Abstract
ABSTRACTThe aim of the study is to determine the effects of iron on circadian clock gene expression and serum lipid metabolism in sucking piglets. Twenty-four neonatal piglets were selected and randomly assigned into three groups (A, B, and C) with eight replicates. Group A were received 1 mL physiological saline by intramuscular administration at d 3 and d 10; group B were received 1 mL iron dextran (100 mg) by intramuscular administration at d 3 and 1 mL physiological saline at d 10, respectively; group C were received 1 mL of iron dextran (100 mg) by intramuscular administration at both d 3 and d 10. Our results reveal that the relative expressions of Cry1, Cry2, Per1, Per2, and Bmal in liver were significantly different in the three groups (p < 0.05). Meanwhile, the content of triglyceride (TG) and high-density lipoprotein (HDL) in serum were also affected by the iron supplementation (p < 0.05). These results indicated that iron affected hepatic circadian clock genes significantly, meanwhile, it may possible association with lipid metabolism.
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