• 제목/요약/키워드: Biological effect

검색결과 6,000건 처리시간 0.042초

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
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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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
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.2-2
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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
    • 환경생물
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    • 제21권4호
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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.

강활 잎절편 배양으로부터 체세포배의 발생 및 발아에 미치는 배지 산성도의 영향 (Effect of medium pH on development and germination of somatic embryos formed from leaf explant culture of Ostericum Koreanum Kitagawa.)

  • CHO, Duck-Yee;SOH, Woong-Young;LEE, Eun Kyung
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2000년도 제7차 국제 심포지움(생약자원개발에 관한연구) 및 추계정기 학술발표회 초록집
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    • pp.77-78
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    • 2000
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