乳结平颗粒质量控制方法研究

目的 制定乳结平颗粒(淫羊藿、赤芍等)质量控制方法.方法 采用薄层色谱法对处方中的淫羊藿、赤芍进行定性鉴别;采用高效液相色谱法对赤芍中的芍药苷进行含量测定.结果 芍药苷在0.592～4.998μg线形关系良好,r=0.999 8,平均回收率为99.15%,相对标准差为2.55%.结论 该方法可准确地进行定性鉴别和定量分析,并能有效地控制其制剂的质量.     

茵芩合剂质量标准研究

目的 建立茵芩合剂的质量控制方法.方法 采用微乳薄层色谱法对制剂中的茵陈、黄芩和大黄进行鉴别;采用高效液相色谱法同时测定绿原酸、咖啡酸、黄芩苷和黄芩素的含量,色谱柱为Diamonsil C18(2)(250 mm×4.6 mm,5μm),流动相为乙腈-0.25％磷酸溶液,梯度洗脱,流速为1.0 ml/min,检测波长为...     

妇得乐颗粒的质量标准研究

目的:建立妇得乐颗粒的质量标准。方法:采用薄层色谱法对妇得乐颗粒中的丹参、赤芍进行鉴别;采用高效液相色谱法测定其中丹参酮IIA的含量。结果:在薄层色谱中检出丹参、赤芍;丹参酮IIA在0.039μg～0.401μg范围内线性关系良好,r=0.9993,平均回收率97.33%,RSD为1.67%。结论:所建立的方法可准确地进行定性、定量检测,可用于该制剂的质量控制。     

复方抗结核合剂质量标准的建立

目的 建立复方抗结核合剂的质量标准.方法 采用薄层色谱法对方中猫爪草、百部、茵陈和黄精药材进行了色谱鉴别;采用高效液相法测定绿原酸的含量.结果 薄层鉴别的色谱斑点清晰,阴性对照无干扰,绿原酸的含量测定平均回,收率为98.11%,RSD(n=6)为0.91%,在0.4～1.4μg范围内呈线性关系相关系数.结论 研究的方法可有效地控制复方抗结核合剂的质量.     

安中解毒颗粒质量标准的研究

目的:建立安中解毒颗粒的质量标准。方法:采用薄层色谱法鉴别安中解毒颗粒中金银花、板蓝根和连翘3味中药;采用高效液相色谱法测定安中解毒颗粒中绿原酸的含量。结果:金银花、板蓝根、连翘能被很好地鉴别;绿原酸的线性范围为0.47～2.35mg(r=0.9999),平均加样回收率为98.86%,RSD为1.29%(n=5)。结论:此方法简便、准确、重现性好,可用于该制剂的质量控制。     

肝康颗粒的薄层色谱鉴别

目的 对肝康颗粒中的茵陈、甘草、柴胡、金钱草进行鉴则.方法 采用薄层色谱法检测.结果 建立了一种简便、灵敏、可靠的薄层色谱(TLC)鉴别方法.结论 此方法专属性强,重现性好,可为该制剂质量控制的方法选择提供参考.     

鼻炎合剂的定性定量分析

目的对鼻炎合剂进行定性定量分析.方法采用薄层色谱法对鼻炎合剂中桔梗、桑叶、辛夷进行定性鉴别;以绿原酸为指标成分,采用高效液相色谱法对其进行定量分析.结果各薄层定性色谱中,在与对照药材相应的位置上显相同颜色的斑点,阴性对照未见干扰;绿原酸在0.1072~0.8936μg范围内呈现良好的线性关系,r≈0.999997,平均加样回收率为99.05%.结论定性定量方法简单,重复性好,结果准确,可用于鼻炎合剂的质量控制.     

舒康栓的制备及质量标准

目的 建立舒康栓的制备方法及质量标准.方法 采用薄层色谱法对处方中山楂核精进行定性鉴别;用气相色谱法测定制剂中愈创木酚含量.结果 薄层色谱法专属性强;愈创木酚平均回收率为97.41%,RSD为1.52%.结论 气相色谱法简便、准确,重复性好,可作为舒康栓的质量控制标准.     

通便灵胶囊质量标准的研究

目的:建立通便灵胶囊的质量标准。方法:以番泻叶、当归为对照药材进行薄层鉴别,采用高效液相色谱法进行含量测定。结果:大黄酸的平均加样回收率为97.16%,RSD=2.23%(n=6)。薄层色谱斑点清晰,阴性对照无干扰,专属性强。结论:该方法结果准确,重复性好,可作为该制剂的质量控制指标。     

产后益母丸质量标准研究

目的 建立产后益母丸质量控制方法。方法 采用薄层色谱法对制剂中的益母草、当归、川芎、赤芍、延胡索进行定性鉴别;采用高效液相色谱法测定制剂中芍药苷的含量。结果 薄层色谱显色清晰且阴性对照无干扰。芍药苷在0.012 88～0.515 2 mg·mL^-1内呈良好的线性关系,平均回收率为102.0%,RSD=1.6%。结论 本法操作简便,结果准确、重复性好,可用于产后益母丸的质量控制。     

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.     

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.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

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.