AChE、BChE、PON-1和FOS mRNA在甲拌磷急性中毒致死大鼠脏器中的表达

目的通过对甲拌磷急性中毒致死大鼠脏器中乙酰胆碱(ACh E)、丁酰胆碱(BCh E)、对氧磷酶1(PON-1)和原癌基因蛋白(FOS)m RNA的表达研究,筛选出表达变化有统计学意义的脏器和中毒相关基因,探讨其在死亡原因推断中的价值。方法健康成年雌性SD大鼠,随机分为空白对照组和急性中毒死亡组,分别取心、肝、肺、脑和肠,提取总RNA,加入目的基因ACh E、BCh E、PON-1、FOS和内标基因β-肌动蛋白(β-actin)引物逆转录成c DNA后,利用实时荧光定量PCR技术(RT-PCR)检测各组c DNA的相对表达量的变化,并对各组结果进行统计学分析。结果肝脏中ACh E、BCh E和FOS m RNA的表达均上调(P0.05),ACh E m RNA在肺和脑中的表达均下调(P0.05)。结论肝脏和ACh E分别可以作为甲拌磷急性中毒致死的靶器官和基因表达标志,能为今后急性甲拌磷中毒的临床诊断与死亡推断提供依据。     

Cell site analysis: Changes to networks with time

Cell service areas may change over time as sites or cells are adjusted, decommissioned or introduced, and there may have been changes between the time of calls and the analysis undertaken. The manner in which survey data is used as part of an analysis is of particular relevance as the data gathered may not reflect the state of the network at the time of calls and thus potentially mislead. Overlaying “historic” data (potentially generated before the calls) with “targeted” surveys (usually generated after the calls) may enable an assessment of possible network changes, or whether additional cells may also have served at a given location at a previous time. This paper outlines a case in which there was a significant time gap between the analysis of call data records and the date on which they were generated.     

Guide to Authors

正Published by China Institute of International Studies,China International Studies is China’s first English-language journal on diplomacy and international politics for formal circulation.The magazine mainly publishes the latest research achievements of Chinese scholars and specialists on China’s diplomacy,international politics and international relations under such columns as China’s Diplomacy,International Relations,International Politics,International Security,Regional Issues and World Economy.     

Guide to Authors

正Published by China Institute of International Studies,China International Studies is China’s first English-language journal on diplomacy and international politics for formal circulation.The magazine mainly publishes the latest research achievements of Chinese scholars and specialists on China’s diplomacy,international politics and international relations under     

侦查终结的几个问题探讨

完善侦查终结的立法措施有:规定侦查阶段疑案从无制度;完善侦查总体期限规 定;规定侦查中止。     

睡眠呼吸暂停综合征患者血压结构、夜间睡眠结构的相关性

目的 运用基于时辰的心肺耦合（cardiopulmonary coupling,CPC）睡眠监测技术探讨睡眠呼吸暂停综合征（sleep apnea syndrome,SAS）患者血压结构及夜间睡眠结构的相关性。方法 纳入因睡眠问题就诊的92例患者,采用基于时辰的CPC监测仪和24 h动态血压（ambulatory blood pressure monitoring,ABPM）监测仪,进行同步监测,采集相关数据。根据CPC计算的呼吸紊乱指数（respiratory disturbance index,RDI）,将患者分为非SAS组23例,SAS组69例,分析两组间血压、夜间睡眠结构的差异;并比较不同程度SAS患者血压、夜间睡眠结构的差异;以及SAS患者RDI与夜间子、丑、寅时睡眠结构的相关性。结果 ①SAS组高血压患病率、异常血压节律发生率明显增高;且初入熟睡时间较长,熟睡时间减少,浅睡时间增多。②轻、中、重度SAS患者夜间睡眠结构差异有统计学意义（P<0.05）。③不同程度SAS患者与夜间子、丑、寅时睡眠结构存在部分差异,进一步线性回归分析发现,SAS患者RDI与子时、寅时浅睡眠时间呈正相关。结论 SAS患者高血压患病率、异常血压节律发生率高,存在夜间睡眠结构紊乱;不同程度SAS患者间血压结构差异不明显,睡眠结构的主要差异在于不稳定睡眠增多,而稳定睡眠减少,且SAS严重程度与子、寅时浅睡时间呈正相关。