高效液相色谱法测定奥美拉唑血浆药物浓度

用反相高效液相色谱法测定人体血浆中奥美拉唑的浓度。采用国产填料（ＹＷＧ－Ｃ１８，１０ｕｍ）反相色谱柱，１．０％三乙胺甲醇：水（６０：４０，Ｖ：Ｖ）为流动相，心律平为内标。紫外检测波长为３０２ｎｍ。方法回收率分别为９８．０３％（５０ｎｇ／ｍｌ）、１０１．５５％（４００ｎｇ／ｍｌ）和１０３．１３％（１０００ｎｇ／ｍｌ），相应变异系数（ＣＶ）分别为２．９６％（ｎ＝３）、１．９２％（ｎ＝３）和１．０４％（ｎ＝３）。本方法最小检测量为３ｎｇ，最低检测血药浓度为１０ｎｇ／ｍｌ。至少在５０ｎｇ／ｍｌ至１０００ｎｇ／ｍｌ范围内呈良好线性关系。本方法专一性强、灵敏度高、准确、简便、快速。     

HPLC法测定人血浆中维拉帕米浓度

建立了高效液相色谱测定维拉帕米血药浓度的新方法。血浆样品用正己烷－乙醚（１：１，Ｖ／Ｖ）提取，以Ｚｏｒｂａｘ Ｓｉｌｉｃａ为固定相，０．０５ｍｏｌ／Ｌ磷酸二氢铵－乙腈－甲醇－三乙胺（５０：２５：２５：０．２５，Ｖ／Ｖ）为流动相，紫外２３２ｎｍ处测定。采用外标法峰高定量。血药浓度在２．５￣４００．０ｎｇ／ｍｌ线性关系良好，ｒ＝０．９９９６。最低检测浓度为２．０ｎｇ／ｍｌ。回收率达９５．１１％￣１０１     

HPLC法同时测定人血浆中四种氟喹诺酮药物的血药浓度

研究了用ＨＰＬＣ同时测定人血浆中氧氟沙星、诺氟沙星、洛美沙星和环丙沙星血药浓度的方法。采用ＳｐｈｅｒｉｓｏｒｂＣ（１８）色谱柱（２５０ｍｍ×４．６ｍｍ，５μｍ），以甲醇－０．００８ｍｏｌ／Ｌ磷酸盐缓冲液－０．５ｍｏｌ／Ｌ四丁基溴化铵（１６：７５：１．４，ｐＨ２．６）为流动相，检测波长２８０ｎｍ，血浆样品用乙腈沉淀蛋白后进样，简便快速，回收率稳定，对氧氟沙星，诺氟沙星，洛美沙星，环丙沙星四种氟喹诺酮药物检测的线性范围分别为：０．１０～５．００μｇ／ｍｌ；０．１１～５．４０μｇ／ｍｌ；０．１３～５．００μｇ／ｍｌ；０．１０～１０．００μｇ／ｍｌ。其方法检测限为：２０ｎｇ／ｍｌ；２０ｎｇ／ｍｌ；２５ｎｇ／ｍｌ及４０ｎｇ／ｍｌ，回收率均高于８６％。应用本法观察了健康人口服氧氟沙星和环丙沙星后的血药浓度变化。     

HPLC测定人血浆中罗痛定浓度及药代动力学研究

建立了测定人血浆中罗痛定药物浓度的高效液相色谱法。采用ＹＷＧＣ１８色谱柱（２５０ｍｍ×４．６ｍｍ），以甲醇－水－三乙胺（７０∶３０∶０．３，ｖ／ｖ／ｖ，ｐＨ６．３）为流动相，维拉帕米为内标，用紫外检测器在２８１ｎｍ处检测。血浆样品用正己烷－正丁醇混合液（１２∶１）在碱性条件下提取。血药浓度在２．５～１０００ｎｇ／ｍｌ范围内呈线性关系，ｒ＝０．９９９１，最小检测浓度１．５ｎｇ／ｍｌ。日内、日间ＲＳＤ分别＜６．９％，＜８．７％。方法回收率＞９２．１％。应用该法研究了五名健康志愿者口服罗痛定片后的药代动力学。     

反相离子对高效液相色谱法测定人血浆中阿昔洛韦浓度及药代动力学

建立了用反相离子对高效液相色谱法测定人血浆中阿昔洛韦浓度的方法。色谱柱采用ＡｌｌｔｅｃｈＣ＿１８分析柱，以０．０４ｍｏｌ／Ｌ氯化钠－甲醇－ＩＰＲ－Ｂ７离子对色谱试剂混合液（１００：１５：０．６；ｖ／ｖ）为流动相。检测波长为２５４ｎｍ，肾上腺素为内标。血浆样品经高氯酸沉淀蛋白后直接进样测定。阿昔洛韦浓度在４０～１６００ｎｇ／ｍｌ范围内线性良好，ｒ＝０．９９９２．测定含阿苷洛韦１６０ｎｇ／ｍｌ的血浆样品，其日内（ｎ＝７）及日间的ＲＳＤ分别为４．７％和３．０％。平均回收率为９８．２±５．３％。测定了１０名健康志愿者单次口服阿昔洛韦片剂４００ｍｇ后不同时间的血药浓度并计算了有关的药代动力学参数。     

RP—HPLC测定人血浆中洛伐他汀浓度及药动学研究

用ＲＰ－ＨＰＬＣ测定人血浆中洛伐他汀浓度。以甲醇－水（８３∶１７，Ｖ／Ｖ）为流动相，色谱柱采用ＨＹＰＥＲＳＩＬＢＤＳ－Ｃ１８（５μｍ）不锈钢柱，紫外２３７ｎｍ波长检测。血浆样品经环己烷－异丙醇（９５∶５）萃取浓缩后进样测定。洛伐他汀浓度在２．５～８０ｎｇ／ｍｌ范围内线性良好，ｒ＝０．９９６８。测定含洛伐他汀２０．０ｎｇ／ｍｌ的血浆样品，其日内（ｎ＝７）及日间（ｎ＝７）的ＲＳＤ分别为９．８％和８．５％。回收率平均为（１０１．３±５．５）％。测定了１０名健康志愿者单次ｐｏ洛伐他汀片剂８０ｍｇ后不同时间的血药浓度，计算了相应的药动学参数。     

高效液相色谱法测定兔血浆间硝苯地平浓度

目的：测定兔血浆中间硝苯地平的浓度。方法：采用高效液相色谱内标定量法，粒径为３μｍ的Ｃ１８色谱柱，流动相为９５％甲醇：水（４５：２０，ｖ／ｖ），紫外检测波长为５３５０ｎｍ，使兔血浆中的间硝苯地平得到良好分离。结果：间硝苯地平的相对保留时间为７ｍｉｎ，最低检测浓度为１０ｎｇ／ｍｌ，血浆药物浓度在０￣５７６０ｎｇ／ｍｌ范围内具良好线性关系，日内变异系数为２．１％￣７．０％，日间变异系数为３．７％￣９．     

人血浆中盐酸氟桂嗪HPLC测定及其药代动力学

建立了盐酸氟桂嗪的ＨＰＬＣ测定法。血浆样品碱化后用正已烷提取，以ＭｉｃｒｏＰａｃＭＣＨ－５为固定相，６５％甲醇，３５％水（含０．０２ｍｏｌ／Ｌ四丁基溴化铵，ｐＨ３．０）为流动相，紫外检测波长２５４ｎｍ。最低检出浓度为５．０ｎｇ／ｍｌ，线性范围１０．０～２００．０ｎｇ／ｍｌ（ｒ＝０．９９９８，ｎ＝６），平均回收率为（９７．５５±２．６８）％（ＲＳＤ２．１３％。用本法测定了８名健康男性志愿者分别服用杨森产盐酸氟桂嗪胶囊和新昌产盐酸氟桂嗪片剂的血药浓度。结果表明，其血药浓度－时间曲线均符合一房室模型。新昌产盐酸氟桂嗪片的主要药代动力学参数Ｔ１／２Ｋａ＝（０．７７±０．１１）ｈ，Ｔ１／２Ｋｅ＝（５．０７±０．５２）ｈ，Ｔｍａｘ＝（２．７９±０．２４）ｈ，Ｃｍａｘ＝（９５．００±４．５２）ｎｇ／ｍｌ，ＡＵＣ＝（９９７．６±６２．５）ｎｇ·ｈ／ｍｌ，相对生物利用度为９６．４％。     

高效液相色谱法测定奥美拉唑血浆药物浓度

用反相高效液相色谱法测定人体血浆中奥美拉唑的浓度，采用国产填料（ＹＷＧ－Ｃ１８，１０μｍ）反相色谱柱，１．０％三乙胺甲醇：水（６０：４０，Ｖ：Ｖ）为流动相，心律平为内标，紫外检测液长为３０２ｎｍ，方法回收率分别为９８．０３％（５０ｍｇ／ｍｌ）１０１．５５％（４００ｍｇ／ｍｌ）和１０３．１３％（１０００ｍｇ／ｍｌ），相应变异系数（ＣＶ）分别为２．９６％（ｎ＝３），１．９２％（ｎ＝３）和１．０４％（ｎ     

反相高效液相色谱法测定血浆中普萘洛尔的浓度

以硫酸奎宁为内标，反相ＨＰＬＣ－ＵＶ法定量测定血浆中普萘洛尔的含量。固定相为Ｓｐｈｅｒｉｓｏｒｂ５ＯＤＳ（２），流动相为甲醇－水－０．２ｍｏｌ／Ｌ磷酸二氢钾（１００：１５：１）。紫外检测波长为２３２ｎｍ。检测浓度可低达１０ｎｇ／ｍｌ。线性范围为１０～２００ｎｇ／ｍｌ（ｒ＝０．９９９７）。本法灵敏，准确，简便，可用于血浆普萘洛尔测定及其药代动力学研究。     

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.     

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.     

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.