Exercise before pregnancy exerts protective effect on prenatal stress-induced impairment of memory, neurogenesis, and mitochondrial function in offspring
Tae-Woon Kim, Sang-Seo Park, Sang-Hoon Kim, Myung-Ki Kim, Mal-Soon Shin, Seong-Hyun Kim
언어
영어(ENG)
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https://www.earticle.net/Article/A446096
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초록
영어
Stress during pregnancy has a negative effect on the fetus. However, maternal exercise has a positive effect on the cognitive function of the fetus and alleviates the negative effects of stress. This study aimed to demonstrate whether exercise before pregnancy has a protective ef-fect on prenatal stress-induced impairment of memory, neurogenesis and mitochondrial function in mice offspring. In this experiment, immu-nohistochemistry, Western blot, measurement of mitochondria oxygen respiration, and behavior tests were performed. Spatial memory and short-term memory of the offspring from the prenatal stress with exer-cise were increased compared to the offspring from the prenatal stress. The numbers of doublecortin-positive and 5-bromo-2’-deoxyuridine- positive cells in the hippocampal dentate gyrus of the offspring from the prenatal stress with exercise were higher compared to the offspring from the prenatal stress. The expressions of brain-derived neurotrophic factor, postsynaptic density 95 kDa, and synaptophysin in the hippo-campus of the offspring from the prenatal stress with exercise were enhanced compared to the offspring from the prenatal stress. Oxygen consumption of the offspring from the prenatal stress with exercise were higher compared to the offspring from the prenatal stress. Exer-cise before pregnancy alleviated prenatal stress-induced impairment of memory, neurogenesis, and mitochondrial function. Therefore, exercise before pregnancy may have a protective effect against prenatal stress of the offspring.
목차
Abstract INTRODUCTION MATERIALS AND METHODS Experiment animals Exercise protocol before pregnancy Stress exposure to pregnant mice Elevated plus maze test Morris water maze task Step-through avoidance task Doublecortin immunohistochemistry 5-bromo-2’-deoxyuridine immunohistochemistry Western blotting for brain-derived neurotrophic factor, postsynaptic density 95 kDa, and synaptophysin Measurement of mitochondria oxygen respiration Data analysis RESULTS Behavioral tests DCX and BrdU-positive cells in the dentate gyrus BDNF, PSD-95, and synaptophysin expression in the hippocampus Mitochondrial oxygen respiration in the hippocampus DISCUSSION CONFLICT OF INTEREST ACKNOWLEDGMENTS REFERENCES
키워드
Maternal stressPregnancyExerciseOffspringMemory
저자
Tae-Woon Kim [ Department of Human Health Care, Gyeongsang National University, Jinju, Korea ]
Sang-Seo Park [ Department of Physiology, College of Medicine, Kyung Hee University, Seoul, Korea ]
Sang-Hoon Kim [ Department of Sport and Health Sciences, College of Art and Culture, Sangmyung University, Department of Neurosurgery, Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, Piscataway, NJ, USA ]
Myung-Ki Kim [ College of Culture and Sports, Division of Global Sport Studies, Korea University, Sejong, Korea ]
Mal-Soon Shin [ College of Culture and Sports, Division of Global Sport Studies, Korea University, Sejong, Korea ]
Seong-Hyun Kim [ Department of Kinesiology, Michigan State University, East Lansing, MI, USA ]
Corresponding Author