Fig. 6

Quercetin increased the numbers of M2-type macrophages/microglia after SCI. a–c Expression of M2-associated mRNA transcripts of Arginase1, IL-4, CD206 in saline, or quercetin-treated rats at 10 dpi. d Double-staining of Arginase1 and Iba-1 in quercetin-treated or saline-treated rats at 10 dpi. Scale bar = 30 μm. e Quantification of the numbers of Arginase1-positive microglia/macrophages. Sections were taken from the lesion epicenter. All data are expressed as mean ± SEM. Differences among groups were determined with unpaired two-tailed t test (a–c, e). N = 6 in each group, *p < 0.05