Effects of Pregnant Fatigue on the Development of Offspring in Rats

Author:

Wu Fan1,Bai Ting1,Yan Shuhan1,Zhang Feng1ORCID

Affiliation:

1. Medical College of Nantong University, Nantong, China

Abstract

Aim To explore the correlation between pregnant fatigue and intrauterine physical and neural development of offspring in rats. Methods Sprague-Dawley pregnant rats were randomly divided into a normal control group, a mild fatigue group (stand in water for 6 hours/day), and a severe fatigue group (stand in water for 15 h/day). The levels of lactic acid, 5-Hydroxytryptamine and Interleukin-6 in cardiac serum of rats were used to evaluate the fatigue. The expression of S100β in the telencephalon, Insulin-like growth factor-1 (IGF-1) in the liver and Cyclooxygenage-2 (COX-2) in the small intestine tissues of fetal rats were examined. Frozen sections were taken from the telencephalon of rat pups to observe morphological changes in the hippocampal primordium. Results Pregnant fatigue led to a decrease in food intake ( F = 37.586, p = 0.000) and water intake ( F = 23.608, p = 0.000) in rats. The IGF-1 mRNA expression of fetal rats in the severe fatigue group was lower than that in the control group ( p = 0.0003). The expression of S100β mRNA ( p = 0.000) and COX-2 mRNA ( p = 0.0002) of fetal rats were higher in the severe fatigue group than in the control group. HE staining of the telencephalon of fetal rats in the pregnant fatigue group revealed sparse and irregular cell arrangement and increased gaps in the hippocampal primordial site. Conclusion Pregnant fatigue rats had both physical fatigue and mental fatigue. Fatigue during pregnancy affects physical development and neurodevelopment of offspring. Further research should elucidate the mechanisms of pregnant fatigue and its effects on offspring.

Funder

Nantong Science and Technology Plan Project

National Natural Science Foundation of China

Postgraduate Research & Practice Innovation Programs of Jiangsu Province

Publisher

SAGE Publications

Subject

Research and Theory

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