15,378 results match your criteria: "Nippon Medical school[Affiliation]"

Objective: This study aimed to clarify the molecular mechanism of remnant pancreatic cancer (PC) development after primary PC resection.

Summary Background Data: Molecular mechanisms of the development of remnant PCs following primary PC resection are largely unknown.

Methods: Forty-three patients undergoing remnant PC resection after primary PC resection between 2001 and 2017 at 26 institutes were retrospectively analyzed.

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Background: Nivolumab monotherapy is the standard second-line treatment for advanced esophageal squamous cell carcinoma (ESCC) after failure of platinum-based chemotherapy without anti-PD-1 antibody. Fixed dosing with 240 mg every 2 weeks was approved initially, followed by fixed dosing with 480 mg every 4 weeks based on pharmacokinetics data. However, information on the comparative efficacy and safety of the two doses remains limited.

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Unlabelled: We report a case of a 63-year-old woman diagnosed with vascular Ehlers-Danlos syndrome (vEDS) who survived two prophylactic surgeries for the dilatation of a thoracoabdominal aortic aneurysm. She initially developed acute type B aortic dissection at the age of 44 years. Five years later, her dissected descending aorta was enlarged to 54 mm; thus, the descending aorta was replaced as the first surgery.

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Lipid-orchestrated paracrine circuit coordinates mast cell maturation and anaphylaxis through functional interaction with fibroblasts.

Immunity

August 2024

Laboratory of Microenvironmental and Metabolic Health Sciences, Center for Disease Biology and Integrative Medicine, The University of Tokyo, Tokyo 113-8655, Japan; Lipid Metabolism Project, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan; AMED-CREST, Japan Agency for Medical Research and Development, Tokyo 100-0004, Japan. Electronic address:

Interaction of mast cells (MCs) with fibroblasts is essential for MC maturation within tissue microenvironments, although the underlying mechanism is incompletely understood. Through a phenotypic screening of >30 mouse lines deficient in lipid-related genes, we found that deletion of the lysophosphatidic acid (LPA) receptor LPA, like that of the phospholipase PLA2G3, the prostaglandin D (PGD) synthase L-PGDS, or the PGD receptor DP1, impairs MC maturation and thereby anaphylaxis. Mechanistically, MC-secreted PLA2G3 acts on extracellular vesicles (EVs) to supply lysophospholipids, which are converted by fibroblast-derived autotaxin (ATX) to LPA.

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Familial episodic pain syndrome (FEPS) is an early childhood onset disorder of severe episodic limb pain caused mainly by pathogenic variants of , , and , which encode three voltage-gated sodium channels (VGSCs) expressed as key determinants of nociceptor excitability in primary sensory neurons. There may still be many undiagnosed patients with FEPS. A better understanding of the associated pathogenesis, epidemiology, and clinical characteristics is needed to provide appropriate diagnosis and care.

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Pleuroparenchymal fibroelastosis (PPFE) is characterized by fibrosis involving the pleura and subpleural lung parenchyma, predominantly in the upper lobes. As PPFE appears to occur in patients with heterogeneous etiologies, the disease course is thus also heterogenous, with some patients showing rapid progression while others have slow progression. Therefore, it is very difficult to predict prognosis with PPFE.

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Anastomosis of the prosthetic graft to the double-barreled aorta with intimal flap fenestration is a useful technique in surgery for chronic aortic dissection. Conversely, anastomosis to the false lumen's outer wall is prone to complications such as pseudoaneurysms, but little is known about the technique of reinforcing the double-barreled aorta. In this report, we describe a surgical case of chronic aortic dissection in which an H-shaped prosthetic graft was sutured to both aortic lumens, including the intimal flap, to prevent complications at the anastomosis site.

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Article Synopsis
  • * A case series of four CHI patients highlighted the application of new international guidelines and the use of updated treatment strategies, including genetic testing and continuous glucose monitoring.
  • * The study emphasizes the importance of personalized treatment approaches, particularly in managing feeding issues, and supports the need for more evidence to develop better treatment options for severe CHI cases.
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Article Synopsis
  • The study aimed to evaluate the effectiveness and tolerability of direct-acting antiviral (DAA) treatments for hepatitis C virus (HCV) across different genotypes (GTs) in a global, real-world context, focusing particularly on GT3 and GT6.
  • Researchers analyzed data from 15,849 chronic hepatitis C patients across Asia, North America, and Europe over a seven-year period, noting demographic factors such as age, sex, and prior treatment history.
  • Results showed a high sustained virological response (SVR12) rate of 96.9% overall, with variances by genotype, highlighting that independent factors like advanced age, cirrhosis, and previous treatment failures affected treatment outcomes, while being
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Background: Effective bystander cardiopulmonary resuscitation (CPR) improves outcomes in out-of-hospital cardiac arrest (OHCA) patients. However, the effect of CPR training on the rate of return of spontaneous circulation (ROSC) among laypersons has yet to be thoroughly evaluated.

Methods: This prospective, multicenter observational study was conducted across 42 centers in Japan.

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Article Synopsis
  • - Libman-Sacks endocarditis is a significant cause of embolic strokes in patients with systemic lupus erythematosus, though the exact reasons for stroke occurrence in these cases are not well understood.
  • - Two cases are highlighted where emboli were successfully retrieved from patients with Libman-Sacks endocarditis through a procedure called mechanical thrombectomy.
  • - The analysis of the retrieved emboli revealed unique eosinophilic structures and immunoglobulin deposits, indicating that immune processes play a role in embolus formation, thus aiding in target treatment strategies.
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We determined the associations of follow-up blood pressure (BP) after stroke as a time-dependent covariate with the risk of subsequent ischemic stroke, as well as those of BP levels with the difference in the impact of long-term clopidogrel or aspirin monotherapy versus additional cilostazol medication on secondary stroke prevention. In a sub-analysis of a randomized controlled trial (CSPS.com), patients between 8 and 180 days after stroke onset were randomly assigned to receive aspirin or clopidogrel alone, or a combination of cilostazol with aspirin or clopidogrel.

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Symptoms of catatonia include silence, motionlessness, and postural retention. Although it is important to detect and treat catatonia early, before it becomes severe, postoperative cases have inherent risks that hinder diagnosis and treatment. A 60-year-old man with schizophrenia underwent endoscopic/thoracoscopic esophagectomy and was extubated in the operating room.

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Immune check point inhibitors (ICIs) have durable antitumor effects. However, autoimmune toxicities, termed immune-related adverse events, occur in some patients. We report a case of severe immune aplastic anemia (AA) in a patient with non-small cell lung cancer who was receiving atezolizumab with bevacizumab/carboplatin/paclitaxel.

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Background: Superior/middle cluneal nerve entrapment (CN-E) is an elicitor of low back pain (LBP). The painDETECT questionnaire is used to characterize CN-E symptoms.

Methods: Nineteen consecutive patients with LBP caused by CN-E (superior CN-E = 7; middle CN-E = 12) participated in a Japanese language painDETECT questionnaire survey before surgery.

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Article Synopsis
  • A study analyzed the effectiveness of postoperative vasodilator therapy for patients with non-occlusive mesenteric ischemia (NOMI) using data from a large Japanese inpatient database between 2010 and 2018.
  • The research involved comparing outcomes between patients who received vasodilators and those who did not, focusing on in-hospital mortality and additional surgeries.
  • Results showed no significant differences in mortality rates or the need for further surgery between the two groups, indicating vasodilator therapy may not improve outcomes for NOMI patients after surgery.
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Background: Antithrombotic therapy (AT) should generally be avoided within 24 hours after recombinant tissue-plasminogen activator (rt-PA) treatment but should be considered in patients with large-artery atherosclerosis (LAA) who undergo concomitant emergent endovascular treatment (EVT). The aim of the present study was to assess the safety of AT within 24 hours after rt-PA treatment in patients with hyperacute ischemic stroke due to LAA who received concomitant EVT.

Methods: From January 2013 through July 2019, consecutive patients with acute ischemic cerebrovascular disease due to LAA who were admitted within 6 hours from symptom onset were recruited.

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Article Synopsis
  • - Basal cell carcinoma (BCC) is the most common skin cancer, typically found on sun-exposed areas like the face and scalp, requiring careful surgical removal.
  • - A study of 230 Japanese BCC patients from 2015 to 2023 analyzed outcomes based on different surgical margins (2mm, 3mm, or 5mm), focusing on recurrence rates and histopathological margins.
  • - Results showed a very low recurrence rate (0.5%) and indicated that narrow histopathological margins (even under 1,000 μm) do not significantly affect recurrence, suggesting that narrower margins can be safely used in surgeries for BCC.
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Background: The standard treatment for Kawasaki disease is immunoglobulin therapy, but the high frequency of coronary sequelae in immunoglobulin-refractory cases indicates a need for further improvement in treatment.

Methods: Kawasaki disease-like vasculitis was induced in 5-week-old DBA/2 mice by intraperitoneal administration of 0.5 mg Candida albicans water-soluble fraction (CAWS) daily for 5 days followed by daily administration of candesartan, an angiotensin receptor blocker.

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Background: Although occlusion of the right coronary artery (RCA) is common in the remote stages of Kawasaki disease, revascularization of the RCA is challenging in children and is usually managed by observation without intervention.

Methods: Using adenosine-stress N-ammonia myocardial perfusion positron emission tomography, we evaluated coronary circulation in 14 patients (12 males) with RCA occlusion to identify ischemia (myocardial flow ratio < 2.0) in the RCA region and examined hemodynamics, cardiac function, and coronary aneurysm diameter.

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Background: Foreign body airway obstruction (FBAO) is a life-threatening emergency. Abdominal thrusts are recommended as first aid, but the success rate for this technique is unclear. Using information from a large database of emergency medical services (EMS) data in the United States, we evaluated the success rate of abdominal thrusts and identified patient characteristics that were associated with the success of the technique.

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Background: Although immunohistochemical techniques and proteomic analysis are widely used for typing diagnosis of amyloidosis, the diagnostic utility of immunohistochemical evaluation is not well understood.

Methods: We used immunohistochemical techniques to characterize staining patterns of in-house rabbit polyclonal anti-κ, anti-λ, anti-transthyretin antibodies, and commercial anti-amyloid A and anti-β-microglobulin antibodies in 40 autopsy cases.

Results: In thirty cases (75%), the subtype was determined by using the criterion that amyloid is strongly and diffusely positive for one antibody while negative for other antibodies.

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This review examines associations of nutrients and dietary preferences with recurrent pregnancy loss (RPL), miscarriage, and infertility. Research articles, reviews, and meta-analyses of RPL and infertility that focused on nutrition, meals, and lifestyle were reviewed, and associations of nutrients and dietary preferences with pregnancy are discussed in relation to recent research findings. Studies related to RPL were given the highest priority, followed by those dealing with miscarriage and infertility.

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Mortality risk in patients with anti-MDA5 antibody-positive dermatomyositis: A risk assessment.

Semin Arthritis Rheum

December 2024

Department of Hygiene and Public Health, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo 113-8602, Japan. Electronic address:

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