Abstract
Changes in brain lipids are a well-known correlate of cerebral ischemia involving free fatty acids, especially free arachidonic and docosahexaenoic acids, which reflects phospholipase A2 activation (Bazan, 1970). An additional early correlate in ischemia is the activation of phospholipase C, since diacylglycerols also accumulate (Bazan, 1970; Aveldano and Bazan, 1915a). The predominant fatty acid of the diacylglycerol pool that accumulates is 1-stearoyl-2-arachidonoyl sn-glycerol, as it is in the inositol lipids (phosphatidylinositol, phosphatidylinositol 4’-phosphate, and phosphatidylinositol 4’5’-bisphosphate). Therefore this neurochemical correlate of ischemia reflects inositol lipid degradation (Aveldano and Bazan, 1975a; Ikeda et al., 1986) and has been postulated to be linked to synaptic vulnerability under these conditions (Aveldano and Bazan, 1975a).
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References
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Bazan, N.G. (1992). Modulators of Neural Cell Signaling and Triggering of Gene Expression following Cerebral Ischemia. In: Bazan, N.G., Braquet, P., Ginsberg, M.D. (eds) Neurochemical Correlates of Cerebral Ischemia. Advances in Neurochemistry, vol 7. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3312-2_16
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DOI: https://doi.org/10.1007/978-1-4615-3312-2_16
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