Fig. 6

Expression of lactate receptor GPR81 in the various groups (n = 4 per group). a Total RNA in gastric tissues was extracted and qPCR was carried out to examine the expression of genes encoding GPR81. C: Control group; D: disease group; L: Group treated with lactate at a dose of 3 g/ kg. The data were expressed as the means ± SD (n = 6). ** p < 0.01. b IHC staining for GPR81. Gastric samples were fixed and sectioned for staining by the primary antibody of GPR81. Brown granules in cells were considered as positive results