Fig. 4From: Ochratoxin A induces abnormal tryptophan metabolism in the intestine and liver to activate AMPK signaling pathwayDecreased energy metabolism induced by OTA activates AMPK signaling pathway in the liver. A Levels of PARP1, SIRT1 and SIRT3 in the liver (n = 6). B AMPK and mTOR protein expression (n = 4). Values are expressed as mean ± SEM. P < 0.05 is represented by *, P < 0.01 is represented by **, P < 0.001 is represented by ***, and P < 0.0001 is represented by **** Back to article page