首页> 外文期刊>Comparative Medicine >Source of a micro-nutrient in a semi-synthetic basal diet as a causative factor in inducing urinary calculi in rats and its inhibition by PSC 833, a potent inhibitor of P-glycoprotein
【24h】

Source of a micro-nutrient in a semi-synthetic basal diet as a causative factor in inducing urinary calculi in rats and its inhibition by PSC 833, a potent inhibitor of P-glycoprotein

机译:半合成基础饮食中微量营养素的来源,可作为诱发大鼠尿结石的成因,并被P-糖蛋白的强效抑制剂PSC 833抑制

获取原文
获取原文并翻译 | 示例
           

摘要

We report a serendipitous finding of urinary calculi in rats fed a semi-synthetic basal diet. This observation was made during ongoing studies to evaluate the inhibitory effect of PSC 833, a potent inhibitor of P-glycoprotein, on development of tumors in rodent tumor model systems. A large number of specific-pathogen-free (SPF) female Sprague-Dawley and SPF male Fischer 344 rats being fed the diet were euthanized when it became evident clinically that they were uremic. At necropsy, the renal pelvis, ureters, and urinary bladder contained numerous calculi. The presence of urinary calculi was determined to be related to the source of a Food Chemical Codex grade of choline bitartrate. Rats being fed the same basal diet containing the United States Pharmacopia grade of choline bitartrate failed to develop urinary calculi. Interestingly, rats treated with the P-glycoprotein inhibitor were at significantly reduced risk of developing urinary calculi. This finding highlights how something seemingly innocuous as a minor dietary constituent can have a profound impact and, thereby, affect experimental outcome.
机译:我们报告了在半合成基础饮食喂养的大鼠中尿结石的偶然发现。在正在进行的研究中进行了这一观察,以评估PSC 833(一种有效的P糖蛋白抑制剂)对啮齿类肿瘤模型系统中肿瘤发展的抑制作用。当从临床上明显发现它们是尿毒症时,对接受饮食喂养的大量无特定病原(SPF)雌性Sprague-Dawley和SPF雄性Fischer 344大鼠实施安乐死。尸检时,肾盂,输尿管和膀胱含有大量结石。确定尿路结石的存在与食品级法典等级的酒石酸胆碱的来源有关。喂食含有美国药典等级的酒石酸胆碱的相同基础饮食的大鼠未出现尿路结石。有趣的是,用P-糖蛋白抑制剂治疗的大鼠患尿路结石的风险显着降低。这一发现突显出一些看起来像无害的东西作为一种次要的饮食成分将如何产生深远的影响,从而影响实验结果。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号