Publications by authors named "Astuki Nakano"

This study retrospectively compared outcomes of various allogeneic haematopoietic cell transplantation (allo-HCT) platforms in patients with adult T-cell leukaemia/lymphoma. Platforms included human leukocyte antigen (HLA)-haploidentical-related donors using post-transplant cyclophosphamide (PTCY), HLA-matched related donors (MRD), HLA-matched unrelated donors (MUD) and cord blood transplantation (CBT). Patients who underwent their first allo-HCT between 2016 and 2021 were included.

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Purpose: Pancreatic adenosquamous carcinoma (PASC) is a subtype of pancreatic cancer with a poorer prognosis than pancreatic ductal carcinoma (PDAC). The pathogenesis of this histological subtype has not been fully explained due to its rarity.

Methods: Of the 245 patients who underwent pancreatic resection for pancreatic cancer, six (2.

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Injuries to the retrohepatic segment of the inferior vena cava require complex procedures, as exposure without prior vascular control can lead to uncontrollable and fatal bleeding. To achieve such control, the classic techniques of hepatic vascular exclusion and the implantation of an atriocaval shunt have been described, and more recently, endovascular strategies have been reported. However, there is no consensus in the literature regarding which of these strategies is associated with lower mortality.

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  • A job-exposure matrix was created to analyze sedentary behavior in relation to non-communicable diseases, using data from over 41,000 individuals.
  • The matrix was applied to a large cohort in a case-control study, revealing a connection between higher sedentary time and increased risks of diabetes, heart attacks, and endometrial cancer, while suggesting lower stroke risks.
  • The findings emphasize the need to address sedentary behavior in workplace settings due to its significant health implications.
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Background: Postoperative complications like remnant hepatic vein (HV) outflow block and liver torsion can occur after right hepatectomy. Hepatic falciform ligament fixation is typically used to prevent liver torsion. We report a novel procedure to manage outflow block.

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Background/objectives: Covered self-expandable metallic stents (CSEMS) are commonly used to treat malignant distal biliary obstructions. A 10-mm CSEMS carries the risk of obstructing the pancreatic and cystic duct orifices by adhering to the bile duct; therefore, postoperative pancreatitis and cholecystitis are reported to occur at a certain frequency. We have adopted a new drainage technique for malignant distal biliary obstruction called ''double-slim SEMS stenting" (DSS), where two small-diameter CSEMS are placed side-by-side.

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Background: Tibetan highlanders have adapted to hypoxic environments through genetic mechanisms that avoid hemoglobin concentration increases and prevent polycythemia. Recently, sex differences in hemoglobin dynamics with age have been reported among Tibetan highlanders living in Tsarang. Additionally, concerns have been raised that dietary changes associated with modernization may increase the risk of polycythemia and lifestyle-related diseases among Tibetan highlanders.

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  • Researchers developed a new PET tracer, [C]K-2, that allows for the visualization and measurement of AMPAR density in the brains of living human patients, which is important for understanding neurotransmission in psychiatric disorders.
  • The study involved 149 patients with various psychiatric disorders (like schizophrenia and bipolar disorder) and 70 healthy individuals, revealing correlations between AMPAR density and symptom severity.
  • The findings highlight unique patterns of AMPAR distribution across different psychiatric disorders, suggesting potential new approaches for diagnosing and treating these conditions based on biological mechanisms.
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Background: Patient safety is crucial in high-risk specialties such as orthopedic surgery due to the significant incidence of preventable adverse events. Analyzing extensive databases of orthopedic surgery-related incidents in operating rooms is vital for enhancing medical safety and identifying targeted interventions. This study analyzed orthopedic surgery-related incidents in operating rooms using a nationwide incident reporting database in Japan to identify risk factors associated with severe harm.

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Immunological self-tolerance is established in the thymus by the expression of virtually all self-antigens, including tissue-restricted antigens (TRAs) and cell-type-restricted antigens (CRAs). Despite a wealth of knowledge about the transcriptional regulation of TRA genes, posttranscriptional regulation remains poorly understood. Here, we show that protein arginine methylation plays an essential role in central immune tolerance by maximizing the self-antigen repertoire in medullary thymic epithelial cells (mTECs).

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  • Renal cell carcinoma (RCC) can spread to unusual sites, with a rare case reported of metastasis to the area behind the seminal vesicles in a 44-year-old male patient with clear cell RCC.
  • After identifying the metastases during follow-up post-surgery, the patient underwent a unique treatment combining immune-oncology therapy and tyrosine kinase inhibitors (IO-TKI) that effectively reduced the lesions.
  • The subsequent laparoscopic surgery removed all metastases, which were confirmed as clear cell RCC, and no further disease progression was observed two months after the operation, showcasing this treatment's potential for atypical metastatic cases.
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  • - Metastatic upper tract urothelial carcinoma (mUTUC) has a poor prognosis, but surgical options like lymph node dissection (LND) combined with radical nephroureterectomy (RNU) can potentially cure patients with locoregional lymph nodes.
  • - The introduction of pembrolizumab, an anti-PD-1 antibody, has improved outcomes for mUTUC patients, with some experiencing long-lasting responses without surgery, highlighting the need to better determine who should undergo surgery.
  • - A unique case is presented where a patient with clinical N + UTUC showed a complete pathological response after stopping pembrolizumab due to side effects, suggesting that treatment strategies for N + UTUC may need
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  • Antifouling biocides, including metals like Cu and Zn, prevent organisms from attaching to ship hulls but are toxic to marine life, prompting a study of microparticles (MPs) in Osaka Bay.
  • Seven types of MPs containing various metals were identified, with most being acrylic resins linked to antifouling paints, revealing high concentrations of Cu and Zn in the samples analyzed.
  • The research utilized X-ray fluorescence spectroscopy to accurately measure the metal concentrations in the MPs by establishing calibration curves based on standard paint particles.
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  • Atrial cardiomyopathy (AtCM) is gaining attention for its association with serious cardiovascular issues like atrial tachyarrhythmia and strokes, but little is known about its long-term effects since it's a relatively new concept.
  • A case study of a 78-year-old man revealed he had end-stage AtCM, diagnosed after decades of battling atrial fibrillation and several related complications, including cardiogenic embolism and ineffective heart ablation treatments.
  • Despite ongoing treatment, the patient faced worsening symptoms and complications, emphasizing the importance of monitoring and managing the progression of AtCM.
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  • The study aimed to compare the effectiveness of two techniques—percutaneous transhepatic obliteration with initial afferent vein embolization (PTO-A) and initial efferent vein embolization (PTO-E)—for treating gastric varices (GVs).
  • 26 patients with type 1 or type 2 gastric varices were treated, with positive outcomes seen in both methods; however, PTO-E demonstrated a significantly higher complete eradication rate (100% vs. 33.3%).
  • Patients who underwent PTO-E also experienced a longer median recurrence-free period (75.1 months) compared to those who had PTO-A (8.7 months), although overall survival rates were similar for both groups.
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An 83-year-old man underwent embolization for a type 2 endoleak following endovascular aortic repair for an abdominal aortic aneurysm. The type 2 endoleak originated from the left iliac circumflex artery, which was located very close to the puncture site in the left femoral artery. This proximity made the embolization procedure challenging; however, by employing a combination of a micropuncture introducer set and a triple-coaxial system, embolization with N-butyl-2-cyanoacrylate was successfully achieved.

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Only a limited number of tumour biomarkers are currently available in veterinary medicine, particularly in cats. Cell-free DNA (cfDNA) is an extracellular DNA fragment released upon cell death and is considered a minimally invasive biomarker for the diagnosis and monitoring of various human malignancies. This study aimed to clarify the utility of circulating cfDNA as a liquid biopsy for various feline tumours.

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Sexual selection drives rapid evolution of morphological, physiological, and behavioral traits, especially in males, and it may also drive the rapid evolution of hybrid male sterility. Indeed, the faster male theory of speciation was once viewed as a major cause of Haldane's rule in male-heterogametic XY taxa, but is increasingly being replaced by the genetic conflict hypothesis partly because it cannot explain the faster evolution of hybrid female sterility in female-heterogametic ZW taxa. The theory nonetheless predicts that there should be more genes for hybrid male sterility than for hybrid female sterility even in such taxa, but this remains untested.

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Site-specific radiolabeling is utilized for the development of antibody- or peptide-based radiotheranostic agents. Although tyrosine can be exploited as one of the target residues for site-specific radiolabeling of peptides and proteins, a tyrosine-specific radiolabeling method has not been established. In this study, we newly designed and synthesized a novel bifunctional chelating agent, TBD-DO3A, consisting of a triazabutadiene (TBD) scaffold and metal chelator, 1,4,7,10-tetraazacyclododecane 1,4,7-triacetic acid (DO3A).

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  • Mitochondrial dysfunction in the heart is linked to heart failure (HF), but the impact of structural abnormalities in mitochondria on clinical outcomes hasn't been studied thoroughly.
  • A study involving 91 patients with reduced left ventricular function found that those with disorganized mitochondrial cristae faced worse outcomes, including higher rates of hospitalization for HF.
  • The research indicates that evaluating mitochondrial structure, especially cristae organization, could be crucial in managing heart failure patients, as it correlates with their prognosis and response to treatment.
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