Y. Nagashima

Publications165
h-index33
Citations3,490
Highly Influential Citations167
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Application of antioxidative Maillard reaction products from histidine and glucose to sardine products
Maillard reaction products (MRP) were prepared by refluxing the mixture of L-histidine and D-glucose (1:3 molar ratio) in 0.1M phosphate buffer (pH 5, 7, and 9) for up to 24h. It was found that… Expand
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Isolation and molecular cloning of novel peptide toxins from the sea anemone Antheopsis maculata.
Three peptide toxins (Am I-III) with crab toxicity were isolated from the sea anemone Anthopleura maculata by gel filtration and reverse-phase HPLC. Am I was weakly lethal to crabs (LD50 830… Expand
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Variability in toxicity of the dinoflagellate Alexandrium tamarense in response to different nitrogen sources and concentrations.
Nitrogen (N) supply in pulses was simulated by exposing Alexandrium tamarense which was acclimatized at low N concentration (6 microM-N) to sudden increase in concentrations of nitrate, ammonium and… Expand
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Novel peptide toxins from acrorhagi, aggressive organs of the sea anemone Actinia equina.
Two peptide toxins, acrorhagin I (50 residues) and II (44 residues), were isolated from special aggressive organs (acrorhagi) of the sea anemone Actinia equina by gel filtration on Sephadex G-50 and… Expand
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Molecular cloning of tropomyosins identified as allergens in six species of crustaceans.
Although tropomyosin is known to be a major allergen of crustaceans, its structural information is limited to only five species. In this study, tropomyosin was confirmed to be a major allergen in six… Expand
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Identification of an antibacterial protein as L‐amino acid oxidase in the skin mucus of rockfish Sebastes schlegeli
Fish skin mucus contains a variety of antimicrobial proteins and peptides that seem to play a role in self defense. We previously reported an antibacterial protein in the skin secretion of the… Expand
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Purification, properties and cDNA cloning of neoverrucotoxin (neoVTX), a hemolytic lethal factor from the stonefish Synanceia verrucosa venom.
A proteinaceous toxin with hemolytic and lethal activities, named neoverrucotoxin (neoVTX), was purified from the venom fluid of stonefish Synanceia verrucosa and its primary structure was elucidated… Expand
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An epidermal growth factor-like toxin and two sodium channel toxins from the sea anemone Stichodactyla gigantea.
Three peptide toxins (gigantoxins I-III) with crab toxicity were isolated from the sea anemone Stichodactyla gigantea by gel filtration on Sephadex G-50 and reverse-phase HPLC on TSKgel ODS-120T and… Expand
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Antibacterial action of L-amino acid oxidase from the skin mucus of rockfish Sebastes schlegelii.
L-amino acid oxidase (LAO) shows broadly antibacterial activity against Gram-positive and Gram-negative bacteria by H(2)O(2) generated in the oxidative process of L-amino acids. However, LAO (termed… Expand
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Purification and cDNA cloning of a new heat-stable allergen from Anisakis simplex.
The nematode Anisakis simplex is a representative parasite for marine animals and occasionally causes not only anisakiasis but also allergic reactions in sensitized subjects. Besides the known… Expand
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