Publications by authors named "Hitoshi Abo"

Purpose: A membranous structure (MS) may be seen on ultrasound at a site of vascular access (VA) stenosis in patients on hemodialysis. It can also be encountered during percutaneous transluminal angioplasty (PTA) and be impassable from one side but easily passed from the other. This study aimed to examine the characteristics of MS cases and how to treat them.

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This study investigates the genomic characteristics of canine and feline cefotaxime (CTX, a third-generation cephalosporin)-resistant Escherichia coli using the JVARM, Japanese Veterinary Antimicrobial Resistance Monitoring System, a nationwide monitoring. In this study, whole-genome sequencing (WGS) was performed on 51 canine and 45 feline CTX-resistant E. coli isolates, with certain isolates subjected to pulsed-field gel electrophoresis with S1 nuclease for plasmid-chromosome separation.

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We investigated the prevalence of livestock-associated methicillin-resistant (LA-MRSA) in pig slaughterhouses from 2018 to 2022 in Japan and the isolates were examined for antimicrobial susceptibility and genetic characteristics by whole-genome analysis. Although the positive LA-MRSA rates on farms (29.6%) and samples (9.

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We conducted whole-genome sequencing to investigate the serotypes, the presence of virulence and antimicrobial resistance genes, and the genetic relationships among isolates of Actinobacillus. pleuropneumoniae derived from diseased pigs. Serotype 2 (71.

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Purpose: Mediastinal masses have various histopathological and radiological findings. Although lymphoma is the most common type of tumor, thymic epithelial and neurogenic tumors are common in adults and children, respectively, but several other types are difficult to distinguish. No previous review has simply and clearly shown how to differentiate mediastinal masses.

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In this study, we report two cases of transcatheter arterial embolization for intramammary hemorrhage caused by seat belt injuries. All patients were female drivers involved in traffic accidents. In each case, we accessed the hemorrhage through the left brachial artery and embolized the perforating branch of the left internal mammary artery with N-butyl-2-cyanoacrylate, obtaining effective hemostasis.

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Methicillin-resistant Staphylococcus aureus (MRSA) is the leading cause of infection in hospitalized patients and can be prevalent in humans and various animal species. In European countries, MRSA isolates belonging to clonal complex 398 have been detected at high rates in pigs. However, the prevalence of MRSA in pigs and farm environments in Japan remains unclear.

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We herein report the cases of three patients with chest symptoms or fever and diffuse wall thickening of the trachea and main bronchi on chest CT. They were diagnosed with various causes of inflammations of the trachea and main bronchi using bronchial or tracheal biopsy specimens and flexible bronchoscopy.

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Bochdalek hernia with liver herniation is rare and mimics a pulmonary mass. This case was hospitalized for masses found in the lower field of the right lung on a chest radiograph. The patient was diagnosed with Bochdalek hernia with liver herniation with three-dimensional images created from thoracoabdominal-enhanced computed tomography.

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We analyzed the correlation between minimum inhibitory concentrations (MICs) of antimicrobials used in humans and those used in animals to enable comparison of antimicrobial susceptibility between isolated from humans and those from animals. We compared the following pairs of MIC data: piperacillin (PIPC) to ampicillin (ABPC), amikacin (AMK) to kanamycin (KM), minocycline (MINO) to oxytetracycline (OTC), and levofloxacin (LVFX) to enrofloxacin (ERFX) using 103 isolates of from healthy livestock (cattle, pigs, broiler chickens, and layer chickens). Kappa analysis of the agreement for resistance and susceptibility between PIPC and ABPC, AMK and KM, MINO and OTC, and LVFX and ERFX showed almost perfect (κ = 0.

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The off-label use of third-generation cephalosporins (3GCs) during vaccination or vaccination of newly hatched chicks has been a common practice worldwide. CMY-2-producing strains have been disseminated in broiler chicken production. The objective of this study was to determine the epidemiological linkage of -positive plasmids among broilers both within and outside Japan, because the grandparent stock and parent stock were imported into Japan.

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To enable future comparison of the antimicrobial susceptibility data between bacteria obtained from animals and humans, it is necessary to compare the relationships between minimum inhibitory concentrations (MICs) of veterinary and human medicine. We evaluated the relationship between the MIC of ceftiofur (CTF) and the MICs of other third-generation cephalosporins (TGCs): cefotaxime (CTX), cefpodoxime (CPDX), and ceftazidime (CAZ), determined by the broth microdilution method using 118 cefazolin-resistant Escherichia coli isolates from food-producing animals. Using the Clinical and Laboratory Standards Institute criteria, very major classification errors were observed only in CAZ (17.

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Article Synopsis
  • Researchers examined over 9,300 strains of Escherichia coli from healthy animals as part of the Japanese Veterinary Antimicrobial Resistance Monitoring (JVARM) program.
  • The mcr-1 gene was found in 39 strains, with sources including cattle, swine, and broilers, but mcr-2 was not detected at all.
  • A further investigation using a sequence homology search against the GenEpid-J database also confirmed the absence of mcr-2.
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Fluoroquinolone-resistant Campylobacter jejuni isolates from broilers in Japan were characterized using multilocus sequence typing and pulsed-field gel electrophoresis (PFGE) in order to elucidate the genetic relationship between these strains. Forty-three of the isolates were classified into 20 sequence types and were clustered into 21 PFGE types with 70% similarity. The most dominant clonal complex (CC) was CC-21 (41.

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Article Synopsis
  • High levels of broad-spectrum cephalosporin (BSC) resistance in E. coli from healthy broilers in Japan prompted a voluntary withdrawal of ceftiofur (CTF) use in hatcheries starting in March 2012.
  • A study analyzing 693 E. coli isolates from 2010 to 2013 showed a significant decrease in BSC-resistant isolates, dropping from 16.4% in 2010 to 4.6% in 2013.
  • The reduction in resistance indicates that limiting CTF use at hatcheries effectively controls BSC resistance in E. coli among broilers.
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This report presents a case of tuberculous lymphadenitis that was difficult to diagnose using polymerase chain reaction analysis. An 80-year-old Japanese female was hospitalized due to swollen cervical lymph nodes. Her lymph node tests revealed paradoxical polymerase chain reaction results.

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Article Synopsis
  • - We studied the occurrence of plasmid-mediated quinolone resistance (PMQR) genes in avian pathogenic E. coli (APEC) strains in Japan, testing 117 samples from 2004 to 2007 for specific genes using polymerase chain reaction.
  • - The tests revealed that several PMQR genes were absent in the APEC strains, but one strain was found to produce the AAC(6')-Ib-cr enzyme, indicating some level of resistance.
  • - Additionally, we characterized this resistant isolate as belonging to phylogenetic group A, sequence type 167, and noted that it's the first report of the aac(6')-Ib-cr gene found in bacteria from food-producing animals in Japan. *
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Aims. To elucidate characteristics of IgG4-related disease involving the peripheral nervous system. Methods.

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A 74-year-old woman was referred to our hospital for goiter and persistent thyrotoxicosis. She had no signs of ophthalmopathy. She was not taking thyroid hormone.

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Purpose: To retrospectively evaluate computed tomographic (CT) findings of immunoglobulin G4 (IgG4)-related disease involving the vascular system.

Materials And Methods: This study was approved by the institutional review board, and all patients included had consented to the use of their medical records for the purpose of research. The study consisted of 17 patients (16 men and one woman; age range, 54-86 years).

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Background. The control of severe bronchial asthma, such as corticosteroid-resistant asthma, is difficult. It is also possible that immunosuppressive agents would be effective for bronchial asthma.

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Rubella is a mild disease characterized by low-grade fever, and a morbilliform rash, but causes congenital defects in neonates born from mothers who suffered from rubella during the pregnancy. After many passages of wild-type rubella virus strains in various types of cultured cells, five live attenuated rubella vaccines were developed in Japan. An inability to elicit anti-rubella virus antibodies in experimentally infected animals was used as an in vivo marker phenotype of Japanese rubella vaccines.

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Background: To determine whether rubella virus is involved in the pathogenesis of Fuchs heterochromic iridocyclitis (FHI).

Methods: Fourteen patients (14 eyes) diagnosed with FHI based on characteristic ocular manifestations and eight control subjects were studied. Aqueous humor (AH) samples from 14 FHI patients and one vitreous sample from a FHI patient were analyzed for intraocular antibody production against rubella virus by calculation of the Goldmann-Witmer coefficient (GWC).

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