目的探讨经皮肾镜（percutaneous nephrolithotomy,PCNL）术后并发感染性休克、多器官功能障碍综合征（multiple organ dysfunction syndrone,MODS）的预警指标及防治对策。方法选取2004年1月~2014年12月在广西医科大学第八附属医院治...目的探讨经皮肾镜（percutaneous nephrolithotomy,PCNL）术后并发感染性休克、多器官功能障碍综合征（multiple organ dysfunction syndrone,MODS）的预警指标及防治对策。方法选取2004年1月~2014年12月在广西医科大学第八附属医院治疗的经皮肾镜（PCNL）术后并发感染性休克及多器官功能障碍综合征（MODS）患者30例为观察组,同时选取PCNL术后未发生MODS患者35例作为对照组,检测两组患者血小板（PLT）、D-二聚体（DD）、血清白蛋白（ALB）、胆碱酯酶（CHE）及肌钙蛋白T（TNT）水平。结果观察组患者入院24 h PLT、CHE、ALB分别为（103.25±35.27）×109/L、（2313.38±231.65）U/L和（22.43±5.38）g/L,明显低于对照组,而TNT和DD为（0.67±0.17）ng/m L和（2.56±0.93）mg/L,明显高于对照组,差异均有统计学意义（P〈0.05）;观察组患者中死亡患者PLT、CHE、ALB分别为（87.32±21.27）×109/L、（2109.26±219.41）U/L和（19.38±4.28）g/L,明显低于未死亡患者,而TNT和DD为（0.78±0.13）ng/ml和（3.04±0.77）mg/L,明显高于未死亡患者,差异均有统计学意义（P〈0.05）;器官功能障碍数为2个的患者病死率为41.67%,器官功能障碍数为3个的患者病死率为44.44%,器官功能障碍数≥4个的患者病死率为100%。结论血小板、D-二聚体、血清白蛋白、胆碱酯酶、肌钙蛋白、器官功能障碍数目可作为经皮肾镜术后并发感染性休克及多器官功能障碍综合征患者的预警指标。展开更多
Seed aging characteristics of rice was investigated in this study. Seeds of 34 japonica rice (O-ryza sativa subsp. japonica) varieties were held at 451 constant temperature. Changes in seed viability and seed vigor du...Seed aging characteristics of rice was investigated in this study. Seeds of 34 japonica rice (O-ryza sativa subsp. japonica) varieties were held at 451 constant temperature. Changes in seed viability and seed vigor during aging process were measured to study seed viability-losing characteristic and to determine warning index for seed viability loss. As a result, seed viability survival curves were obtained across different rice accessions at 45℃ constant temperature. The curves appeared to be contra-sigmoid survival curves. The loss of seed viability in the aging process consisted of two phases. The first phase took a long duration, in which the viability of vigorous seeds declined slowly. In the second phase, seed viability declined rapidly. It was obvious that seed viability declined inconsistently during storage. It also showed that seed germination was prolonged and the seedling was significantly weakened before the coming of the rapid declining phase of seed viability. These two parameters could be used to indicate seed quality during storage. The rate of compatibility of tests (RCT), coefficient of variation (CV), vigor of seedling, the day the seeds start to germinate could be used as warning indexes to indicate overall quality of a mass of accessions. These warning indexes could also be used in monitoring the viability of seeds stored in the seed genebank.展开更多
目的探讨青年军人运动疲劳对心率变异性(heart rate variability,HRV)和肌电的影响及其预警指标。方法选择64名青年军人为研究对象,并随机分为对照组和实验组,各32人。运用疲劳评定量表(fatigue assessment instrument,FAI)、SPIRIT-2/...目的探讨青年军人运动疲劳对心率变异性(heart rate variability,HRV)和肌电的影响及其预警指标。方法选择64名青年军人为研究对象,并随机分为对照组和实验组,各32人。运用疲劳评定量表(fatigue assessment instrument,FAI)、SPIRIT-2/4/8多通道生物反馈仪对所有对象进行HRV和肌电测评。结果负重跑步前,两组HRV和肌电变化比较差异无统计学意义(P>0.05)。负重跑步后,实验组较负重跑步前全部正常NN间期的标准差(standard deviation of NN intervals,SDNN)、全程每5 minNN间期平均值的标准差(standard deviation of the averages of NN intervals in all 5 min segments of the entire recording,SDANN)、0.0033～0.04 Hz频带范围的极低频(very low frequency, VLF)功率、0.04～0.15 Hz功率频带范围的低频(low frequency, LF)功率与0.15～0.4 Hz频带范围的高频(high frequency, HF)功率的比值(LF/HF)变化差异均具有统计学意义(t值分别为3.997,4.098,3.420,-3.604,P均<0.01);对照组负重跑步前后,HRV和肌电变化差异无统计学意义(P>0.05)。实验组与对照组在SDNN、全程相邻NN间期之差的均方根值(root mean square of successive differences, RMSSD)、全程相邻NN间期之差的标准差(standard deviation of difference between adjacent NN intervals, SDSD)、SDANN、VLF、5 min所有的功率谱密度(total power spectral density, TP)和LF/HF差异均具有统计学意义(t值分别为-6.973,-3.095,-4.921,-6.166,-4.498,-4.395,4.812,P均<0.01)。结论运动疲劳对肌电没有影响,对HRV有影响。HRV的SDNN、SDANN、VLF、LF/HF可以作为预警运动疲劳的指标。展开更多
文摘目的探讨经皮肾镜（percutaneous nephrolithotomy,PCNL）术后并发感染性休克、多器官功能障碍综合征（multiple organ dysfunction syndrone,MODS）的预警指标及防治对策。方法选取2004年1月~2014年12月在广西医科大学第八附属医院治疗的经皮肾镜（PCNL）术后并发感染性休克及多器官功能障碍综合征（MODS）患者30例为观察组,同时选取PCNL术后未发生MODS患者35例作为对照组,检测两组患者血小板（PLT）、D-二聚体（DD）、血清白蛋白（ALB）、胆碱酯酶（CHE）及肌钙蛋白T（TNT）水平。结果观察组患者入院24 h PLT、CHE、ALB分别为（103.25±35.27）×109/L、（2313.38±231.65）U/L和（22.43±5.38）g/L,明显低于对照组,而TNT和DD为（0.67±0.17）ng/m L和（2.56±0.93）mg/L,明显高于对照组,差异均有统计学意义（P〈0.05）;观察组患者中死亡患者PLT、CHE、ALB分别为（87.32±21.27）×109/L、（2109.26±219.41）U/L和（19.38±4.28）g/L,明显低于未死亡患者,而TNT和DD为（0.78±0.13）ng/ml和（3.04±0.77）mg/L,明显高于未死亡患者,差异均有统计学意义（P〈0.05）;器官功能障碍数为2个的患者病死率为41.67%,器官功能障碍数为3个的患者病死率为44.44%,器官功能障碍数≥4个的患者病死率为100%。结论血小板、D-二聚体、血清白蛋白、胆碱酯酶、肌钙蛋白、器官功能障碍数目可作为经皮肾镜术后并发感染性休克及多器官功能障碍综合征患者的预警指标。
文摘Seed aging characteristics of rice was investigated in this study. Seeds of 34 japonica rice (O-ryza sativa subsp. japonica) varieties were held at 451 constant temperature. Changes in seed viability and seed vigor during aging process were measured to study seed viability-losing characteristic and to determine warning index for seed viability loss. As a result, seed viability survival curves were obtained across different rice accessions at 45℃ constant temperature. The curves appeared to be contra-sigmoid survival curves. The loss of seed viability in the aging process consisted of two phases. The first phase took a long duration, in which the viability of vigorous seeds declined slowly. In the second phase, seed viability declined rapidly. It was obvious that seed viability declined inconsistently during storage. It also showed that seed germination was prolonged and the seedling was significantly weakened before the coming of the rapid declining phase of seed viability. These two parameters could be used to indicate seed quality during storage. The rate of compatibility of tests (RCT), coefficient of variation (CV), vigor of seedling, the day the seeds start to germinate could be used as warning indexes to indicate overall quality of a mass of accessions. These warning indexes could also be used in monitoring the viability of seeds stored in the seed genebank.
文摘目的探讨青年军人运动疲劳对心率变异性(heart rate variability,HRV)和肌电的影响及其预警指标。方法选择64名青年军人为研究对象,并随机分为对照组和实验组,各32人。运用疲劳评定量表(fatigue assessment instrument,FAI)、SPIRIT-2/4/8多通道生物反馈仪对所有对象进行HRV和肌电测评。结果负重跑步前,两组HRV和肌电变化比较差异无统计学意义(P>0.05)。负重跑步后,实验组较负重跑步前全部正常NN间期的标准差(standard deviation of NN intervals,SDNN)、全程每5 minNN间期平均值的标准差(standard deviation of the averages of NN intervals in all 5 min segments of the entire recording,SDANN)、0.0033～0.04 Hz频带范围的极低频(very low frequency, VLF)功率、0.04～0.15 Hz功率频带范围的低频(low frequency, LF)功率与0.15～0.4 Hz频带范围的高频(high frequency, HF)功率的比值(LF/HF)变化差异均具有统计学意义(t值分别为3.997,4.098,3.420,-3.604,P均<0.01);对照组负重跑步前后,HRV和肌电变化差异无统计学意义(P>0.05)。实验组与对照组在SDNN、全程相邻NN间期之差的均方根值(root mean square of successive differences, RMSSD)、全程相邻NN间期之差的标准差(standard deviation of difference between adjacent NN intervals, SDSD)、SDANN、VLF、5 min所有的功率谱密度(total power spectral density, TP)和LF/HF差异均具有统计学意义(t值分别为-6.973,-3.095,-4.921,-6.166,-4.498,-4.395,4.812,P均<0.01)。结论运动疲劳对肌电没有影响,对HRV有影响。HRV的SDNN、SDANN、VLF、LF/HF可以作为预警运动疲劳的指标。
