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- _2 value "Two-hour exposure to approximately 25 microM H2O2 (generated by adding glucose oxidase to the medium) resulted in disruption of the normal insulin stimulated insulin receptor substrate (IRS)-1 and phosphatidylinositol (PI) 3-kinase cellular redistribution between the cytosol and an internal membrane pool (low density microsomal fraction (LDM)). This was associated with reduced insulin-stimulated IRS-1 and p85-associated PI 3-kinase activities in the LDM (84 and 96% inhibition, respectively). The effect of this finding on the downstream insulin signal was demonstrated by a 90% reduction in insulin stimulated protein kinase B (PKB) serine 473 phosphorylation and impaired activation of PKBalpha and PKBgamma." provenance.
- _2 wasQuotedFrom 10187855 provenance.