职业与健康 ›› 2025, Vol. 41 ›› Issue (10): 1346-1350.

• 论著 • 上一篇    下一篇

基于重复测量探讨亚砷酸钠致小鼠肝损伤的研究

丁汶萌1, 黄菲2, 卫泽群1, 吴顺华1,3   

  1. 1.新疆医科大学公共卫生学院劳动卫生与环境卫生学教研室,新疆 乌鲁木齐 830054;
    2.新疆医科大学附属肿瘤医院病理中心,新疆 乌鲁木齐 830000;
    3.新疆社会主义学院,新疆 乌鲁木齐 830063
  • 收稿日期:2025-02-14 修回日期:2025-02-27 出版日期:2025-05-15 发布日期:2025-12-18
  • 通信作者: 吴顺华,教授,E-mail:wushunhua@126.com
  • 作者简介:丁汶萌,男,在读硕士研究生,研究方向为环境与健康。
  • 基金资助:
    国家自然科学基金项目(82160650)

Study on liver injury induced by sodium arsenite in mice based on repeated measurements

DING Wenmeng1, HUANG Fei2, WEI Zequn1, WU Shunhua1,3   

  1. 1. Occupational and Environmental Health Teaching and Research Office,School of Public Health,Xinjiang Medical University,Urumqi,Xinjiang 830054,China;
    2. Pathology Center,The Affiliated Tumor Hospital of Xinjiang Medical University,Urumqi,Xinjiang 830000,China;
    3. Xinjiang Institute of Socialism,Urumqi,Xinjiang 830063,China
  • Received:2025-02-14 Revised:2025-02-27 Online:2025-05-15 Published:2025-12-18
  • Contact: WU Shunhua,Professor,E-mail:wushunhua@126.com

摘要: 目的 了解砷致小鼠肝损伤中砷暴露浓度与染毒时间的交互作用,为砷致肝损伤的防治提供新的思路。方法 以96只SPF级Balb/c雄性小鼠为研究对象,标准体质量,随机数字法分成4组,每组24只。经口饮用含亚砷酸钠的水慢性染毒,其对照、低、中、高浓度组砷染毒浓度分别为0、10、20、40 mg/L。染毒时间9个月,期间染毒3、6、9个月时每组各处理8只小鼠。测量小鼠体质量、肝重以及血清肝功指标丙氨酸氨基转移酶(alanine aminotransferase,ALT)、天冬氨酸氨基转移酶(aspartate aminotransferase,AST)和白蛋白(albumin,ALB),通过重复测量探讨时间和砷对小鼠肝损伤的影响。Masson染色了解小鼠肝组织纤维化状况。结果 不同染毒时间小鼠体质量差异有统计学意义(P<0.05),染毒6及9个月,不同砷染毒组小鼠肝重、肝脏器系数及lgALT差异均有统计学意义(均P<0.05),染毒3个月不同砷染毒组小鼠lgAST差异有统计学意义(P<0.05)。重复测量方差分析结果显示,主体内效应分析,时间对小鼠体质量、肝脏器系数、ALB的影响显著(F组内=287.315、8.620、10.156,均P<0.05)。交互作用分析,小鼠体质量、肝重的砷暴露浓度与染毒时间存在交互作用(F交互=3.005、3.205,均P<0.05)。主体间效应分析,不同浓度砷染毒小鼠的体质量、肝重、肝脏器系数、lgALT、lgAST比较,差异均有统计学意义(F组间=8.221、19.084、5.995、11.445、6.290,均P<0.05)。Masson染色结果显示小鼠肝组织纤维化状况与砷暴露浓度和染毒时间呈正相关。结论 慢性砷暴露可致小鼠肝损伤、肝纤维化,与砷的暴露浓度和染毒时间密切相关,在体质量、肝重指标中发现砷暴露浓度与染毒时间存在交互作用,为地砷病的防治提供了新的思路。

关键词: 肝损伤, 肝纤维化, 亚砷酸钠, Balb/c小鼠, 重复测量

Abstract: Objective To explore the interactive effects of arsenic exposure concentration and exposure duration on arsenic-induced liver injury in mice,and to provide new ideas for the prevention and treatment of arsenic-induced liver injury. Methods A total of 96 SPF-grade male Balb/c mice with standard body weight were randomly divided into four groups,each consisting of 24 mice,using a random number method. They were chronically exposed to sodium arsenite through oral consumption of water,with arsenic concentrations in the control,low,medium,and high dose groups being 0,10,20,and 40 mg/L,respectively. The exposure period was 9 months,during which 8 mice from each group were treated at 3,6,and 9 months. The body weight and liver weight of the mice were measured,as well as the serum liver function indicators alanine aminotransferase(ALT),aspartate aminotransferase (AST),and albumin(ALB). The effects of time and arsenic on liver injury in mice were investigated through repeated measurements. Masson staining results showed fibrosis in mouse liver tissue. Results There was a statistically significant differences in mouse body weight at different exposure times(P<0.05). At 6 and 9 months of exposure,there were statistically significant differences in liver weight,liver organ coefficient,and lgALT among mice in different arsenic exposure groups(all P<0.05). At 3 months of exposure,there was a statistically significant difference in lgAST among mice in different arsenic exposure groups(P<0.05). Repeated measures ANOVA results showed that in within-subject effect analysis,mice body weight,liver organ coefficient,and ALB showed a time-dependent trends(Fwithin-group=287.315,8.620,10.156,all P<0.05). The interaction analysis showed that there was an interaction between arsenic exposure concentration and exposure time of mice body weight and liver weight(Finteraction=3.005,3.205,both P<0.05). The inter-subject effect analysis showed that there were statistically significant differences in body weight,liver weight,liver organ coefficient,lgALT,and lgAST among mice exposed to different concentrations of arsenic(Fbetween-groups=8.221, 19.084,5.995,11.445,6.290,all P<0.05). The results of Masson staining showed that the fibrosis status of mouse liver tissue was positively correlated with arsenic exposure concentration and time. Conclusion Chronic arsenic exposure can cause liver injury and fibrosis in mice,which is closely related to the exposure concentration and duration of arsenic,and the interaction between arsenic exposure concentration and time was found in body weight and liver weight indicators,which provides a new thought for the prevention and treatment of endemic arsenism.

Key words: Liver injury, Liver fibrosis, Sodium arsenite, Balb/c mice, Repeated measurements

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