目的探讨慢性肾衰竭维持性血液透析患者血浆致动脉硬化指数(atherogenic index of plasma, AIP)与炎性因子及心血管疾病的相关性。方法选取2014年5月—2017年12月我院收治的108例慢性肾衰竭维持性血液透析患者为研究对象,根据AIP检查结...目的探讨慢性肾衰竭维持性血液透析患者血浆致动脉硬化指数(atherogenic index of plasma, AIP)与炎性因子及心血管疾病的相关性。方法选取2014年5月—2017年12月我院收治的108例慢性肾衰竭维持性血液透析患者为研究对象,根据AIP检查结果将其分为AIP升高组(≥0.89)58例和AIP降低组(<0.89)50例,并根据随访是否发生心血管疾病分为A组(发生心血管疾病)46例和B组(未发生心血管疾病)62例;另选取同期我院体检正常者60例作为对照组。比较所有入选者AIP、炎性因子及相关临床指标水平,分析AIP与炎性因子的相关性,分析慢性肾衰竭维持性血液透析患者心血管疾病发生的危险因素。结果 AIP升高组C-反应蛋白(CRP)、肿瘤坏死因子-ɑ(TNF-ɑ)、白细胞介素-6(IL-6)显著高于AIP降低组,差异均有统计学意义(P<0.05或P<0.01)。Spearman等级相关分析结果显示,AIP与CRP、TNF-ɑ、IL-6水平呈正相关。多因素logistic回归分析结果显示,AIP、CRP、TNF-α和IL-6水平过高为慢性肾衰竭维持性血液透析患者心血管疾病发生的独立危险因素。结论慢性肾衰竭维持性血液透析患者AIP与CRP、TNF-α和IL-6水平呈正相关,且AIP、CRP、TNF-α和IL-6水平过高为慢性肾衰竭维持性血液透析患者心血管疾病发生的独立危险因素,AIP可作为预测慢性肾衰竭维持性血液透析患者心血管疾病发生的有效指标。展开更多
We present a 397-nm frequency-doubling system with a quasi-phase-matched KTP crystal(PPKTP)which features tunable,narrow linewidth,high power,and excellent mechanical stability.Using 20-mm and 30-mm-long PPKTP crystal...We present a 397-nm frequency-doubling system with a quasi-phase-matched KTP crystal(PPKTP)which features tunable,narrow linewidth,high power,and excellent mechanical stability.Using 20-mm and 30-mm-long PPKTP crystals,we establish two experimental setups based on different external cavity parameters.By testing the beat signal of these two lasers,the linewidth for the system is measured to be less than 2.5 MHz.The maximum power of blue light can be achieved up to 40 mW.With these performance characteristics,the constructed blue laser system is useful for applications in cold atom physics and precision measurements.展开更多
文摘目的探讨慢性肾衰竭维持性血液透析患者血浆致动脉硬化指数(atherogenic index of plasma, AIP)与炎性因子及心血管疾病的相关性。方法选取2014年5月—2017年12月我院收治的108例慢性肾衰竭维持性血液透析患者为研究对象,根据AIP检查结果将其分为AIP升高组(≥0.89)58例和AIP降低组(<0.89)50例,并根据随访是否发生心血管疾病分为A组(发生心血管疾病)46例和B组(未发生心血管疾病)62例;另选取同期我院体检正常者60例作为对照组。比较所有入选者AIP、炎性因子及相关临床指标水平,分析AIP与炎性因子的相关性,分析慢性肾衰竭维持性血液透析患者心血管疾病发生的危险因素。结果 AIP升高组C-反应蛋白(CRP)、肿瘤坏死因子-ɑ(TNF-ɑ)、白细胞介素-6(IL-6)显著高于AIP降低组,差异均有统计学意义(P<0.05或P<0.01)。Spearman等级相关分析结果显示,AIP与CRP、TNF-ɑ、IL-6水平呈正相关。多因素logistic回归分析结果显示,AIP、CRP、TNF-α和IL-6水平过高为慢性肾衰竭维持性血液透析患者心血管疾病发生的独立危险因素。结论慢性肾衰竭维持性血液透析患者AIP与CRP、TNF-α和IL-6水平呈正相关,且AIP、CRP、TNF-α和IL-6水平过高为慢性肾衰竭维持性血液透析患者心血管疾病发生的独立危险因素,AIP可作为预测慢性肾衰竭维持性血液透析患者心血管疾病发生的有效指标。
基金the National Natural Science Foundation of China under Grant Nos 61027016,61078026,10874008 and 10934010the National Basic Research Program of China under Grant No 2011CB921501.
文摘We present a 397-nm frequency-doubling system with a quasi-phase-matched KTP crystal(PPKTP)which features tunable,narrow linewidth,high power,and excellent mechanical stability.Using 20-mm and 30-mm-long PPKTP crystals,we establish two experimental setups based on different external cavity parameters.By testing the beat signal of these two lasers,the linewidth for the system is measured to be less than 2.5 MHz.The maximum power of blue light can be achieved up to 40 mW.With these performance characteristics,the constructed blue laser system is useful for applications in cold atom physics and precision measurements.
