酸性染料比色法测定槲寄生总生物碱的含量

目的建立槲寄生总生物碱含量测定方法,比较不同产地槲寄生总生物碱的含量。方法以硫酸阿托品为对照品,利用酸性染料比色法,在420 nm处测定槲寄生总生物碱含量。结果在25-125μg/ml范围内线性关系良好(r=0.999 7),平均回收率为102.8%(RSD=2.5%),样品在2-6 h内测定稳定。结论该方法准确、可靠,可用于槲寄生总生物碱的含量测定;经测定云南、山西、内蒙、辽宁不同产地槲寄生总生物碱含量分别为0.84,0.92,1.10,3.80 mg/g。     

粗叶悬钩子根部总生物碱的含量测定

目的 建立粗叶悬钩子根部总生物碱的含量测定方法. 方法 采用酸性染料比色法.测定粗叶悬钩子根部总生物碱的含量. 结果 浓度在6.018～108.3μg时呈现良好的线性关系.其回归方程A=1548.24X-1.0254,r=0.9995.测得粗叶悬钩子根部总生物碱含量为0.81%,平均回收率为97.82%.RSD为0.82%. 结论 本方法简便,可用于粗叶悬钩子总生物碱的含量测定.     

酸性染料比色法测定飞龙掌血提取物中总生物碱的含量

目的:建立飞龙掌血提取物中总生物碱含量测定的方法。方法:通过酸性染料比色法,利用紫外分光光度计进行飞龙掌血总生物碱的含量测定,并进行方法学考察,建立适宜的含量测定方法。结果:建立了飞龙掌血总生物碱含量测定方法;于330 nm的检测波长下,以氯化两面针碱(Nitidine Chloride)为对照品,在1.497 6～5.990 4μg/ml范围内对照品含量与吸光度呈良好的线性关系;回归方程为A=0.115 9c+0.137 6(r=0.999 7);日内精密度RSD=0.53%、日间精密度RSD=2.57%;加样回收率为100.08%,RSD=3.30%。结论:该方法回收率、稳定性、重现性、精密度良好,可用于飞龙掌血总生物碱的含量测定。     

分光光度法测定新疆乌头属植物总生物碱的含量

目的考察新疆乌头属植物总生物碱含量测定的方法。方法用分光光度法测定新疆乌头属植物中总生物碱的含量。以乌头碱为对照品,溴甲酚绿为酸性染料,缓冲溶液pH(3.0±0.1)条件下,三氯甲烷萃取45min,于415nm波长处测定其吸光度。结果乌头碱在11.76～27.44mg/L浓度范围内线性关系良好,回归方程Y=21.403 X+0.003 5,r=0.999 1,精密度良好,RSD=0.99%;样品溶液显色后4h内稳定,RSD=1.27%。本法测定的重复性良好,RSD=1.37%;平均加样回收率为100.89%,RSD=1.82%。新疆伊犁不同地区分布的白喉乌头和准噶尔乌头较多,其总生物碱含量平均值分别为0.236%和0.238%。结论分光光度法简便、准确,可用于新疆乌头属植物中总生物碱的含量测定。     

分光光度法测定伏毛铁棒锤总生物碱的含量

目的建立伏毛铁棒锤中总生物碱含量测定的方法。方法用分光光度法测定伏毛铁棒锤中总生物碱的含量。以乌头碱为对照品,溴甲酚绿为酸性染料,缓冲溶液pH=3条件下,氯仿萃取45min,于416nm波长处测定其吸光度。结果乌头碱在7.70～26.18mg/L浓度范围内线性关系良好,回归方程A=0.0318C+0.0083(r=0.9994),精密度良好,RSD=0.99%;样品溶液显色后4h内稳定,RSD=1.27%。本法测定的重复性良好,RSD=1.75%;平均加样回收率为100.89%,RSD=1.82%。结论该法简便、准确,可用于伏毛铁棒锤中总生物碱的含量测定。     

南方红豆杉总生物碱的含量测定

目的考察南方红豆杉总生物碱的含量测定方法。方法采用分光光度法测定南方红豆杉中总生物碱的含量。以乌头碱为对照品,溴甲酚绿为酸性染料,在pH为3.0±0.1的缓冲液条件下,三氯甲烷萃取,于415 nm波长处测定其吸光度。结果乌头碱在0.009 6～0.022 4 mg/mL质量浓度范围内线性关系良好,回归方程Y=48.813X-0.025 2,r=0.999 6,平均加样回收率为100.26%(RSD为2.04%),其总生物碱含量平均值为0.382%。结论分光光度法简便、准确,可用于南方红豆杉总生物碱的含量测定。     

酸性染料比色法测定鞣苦胶囊中苦参总生物碱的含量

目的建立测定鞣苦胶囊中苦参总生物碱含量的方法.方法采用溶剂萃取酸性染料比色法测定苦参总生物碱含量,以氧化苦参碱为对照品,澳麝香草酚蓝为酸性染料,在pH 7.6缓冲溶液条件下,用氯仿萃取,检测波长417 nm.结果氧化苦参碱在0.698～13.96mg/L范围内与吸光度呈良好线性关系,回归方程为Y=20.243X-1.5136,r=0.9993(n=5),氧化苦参碱的平均回收率为102.67%,RSD=0.74%(n=5).结论所建立方法简便、准确、专属性强.可用于鞣苦胶囊中苦参总生物碱含量测定.     

雷公藤总生物碱含量的测定

目的:建立雷公藤中总生物碱的含量测定方法。方法:通过实验对雷公藤总生物碱提取方法、试剂及用量选择、浸泡时间、取样量等进行确定。结果:雷公藤总生物碱含量测定方法:超声提取仪提取,取样2 g,氯水5 mL,浸泡5 h。雷公藤样品含量测定:RSD为0.075%(n=6)。结论:利用滴定法测定雷公藤总生物碱含量,快速、准确,结果可靠。     

苦参汤有效部位总生物碱含量测定方法研究

目的建立苦参汤有效部位中总生物碱含量测定方法.方法采用酸性染料比色法测定总生物碱含量:以苦参碱为对照品,溴麝香草酚蓝为酸性染料,在pH 7.6缓冲溶液条件下,用氯仿萃取.结果苦参碱在1.67～8.33 mg/L范围内与吸光度呈良好的线性关系,回归方程为C=0.076A 0.0068 r2=0.9995.苦参碱平均回收率为103.84%,RSD=0.75%(n=5).结论 5批样品测定结果表明,所建立的方法简便、准确,可用于苦参汤有效部位总生物碱含量测定.     

桃红四物缓释片中总生物碱的含量测定

目的 建立以紫外分光光度法测定桃红四物缓释片中总生物碱含量的方法 .方法 采用分光光度法,以盐酸川芎嗪为对照品,测定波长为302nm.结果 在2.4～14.4μg范围内呈良好的线性关系,r=0.9982,平均加样回收率为99.26%,RSD=2.27%.结论 该方法 准确、可靠、操作简便、稳定性好.     

Value of D-Dimers in patients with acute aortic dissection

Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P ＜ 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (＞0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P ＜0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P ＜ 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.     

Research of combined liver-kidney transplantation model in rats

Objective： To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods： SD rats served as both donors and recipients. 4℃ sodium lactate Ringer＇s was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava （IVC） inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results： Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion： This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P＜ 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P＜ 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

目的：评价使用安心颗粒对急诊经皮冠状动脉介入术（PPCI）术后生活质量的影响.方法：将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组（术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次）和对照组（仅接受基础药物治疗）.所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表（MIDAS）、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果：入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异（P＞0.05）;出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低（P＜0.05）;组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低（P＜0.05）.两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血（P＞0.05）.两组发生轻度血小板减少症的患者数比较无差异（P＞0.05）.结论：PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P＜0.01);the MAP decreased(P＜0.01)and the HR increased drastically(P＜0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center.     

Scientific principles and rigorous processes should be followed in developing clinical guidelines for therapeutic interventions of integrative medicine

A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care（~＇4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.