• Title/Summary/Keyword: Biological Effect

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gInhibition effect of nitric oxide production and NF-kB nuclear translocation by 2-hydroxycinnamaldehyde in RAW 264.7 cells

  • Lee, Seung-Ho;Lee, Sun-Young;Park, Hye-Ji;Lee, Yoot-Mo;Lee, Hee-Soon;Song, Suk-Gil;Yoo, Hwan-Soo;Oh, Ki-Wan;Kwon, Byoung-Mog
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.99.1-99.1
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    • 2003

  • Cinnamaldehyde is the main component of cinnamon bark oil and show several biological activities such as anti-tumor, anti-fungal, anti-mutagenic and anti-inflammatory effects. A couple of studies have investigated how the natural compound exerts its anti-inflammatory effect. In despite of numerous investigations, the biological mechanism of effects belong to cinnamaldehyde remain unclear. We isolated 2-hydroxycinnamaldehyde(HCA) from the bark of Cinnamomun cassia Blume and reported a various of biological activities of HCA. (omitted)

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Antioxidant effect of chitosan in the renal failure

  • Yoon, Hyun-Joong;Kim, Young-Ho;Park, Haeng-Soon
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.145.1-145.1
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    • 2003

  • Oxidative stress has been implicated in a range of disease states, including end-stage renal failure treated with hemodialysis [Westhuyzen J. et al, 2003]. Free radicals react with biological molecules and destroy the structure of cells, which eventually causes free-radical induced disease such as cancer, renal failure, aging, etc. Exogenous or endogenously produced nitric oxide (NO) inhibits superoxide-stimulated urea permeability. In the inner medulla, superoxide generation by local oxidases may stimulate urea transport, and the role of endogenous No may be to dampen this effect by decreasing superoxide levels ［Zimpelmann J. et al, 2003 (Epub ahead of print)］. (omitted)

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Biological and Ecological Considerations of the Freshwater Amphipod, Diporeia spp.

  • Song, Ki-Hoon
    • Korean Journal of Environmental Biology
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    • v.21 no.4
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    • pp.328-336
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    • 2003

  • Biological and ecological characteristics of Diporeia spp. are described including size, growth, life cycle, energy storage, temperature effect, bioturbation, feeding depth and sediment ingestion of Diporeia. Bioaccumulation and toxicity of organic contaminants and trace metals were reviewed in addition to an examination of the relationships among various condition indexes (i.e. wet weight, dry weight and body length) of Diporeia.

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