RP-HPLC法测定小柴胡颗粒中黄芩苷含量

目的 :以RP HPLC测定小柴胡颗粒中黄芩苷含量。方法 :黄芩苷以超声法直接用甲醇提取。色谱条件为 :AlltimaC18色谱柱 ( 2 50mm× 4 .6mm ,5μm ) ;流动相为甲醇 水 磷酸 ( 60∶4 0∶0 .2 ) ;柱温室温 ;检测波长 2 80nm。结果 :黄芩苷在 0 .0 6～ 0 .60 μg线性关系良好 ,平均加样回收率为 10 0 .2 3% ,RSD =1.70 % (n =5)。结论 :本法快速、准确、重现性好 ,可用于本制剂质量控制。     

RP-HPLC测定葛根芩连汤有效部位中黄芩苷和葛根素的含量

目的　建立葛根芩连汤有效部位中黄芩苷和葛根素的RP HPLC含量测定方法。方法　采用YWG C18色谱柱 (2 5 0mm× 4 6mm ,10 μm) ,黄芩苷含量测定流动相为甲醇 -水 -磷酸 (47∶ 5 3∶0 2 ) ,流速 :1 0mL/min ,检测波长 :2 80nm ;葛根素含量测定流动相为甲醇 -水 (2 5∶ 75 ) ,流速 :1 0mL/min ,检测波长 :2 5 0nm。结果　黄芩苷平均回收率为 98 61% ,RSD =2 77% (n =5 ) ;葛根素平均回收率为 10 2 4 % ,RSD =2 70 % (n =5 )。结论　所建立的方法简便、准确 ,可作为葛根芩连汤有效部位的质量控制方法     

RP-HPLC法测定鼻渊合剂中黄芩苷的含量

目的 :建立鼻渊合剂黄芩苷含量测定的RP HPLC方法 ,确定鼻渊合剂中黄芩苷含量范围。方法 :以C18化学键合相硅胶柱为固定相 ,甲醇∶水∶醋酸 =4 5∶5 5∶1为流动相 ,柱温 4 0° ,检测波长为 2 74nm。以不含黄芩的“空白”鼻渊合剂作为溶剂 ,测定不同浓度的标准对照品的吸收度 (mau)。结果 :黄芩苷在 0～ 5 0 0 μg ml时 ,有较好的线性关系 ,相关系数r=0 .9999。结论 :应用RP HPLC法测定鼻渊合剂中黄芩苷方法可靠 ,重现性较好。建议鼻渊合剂中黄芩苷的含量控制在 2 0 0± 10 % μg ml较为适宜。     

反相高效液相色谱法测定黄连解毒片中黄芩苷的含量

目的 :建立反相高效液相色谱法 (HPLC)测定黄连解毒片中黄芩苷含量方法 ,为控制黄连解毒片的质量提供依据。方法 :色谱柱为HypersilC18柱 (5 μm ,4 .6mm× 15 0mm) ,柱温为室温 ,流速为 1.0mL/min ,检测波长为 2 80nm ,以 ψ(甲醇 ∶水 ) =5 0∶5 0用磷酸调pH =3为流动相 ,室温操作。结果 :按黄芩苷峰计算应不低于 2 5 0 0 ,该方法线性范围为 2～ 10 μg/mL ,r=0 .9999,平均回收率为 99.92 % (RSD =0 .4 % ,n =5 )。结论 :本方法测定黄连解毒片中黄芩苷含量 ,简便和准确 ,结果稳定 ,重复性好 ,可用于控制该片剂的质量     

HPLC法测定芩夏止哮颗粒中黄芩苷含量

建立了用HPLC测定芩夏止哮颗粒中黄芩苷含量的方法 :色谱柱为YWG C1 8( 4 6mm× 2 50mm ;1 0 μm) ;流动相 :MeOH∶H2 O∶THF∶H3PO4( 2 0 0∶30 0∶50∶0 1 65) ;黄芩苷保留时间约 9min ;黄芩苷平均回收率为 1 0 0 65% ;RSD :2 0 3%。     

HPLC-DAD-TOF/MS法测定小柴胡汤中柴胡皂苷a、黄芩苷和甘草酸的含量

目的:建立小柴胡汤药材中柴胡皂苷a 、黄芩苷和甘草酸含量测定的方法.方法:采用HPLC-DAD-TOF/MS,Agilent Zorbax XDB-C18柱(2.1 mm×50 mm, 1.8 μm),水(0.025%甲酸)-甲醇(0.025%甲酸)为流动相,梯度洗脱,流速为0.15 ml·min-1,柱温为25℃ ,进样量0.25 μl;质谱条件为电喷雾电离源(ESI),正离子监测,毛细管电压为4 000 V,干燥气流速为10.0 L·min-1,干燥气温度为350℃ ,雾化器压力为40 psi(275 792 Pa),裂解器电压为200 V,用于定量分析的柴胡皂苷a离子为m/z 803.420 0～803.490 0.黄芩苷和甘草酸检测波长分别是275 nm和250 nm.结果:柴胡皂苷a线性范围为0.211 6～127.3 μg·ml-1, 线性方程为Y=461 182 X 2 000 000(r=0.999 0).黄芩苷线性范围为0.758～455 μg·ml-1,线性方程Y=5.978 9X-27.418(r=0.999 5).甘草酸单铵盐线性范围为2.268-136.8 μg·ml-1,线性方程Y=0.949 9X-1.046 4(r=0.999 5).高、中、低浓度的柴胡皂苷a平均回收率分别为(95.54±1.60)%、(99.39±3.97)%、(103.8±1.97)%和黄芩苷平均回收率分别为(102.3±0.47)%、(100.9±1.32)%、(97.15±2.10)%及甘草酸单铵盐平均回收率分别为(102.6±1.96)%、(100.3±3.12)%、(97.75±1.25)%.日内、日间RSD均＜5%,21 d内稳定性试验结果表明RSD均＜5%.小柴胡汤中柴胡皂苷a、黄芩苷和甘草酸的含量分别为0.750 0、10.65和2.572 mg/g.结论:该方法简便、灵敏、快速、准确,适用于小柴胡汤的质量控制.     

HPCE法测定生黄芩、酒黄芩中黄芩苷含量

目的 :建立中药饮片生黄芩、酒黄芩中黄芩苷含量测定的毛细管电泳法。方法 :毛细管电泳法紫外检测生黄芩和酒黄芩中黄芩苷的含量 ,以 4 0mmol/L硼砂缓冲液 (pH 8.5 )为电泳介质 ,未涂层融硅毛细管 (5 0 μm× 4 7cm) ,有效分离长度 4 0cm ,压力进样 17kPa·s ,2 5kV恒压电泳 ,检测波长为 2 80nm。结果 :黄芩苷的线性范围在 0 .0 5～ 0 .80mg/ml,回归方程Y =2 .1335X - 0 .0 5 77,r=0 .9991,平均回收率 98.96 % ,n =5 ,RSD =1.0 2 %。结论 :本方法快速、简便、结果准确 ,重现性好 ,可用于生黄芩、酒黄芩中黄芩苷的含量测定。     

高效液相色谱法测定小柴胡汤中黄芩苷、汉黄芩苷的含量

目的 采用高效液相色谱法测定小柴胡汤中黄芩苷、汉黄芩苷的含量。方法 饮片粉末用水回流提取,色谱柱:Agilent Zorbax XDB-C18(150 mm×4.6 mm, 5 μm);流动相为乙腈和水;A 相为0.2%磷酸-水,B 相为乙腈,梯度洗脱;流速1 ml/min ,柱温25℃,检测波长275 nm,进样量15 μl。结果 黄芩苷和汉黄芩苷在30 min内基线分离。以峰面积(Y)对浓度(X)的标准曲线分别为:黄芩苷Y=44.16X-36.22(r=0.999 9); 汉黄芩苷Y=52.08X-28.69(r=0.999 9)。日内及日间精密度均小于1%,黄芩苷和汉黄芩苷的定量限分别为0.615 6 μg/ml和0.220 8 μg/ml,黄芩苷和汉黄芩苷加样回收率(n=6)分别为95.73%(RSD=0.8%)及97.02%(RSD=1.56%)。结论 该方法稳定性好,测定结果准确可靠,可用于小柴胡汤的质量控制研究。     

HPLC同时测定小柴胡颗粒中四种成分的含量

目的:为了建立同时测定小柴胡颗粒中黄芩苷、汉黄芩苷、黄芩素和汉黄芩素四种有效成分含量的HPLC分析。方法:色谱柱:Dikma Diamonsil C18柱(250 mm×4.6 mm,5μm);流动相:乙腈–0.05%磷酸溶液,梯度洗脱;波长:278nm。结果:黄芩苷、汉黄芩苷、黄芩素和汉黄芩素的线性范围分别为0.418～4.18μg(r=0.9999),0.2～2μg(r=0.9999),0.233～2.33μg(r=0.9999),0.215～2.15μg(r=0.9998)。小柴胡颗粒中4种成分的平均回收率分别为98.10%(RSD=0.59%),98.85%(RSD=1.33%),98.95%(RSD=1.36%),99.09%(RSD=1.23%)。结论:该方法快速、简便、准确、具有良好的重复性和回收率,可作为小柴胡颗粒中这4种成分的含量测定方法。     

HPLC法测定咳喘口服液中黄芩苷的含量

目的 :建立咳喘口服液中黄芩苷的含量测定方法。方法 :用高效液相色谱法测定 ,DiamonsilC18色谱柱 (2 5 0mm× 4 .6mm) ,流动相 :ψ(甲醇 ∶水∶磷酸 ) =4 5 ∶ 5 5∶0 .2 ,检测波长 2 80nm。结果 :黄芩苷对照品在 0 .10 12～ 1.0 12mg/mL范围内与峰面积呈良好线性关系 ;精密度、重复性试验结果RSD分别为 0 .4 2 %和 0 .76 % ;平均回收率为 10 0 .4 7% ,RSD 0 .95 %。结论 :本法简便、灵敏、准确、重现性好 ,建立的定量方法可用于咳喘口服液质量控制     

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.     

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.     

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.     

CLINICAL SIGNIFICANCE OF SERUM CYTOKINES IL-1β,sIL-2R,IL-6,TNF-α,AND IFN-v IN ACUTE CORONARY SYNDROME

Objectives To explore serum cytokines levels (including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v) and their significance in patients with acute coronary syndrome (ACS) and the subsequent follow-ups, with attempt to estimate the role of various serum inflammatory markers in the diagnosis and assessment of ACS.Methods The study population include 40 patients with acute myocardial infarction (AMI), 40 patients with unstable angina pectoris (UAP), and 40 controls. Among the 80 patients, 60 patients attended a follow up 4 months later. Serum inflammatory markers including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v were measured by enzyme linked immunosorbent assay.Results Serum IL- 1 β, sIL-2R, IL-6, TNF-α were significantly higher in AMI group or UAP group compared to the control group and became significantly lower 4 months later in the follow-up patients. Serum levels of IFN-v shows no significant difference between AMI group or UAP group and controls, also showing no significant change when measured in follow up patients. There was no correlation between serum creatine kinase-MB isoenzyme levels and serum inflammatory markers either in UAP or AMI group. Furthermore, when divided into two subgroups using Wagner's QRS scoring system in the AMI group, there is no difference of each serum inflammatory marker between ≤ 6 scores group and ＞ 6 scores group.Conclusion Serum levels of certain inflammatory markers may have some diagnostic value for ACS, and can be a useful marker reflecting disease stability.     

Possible Spread of adenovirus type 3 from poultry to humans ：indirect evidence from an outbreak in China

Objective:To explore the epidemiology and etiology for an outbreak of acute respiratory tract infection that occurred in one county of Jiangsu Province, China 2004. Methods: Only cases meeting the case definition were included in the study. We reviewed the medical records of the cases who were admitted to the local hospitals, interviewed cases by a standard questionnaire, and then described the epidemiotogic features and analyzed risk factors by means of a case-control study. We collected pharyngeal swab specimens and sent them to different laboratories for isolation and culture. The laboratory used different detection methods such as DIP, PCR, electron microscope examination and microneutralization assay, to identify and then type the positive specimens. Results:A total of 871 cases were reported during the period from April 18 to July 4,2004. The distribution of onset times presented two peaks, one in late May and another in middle June. The epidemic occurred mainly in the elementary and junior high schools in ten townships of one county, and the mean age of the cases was 12 years (range 7 months to 18 years). The course of the disease was acute, and was characterized by fever accompanied with sore throat and tonsillitis. The WBC count of cases was normal or elevated. The mean duration of illness was 5 days (range 2 to 12 days). No fatalities from illness were reported. A case-control study indicated that the possible risk factors were close contact with a case and/or poultry before onset and sharing of towels among members of the family. The typical CPE was observed through inoculating pharyngeal swab specimens into the HEP-2 cell cultures in different laboratories. An infection of adenovirus type 3 was verified by detecting positive specimens in different methods. Conclusion:This investigation demonstrated that the acute respiratory infection in cases was caused by adenovirus type 3. Cases occurred in over 70 schools in ten townships in 2004, and the route of transmission was possibly close contact with cases or droplet transmission.