1.1)西南医科大学附属中医医院中葡中医药国际合作中心,泸州 646000;2.2)中国农业科学院农产品加工研究所,北京 100193;3.3)西南医科大学药学院,泸州 646000;4.4)首都医科大学附属北京佑安医院重症肝病科,北京 100069;5.5)中国航天员科研训练中心航天医学基础与应用国家重点实验室,北京 100094;6.6)中国航天员科研训练中心人因工程国家重点实验室,北京 100094;7.7)中国医学科学院北京协和医学院药用植物研究所药理毒理研究中心,北京 100193;8.8)Dr Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
航天医学基础与应用国家重点实验室开放项目(SMFA18K06),国家重点研发计划(2016YFE0131800)和泸州市高端人才引进项目(刘新民团队)资助。
1.1)Sino-Portugal TCM International Cooperation Center, the Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou 646000, China;2.2)Institute of Food Science and Technology, Chinese Academy of Agriculture Sciences (CAAS), Beijing 100193, China;3.3)Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou 646000, China;4.4)Department of Critical Care Medicine of Liver Disease, Beijing You-An Hospital, Capital Medical University, Beijing 100069, China;5.5)State Key Laboratory of Space Medicine Fundamentals and Application, China Astronaut Research and Training Center, Beijing 100094, China;6.6)National Key Laboratory of Human Factors Engineering, China Astronaut Research and Training Center, Beijing 100094, China;7.7)Research Center for Pharmacology & Toxicology, Institute of Medicinal Plant Development (IMPLAD), Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China;8.8)Dr Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan
This work was supported by grants from the Opening Foundation of the State Key Laboratory of Space Medicine Fundamentals and Application, Chinese Astronaut Research and Training Center (SMFA18K06), the National Key Research and Development Program of China (2016YFE0131800) and the High-end Talents Recruitment Program (Liu Xinmin group) of Luzhou Municipal People’s Government.
目的 本研究旨在观察不同持续时间的模拟失重对大鼠抑郁样行为和海马超氧化物歧化酶(SOD)和过氧化氢酶(CAT)的影响,以探究其影响及可能的作用机制。方法 采用后肢悬挂(HLS)尾吊法模拟大鼠失重状态。将大鼠分为对照组和不同模拟失重时间尾吊组(尾吊时长分别为1、2、3、4周)。采用旷场实验(OFT)、新物体识别实验(NORT)、强迫游泳实验(FST)观察大鼠抑郁样行为,采用酶联免疫吸附试验(ELISA)法测定海马SOD和CAT活性。结果 OFT结果显示,与对照组相比,HLS不同时间大鼠的僵滞时间增加(P<0.05,P<0.01)。在NORT中,与对照组相比,HLS不同时间大鼠对新物体的探索潜伏期增加,探索次数和时间减少(P<0.05,P<0.01)。在FST中,与对照组相比,HLS不同时间大鼠在FST中的不动时间增加,攀爬次数减少(P<0.05,P<0.01)。与对照组相比,HLS不同时间组大鼠海马组织中SOD和CAT水平均下降(P<0.05,P<0.01)。结论 短时间或长时间的失重都会导致大鼠产生类抑郁样行为。
Objective This study was designed to observe different durations of simulated weightlessness induced depressive-like behaviors and the change of superoxide dismutase (SOD) and catalase (CAT) in hippocampi of rats, so as to explore its effects and possible mechanism.Methods Weightlessness was simulated by hindlimb suspension by tails (HLS) in rats. The rats were divided into the control and the HLS groups for each respective week (s), i.e., 1, 2, 3, and 4. The depressive-like behaviors in rats were investigated by using the open field test (OFT), novel object recognition test (NORT), forced swim test (FST), followed by hippocampal protein level estimation of SOD and CAT by ELISA.Results The OFT results showed increased stagnation time among HLS rats in each respective group compared to their corresponding control groups (P<0.05, P<0.01). In the NORT, the latency of exploration increased, while the number and the time of exploration decreased in the HLS groups in each week, compared to their corresponding control rats (P<0.05, P<0.01). Similarly, FST displayed enhanced immobility with the reduced climbing rate in HLS rats in each respective week, compared to the normal rats (P<0.05, P<0.01). Simulated weightlessness significantly reduced the SOD and CAT levels in the hippocampi in HLS rats compared to the normal rats (P<0.05, P<0.01).Conclusion Results suggest that short or long weightlessness could induce depressive-like behaviors in rats.
张米佳,王孟迪,Ayaz Ahmed,董丽,姚勤伟,李莹辉,曲丽娜,陈善广,刘新民,王琼.模拟失重不同时长对大鼠抑郁样行为的影响[J].生物化学与生物物理进展,2023,50(2):346-357
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