5,746 results match your criteria: "Nagoya City University Graduate School Of Medical Sciences.[Affiliation]"

Background: Ultrasound guidance is commonly used for accessing difficult peripheral veins. For successful access, a tourniquet is required for venodilation. Tourniquets decrease the compressibility and increase the diameter of veins; they also obfuscate artery-vein differentiation on ultrasound.

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  • Alzheimer's disease is marked by the buildup of amyloid β and tau proteins, leading to neuroinflammation primarily driven by activated glial cells, which worsens the condition.
  • Researchers found that the cannabinoid receptor type II (Cnr2/Cb2) is upregulated in both mouse models of Alzheimer's and in human brain tissue affected by the disease, suggesting a potential therapeutic role.
  • Administering JWH 133, a specific CB2 agonist, improved cognitive function in mice with Alzheimer's symptoms by reducing neuroinflammation and harmful astrocyte responses, indicating that targeting the CB2 receptor could be a promising strategy for treating Alzheimer's and other neurodegenerative diseases.
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  • - The study addresses challenges in accurately segmenting the hippocampus for analyzing neurodegenerative diseases using quantitative susceptibility mapping (QSM).
  • - A new convolutional neural network model, called 3D residual UNET, was developed and trained on brain image data from Alzheimer's and mild cognitive impairment patients to extract magnetic susceptibility values from the hippocampus.
  • - Results showed that the model achieved a high accuracy in segmentation and a strong correlation between magnetic susceptibility values and hippocampal volume, indicating its potential for improving hippocampal analysis in clinical settings.
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Reports of hydronephrosis-induced hypertension in pediatric patients are rare. A 7-year-old girl with hypertension was referred to our hospital with left hydronephrosis caused by ureteropelvic junction obstruction of the lower moiety in a partial duplex system. Because the lower moiety was almost nonfunctional, a laparoscopic heminephrectomy was performed.

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Fear extinction leads to a decrease of originally acquired fear responses after the threat is no longer present. Fear extinction is adaptive and critical for organism's survival, but deficits in extinction may lead to exaggerated fear in animals or post-traumatic stress disorder (PTSD) in humans. Dopamine has recently emerged as essential for fear extinction and PTSD, however the neural circuits serving this dopamine function are only beginning to be investigated, and the dopamine intracellular signaling pathways are unknown.

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The physiological actions of a gut hormone, glucagon-like peptide-1 (GLP-1), in Alzheimer's disease (AD) brain remain poorly understood, although GLP-1 receptor (GLP-1R) expression in this organ has been shown in several experimental studies. Therefore, we explored whether the GLP-1R signaling promotes the clearance of amyloid β (Aβ) (1-42) which is a core pathological hallmark of AD, focusing on the water channel protein aquaporin 4 (AQP4) localized to astrocyte endfeet perivascular membranes in intact brain. First, we confirmed that Glp1r mRNA is predominantly expressed at perivascular site of astrocytes in normal mouse cerebral cortex through in situ hybridization analysis.

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Introducing heterozygous humanized tau to App knock-in mice results in the first mouse model of Alzheimer's disease in which age and amyloid-β pathology interact to initiate neurofibrillary tau tangle pathology, not dependent on mutations in MAPT. Gradual progression from amyloid-β to tau pathology in NLFTau mice opens possibilities for understanding processes precipitating clinical stages of Alzheimer's disease and development of translatable therapies to prevent the onset of tau pathology.

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Background: A substantial portion of gastric cancer (GC) is linked to Epstein-Barr virus (EBV) infection. The characteristics of this viral genome, such as specific viral strains and large structural variations, influence the progression of diseases like nasopharyngeal carcinoma and hematological malignancy. However, the EBV genomes from GC have not been thoroughly characterized.

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  • Olanzapine is an atypical antipsychotic that helps prevent nausea and vomiting, particularly after highly emetogenic chemotherapy (HEC), but it can cause side effects like hyperglycemia and drowsiness.
  • A systematic review and meta-analysis assessed the effectiveness of olanzapine combined with standard triplet antiemetic therapy compared to triplet therapy alone, focusing on outcomes like nausea control and adverse effects.
  • Results showed that adding olanzapine significantly improved nausea and vomiting prevention in both acute and delayed phases with minimal adverse effects, indicating it can be beneficial for patients undergoing HEC.
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Transcatheter aortic valve implantation (TAVI) is a proven treatment for severe aortic stenosis (AS); however, the effects of TAVI on central blood pressure (CBP) and clinical outcomes remain unclear. We assessed CBP indices before and after TAVI and their prognostic value. Seventy-six patients with severe AS who underwent TAVI were retrospectively evaluated, and CBP was estimated noninvasively 1 day before and after TAVI.

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Background And Objective: The aim of this study was to evaluate the basic performance and accuracy as a screening test by comparing SiLIS Allergy 45+1 with View Allergy 39.

Methods: Measurements were performed with reagents and measuring instruments for View Allergy 39 and SiLIS Allergy 45+1 using blood samples of individuals with a previous history of IgE sensitizations. We compared the results between SiLIS Allergy 45+1 with View Allergy 39.

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Purpose: To establish an ultra-high dose-rate (UHDR) radiation system using a synchrotron proton beam accelerator and to compare the effects by irradiation positions on cultured cells and chick embryos.

Methods And Materials: Protons for UHDR were obtained by applying high-frequency power at much higher levels than usual to extract all protons within approximately 50 ms. Subsequently, monitoring with a Faraday cup was performed immediately after synchrotron extraction and the waveform was adjusted accordingly.

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  • This study examines the effectiveness of different sizes of cotton swabs (large vs. fine) for nasal disinfection before nasotracheal intubation (NTI) to reduce bleeding while still sterilizing effectively.
  • Researchers conducted a randomized controlled trial with 62 patients in each cotton swab group, collecting bacterial samples before and after disinfection and after surgery.
  • Results showed no significant difference in bacterial reduction between the large and fine swabs, indicating that both swab sizes were comparably effective for nasal disinfection prior to NTI.
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Predictors of nodal upstaging in clinical N1 nonsmall cell lung cancer.

Jpn J Clin Oncol

November 2024

Department of Thoracic Surgery, Kyoto University, 54, Shogoin-Kawaharacho, Sakyo-ku, Kyoto 606-8507, Japan.

Background: Surgical resection followed by adjuvant chemotherapy is currently the first choice for the treatment of clinical N1 (cN1) non-small cell lung cancer (NSCLC). However, diagnosing cN1 correctly can be difficult, even with current imaging diagnostic technologies. We aimed to analyze the diagnostic accuracy of preoperative nodal status and the predictive factors for nodal upstaging of cN1-NSCLC.

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Aim: We examined the association between dairy intake and all-cause, cancer, and cardiovascular disease mortality in a cohort of the general population followed up for 12 years across Japan.

Methods: We conducted a longitudinal cohort study of 79,715 participants from the Japan Multi-Institutional Collaborative Cohort study (57.2% women, mean age 54.

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Biomechanical tensile test for capsule repair comparing suturing methods including interrupted, continuous, and barbed sutures.

Clin Biomech (Bristol)

December 2024

Department of Orthopaedic Surgery, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan; Department of Rehabilitation Medicine, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan. Electronic address:

Article Synopsis
  • This study investigates the effectiveness of different suturing methods (interrupted vs. continuous) and materials (Vicryl vs. Stratafix) for repairing the capsule in total joint arthroplasty using porcine skin as a substitute for human tissue.! -
  • The results indicate that continuous Vicryl sutures had the highest maximum failure load (465.81 N), while interrupted Vicryl and Stratafix had lower loads (275.52 N and 303.08 N, respectively), highlighting Vicryl's strength advantage.! -
  • The study concludes that while Vicryl is stronger, Stratafix, a barbed continuous suture, presents a viable alternative for capsule repair due to its different mechanical properties.
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  • Research lacks a standardized multi-day antiemetic regimen for chemotherapy, making it difficult to assess efficacy and safety.
  • A comprehensive search revealed no direct comparisons between multi-day and single-day antiemetic regimens, with variations in study quality and treatment protocols hindering robust analysis.
  • Preliminary findings indicate that three-drug combination therapies, particularly using aprepitant, may outperform two-drug regimens; further research is needed to better define antiemetic approaches for multi-day chemotherapy.
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Purpose: Although neuropathological comorbidities, including Alzheimer's disease neuropathological change (AD-NC) and limbic-predominant age-related TAR DNA-binding protein 43encephalopathy neuropathological change (LATE-NC), are associated with medial temporal atrophy in patients with Lewy body disease (LBD), the diagnostic performance of magnetic resonance imaging (MRI)-derived indices remains unclear. This study aimed to investigate the diagnostic performance of MRI-derived indices representing medial temporal atrophy in differentiating between LBD with AD-NC and/or LATE-NC (mixed LBD [mLBD]) and without these comorbidities (pure LBD [pLBD]).

Methods: This study included 24 and 16 patients with pathologically confirmed mLBD and pLBD, respectively.

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Background: Laparoscopic surgery for gastric cancer has become widely used; minimally invasive surgery has become the mainstream of treatment. This randomized controlled trial (RCT) aimed to compare long-term quality of life (QoL) and weight loss rates in patients who underwent single-port laparoscopic gastrectomy (SLG) or multi-port laparoscopic gastrectomy (MLG) for gastric cancer.

Methods: This single-center RCT compared MLG and SLG in patients with clinical stage I gastric cancer, all of which underwent distal gastrectomy between April 2016 and September 2018.

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Association between prenatal mercury exposure and pediatric neurodevelopment: The Japan environment and children's study.

Sci Total Environ

December 2024

The South Kyushu Okinawa Unit Center, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan; Department of Public Health, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan.

Mercury pollution, including from its use during gold mining and refining, remains an important problem worldwide. In particular, methylmercury, a microbial alteration of mercury released into the environment, is a major environmental neurotoxicant. Although there has been growing concern about the health hazards of exposure to low levels of mercury, the effects of prenatal mercury exposure on neurodevelopmental outcomes in children have remained controversial.

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This study evaluated the direct and indirect thermal effects of various surgical energy devices using an ex-vivo model. Two types of three devices were evaluated: ENSEAL™ X1 Curved Jaw Tissue Sealer (X1) and ENSEAL™ G2 Curved Tissue Sealer (G2) as vessel sealing systems (VSSs), and HARMONIC HD1000i Shears (HA) as an ultrasonic activating device (USAD). Each device was activated once under DRY or WET conditions.

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  • The study investigated the feasibility and effectiveness of a modified behavioral activation program aimed at helping individuals who have lost loved ones to cancer, specifically in reducing depressive symptoms.
  • The program included a series of pre-interviews and seven 50-minute sessions, with participants showing high completion rates of 95% for the intervention and 90% for follow-up.
  • Results indicated significant reductions in depression and anxiety symptoms, with large effect sizes measured three months post-intervention, suggesting that the program effectively supports bereaved individuals.
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Objectives: To investigate the use of photon-counting detector CT (PCD-CT) to improve brachial plexus depiction.

Materials And Methods: This retrospective study included patients who underwent neck CT from March to December 2023. To assess the optimal reconstruction condition in PCD-CT, the signal-to-noise ratios (SNRs) on images using various quantitative regular (Qr) kernels and strengths of quantum iterative reconstruction (QIR) were evaluated.

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