GFAP and Alzheimer disease: We have quantified the percentages of astrocytes that were immunoreactive for sPLA2-IIA and GFAP, and also the percentages of sPLA2-IIA-positive astrocytes that are associated with thioflavin S-positive plaques from brain sections containing DG, CA3, and ITG regions in AD and ND patients (see Table 1 for patient information).