HPLC法测定阿图什市无花果叶中补骨脂素及佛手苷内酯的含量

目的：建立无花果时中补骨脂素和佛手柑内酯的含量测定方法。方法：采用反相高效液相色谱法测定补骨脂素和佛手柑内酯的含量,色谱柱kromasil C18 ODS（150m×4．6mm,5μm）,流动相为甲醇-水（65：35）,测定波长为222m,流速1mL·m^-1,进样量4μl。结果：补骨脂素与佛手柑内酯线性良好,回归方程分别为：补骨脂素y=52850644．3891x＋41975．0624,r=0．9991,线性范围：（0.01639-0．1639）μg;佛手柑内酯y=69589020．2703x＋31347．1000,r=0．9994,线性范围：（0．00296-0．0296）μg。平均回收率,补骨脂素为97.8％,RSD1．25％;佛手柑内酯为95．7％,RSD4,75％。结论：本法简便、准确、稳定,重复性好,可用于测定无花果叶中补骨脂素和佛手柑内酯的含量。     

HPLC法测定香连片中木香烃内脂和去氢木香内脂含量

目的：建立高效液相色谱法测定香连片中木香烃内脂和去氢木香内脂的含量。方法：采用高效液相色谱法,色谱柱：KromasilCl8色谱枉（150mm×4．6mm,5μm）;流动相：乙腈一水（58：42）;检测波长：223nm;流速：1．0mL·minl-1;柱温：28℃。结果：木香烃内脂的线性范围为0．1212-1．212μg,去氢木香内酯的线性范围为0．141-1．41μg。平均回收率分别为97．9％,98．3％,相对标准偏差RSD分别为1．3％,2．3％（n=9）。结论：该方法简单、快速、准确,可用于香连片的质量控制。     

当归的指纹图谱和Q-TOF-MS质谱联用研究

目的：用高效液相色谱法建立当归药材的指纹图谱,为其品质控制提供依据。方法：采用Phenomenex luna C18色谱柱（4.6 mm×250 mm,5μm）;乙腈-0.5%醋酸水溶液为流动相,梯度洗脱,检测波长为270 nm,流速1 ml/min。结果：建立了当归药材的HPLC指纹图谱。HPLC-MS鉴定出阿魏酸,洋川芎内酯,川芎内酯A,丁基苯酞,E-藁本内酯,Z-藁本内酯,E-丁烯基酞内酯和Z-丁烯基苯酞共8个化学成分。结论：采用该法可为控制当归药材的内在质量提供依据。     

高效液相色谱法测定穿王消炎胶囊中脱水穿心莲内酯的含量

目的：建立高效液相色谱法测定穿王消炎胶囊中脱水穿心莲内酯含量的方法。方法：色谱柱为Phenomenex ODS C18（150mm×4．6mm，5μm）；流动相为甲醇-水（55：45）；流速为1ml／min；检测波长为250nm；柱温30℃。结果：脱水穿心莲内酯在0．0728-0．7280μg范围内具有良好的线性关系，r=0．99995；平均回收率为100．02％，RSD为1．84％。结论：本法准确可靠，简便迅速，适用于测定穿王消炎胶囊中脱水穿心莲内酯的含量。     

含川芎、当归中成药中藁本内酯的检测分析

目的建立含当归、川芎中成药中藁本内酯的薄层色谱（TLC）、高效液相色谱（HPLC）检测分析方法。方法选择常用16种含当归、川芎的中成药,系统建立其藁本内酯TLC定性检测以及HPLC定量分析方法,对各中成药中藁本内酯进行检测分析。结果建立了中成药中藁本内酯TLC定性检测和HPLC定量分析方法,测定了各中成药,结果准确可靠。结论建立的藁本内酯TLC和HPLC方法简便,准确,重现性好,可用于含当归、川芎中成药的检测分析。     

穿黄消炎胶囊的质量标准研究

目的：建立穿黄消炎胶囊的质量标准。方法：采用薄层色谱法对穿黄消炎胶囊中穿心莲和一枝黄花进行定性鉴别：采用高效液相色谱法测定穿心莲内酯和脱水穿心莲内酯的含量。结果：薄层鉴别色谱特征明显,专属性强：穿心莲内酯在0．2164-1．9476μg内线性关系良好fr=0．9999）,加样回收率为97．90%-99．76％,RSD=0．76％;脱水穿心莲内酯在0．1872-1．6848μg内线性关系良好（r=0．9999）,加样回收率为97．65％-99．78％,RSD=0．82％。结论：该方法灵敏、准确,可作为穿黄消炎胶囊的质量控制方法。     

高效液相色谱内标法测定当归滴丸中藁本内酯的含量

目的建立当归滴丸中藁本内酯的含量测定方法。方法采用高效液相色谱法测定当归滴丸中藁本内酯的含量,色谱柱为Thermo ODS-C18(4.6 mm×250 mm,5μm),流动相为甲醇∶水(冰乙酸调p H至4)=55∶45,流速为1 m L/min,检测波长325 nm,柱温25℃。结果藁本内酯在39.58~395.80μg/m L范围内呈良好的线性关系,回归方程为Y=0.0316X-0.1482,r=0.9996,平均回收率为101.50%,藁本内酯含量为0.524%。结论该方法准确、简便、可行、精密度高、重复性良好,可作为当归滴丸中藁本内酯的定量测定方法。     

木香CO2超临界萃取物中木香烃内酯、去氢木香内酯的鉴别与含量测定

用薄层色谱法（TLC）,以ψ（石油醚：乙酸乙酯：苯）＝70：5：15为展开剂,质量分数为5％香草醛硫酸为显色剂对木香超临界萃取物中的木香烃内酯与去氢木香内酯进行鉴别;并建立高效液相色谱法同时测定木香烃内酯与去氢木香内酯的含量法,色谱柱为Merck Lichrocart C18;流动相为ψ（甲醇：水）＝70：30;检测波长为225nm。测得木香烃内酯和去氢木香内酯的线性范围分别为0．4178－2．0888μg和0．3950－1．9752ug。回收率分别为100．3％和99．4％,方法简便,灵敏,快速。     

当归根中阿魏酸和藁本内酯对海拔的响应研究

目的通过研究当归中阿魏酸和藁本内酯在高（2 780 m）、中（2 570 m）、低（2 360 m）3个海拔梯度下的变化,研究当归品质对海拔的响应。方法在田间试验基础上,采用高效液相色谱（HPLC）法测定阿魏酸含量,气相色谱-质谱联用仪（GC-MS）分析挥发油化学成分及相对含量。结果当归根中阿魏酸含量、挥发油收率及藁本内酯含量均随海拔升高而增加,高海拔阿魏酸含量显著高于低海拔（P〈0.05）;3个海拔藁本内酯与其异构体总量分别为58.99%,64.28%和65.29%,高海拔与低海拔间差异有统计意义（P〈0.05）。结论在一定的海拔范围内升高种植海拔有利于当归品质的形成。     

HPLC法测定复方穿心莲片中脱水穿心莲内酯的含量

目的建立高效液相色谱法测定复方穿心莲片中脱水穿心莲内酯的含量。方法色谱柱：ChromasilC18（5μm,250×4．6mm）;流动相：甲醇：水（60：40）;流速：1ml／min;柱温：30℃;检测波长：250nm。结果脱水穿心莲内酯进样量在0．194—1．94μg范围内与峰面积线性关系良好（r=0．9998）,平均回收率为99．4％,RSD为1．41％。结论本法灵敏度高、操作简便、结果准确,可作为复方穿心莲片的含量测定方法。     

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.