Effect of betaine on the mRNA expression of Wnt10b, GSK-3β, and β-catenin in the liver of zebrafish. (A) The mRNA expression of Wnt10b; (B) The mRNA expression of GSK-3β; (C) The mRNA expression of β-catenin. Values are expressed as means ± sem (n = 3). Statistically significant differences are denoted by different letters (p < 0.05).

Effect of betaine on the mRNA expression of CAT, SOD, and GSH-PX in the liver of zebrafish. (A) The mRNA expression of CAT; (B) The mRNA expression of SOD; (C) The mRNA expression of GSH-PX. Values are expressed as means ± sem (n = 3). Statistically significant differences are denoted by different letters (p < 0.05).

Effect of betaine on the level of ROS in the liver of zebrafish. (A) The level of O2·−; (B) The level of ·OH; (C) The level of H2O2. Values are expressed as means ± sem (n = 3). Statistically significant differences are denoted by different letters (p < 0.05).

Effect of betaine on the activities of antioxidant enzymes in the liver of zebrafish. (A) The activity of CAT; (B) The activity of SOD; (C) The activity of GSH-PX. Values are expressed as means ± sem (n = 3). Statistically significant differences are denoted by different letters (p < 0.05).

The mechanism by which betaine regulates the production of ROS through Wnt10b/β-catenin signaling pathway in the zebrafish liver.

Acknowledgments
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