HPLC法测定山蜡梅中东莨菪素、槲皮素、夏蜡梅碱

目的 建立高效液相色谱法同时测定山蜡梅中东莨菪素、槲皮素、夏蜡梅碱量的方法。方法 Hypersil ODS柱(250 mm×4.6 mm,25 μm);流动相为甲醇-水,梯度洗脱;检测波长为348、376、222 nm;体积流量为1 mL/min。结果 山蜡梅叶中东莨菪素、槲皮素、夏蜡梅碱达到基线分离且线性关系良好,线性范围为10.02～50.10、10.04～50.20、10.04～50.20 μg/mL,平均加样回收率分别为97.13%、96.68%、97.22%。结论 本方法用于山蜡梅 中东莨菪素、槲皮素、夏蜡梅碱的定量测定,具有快捷、简便、准确的特点,能够多成分综合评价该药材。     

酸性染料比色法测定颠胃酸口服液中山莨菪碱含量

目的:建立颠胃酸口服液中山莨菪碱含量的测定方法。方法:以山莨菪碱为对照品,溴甲酚绿溶液为染色剂,利用染色剂在一定pH中与莨菪碱定量结合成有色络合物的原理,应用分光光度仪检测其含量。结果:山莨菪碱在70.0～350.0μg/mL范围内线性关系良好,A=0.0016 C+0.0201(r=0.9992),回收率98.3%,RSD=1.48%(n=6)。结论:所建方法便捷、重现性好,适用于颠胃酸口服液中山莨菪碱含量的测定。     

HPLC法测定不同市售荷叶药材中4种生物碱类成分的含量

目的 建立测定荷叶药材中4种生物碱类成分2-羟基-1-甲氧基阿朴啡、原荷叶碱、荷叶碱和莲碱含量的高效液相色谱方法,并测定不同市售荷叶药材中4种成分的含量.方法 采用HypersilC18柱(250 mm×4.6 mm,5 μm),以乙腈-0.1%三乙胺水溶液为流动相,梯度洗脱,流速1.0 mL/min,柱温35 ℃,检测波长270 nm.结果 2-羟基-1-甲氧基阿朴啡、原荷叶碱、荷叶碱和莲碱的线性范围分别为0.109 6～0.657 6μg(r=0.999 5),0.021 0～0.126 0μg(r=0.999 5),0.103 0～0.618 0μg(r=0.999 8),0.085 6～0.513 μg(r=0.999 5),平均加样回收率(n=6)分别为99.5%,100.5%,97.5%和100.1%.30批市售品中4种生物碱类成分的含量分别为:2-羟基-1-甲氧基阿朴啡0.010%～0.076%,原荷叶碱0.002%～0.120%,荷叶碱0.008%～0.249%,莲碱0.008%～0.067%.结论 30批市售荷叶药材中4种生物碱类成分含量变化较大,其中原荷叶碱和荷叶碱的含量变化更为明显,应将4种生物碱同时纳入荷叶药材的质量控制.     

HPLC法测定贵州苗药铁筷子中东莨菪内酯的含量

目的:建立反相高效液相色潽法(HPLC)测定铁筷子中东莨菪内酯含量的方法。方法:色谱柱为Agilent HC-C18(4.6×250 mm,5μm);流动相为甲醇-水(25:75);检测波长为345 nm;流速为1m L/min;柱温为30℃。结果:东莨菪内酯在0.0484~0.4356μg范围内线性关系良好,r=0.9996,平均加样回收率为99.71。结论:该方法操作简便、准确,可测定铁筷子中东莨菪内酯的含量。     

HPLC法同时测定复方五仁醇软胶囊中绿原酸、芍药苷、五味子醇甲、五味子乙素

目的建立HPLC双波长法一次进样同时测定复方五仁醇软胶囊中绿原酸、芍药苷、五味子醇甲、五味子乙素4种主要有效成分含量的方法。方法采用Lichrospher C18色谱柱,流动相为乙腈-0.2%磷酸水,梯度洗脱,双波长检测(λ1=230nm、λ2=327nm),柱温35℃,体积流量1.0mL/min。结果绿原酸在316~19.75μg/mL(r=0.999 1)、芍药苷在208~13μg/mL(r=1.000 0)、五味子醇甲在656~41μg/mL(r=0.999 8)、五味子乙素在484~30.25μg/mL(r=1.000 0)范围内均成良好的线性。平均回收率分别为97.14%、98.41%、98.79%、102.16%,RSD分别为2.24%、2.85%、1.51%、0.68%(n=6)。结论本检测方法准确可靠、重复性好。可用于评价复方五仁醇软胶囊的质量。     

同时测定银黄胶囊中绿原酸、木犀草苷和黄芩苷的含量

目的建立同时测定银黄胶囊中绿原酸、木犀草苷和黄芩苷含量的方法。方法 HPLC等度洗脱法。C18色谱柱;流动相为甲醇∶水∶磷酸(53∶47∶0.1);流速1.0mL/min;检测波长328nm;柱温30℃。结果绿原酸在2.200~44.00μg/mL范围内(r2=0.999 9)、木犀草苷在0.080~22.00μg/mL范围内(r2=0.999 5)、黄芩苷在24.20~242.0μg/mL范围内(r2=0.999 2)线性关系均良好;其平均回收率分别为99.6%、99.3%和99.7%。结论该方法操作简便,成本低,工作效率高,可作为银黄胶囊质量的控制方法。     

王氏保赤丸中大黄5种成分的HPLC测定

目的:建立同时测定王氏保赤丸中芦荟大黄素、大黄酸、大黄素、大黄酚和大黄素甲醚5种活性成分含量的方法。方法:应用高效液相色谱法进行测定,流动相为乙腈-0.1%磷酸梯度洗脱;流速1.0 mL/min;检测波长为254 nm;柱温30℃。结果:5种成分分别在0.042~0.840μg(r=0.999 6)、0.168~3.352μg(r=0.9998)、0.084~1.680μg(r=0.999 7)、0.093~1.852μg(r=0.999 9)和0.174~3.488μg(r=0.999 4)内呈良好线性关系,平均回收率分别为99.8%(RSD=1.34%)、99.8%(RSD=1.72%)、100.0%(RSD=0.89%)、99.5%(RSD=0.97%)和100.2%(RSD=1.04%)。结论:本法操作简便,结果准确,可靠,重复性好,可用于本品的质量控制。     

LC-MS/MS法检测血液和尿液中东莨菪碱和阿托品

  目的  建立曼陀罗中毒人体血液和尿液中东莨菪碱和阿托品的LC-MS/MS检测方法。  方法  采用Shim-pack GISR-HP C18色谱柱,以乙腈-甲酸（0.1%）水溶液为流动相进行梯度洗脱,电喷雾离子源正离子多反应监测模式质谱分析,采用2个特征离子对和外标标准曲线法对曼陀罗中毒人体血液和尿液中东莨菪碱和阿托品进行定性定量分析。  结果  东莨菪碱和阿托品的定量离子对分别为m/z 304.25 [M+H]+→138.15和m/z 290.2 [M+H]+→124.15。东莨菪碱和阿托品在质量浓度1～100 ng/mL范围内线性良好（R≥0.999）,检出限（LOD）分别为:血液0.45 ng/mL和0.19 ng/mL,尿液0.38 ng/mL和0.16 ng/mL;定量限（LOQ）分别为:血液1.01 ng/mL和0.63 ng/mL,尿液1.07 ng/mL和0.38 ng/mL;提取回收率分别为:血液94.38%和94.49%,尿液94.96%和96.52%;基质效应为-3.51%～0.84%。2种目标物的准确度为89.38%～102.86%,日内和日间精密度均小于6%。  结论  建立的LC-MS/MS检测方法能快速、准确的测定生物检材中东莨菪碱和阿托品的含量。     

快速液相法同时测定鸡血藤原儿茶酸、儿茶素和表儿茶素的含量

【目的】建立快速液相色谱法同时测定鸡血藤药材中原儿茶酸、儿茶素、表儿茶素含量。【方法】采用Phenomenex Kinetex XB-C18(4.6 mm×100 mm,2.6μm)色谱柱,以乙腈—磷酸—水为流动相,等度洗脱(体积比为10∶90),流速1.3mL/min,柱温25℃,检测波长260 nm,进样体积2μL。【结果】原儿茶酸、儿茶素、表儿茶素的线性范围分别0.091 6~0.549 6μg(r=0.999 7)、0.772~3.86μg(r=0.999 4)、0.670 5~4.023μg(r=0.999 7);平均加样回收率分别为102.96%(sR=1.62%)、99.44%(sR=2.68%)、97.34%(sR=1.88%)。【结论】该方法简便、快捷,可用于鸡血藤中原儿茶酸、儿茶素、表儿茶素的含量测定,可为鸡血藤的质量控制研究提供参考。     

RP-HPLC法同时测定辽细辛中L-细辛脂素、L-芝麻脂素和卡枯醇

目的 建立同时测定辽细辛中3种非挥发性成分的高效液相色谱方法,为该药材提供质量控制方法.方法 以醋酸乙酯为溶剂,对辽细辛药材粉末进行超声提取;采用RP-HPLC法对辽细辛中的L-细辛脂素、L-芝麻脂素和卡枯醇进行同时定量测定.Diamonsil C18色谱柱(250 mm×4.6 mm,5μm),流动相为乙腈-水(50:50);体积流量为1.0 mL/min;检测波长为240 nm;进样量为10 μL;外标法定量.结果 L-细辛脂素、L-芝麻脂素和卡枯醇分别在3.50～35.0 μg/mL(r=0.9997),1.52～76.0μg/mL(r=0.999 2)和0.38～7.60 μg/mL(r=0.999 9)呈良好线性关系,回收率分别为99.7%(RSD=2.7%)、96.7%(RSD=1.9%)和97.7%(RSD=1.5%).结论 该方法简便快速,结果准确,重现性好,可用于辽细辛药材的质量控制.     

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.     

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…     

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.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.