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2006•Zhongguo bingli shengli zazhiRequires access

Role of preconditioning to oxidative stress in HepG2 cells

Fei Zou

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Abstract

AIM: To induce preconditioning and oxidative stress by H_2O_2 in HepG2 cells. METHODS: The different doses of H_2O_2 were used to induce apoptosis in HepG2 cells, which was estimated by AO/EB staining, MTT assay and flow cytometry. RESULTS: The different group of HepG2 cells stained with AO/EB showed different staining state. The high dose of H_2O_2 resulted in the increase in apoptosis rate of HepG2 cells and made MTT activity decreased. However, after pretreated with low dose of H_2O_2, the apoptosis rate was decreased and MTT activity was increased. CONCLUSION: The high dose H_2O_2 induced apoptosis in HepG2 cells and the low dose H_2O_2 protected HepG2 cells against the oxidative stress.

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What this paper is about

AIM: To induce preconditioning and oxidative stress by H_2O_2 in HepG2 cells. METHODS: The different doses of H_2O_2 were used to induce apoptosis in HepG2 cells, which was estimated by AO/EB staining, MTT assay and flow cytometry. RESULTS: The different group of HepG2 cells stained with AO/EB showed different staining state. The high dose of H_2O_2 resulted in the increase in apoptosis rate of HepG2 cells and made MTT activity decreased. However, after pretreated with low dose of H_2O_2, the apoptosis rate was decreased and MTT activity was increased. CONCLUSION: The high dose H_2O_2 induced apoptosis in HepG2 cells and the low dose H_2O_2 protected HepG2 cells against the oxidative stress.

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Available abstract

AIM: To induce preconditioning and oxidative stress by H_2O_2 in HepG2 cells. METHODS: The different doses of H_2O_2 were used to induce apoptosis in HepG2 cells, which was estimated by AO/EB staining, MTT assay and flow cytometry. RESULTS: The different group of HepG2 cells stained with AO/EB showed different staining state. The high dose of H_2O_2 resulted in the increase in apoptosis rate of HepG2 cells and made MTT activity decreased. However, after pretreated with low dose of H_2O_2, the apoptosis rate was decreased and MTT activity was increased. CONCLUSION: The high dose H_2O_2 induced apoptosis in HepG2 cells and the low dose H_2O_2 protected HepG2 cells against the oxidative stress.

Key concepts: Oxidative stress, Apoptosis, MTT assay, Flow cytometry, Staining, Molecular biology, Chemistry, Andrology

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