Figure 2. CircRNAs expression in D-galactose-induced deficits astrocyte. (A) 7376 astroglia circRNAs were identified and their types were showed; (B) Different expression of circRNAs in D-galactose induced aging astrocyte; (C) Time series analysis of circRNAs positively correlated to the degree of aging; Different expression of circRNAs in D2 (D); Aging regulates circRNAs as circ_NF1-419 (circ_000978), circ_002671, circ_003172, circ_CTGF-212, circ_SIRT1-395, circ_002276, circ_SIRT1-623, circ_001215, circ_001216 and circ_000987 were validated by reverse transcription polymerase chain reaction in cultured astrocyte (E, F). D0 (culture without 20 g/L D-galactose), D1 (culture in 20 g/L D-galactose for one generations) and D2 (culture in 20 g/L D-galactose for two generations) (Figure 2C, 2D), D3 (culture in 20 g/L D-galactose for three generations). Data are presented as the means ± SD of 3 independent experiments. *p <0.05 and **p <0.01 vs. the control group (D0) by one-way ANOVA, followed by the Holm-Sidak test.