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Generation of reactive oxygen species by raphidophycean phytoplankton.
- T. Oda, A. Nakamura, M. Shikayama, I. Kawano, A. Ishimatsu, T. Muramatsu
- Environmental Science, BiologyBioscience, biotechnology, and biochemistry
- 23 October 1997
The results suggest that the generation of reactive oxygen species is a common feature of raphidophycean flagellates, and Chattonella has the highest rates of production of O2- and H2O2 as compared on the basis of cell number.
Oxygen radicals in influenza-induced pathogenesis and treatment with pyran polymer-conjugated SOD.
It is indicated that oxygen radicals are important in the pathogenesis of influenza virus infection, and that a polymer-conjugated SOD has therapeutic potential for this virus infection and other diseases associated with free radicals.
Fucoidan from Macrocystis pyrifera Has Powerful Immune-Modulatory Effects Compared to Three Other Fucoidans
Data suggest that fucoidan from M. pyrifera can be potentially useful as a therapeutic agent for infectious diseases, cancer and an effective adjuvant for vaccine.
Superoxide production by marine microalgae
It is speculated that superoxide, while not the sole ichthyotoxic principle, may play a wider role in algal toxicity than previously considered, and a broad classification of microalgae based upon superoxide production is proposed.
Inhibitory effect of the iron chelator desferrioxamine (Desferal) on the generation of activated oxygen species by Chattonella marina
The results suggest that iron is required for the generation of activated oxygen species by C. marina, as well as for its own growth.
Involvement of the Golgi region in the intracellular trafficking of cholera toxin
- M. Nambiar, T. Oda, C. Chen, Y. Kuwazuru, H. C. Wu
- BiologyJournal of cellular physiology
- 1 February 1993
The intracellular pathway following receptor‐mediated endocytosis of cholera toxin was studied using brefeldin A (BFA), which inhibited protein secretion and induced dramatic morphological changes in the Golgi region, suggesting that a BFA‐sensitive Golgi is required for the protection of CT cytotoxicity by BFA.
Evidence for the production of a novel proteinaceous hemolytic exotoxin by dinoflagellate Alexandrium taylori
Structure–activity relationship of alginate oligosaccharides in the induction of cytokine production from RAW264.7 cells
Purification and Characterization of Bifunctional Alginate Lyase from Alteromonas sp. Strain No. 272 and Its Action on Saturated Oligomeric Substrates
- Y. Iwamoto, R. Araki, T. Muramatsu
- Biology, ChemistryBioscience, biotechnology, and biochemistry
- 1 January 2001
A marine bacterium isolated from sea mud in Omura Bay produced an alginate lyase and was classified as an Alteromonas species, and the predominant secondary structure of the enzyme was found to be most likely β-structure by circular dichroism.
Primary structure of mannuronate lyases SP1 and SP2 fromTurbo cornutus and involvement of the hydrophobic C-terminal residues in the protein stability
Results indicate that the higher stability of SP2 than SP1 arises from the presence of the C-terminal two hydrophobic amino acid residues, which are also found in mannuronate lyase.