检索结果-南通市图书馆

Reproductive toxicity of enrofloxacin in Caenorhabditis elegans involves oxidative stress-induced cell apoptosis

Journal of Environmental Sciences 2023年第5期127卷 726-737页

作者： Jiahao Huang Lizi Liao Guowei Wang Zhongkun Du Zhengxing Wu Key Laboratory of Molecular Biophysics Ministry of EducationCollege of Life Science and TechnologyHuazhong University of Science and TechnologyWuhan 430074China School of Environmental Ecology and Biological Engineering Wuhan Institute of TechnologyWuhan 430205China Key Laboratory of Green Chemical Engineering Process of Ministry of Education Wuhan 430205China College of Resources and Environment Shandong Agricultural UniversityTaian 271018China

Fluoroquinolone antibiotics(FQs)that persist and bioaccumulate in the environment have aroused people’s great ***,we studied the adverse effects of FQs in soil animals of Caenorhabditis elegans via food-chronically *** result shows *** exposed to FQs exhibited reproductive toxicity with small-brood size and low-egg *** study the underlying mechanism,we conduct a deep investigation of enrofloxacin(ENR),one of the most frequently detected FQs,on nematodes which is one of commonly used animal indicator of soil *** concentration-effect curves simulated by the Hill model showed that the half effect concentrations(EC50)of ENR were(494.3±272.9)μmol/kg and(107.4±30.9)μmol/kg for the brood size and the hatchability,*** gene expression between the control and the ENR-exposure group enriched with the oxidative stress and cell apoptosis *** results together with the enzyme activity in oxidative stress and the cell corpses suggested that ENR-induced reproductive toxicity was related to germ cell apoptosis under oxidative *** risk quotients of some soil and livestock samples were calculated based on the threshold value of EC10 for the egg hatchability(2.65μmol/kg).The results indicated that there was possible reproductive toxicity on the nematodes in certain agricultural soils for the *** study suggested that chronic exposure to FQs at certain levels in environment would induce reproductive toxicity to the nematodes and might reduce the soil sustainability,alarming the environment risks of antibiotics abuse.

关键词： Environmental toxicity Nematodes Chronic exposure Oxidative stress response germ cell apoptosis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Immunohistopathology of the contralateral testis of rats undergoing experimental torsion of the spermatic cord

引用

Asian Journal of Andrology 2006年第5期8卷 576-583页

作者： MarceloG.Rodriguez ClaudiaRival MariaS.Theas LiviaLustig Center for Research in Reproduction School of MedicineUniversity of Buenos AiresBuenos Aires C1121 ABGArgentina

Aim： To evaluate the immunohistopathological changes in the contralateral testis of rats after an experimental spermatic cord torsion. Methods： Male Sprague-Dawley rats of 45-50 days old were subjected to a 720° unilateral spermatic cord torsion for 10, 30 and 80 days （experimental group, E）, respectively or sham operation （control group, C）. Histopathology of the contralateral testis as well as germ cell apoptosis were studied using the Terminal Deoxynucleotidyl Transferase Biotin-dUTP Nick End Labeling （TUNEL） technique. The number of testicular lymphocytes, mast cells and macrophages, and the expression of tumor necrosis factor-α （TNF-α） and its receptor （TNFR1） in testicular cells of the contralateral testis were quantified by histochemistry and immunohistochemistry. TNF-α concentration in testicular fluid was determined by ELISA. Results： In the contralateral testis of rats from the E group, the maximal degree of damage of the germinal epithelium was seen 30 days after torsion. At this time we observed in the E group vs. the C group increases：（i） the number of testicular T-lymphocytes; （ii） the number of testicular mast cells and macrophages; （iii） the percentage of macrophages expressing TNF-α; （iv） TNF-α concentration in testicular fluid; （v） the number of apoptotic germ cells; and （vi） the number of TNFR1^＋ germ cells. Conclusion： Experimental spermatic cord torsion induces, in the contralateral testis, a focal damage of seminiferous tubules characterized by apoptosis and sloughing of germ cells. Results suggest humoral and cellular immune mediated testicular cell damage in which macrophages and mast cells seem to be involved in the induction of germ cell apoptosis through the TNF-α/TNFR1 system and in the modulation of the inflammatory process.

关键词： testicular torsion TNF-α/TNFR1 T-lymphocytes macrophages mast cells germ cell apoptosis spermatic cord

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：