• 제목/요약/키워드: Metabolism.

검색결과 7,219건 처리시간 0.029초

A Study on The Mechanism of Oxidative Stress, Screening of Protective Agents and Signal Transduction of Cell Differentiation in Cultured Osteoblast and Osteoclast Damaged by Reactive Oxygen Species

  • Park, Seung-Taeck;Han, Du-Suk
    • 한국독성학회:학술대회논문집
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    • 한국독성학회 2003년도 춘계학술대회 논문집
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    • pp.66-67
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    • 2003
  • It is well known that osteoblasts and osteoc1asts playa key role in bone metabolism. They involve in osteoformation or bone destruction which are ragulated by various factors such as thyroid hormone, parathyroid hormone, estrogen, growth factor and cytokine. Recently, it is demonstrated that oxidative stress is one of pathological factors in bone metabolism, but it is left unknown about mechanism between oxidative stress and bone metabolism.(omitted)

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Microbial Metabolism of the Environmental Estrogen Bisphenol A

  • Yim, Soon-Ho;Kim, Hyun-Jung;Lee, Ik-Soo
    • Archives of Pharmacal Research
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    • 제26권10호
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    • pp.805-808
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    • 2003
  • Preliminary microbial metabolism studies of bisphenol A (BPA) (1) on twenty six microorganisms have shown that Aspergillus fumigatus is capable of metabolizing BPA. Scale-up fermentation of 1 with A. fumigatus gave a metabolite (2) and its structure was established as bisphenol $A-O-{\beta}-D-glucopyranoside$ (BPAG) based on spectroscopic analyses.

A survey of the action of Korean angelica plants on drug metabolism

  • Woo, Won-Sick;Shin, Kuk-Hyun;Ryu, Kyung-Soo
    • Archives of Pharmacal Research
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    • 제3권2호
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    • pp.79-84
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    • 1980
  • Eight species of the genus Angelica in Korea were examined for the activity of affecting drug metabolism and for the presence of coumarins. The results showed that various parts, especially roots and fruits of Angelica plants had strong effects on drug metabolism and that they contained various derivatives of coumarins.

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괄루근으로부터 추출한 다당류의 항당뇨활성 및 당뇨성 쥐의 글루타치온대사에 미치는 영향 (Effect of Polysaccharide from Trichosanthes kirilowii on Antidiabetic Activity and Glutathione Metabolism in Hyperglycemic Rats)

  • 정연봉;이종철
    • 약학회지
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    • 제39권5호
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    • pp.528-534
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    • 1995
  • This investigation was aimed at the study of the antidiabetic activity and effect on hepatic glutathione metabolism of polysaccharide from Trichosanthes kirilowii in hyperglycemic rats with aboxan (175 mg/Kg, i.p.). As the results, the polysaccharide inhibited the increase of blood glucose, triglyceride level and lactate dehydrogenase activity, but cholesterol not changed. And it increased protein bound-SH, nonprotein bound-SH, glutathione level and inhibited the decrease of glutathione S-transferase.

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Search for acetaldehyde trapping agents by using alcohol dehydrogenase assay

  • Lee, Hyun-Joo;Lee, Kang-Man
    • 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.160.3-161
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    • 2003
  • Aldehyde and active form of free oxygen produced in alcohol metabolism in liver are the cause of liver cell damage. The main system of alcohol metabolism is composed of alcohol dehydrogenase(ADH), aldehyde dehydrogenase(ALDH) and cytochrome P4502E1. Alcohol dehydrogenase is reversible in alcohol metabolism. To block the backward reaction and enhance alcohol oxidation, acetaldehyde trapping agents were assayed. The assay was carried out by measuring decreasing NADH at 340nm, using acetaldcehyde and NADH as substrate and coenzyme respectively. (omitted)

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