PHYHD1 and Alzheimer disease: The significantly upregulated differentially expressed genes in AD intersected with the neurotoxic astrocyte cell population, resulting in the identification of twelve key genes, including GNG12, ZFP36L1, AEBP1, WWTR1, PHYHD1, RASL12, DST, CUL4A, ADAMTSL3, LTBP1, NKTR, ANGPT1 (Fig. 3D, Table 2).