Publications by authors named "Sugihara N"

This retrospective study developed an automated algorithm for 3D segmentation of adipose tissue and paravertebral muscle on chest CT using artificial intelligence (AI) and assessed its feasibility. The study included patients from the Boston Lung Cancer Study (2000-2011). For adipose tissue quantification, 77 patients were included, while 245 were used for muscle quantification.

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An intraoral fluoride-releasing device (IFRD) is a cost-effective tool for introducing fluoride into the oral cavity. It allows prolonged uptake of low concentrations of fluoride into teeth. We developed a new IFRD using 3D additive manufacturing and a new low-release fluoride gel.

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Rather than focusing solely on cost-effectiveness and accessibility, it is also important to assess the quality of treatments available under Japan's Public Health Insurance System (PHIS). The purpose of this retrospective study was to assess the survival rate of metal crowns used to replace first molars in a clinical setting. Only metal crowns made of 12% gold-silver-palladium alloy placed on first molars and available under the PHIS were included.

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Background: Robot-assisted surgery is widely performed for renal cell carcinoma (RCC) with inferior vena cava (IVC) tumor thrombi. Although many chemotherapeutic options are available for the treatment of unresectable RCC, there are very few reports on robot-assisted radical nephrectomy (RARN) with inferior vena cava thrombectomy (IVCT) after presurgical treatment with immune checkpoint inhibitors and tyrosine kinase inhibitors. We believe that pre-surgical treatment can provide minimally invasive surgical benefits to high-risk patients during the perioperative period.

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Background: The therapeutic effectiveness of dupilumab for severe asthma in real-world settings is yet to be prospectively investigated across multiple institutions, and uncertainties persist regarding predictive factors for its effectiveness. We aimed to assess the effectiveness of dupilumab and identify predictors of its effectiveness in real-world settings using two type-2 biomarkers: FeNO concentration and blood eosinophil count.

Methods: This prospective multicenter study included 103 patients with severe asthma.

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Introduction: The early detection of cognitive decline is key to maximizing the benefits of preventive and therapeutic interventions against dementia. Generally, dementia is first assessed by interview-based neuropsychological tests, but the lengthy interview and mental stress during the assessment process make screenings inefficient. We previously developed a rapid screening test for dementia using an eye-tracking technology (eye tracking-based cognitive assessment, ETCA) and reported its utility for clinically detecting cognitive impairment in dementia cases.

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Article Synopsis
  • Researchers are developing automated models using machine learning to predict interstitial lung abnormalities (ILAs) in CT scans, as current methods rely heavily on manual assessments, which can be less efficient.
  • The study analyzed 1,382 CT scans from the Boston Lung Cancer Study, with radiologists serving as a reference point to identify ILAs; the scans were categorized into three groups: ILA present, indeterminate, and no ILA.
  • Various machine learning classifiers were tested for accuracy, revealing that certain models performed better in identifying ILAs, highlighting the potential for automated methods to improve clinical decision-making in lung health.
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  • The Briganti nomogram, with a 5% cut-off, is used to decide if pelvic lymph node dissection (PLND) is necessary for prostate cancer patients.
  • A study analyzed data from 1,068 patients who had radical prostatectomy and found no significant oncological benefit of PLND for those with a Briganti score of 5%.
  • High PSA levels and advanced T-stage were linked to worse biochemical recurrence-free survival, while PLND did not have a meaningful impact on recurrence outcomes.
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Objective: Prevention and improvement of hypertension is one of the most important health issues worldwide. The traditional Japanese diet contributes to the prevention of some non-communicable diseases associated with hypertension. However, whether traditional Japanese dietary patterns are associated with hypertension prevalence and systolic blood pressure (SBP) worldwide remains unknown.

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  • The study explores the relationship between chronic skin damage (CSD) and its impact on mouse intestines, particularly focusing on the small intestine's response.
  • The application of sodium dodecyl sulfate to induce CSD resulted in observable changes, including villus atrophy, increased intestinal permeability, and higher levels of apoptotic cells in the small intestine.
  • Interleukin-13 (IL-13) was identified as a key factor in the damage, as its inhibition reduced intestinal injury and mast cell infiltration, suggesting that skin damage can lead to gut issues, potentially creating a “leaky gut.”
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  • * A total of 144 participants were examined, revealing that while workers in acidic environments used more protective gear and had more dental check-ups, only 2.1% showed signs of dental erosion.
  • * The findings indicate that, overall, acid exposure has a minor impact on the dental health of these workers in Japan, as no significant differences were found based on years of exposure.
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Oral mucosa inflammation can cause severe pain and interfere with eating, reducing quality of life. However, few options for self-care are available. An oral liquid bandage forms a protective film over the affected area.

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Background: Reducing the environmental impact of the food supply is important for achieving Sustainable Development Goals (SDGs) worldwide. Previously, we developed the Traditional Japanese Diet Score (TJDS) and reported in a global ecological study that the Japanese diet is associated with reducing obesity and extending healthy life expectancy etc. We then examined the relationship between the TJDS and environmental indicators.

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A sequential process via photoredox catalysis and Lewis acid mediation for C-F bond transformation of the CF unit in perfluoroalkyl groups has been achieved to transform perfluoroalkylarenes into complex fluoroalkylated compounds. A phenothiazine-based photocatalyst promotes the defluoroaminoxylation of perfluoroalkylarenes with (2,2,6,6-tetramethylpiperidin-1-yl)oxyl (TEMPO) under visible light irradiation, affording the corresponding aminoxylated products. These products undergo a further defluorinative transformation with various organosilicon reagents mediated by AlCl to provide highly functionalized perfluoroalkyl alcohols.

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Purpose: Several reporting systems have been proposed for providing standardized language and diagnostic categories aiming for expressing the likelihood that lung abnormalities on CT images represent COVID-19. We developed a machine learning (ML)-based CT texture analysis software for simple triage based on the RSNA Expert Consensus Statement system. The purpose of this study was to conduct a multi-center and multi-reader study to determine the capability of ML-based computer-aided simple triage (CAST) software based on RSNA expert consensus statements for diagnosis of COVID-19 pneumonia.

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To identify effective treatment modalities for breast cancer with acquired resistance, we first compared the responsiveness of estrogen receptor-positive breast cancer MCF-7 cells and long-term estrogen-deprived (LTED) cells (a cell model of endocrine therapy-resistant breast cancer) derived from MCF-7 cells to G-1 and 2-methoxyestradiol (2-MeO-E2), which are microtubule-destabilizing agents and agonists of the G protein-coupled estrogen receptor 1 (GPER1). The expression of GPER1 in LTED cells was low (~0.44-fold), and LTED cells displayed approximately 1.

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Sodium monofluorophosphate (NaFPO, MFP) is mainly used as an ingredient in fluoride-based dentifrices as it has a high safety profile, with one-third of the toxicity of sodium fluoride (NaF), as well as the ability to reach deep into the dentin. The purpose of this study was to assess the prevention of dentin erosion by MFP upon exposure to citric acid, which has a chelating effect, and to compare the effects to those of the conventional acidulated phosphate fluoride (APF) application method. Bovine dentin was used, and four groups were created: (i) APF (9000 ppmF, pH 3.

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Toothpaste viscosity decreases rapidly when diluted with saliva during brushing, potentially causing premature washout of high-risk caries areas and reducing the uptake of dental fluoride ions. However, no reports have examined the acid resistance of enamel from the perspective of the toothpaste's physical properties. This study aimed to elucidate the impact of toothpaste dilution on the acid resistance of the enamel, using bovine enamel as the subject.

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This study aimed to develop an automated pH-cycling system using inexpensive commercial components that can replicate pH fluctuations in the oral cavity and salivary clearance to compare demineralization characteristics with the conventional method. The study found that the newly developed cycle-1 group showed improved demineralization properties, including apparent lesion depth, surface roughness, Vickers hardness, mineral loss, and depth of demineralization, compared to the control group. Additionally, the cycle-2 group, which had a longer cycle interval, showed further improvements in the demineralization properties.

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Background: Mild blast-induced traumatic brain injury (bTBI) induces various gut symptoms resembling human irritable bowel syndrome (IBS) as one of mental and behavioral disorders. However, the underlying mechanisms remain unclear. We investigated whether the extremely localized brain impact extracranially induced by laser-induced shock wave (LISW) evoked IBS-like phenomenon including visceral hypersensitivity and intestinal hyperpermeability in rats.

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Background/aims: Recent studies indicate that probiotics, which have attracted attention as a treatment for irritable bowel syndrome, affect intestinal homeostasis. In this study, we investigated whether Zygosaccharomyces sapae (strain I-6), a probiotic yeast isolated from miso (a traditional Japanese fermented food), could improve irritable bowel syndrome symptoms.

Methods: Male Wistar rats were exposed to water avoidance stress (WAS).

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