【摘 要】
:
已往动物实验表明,缺氧能降低对维持正常耳蜗敏感性非常重要的耳蜗电化学电位。猫的血氧饱和度为25~50%时,其听觉脑干诱发电位(ABER)的振幅及阈敏性降低。大白鼠暴露于含氧5%
论文部分内容阅读
已往动物实验表明,缺氧能降低对维持正常耳蜗敏感性非常重要的耳蜗电化学电位。猫的血氧饱和度为25~50%时,其听觉脑干诱发电位(ABER)的振幅及阈敏性降低。大白鼠暴露于含氧5%的氮气中2小时后,其ABER阈敏感性下降,Ⅰ、Ⅴ波潜伏期延长。对人的研究也表明:肺泡PO_2为7.33kPa,ABER中、长潜伏期波的潜伏期显著延长。暴露于含O_29~12%的氮气中30分钟,听觉敏感性显著下
Previous animal experiments show that hypoxia can reduce the very important cochlear electrochemical potentials to maintain normal cochlear sensitivity. When the oxygen saturation of the cat is 25 to 50%, the amplitude and the threshold sensitivity of the auditory brainstem response potential (ABER) decrease. Rats exposed to 5% oxygen in 2 hours of nitrogen, the ABER threshold sensitivity decreased Ⅰ, Ⅴ wave latency prolonged. The human study also showed that alveolar PO_2 was 7.33kPa, and the latency of long latency wave in ABER was significantly prolonged. Exposure to nitrogen containing O_29 ~ 12% for 30 minutes, sensory sensitivity significantly
其他文献
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
目的:观察决明子对高脂血模型大鼠的降脂作用,同时对主要毒靶器官组织病变进行检查,为决明子安全、合理的使用与相关质量标准的建立提供参考。方法:采用高脂饲料喂养的方法建
詹纳心情愉悦地迎来神清气爽的夏末,在办公室处理完邮件后,她拿出工作计划,检查下还有什么项目没有结算尾款。总体看来,上半年公司业务运行良好,只有陆瑜介绍的那个报社数据库项目还没有结清。 于是,詹纳拿起电话打给主编老赵。打了两三次,对方都没接,詹纳改成发短信说“赵老师,我们在做项目回访,有什么需要的后续服务么?您要有空,麻烦安排财务把尾款结算下,谢谢。” 晚上7点多,詹纳刚吃过晚饭,收到赵主编的回
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
金牛座04/20~05/20赛场幸运指数:★★★5月份的金牛座们适合与人多热络,可别落单了。月初,你会关心熟人的一些私事,有不少牵挂。中旬,作息时间变得比较自由,虽然接下来有几件
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.
目的:采用高效液相色谱法测定匹诺塞林的含量及其有关物质。方法:采用Kromasil C18色谱柱(4.6mm×150mm,5μm);以甲醇-水(用磷酸调pH至3.0)(63∶37)为流动相;流速1.0mL·min-
请下载后查看,本文暂不支持在线获取查看简介。
Please download to view, this article does not support online access to view profile.