2024 at our or collaborating multicenter institutions.

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The downstream receptor kinase (Drk), a homologue of human GRB2, participates in the signal transduction from the extracellular to the intracellular environment. Drk receives signals through the interaction of its Src homology 2 (SH2) domain with the phosphorylated tyrosine residue in the receptor tyrosine kinases (RTKs). Here, we present the solution NMR structure of the SH2 domain of Drk (Drk-SH2), which was determined in the presence of a phosphotyrosine (pY)-containing peptide derived from a receptor tyrosine kinase, Sevenless (Sev).

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Article Synopsis
  • Complete surgical resection with negative margins is crucial for treating rectal cancer, but local recurrence can be challenging; a new surgical technique was developed to resect the pubic arch and ischial bone for recurrent cases.
  • A case study demonstrated this technique on a patient with a fourth local recurrence where the tumor invaded the pubic arch; an osteotomy successfully removed the affected bones while ensuring no cancer cells were present in the margins.
  • This innovative approach may significantly aid in achieving complete resection in patients with recurrent rectal cancer, improving treatment outcomes.
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This review outlines the epidemiology, characteristics, risk factors, and prognosis of peritoneal dialysis (PD)-related peritonitis, PD catheter-related infections, and the effects of assisted PD in elderly patients from the Japanese perspective. Based on the literature, the incidence of peritonitis is likely to be higher in elderly patients than in younger patients. The most frequent causative bacteria in elderly patients are Gram-positive bacteria, as in adult PD patients, most commonly due to transcatheter infection.

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Article Synopsis
  • * Interviews with 11 experts identified eight categories of barriers, leading to a questionnaire that surveyed 112 medical professionals involved in ESKD care, with a response rate of 47.3%.
  • * The analysis revealed five main barriers to CKM, with "lack of palliative care experience" and "lack of support system" being the most significant, while most respondents viewed CKM as a viable treatment option for ESKD.
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Objective: Neurofibromatosis type 1 (NF1) is associated with vascular fragility, which results in aneurysms, arteriovenous fistulas, and dissections. Here, we describe a case of endovascular treatment of a ruptured occipital artery aneurysm that occurred after a craniotomy in a patient with NF1.

Case Presentation: A 46-year-old man with a history of NF1 underwent a right lateral suboccipital craniotomy to remove a cavernous hemangioma in the right middle cerebellar peduncle.

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Background: Neuronal dysfunction is implicated in the pathophysiology of asthma and functional dyspepsia (FD). However, the relationship between these diseases remains unclear.

Objective: This study aimed to clarify the clinical implications of comorbid FD in asthma and to explore the unified pathway between asthma and FD by focusing on airway neuronal dysfunction.

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Objective: To analyze the anatomical choroidal vascular layers in topical treatment-naïve diabetic retinopathy (DR) eyes.

Design: A retrospective, clinical case-control study.

Methods: A total of 328 eyes from 228 patients with treatment-naive DR and 192 eyes matched for axial length from 174 healthy controls were enrolled in the study.

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Producing a polarized lanthanum (La) target with high polarization and long relaxation time is crucial for realizing time-reversal violation experiments using polarized neutron beams. We use a LaAlO3 crystal doped with a small amount of Nd3+ ions for the polarized lanthanum target. Optimizing the amount of Nd3+ ions is considerably important because the achievable polarization and relaxation time strongly depend on this amount.

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We aimed to determine the impact of air inflow into vacuum-type immobilization devices (VIDs) on setup errors. We assigned 70 patients undergoing radiotherapy for head and neck cancer to groups V (n = 34) or N (n = 36) according to whether the VIDs were deflated weekly or not deflated during treatment, respectively. We calculated systematic errors (Σ) as the standard deviations (SDs) of mean errors, and random errors (σ) as the root mean square of SDs in each patient.

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Article Synopsis
  • This study investigates the impact of eruptive calcified nodules (CNs) on patient outcomes after percutaneous coronary intervention (PCI) compared to other calcified lesions, finding worse results for those with CNs.
  • Researchers analyzed data from 51 patients who underwent PCI for calcified lesions, revealing that 54% of those with eruptive CNs had in-stent CNs at the 8-month follow-up, indicating more neointimal tissue growth.
  • The results showed that patients with eruptive CNs experienced a significantly higher target lesion revascularization (TLR) rate both at 1 year (31.3%) and at 5 years (43.8%) compared
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Article Synopsis
  • The study evaluated the long-term outcomes and risk factors associated with renal oligohydramnios in fetuses from 2002 to 2023, involving 131 cases.
  • Findings indicated that significant percentages of cases resulted in pregnancy termination, intrauterine fetal death, neonatal death, and postneonatal death, with survival rates of 30%.
  • Key risk factors identified for fetal and postneonatal death included earlier gestational age at oligohydramnios onset and low birth weight, emphasizing the importance of risk assessment for better outcomes.
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