Effect of magnesium citrate and desmodium styracifolium on crystal growth of calcium oxalate

研究了水溶液体系中广金钱草和柠檬酸镁存在下对草酸钙结晶及晶体生长的影响.XRD谱图分析表明,广金钱草对草酸钙晶型基本无影响,柠檬酸镁浓度较高时可诱导二水合草酸钙的形成;SEM图像分析表明,广金钱草可抑制大颗粒草酸钙晶体的形成,从而产生大量的小尺寸草酸钙晶体,柠檬酸镁可改变草酸钙晶体的形貌,使其形成片状或层状的晶体.实验结果表明,广金钱草和柠檬酸镁的存在或者有利于阻止草酸钙晶体变大形成尿石,或者诱导二水合草酸钙(COD)的形成.该结论可为临床上治疗CaOxa结石提供参考.In the presence of desmodium styracifolium and magnesium citrate, their influence on calcium oxalate crystallization and crystal growth in the aqueous solution system is studied respectively. XRD spectra analysis shows that desmodium styracifolium has little effects on the crystal form of calcium oxalate, and the magnesium citrate can induce the formation of two hydrated calcium oxalate when its concentration is in a high level. SEM image analysis shows that desmodium styracifolium can inhibit the formation of large granular calcium oxalate crystal and results in generating a large number of calcium oxalate crystals with small size. Magnesium citrate may change the morphology of calcium oxalate crystal, and make them form lamellar or layered crystals. These experimental results show that the presence of desmodium styracifolium and magnesium citrate can prevent calcium oxalate crystals to form bigger urinary stones, or induce the formation of two hydrated calcium oxalate. The conclusion can provide a reference for clinical treatment of CaOxa calculi.甘肃省科技支撑计划项目(1204NKCA107);甘肃省工程技术研究中心项目(1106NTGA013);兰州交通大学“青蓝”人才工程基金资助项目;金川公司预研基金资助项目(JCYY2013008

Effects of Lingguibafa-based Acupuncture on the Level of Blood Lactic Acid after Exhaustive Exercise

目的:观察灵龟八法针刺消除台阶运动疲劳后血乳酸的作用效果。方法:40名体育专业健康男性大学生随机分为灵龟八法照海开闭穴组(简称照海组)、灵龟八法申脉闭开穴组(简称申脉组)、辩证取穴组(简称三阴交组)和对照组4组,每组10人。实验分两个阶段:第一阶段选在照海穴开穴时间段进行。4组受试者进行台阶运动至疲劳后平卧,照海组、申脉组和三阴交组分别进行针刺,照海组选取双侧照海穴、列缺穴,申脉组选取双侧申脉穴、后溪穴,三阴交组选取双侧三阴交穴、合谷穴。留针30分钟,每10分钟行捻转补法1次。对照组平卧床上,不进行任何恢复干预。第二阶段:第一阶段实验结束24小时后,在申脉穴开穴时间段进行,方法同第一阶段。测定受试者两个阶段台阶运动前、运动停止30分钟后血乳酸值。结果:(1)第一阶段台阶运动停止30分钟后,照海组、申脉组和对照组的血乳酸值显著高于运动前(P0.05)。(2)第一阶段台阶运动24小时后,照海组和三阴交组血乳酸值显著低于运动前(P0.05);照海组和对照组之间比较有显著性差异(P0.05)。结论:灵龟八法针刺和辩证取穴针刺均有促进台阶运动后乳酸清除、降低血乳酸浓度的作用。Objective To observe the effects of Lingguibafa-based acupuncture blood lactic acid （BLA） after exhaustive step test. Methods 40 healthy male students were divided randomly and equally into 4 groups：group Zhaohai （ZH）,group Sh Sanyi-jiao（SYJ） and control group（C）. At first,all examinates began exhaustive step the opening of Zhaohai point according to Lingguibafa on elimination of majoring in sports enmai （SM）, group test precisely from ,then received acupuncture at Zhaohai and Lieque points for group ZH, Shenmai and Houxi points for group SM, and Sanyi-jiao and Hegu points for group SYJ. Needles were retained for 30 minutes. Examinat.es in group C received no acupuncture after exhaustive step test. 24 hours later,second exhaustive step test repeated again precisely from the opening of Shenmai point, and the acupuncture process was the same as the first test. BLA was measured before and 30 minutes after the step test. Results （1）BLAs after 30 minutes of the first step test were higher in groups ZH（P 〈 0.05） ,SM（P 〈 0.05） and C（P 〈 0.01） than that before the test（P 〈 0.05, P 〈 0.01 ）, except in group SYJ （P 〉 0.05 ）. （2）The B I_~s of groups ZH and SYJ were significantly lower than those before the second step test （P 〈 0.01 and P 〈 0.05 ,respectively） ,and BLAs of groups SM and C remained unchanged （P 〉 0.05）. There was significant difference in BLA between groups ZH and C after the second step test （P 〈 0.05）.（3）The BLAs of groups ZH,SM and C were significantly higher than that before the second step test（P 〈 0.01 ） ,except that of group SYJ（P 〉 0.05）. Conclusion Lingguibafa-based acupuncture can eliminate the accumulation of lactic acid after exhaustive exercise

Research on Stucture of the Teaching patterns of Anatomia Course

通过问卷调查法、文献分析法对高校体育专业理论课程传统教学模式之弊端进行了分析,并以运动解剖学课程为突破口,提出了构建高校体育专业理论课程新教学模式(主动.探究.合作式教学模式)的理论指导思想、具体操作模式及特征。Through documents , rational analysis and logical thinking , this paper analyses the malpractices of the t raditional teaching pat tern in college PE majo rs' theoretical courses .As a breach by using the course “Human Anatomy” , it suggests the theoretical guiding ideology , specific operation mode and the characteristics of this new pattern -the “initiative , exploratory and cooperative” teaching pattern .广西区高等教育教学改革工程“十一五”第四批立项项目(课题编号:2008B034,2008年);2008年广西区高校精品课程项