Publications by authors named "N Matsuura"

Two new benzene-containing polyketides, cryptoic acids A (1) and B (2), along with a new acylated diketopiperazine designated cyclocryptamide (3), were isolated from the culture extract of Cryptosporangium sp. YDKA-T02. The absolute configuration of amino acid components in 3 was determined by Marfey's method.

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Upper gastrointestinal stenosis, which can be congenital or acquired, can lead to dysphagia. The association between trisomy 17p syndrome, a rare chromosomal abnormality, and upper gastrointestinal stenosis is unclear. A 20-year-old man diagnosed with trisomy 17p syndrome was referred to our department due to recurrent vomiting.

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A 36-year-old woman referred to our hospital for treatment of a mediastinal tumor. Contrast computed tomography (CT) scan was revealed a 31×21×25 mm mass in the anterior mediastinum, with low contrast, clear border, and a tendency to increase. On magnetic resonance imaging( MRI) examination, the anterior mediastinal tumor showed homogeneous high signal intensity on T1-weighted images and a combination of high and low signal intensities on T2-weighted images.

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Aim: To compare the incidence of end-stage renal disease (ESRD) between slowly progressive type 1 diabetes and acute-onset type 1 diabetes.

Methods: This cohort study enrolled all 521 patients with childhood-onset type 1 diabetes with the year of onset from 1959 to 1996 in Hokkaido Prefecture, Japan. We calculated the ESRD incidence rate per 100,000 person-years by sex, onset year, onset age, and type 1 diabetes subtype (slowly progressive or acute-onset).

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Article Synopsis
  • Live swine are not ideal for training to manage intraoperative bleeding during endoscopic submucosal dissection (ESD) due to their coagulation issues.
  • The study aimed to determine an effective heparin dosage for a bleeding model and to see how it affects bleeding during ESD procedures.
  • Results showed that high doses of heparin led to significantly more intraoperative bleeding and hematomas in the heparinized model compared to a control group.
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