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. 2020 Jul 14;17:210. doi: 10.1186/s12974-020-01887-1

Fig. 2.

Fig. 2

Downregulation of BDNF and TrkB in aged microglial cells. ab Representative dual immunofluorescent images show the distribution of BDNF (a) and TrkB (c) in the Iba1+ cells in the SN of 6- and 12-month-old mice. Scale bar: 10 μm. The percent areas of BDNF+Iba1+/Iba1+ (b) and TrkB+Iba1+/Iba1+ (d) in the SN of 6- and 12-month-old mice. BDNF+ areas were detected from 31 cells in three 6-month-old mice and 56 cells in three 12-month-old mice; TrkB+ areas were obtained from 35 cells in three 6-month-old mice and 73 cells in three 12-month-old mice. ***p < 0.001 versus 6-month-old mice. eh Correlations (Pearson) between the levels of BDNF and TrkB, and the area and number of Iba1+ cells (n = 24)