薄层扫描法测定妇肤康搽剂中苦参碱的含量

目的:建立妇肤康搽剂的含量测定方法.方法:以硅胶G为薄层吸附剂,甲苯-丙酮-醋酸乙酯-浓氨试液(2∶3∶4∶0.2)为展开剂,喷以稀碘化铋钾试液,再喷以少量5%亚硝酸钠溶液至斑点显色清晰,在λs＝480 nm,λR=650 nm波长处扫描.结果:苦参碱在0.504 4～4.035 μg(n=6)范围内线性关系良好(r=...     

薄层扫描法测定肾舒冲剂中人参皂甙R_(g1)的含量

目的　测定肾舒冲剂中人参皂甙Rg1的含量。方法　薄层扫描法。色谱条件为硅胶G板 ,展开剂为氯仿 -醋酸乙酯 -甲醇 -水 ( 65∶10∶35∶10 )下层溶液 ,测定波长λs=52 5nm ,参比波长为λR=70 0nm。结果　r =0 9996,线性范围 1～ 5μg精密度 1 95%,含量在 0 5mg以上。 结论　方法灵敏、快速准确 ,可供本品质量控制     

薄层扫描法测定还五溶栓胶囊中黄芪甲苷的含量

目的 :测定还五溶栓胶囊中黄芪甲苷的含量。方法 :硅胶G薄层板 ,氯仿 -甲醇 -水 (13∶6∶2 ) 10℃以下放置过夜的下层溶液展开 ,λS=5 30nm ,λR=70 0nm。结果 :线性范围 1.92～ 9.6 0 μg ,97.4 3% ,RSD =3.4 9%。 结论 :该方法可用于还五溶栓胶囊中黄芪甲苷的含量测定     

退白汤中补骨脂素和异补骨脂素含量测定方法研究

目的:建立双波长薄层扫描法测定退白汤中补骨脂素和异补骨脂素含量的方法。方法:选用补骨脂素λS=272nm,λR=305nm;异补骨脂素λS=275nm,λR=310nm;以甲苯-乙酸乙酯-甲酸(15:2:1)为展开剂,并在365nm紫外灯下检视。结果:补骨脂素在0.27~1.62μg呈良好的线性关系(γ=0.9987),平均回收率99.46%,RSD=1.34%(n=5);异补骨脂素在0.25~1.50μg呈良好的线性关系(γ=0.9992),平均回收率99.60%,RSD=1.37%(n=5)。结论:本法简便、快捷,可用于退白汤中补骨脂素和异补骨脂素的含量测定。     

疏肝开胃颗粒质量标准研究

目的:研究制定疏肝开胃颗粒的质量标准。方法:对柴胡进行薄层色谱鉴别,用薄层扫描法测定山楂中熊果酸的含量,色谱条件:硅胶G板,展开剂为环己烷-氯仿-乙酸乙酯-甲酸(20∶5∶8∶0.1),10%硫酸乙醇溶液为显色剂,在105℃加热10min显色,扫描波长λs=520nm,参比波长λR=700nm。结果:薄层色谱鉴别斑点清晰,阴性对照无干扰。熊果酸在0.86～6.88μg范围内具有良好的线性关系,r=0.9997,平均回收率为99.0%,RSD=1.69%。结论:本方法简便可行,专属性强、重复性良好,可以用于疏肝开胃颗粒的质量控制。     

薄层扫描法测定保元精口服液中黄芪甲苷的含量

目的:测定保元精口服液中黄芪甲苷的含量。方法:采用薄层扫描法。硅胶G薄层板,氯仿—甲醇—水(13∶6∶2)10℃以下放置过夜的下层溶液展开;λS=530nm,λR=700nm。结果:线性范围1.9μg～9.5μg,平均回收率99.88%,RSD=2.94%。结论:该方法可用于保元精口服液中黄芪甲苷含量的测定。     

薄层扫描法测定尔胃康颗粒中人参皂苷Rg1的含量

目的建立测定尔胃康颗粒中人参皂苷Rg1含量的方法.方法对照品溶液与供试品溶液分别点于同一硅胶G薄层板上,以氯仿-醋酸乙酯-甲醇-水(2:4:2;1)放置后的下层液为展开剂,展开,取出,晾干,喷以10%硫酸乙醇溶液,在105℃加热至斑点显色清晰,用同样大小的玻板密封,用薄层扫描仪在λs=530nm,λR=700nm下测定.结果人参皂苷Rg1在1.13～6.78μg范围内线性关系良好,r=0.9991,本方法的平均回收率为97.3%,RSD为1.69%.结论该方法灵敏、准确、专属性强、重现性好,可用于本制剂的含量测定及质量控制.     

薄层扫描法测定肠尔康胶囊中靛玉红的含量

目的:通过测定肠尔康胶囊中靛玉红的含量,建立肠尔康胶囊的含量测定方法。方法:双波长扫描法。测定条件:硅胶G预制板,甲苯-氯仿-丙酮(5∶4∶1)为展开剂,λS=540nm,λR=700nm。结果:回归方程为A=109.74C-6.479,r=0.9997,加样回收率为96.29%,精密度试验RSD为1.57%。     

薄层扫描法测定人麻痛痹丸中士的宁的含量

目的:建立一种薄层扫描法测定人麻痛痹丸中士的宁的含量。方法:采用甲苯-丙酮-乙醇-浓氨试液(16∶12∶2∶7)10℃以下放置30 m in以上的上层溶液作为展开剂,测定波长λ=259nm,薄层扫描。结果:士的宁在0.5~4.0μg范围内线性良好,相关系数r=0.998 6,平均回收率为98.48%,RSD=0.93%。结论:本法快捷、简便、准确,可用于该制剂质量的控制。     

不同品种天花粉样品中瓜氨酸的含量测定

目的 比较不同品种天花粉样品中瓜氨酸的含量.方法 采用双波长薄层扫描法测定天花粉中瓜氨酸的含量.以正丁醇-无水乙醇-冰醋酸-水(8∶2∶5∶3)为展开剂,以1%茚三酮试液显色,于扫描波长λS=500 nm、背景波长λR=700 nm下进行扫描测定.结果 不同品种天花粉样品瓜氨酸含量有明显差异.4个样品中瓜氨酸的含量从高到低顺序为:6号雌性样品＞6号雄性样品＞4号雄性样品＞亳州本地样品.结论 雌性样品中瓜氨酸的含量较雄性样品高,但是其根较为细小、产量低而其地上部分瓜蒌子具有较好的效益,综合其经济价值及质量分析,6号雄性样品质量较优.     

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.