Immunofluorescence staining was performed as previously described [16 (link), 18 ]. Briefly, after the section was repaired, the slices were incubated with 5% BSA at room temperature for 30 min. The slices were incubated at 4 °C overnight with the following primary antibodies: Sirt1 antibody (1:100, bs-0921R, Bioss). Then, the slices were incubated with the appropriate fluorescence-conjugated secondary antibody (1: 500, Abcam, MA, USA) at 37° C for 1 h.
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