期刊
BRAIN RESEARCH BULLETIN
卷 146, 期 -, 页码 270-278出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.brainresbull.2019.01.014
关键词
Nonylphenol; Long-term potentiation; Learning and memory; BDNF-PI3K/Akt signaling; Maternal-to-fetal rat model
资金
- Natural Science Foundation of Liaoning Province, China [201602865]
- Program for Liaoning Innovative Research Team in University [LT2015028]
Nonylphenol (NP), a global environmental pollutant, has been found to result in impairments of neurodeve-lopment. However, effects of maternal exposure to NP on learning and memory and the potential mechanisms are largely unexplored. Thus, we treated dams with NP during gestation and lactation to study its effect on learning and memory in offspring. Morris water maze (MWM) task and the electrophysiological recording in the hippocampus were conducted in pups. We also investigated the activation of BDNF-PI3K/Akt signaling and the expression of its target protein PSD-95 in offspring hippocampus, which are curial for the synaptic plasticity and learning and memory. The results showed that maternal exposure to NP led to poor performance in MWM task and especially impairments of long-term potentiation (LTP), although the termination of NP exposure was at the end of lactation. Meanwhile, maternal exposure to NP also decreased the activation of BDNF-PI3K/Akt signaling and the protein level of PSD-95. Taken together, our results support the hypothesis that maternal exposure to NP during gestation and lactation causes damages to learning and memory. In addition, suppressed activation of the BDNF-PI3K/Akt signaling may contribute to these impairments caused by maternal exposure to NP.
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