不同孕期巨细胞病毒感染对母鼠行为的影响

来源期刊：广州医药 | 7-16 发布时间：2023-07-27 收稿时间：2025/11/13 18:33:11 阅读量：21

作者：: 伍少莹,

李旭芳,

施全,

刘磊,

蒋凤菊,

关键词：: 妊娠小鼠巨细胞病毒行为; gestation mice cytomegalovirus behaviors

DOI：: 10.3969/j.issn.1000-8535.2023.06.002

收稿时间：: 2022-10-11
修订日期：
接收日期：
引用总数：: 0

目的研究母代不同孕期巨细胞病毒（CMV）感染对自身精神及行为的影响。方法 72只BALB/c雌鼠随机分为12组（A1、A2、A3、B1、B2、B3、C1、C2、C3、D1、D2、D3,每组6只）,A为孕期再感染、B为既往感染、C为孕期原发感染、D为空白对照,1为孕早期、2为孕中期、3为孕晚期。母鼠腹腔注射小鼠CMV（murine CMV,MCMV）Smith株建立播散性感染模型,或注射无菌生理盐水建立对照模型。母鼠产仔后同笼合养,产后22 d分笼;母鼠做行为学试验。试验结束,每组随机处死3只母鼠;测量子宫、肝、脑脏器重量系数及唾液腺中MCMV含量。结果 A、B、C组母鼠产后次日体质量均低于D组（均P<0.05）,其中C2、C3组母鼠低体质量情况持续至产后22日（均P<0.05）。A、B、C组母鼠唾液腺组织均测出MCMV。与D组母鼠相比,A1、C1组母鼠活胎率降低（均P<0.05）,A、C组母鼠的子宫、肝、脑脏器系数升高（均P<0.05）且脑组织有病损表现。产后6天时,A3、B3、C组母鼠水平运动总距离和直立次数减少（均P<0.05）,糖水偏好量降低（均P<0.05）,悬尾不动时间延长（P<0.05）;其中,C2、C3组母鼠以上行为退缩情况至产后22天仍存在,且有逃避潜伏时间延长（均P<0.01）,穿越原平台位置次数减少（均P<0.01）情况。结论孕期CMV感染损害母代身心健康,有可能增加子代不良抚养的风险。

Objective To investigate the effects of cytomegalovirus（CMV）infection in different stages of maternal pregnancy on its own spirit and behavior．Methods A total of 72 female BALB/c mice were randomly divided into 12 groups（each group had 6 mice）：A1-A3,B1-B3,C1-C3,D1-D3（group A had re-infection,group B had previous infection,group C had primary infection,group D was blank control,group 1 was in early pregnancy,group 2 was in middle pregnancy,group 3 was in late pregnancy）．The disseminative infection model was established by intraperitoneal inoculation of murine CMV（MCMV）Smith strain,and the blank control model was established by intraperitoneal inoculation of 0.9% sterile saline（NaCl）．After 21 days of parturition,the mothers and offspring were reared in separate cages,mothers were selected for the behavior experiments．At the end of all the behavior tests,3 mothers in each group were killed randomly．Weighed and calculated the organ coefficients of the uteri,livers and brains,and detected the expression levels of MCMV in salivary gland．Results On the first day after delivery,the weights of mothers in groups A,B and C were lower than those in group D（all P<0.05）,the low body weight of mice in C2 and C3 groups lasted to the 22th day（all P<0.05）．The MCMV in salivary gland tissue were found in groups A,B and C,but not in group D．The live fetus rates of groups A1 and C1 were significantly lower than that of group D．The organ coefficients of uteri,livers and brains in groups A and C were higher than those in group D（all P<0.05）．And the lesions of brain tissues in groups A and C were more serious than in the other groups．On the 6th day,compared with the other groups,the mothers of groups A3,B3 and C were significantly abnormal in the open field test,the tail suspension test and the sugar preference test（all P<0.05）．But on 22th day,only the mothers of groups C2 and C3 were significantly abnormal in those tests（all P<0.01）,and even in the water maze test（all P<0.01）．Conclusions Maternal CMV infection in different stages pregnancy have impacts on mother mice's physical and mental health．Those bad situations may bring poor parenting to the offspring．

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