Yoshimasa Maeda

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Fungus-growing termites efficiently decompose plant litter through their symbiotic relationship with basidiomycete fungi of the genus Termitomyces. Here, we investigated phenol-oxidizing enzymes in symbiotic fungi and fungus combs (a substrate used to cultivate symbiotic fungi) from termites belonging to the genera Macrotermes, Odontotermes, and Microtermes(More)
A 66-year-old woman underwent partial splenic embolization (PSE) for hypersplenism with idiopathic portal hypertension (IPH). One week later, contrast-enhanced CT revealed extensive portal vein thrombosis (PVT) and dilated portosystemic shunts. The PVT was not dissolved by the intravenous administration of urokinase. The right portal vein was canulated via(More)
A gene encoding a manganese-dependent peroxidase (MnP) of the oriental mushroom Elfvingia applanata has been cloned into λgt10 and characterized. This gene, Ea.mnp1, consists of a 1, 095 bp open reading frame coding for 364 amino acid residues. Northern blot analysis revealed that transcription of the Ea.mnp1 gene was elevated by an increase in Mn2+ to 200(More)
Termitomyces-related symbiotic basidiomycetes in the nests of fungus-growing termites (Macrotermitinae) of several genera in Thailand were cultivated and analyzed phylogenetically based on the DNA sequence of nuclear ribosomal RNA genes. The relationships of the symbiotic fungi with host termites and their locality were apparently complex, supporting(More)
White rot fungi produce extracellular phenoloxidases and can decompose lignin efficiently. Elfvingia applanata has been successfully applied for the bioconversion of bisphenol A, suggesting the usefulness of white rot fungi for bioremediation. In order to attain real bioremediation, the recycling of ecomolecules in the ecosystem is important. The(More)
A 57-year-old Japanese man was admitted to our hospital with diarrhea, weight loss and malabsorption. Due to a high serum IgA level, we suspected α-heavy chain disease (α-HCD). However, no monoclonal IgA was detected on protein electrophoresis or immunofixation. Immunohistochemical staining of intestinal biopsy specimens showed proliferation of(More)
BACKGROUND Both double-balloon enteroscopy (DBE) and video capsule endoscopy (VCE) have similar diagnostic yields for patients with overt obscure gastrointestinal bleeding (OGIB). However, the choice of initial modality is still controversial. The aim of this study was to show the clinical outcome of the strategy of initial VCE, followed by DBE. METHODS(More)
Gastrectomy (GX) is thought to result in osteomalacia due to deficiencies in Vitamin D and Ca. Using a GX rat model, we showed that GX induced high turnover of bone with hyperosteoidosis, prominent increase of mineralization and increased mRNA expression of both osteoclast-derived tartrate-resistant acid phosphatase 5b and osteocalcin. The increased 1,(More)
The aim of the present study was to predict sustained virological response (SVR) to telaprevir with pegylated interferon (PEG-IFN) and ribavirin using viral response within 2 weeks after therapy initiation. Thirty-six patients with genotype 1 hepatitis C virus (HCV) and high viral load were treated by telaprevir-based triple therapy. SVR was achieved in 72%(More)
The present study aimed to elucidate the association between post-vascular-phase (Kupffer-phase) images from contrast-enhanced ultrasonography (CEUS) with perfluorobutane microbubbles and metastatic recurrences after the resection of hepatocellular carcinoma (HCC). The study examined 73 patients with solitary HCC ≤5 cm in diameter who underwent CEUS before(More)