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- W2066747148 abstract "Epidemiological studies have shown that use of non-steroidal anti-inflammatory drugs (NSAIDs) by the elderly is associated with a decreased relative risk and a delayed onset of Alzheimer's disease (AD). In contrast, the apolipoprotein E (apoE) gene has proven to be a risk factor for AD with apoE epsilon 4 AD patients having been found to show lower levels of brain apoE. In the present study, treatment of primary rat mixed glial cell cultures with the common NSAIDs, indomethacin and aspirin, induced significant increases in extracellular apoE protein levels. Similarly, treatment of primary rat astrocyte cell cultures with aspirin and a cyclooxygenase (COX)-2-selective aspirin derivative also stimulated significant increases in apoE protein. However, astrocyte and mixed glial apoE protein levels were significantly reduced following exposure to COX-2-specific indomethacin amides and an inactive indomethacin derivative. ApoE protein modulation was observed at physiological and subphysiological concentrations well below the COX inhibition IC50 values of the NSAIDs used, suggestive of a COX-independent mechanism. In contrast to these results, indomethacin and aspirin treatment failed to induce any significant changes in apoE mRNA levels. The failure of NSAIDs to significantly alter apoE expression may have been indicative of a nontranscriptional mechanism of apoE protein induction. Consequently, NSAID-induced increases in apoE protein may enhance apoE-mediated immunosuppression and compensatory synaptic plasticity, potentially resulting in decreased AD risk and delay of disease onset." @default.
- W2066747148 created "2016-06-24" @default.
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- W2066747148 date "2003-09-01" @default.
- W2066747148 modified "2023-09-27" @default.
- W2066747148 title "Non-steroidal anti-inflammatory drugs mediate increased in vitro glial expression of apolipoprotein E protein" @default.
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- W2066747148 doi "https://doi.org/10.1046/j.1460-9568.2003.02869.x" @default.
- W2066747148 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/14511323" @default.
- W2066747148 hasPublicationYear "2003" @default.
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