20,375 results match your criteria: "" Kumamoto University[Affiliation]"

Kiken-yochi Training (KYT) has been introduced in many hospitals as medical safety education in many departments, with the exception of radiology. KYT is also not used in the contents of medical safety lectures in the education of students for radiological technologists. One of the reasons for this is that the images for KYT (KYT images) cannot be created at each hospital or easily obtained on the website.

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[Methods of Coronary Anastomosis].

Kyobu Geka

September 2024

Department of Cardiovascular Surgery, Kumamoto University, Kumamoto, Japan.

In recent years, percutaneous coronary intervention (PCI) has been performed for left main trunk lesions and severe three-vessel lesions, which were previously considered indications for coronary artery bypass grafting( CABG). As a result, more patients with poorer general conditions or vascular characteristics are being considered for CABG. In the current era of PCI, surgeons are required to achieve high bypass graft patency and to perform anastomosis according to the coronary artery lesion and the characteristics of the bypass graft.

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Fibrillin-1, an extracellular matrix (ECM) protein encoded by the FBN1 gene, serves as a microfibril scaffold crucial for elastic fiber formation and homeostasis in pliable tissue such as the skin. Aside from causing Marfan syndrome, some mutations in FBN1 result in scleroderma, marked by hardened and thicker skin which limits joint mobility. Here, we describe a tight skin phenotype in the Fbn1 mice carrying a corresponding variant of FBN1 in the hybrid1 domain that was identified in a patient with familial aortic dissection.

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Severity and prognosis of COVID-19 complicated by autoimmune pulmonary alveolar proteinosis.

Respir Investig

January 2025

Second Division, Department of Internal Medicine, Hamamatsu University School of Medicine, 1-2-1 Handayama, Chuo-ku, Hamamatsu City, Shizuoka, 431-2111, Japan.

Background: The prognosis of patients with coronavirus disease 2019 (COVID-19) was poor although its survival rate has been improved after the occurrence of the Omicron strain. Autoimmune pulmonary alveolar proteinosis (APAP), a lung disease caused by macrophage dysfunction induced by anti-granulocyte-macrophage colony-stimulating factor (GM-CSF)-neutralizing autoantibodies, is characterized by the deposition of proteinaceous material in the alveolar spaces. The clinical course of COVID-19 in patients with APAP remains unclear and this study aimed to clarify it.

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Clinical benefits of partial splenic embolization for cancer patients.

Hepatol Res

November 2024

Department of Gastroenterological Surgery, Graduate School of Life Sciences, Kumamoto University, Kumamoto, Japan.

Partial splenic embolization (PSE) has developed as an alternative to surgical splenectomy, mainly to improve hypersplenism and esophagogastric varices in cirrhotic patients. We proposed the novel concept that splenic infarction volume, rather than the splenic infarction ratio, is essential for patients receiving PSE. A splenic infarction volume between 388 and 540 mL is suitable for a sufficient increase in platelet count and less severe PSE-related complications.

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Despite the widespread adoption of valve-in-valve transcatheter aortic valve replacement (VIV-TAVR) for patients with failed aortic bioprosthesis, the effectiveness of this treatment for Japanese patients frequently associated with small aortic annuli remains unclear. From December-2011 to October-2022, 41 consecutive patients undergoing VIV-TAVR were enrolled in this study. The endpoints were technical success, device success, early safety, and two-year mortality according to implanted surgical valve size (small valves: 19-mm and 21-mm, n = 23; large valves: 23-mm and 25-mm, n = 18).

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Purpose: The purpose of this study is to estimate the extent to which the implementation of deep learning reconstruction (DLR) may reduce the risk of radiation-induced cancer from CT examinations, utilizing real-world clinical data.

Methods: We retrospectively analyzed scan data of adult patients who underwent body CT during two periods relative to DLR implementation at our facility: a 12-month pre-DLR phase (n = 5553) using hybrid iterative reconstruction and a 12-month post-DLR phase (n = 5494) with routine CT reconstruction transitioning to DLR. To ensure comparability between two groups, we employed propensity score matching 1:1 based on age, sex, and body mass index.

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Background: An HIV-1 vaccine is long overdue. Although vaccine research focuses on the induction of broadly neutralising antibodies, challenging infections such as HIV-1 could require parallel induction of protective T cells. It is important to recognise that not all T cells contribute to protection equally.

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QXAFS study of CO and H adsorption on Pt in [PtAu(PPh)]-H[PMoO] solid.

Nanoscale

November 2024

Department of Chemistry, Graduate School of Science, Tokyo Metropolitan University, 1-1 Minami-osawa, Hachioji-shi, Tokyo 192-0397, Japan.

The adsorption behaviors of H and CO molecules in crown-motif [PtAu(PPh)]-H[PMoO] (PtAu8-PMo12) solids were investigated by quick-scan X-ray absorption fine structure (QXAFS) measurements with a time resolution of 0.1 s. The electronic state of Pt in PtAu8-PMo12 was drastically changed by the adsorption of H and CO molecules because of the formation of Pt-H/Pt-CO interactions.

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Hypertension increases the risk of cerebrovascular disease and death. In addition to aerobic exercise, which is currently recommended for its antihypertensive effects, recent studies have suggested that dynamic and isometric resistance exercises also have antihypertensive effects. However, the magnitude of the antihypertensive effect of such resistance exercises is not well known.

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Continuing progress in radioimmunotherapy for hematologic malignancies.

Blood Rev

January 2025

Division of Hematopoiesis, Joint Research Center for Human Retrovirus Infection, Kumamoto University, 2-2-1 Honjo, Chuo-ku, Kumamoto 860-0811, Japan. Electronic address:

Radioimmunotherapy (RIT) involves combining a cytotoxic radionuclide with an antibody (Ab) targeting a tumor antigen. Compared with conventional therapies, RIT improves the therapeutic efficacy of Ab and ameliorates toxicity. This comprehensive review describes the current advancements and future prospects in RIT for treating hematologic malignancies based on recent investigations.

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Analgesic effect of Keishinieppiittokajutsubu on low barometric pressure-induced pain response in arthritic model rats.

J Pharmacol Sci

December 2024

Department of Chemico-Pharmacological Sciences, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, 862-0973, Japan. Electronic address:

Rheumatoid arthritis (RA) is a disease that causes inflammation of joints, resulting in pain and swelling. Reduced barometric pressure induces painful symptom of RA, but there is no appropriate animal model and pharmacological evaluation. Keishinieppiittokajutsubu (KNEIJB), a Kampo medicine used to treat RA; however, its mechanism of action is not clear.

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Ribosome biogenesis is vital for sustaining stem cell properties, yet its regulatory mechanisms are obscure. Herein, we show unique properties of zebrafish mutants in which spermatogonial stem cells (SSCs) do not differentiate or upregulate rRNAs. Meioc colocalized with Piwil1 in perinuclear germ granules, but Meioc depletion resulted in Piwil1 accumulation in nucleoli.

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Lattice Matching Anchoring of Hole-Selective Molecule on Halide Perovskite Surfaces for n-i-p Solar Cells.

Adv Mater

November 2024

International Institute for Carbon-Neutral Energy Research (WPI-I2CNER), Kyushu University, 744 Motooka, Nishi, Fukuoka, 819-0395, Japan.

Exploiting the self-assembled molecules (SAMs) as hole-selective contacts has been an effective strategy to improve the efficiency and long-term stability of perovskite solar cells (PSCs). Currently, research works are focusing on constructing SAMs on metal oxide surfaces in p-i-n PSCs, but realizing a stable and dense SAM contact on halide perovskite surfaces in n-i-p PSCs is still challenging. In this work, the hole-selective molecule for n-i-p device is developed featuring a terephthalic methylammonium core structure that possesses double-site anchoring ability and a matching diameter (6.

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Article Synopsis
  • The Japan Society for the Study of Obesity advises aiming for a 3% weight loss over 3-6 months, but the impact of rapid weight loss on body composition is not fully understood.
  • A study focused on obese individuals used a combination of a low-carb diet, exercise, and medication to achieve a 3-5% weight loss, resulting in significant reductions in visceral fat and improvements in various health markers.
  • The results showed that moderate weight loss can effectively reduce harmful fat while preserving lean muscle, leading to better health outcomes like improved blood pressure and glucose levels, although some measures of insulin resistance didn't show significant changes.
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Nurr1 (NR4A2) is a member of nuclear receptor superfamily that regulates gene transcription in midbrain dopaminergic neurons and also inhibits nuclear factor-κB-mediated inflammatory responses in brain microglial cells. To date, various compounds have been reported to stimulate transcriptional activity of Nurr1 on neuronal genes, but their anti-inflammatory actions are poorly characterized. The present study examined the effects of three kinds of Nurr1 ligands, amodiaquine, 1,1-bis(3'-indolyl)-1-(p-chlorophenyl)-methane (C-DIM12) and 5-chloronaphthalen-1-amine (5-CNA), on inflammatory responses of microglial BV-2 cells.

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Daptomycin, an anti-methicillin-resistant Staphylococcus aureus drug, causes exposure-dependent muscle toxicity and eosinophilic pneumonia. Although the area under the concentration-time curve (AUC)-guided dosing is crucial, an optimal blood sampling strategy is lacking. This study aimed to identify an optimal limited sampling strategy using Bayesian forecasting to rapidly achieve the target AUC.

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Background: Kidney transplantation is an effective treatment for patients with kidney failure. Despite the advances in technology, a certain number of patients still deteriorate due to improper management. The purpose of this study was to identify the promoting and inhibitory factors that influence recipients' self-management behaviors after a kidney transplant.

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The External Globus Pallidus as the Hub of the Auditory Cortico-Basal Ganglia Loop.

eNeuro

November 2024

Department of Sensory and Cognitive Physiology, Faculty of Life Sciences, Kumamoto University, Kumamoto 860-8556, Japan.

Article Synopsis
  • The cortico-basal ganglia loop has been traditionally seen as three separate networks: motor, limbic, and associative, but this view doesn’t fully capture its complexity, especially in sensory processing like hearing.
  • Recent research demonstrates an auditory-specific loop within this system using transgenic mice, identifying the caudal external globus pallidus (GPe) as a key output node.
  • GABAergic neurons in the caudal GPe are crucial as they connect to various brain regions, suggesting these circuits could be important for triggering defensive responses to sounds.
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Background: Esophageal cancer is a major cause of cancer mortality worldwide. Endoscopic resection (ER) is a curative treatment for esophageal squamous cell carcinoma (ESCC). Predicting risk of metastasis is crucial for post-ER management.

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Right Posterior Segment Graft in Adult Living-Donor Liver Transplantation: A Report of 17 Years of Experience at a Single Institution.

Exp Clin Transplant

October 2024

From the Department of Transplantation and Pediatric Surgery, Kumamoto University, Kumamoto, Japan and the Department of Hepatobiliary Pancreatic and Transplantation/Pediatric Surgery, Kyoto University, Kyoto, Japan.

Objectives: The right posterior segment graft can be selected in cases where neither the right nor left lobe graft satisfies the selection criteria for adult living donor liver transplant. However, vascular and biliary anatomy may cause technical difficulties in procurement of posterior segments in donors of living donor liver transplant and may require specific attention in vascular and biliary reconstruction in the recipient. In this study, we examined the feasibility of right posterior segment grafts in adult living donor liver transplants through donor safety and recipient outcomes and clarified the anatomic points of the surgical technique.

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In this study, we investigated the sleep-wake rhythm of nursery school children with the aim of supporting their health and mental/physical development. We analyzed 4881 children from infancy to 6 years of age, using 2 week sleep tables recorded by their guardians. The tables contained night bedtimes, wake times, nighttime/daytime sleep duration, and the differences in these between weekdays and weekends.

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It is widely accepted that the γ relaxation of poly(methyl methacrylate) (PMMA) arises from the hindered rotational motion of the side chain around the C-C bond, which links to the main chain. However, the physical model to explain this process has been unknown. The hybrid density functional theory calculation showed that the PMMA intramolecular hindered rotation has an activation energy of 6.

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