中成药中对乙酰氨基酚含量测定的4种方法及比较

目的：运用4种含量测定方法测定中成药中对乙酰氨基酚的含量,并比较其精确度、回收率和适应性。方法：采用滴定法、双波长分光光度法、紫外吸收系数法及高效液相色谱法。结果：四种方法所测的含量有所不同。结论：用高效液相色谱法测定中成药中对乙酰氨基酚的含量,方法简便、准确、专属性强。     

HPLC法测定小儿酚氨咖敏颗粒中对乙酰氨基酚含量

目的建立高效液相色谱法测定小儿酚氨咖敏颗粒中对乙酰氨基酚的含量。方法采用高效液相色谱法。色谱柱:Diamonsil C18(250×4.6mm,5μm);流动相:1%醋酸溶液(用二乙胺调pH至3.7)—甲醇(60:40);流速:1.0 mL·min~(-1);检测波长:257nm。结果对乙酰氨基酚在8～120μg·mL~(-1)浓度范围内线性关系良好,相关系数r=0.9998。结论该方法简便、准确、重现性好,适于小儿酚氨咖敏颗粒中对乙酰氨基酚含量测定。     

感冒灵颗粒中对乙酰氨基酚含量测定方法的研究

目的:建立简便快捷的高效液相色谱法测定感冒灵颗粒中对乙酰氨基酚含量。方法:采用Agilent1100型高效液相色谱仪,Agilent Eclipse XDB C18柱(250 mm×4.6 mm,5μm),流动相为甲醇-水(1∶3),流速1.0 ml.min-1,检测波长为240 nm。结果:对乙酰氨基酚进样量在4.004～36.036μg.ml-1范围内与峰面积线性关系良好(r=0.999 9),平均回收率为99.93%,RSD为0.29%(n=6)。结论:高效液相色谱法测定感冒灵颗粒中对乙酰氨基酚含量操作简便,灵敏度高,重现性好,结果精确可靠。     

近红外光谱法快速测定阿咖酚散有效成分含量

目的采用近红外光谱法对阿咖酚散3种有效成分质量分数进行快速测定。方法以高效液相色谱法测定值作为参照,采用近红外漫反射光谱技术采集阿咖酚散药粉的近红外光谱,结合偏最小二乘法建立有效成分质量分数快速测定的方法;同时与高效液相色谱法的含量测定结果进行比较。结果对乙酰氨基酚、咖啡因、阿司匹林3种成分定量模型的验证集预测值平均相对偏差分别为1.79%、3.67%、2.47%。结论该方法准确、快速、简便,可作为生产过程中质量检测和质量控制的方法。     

HPLC法测定对乙酰氨基酚泡腾片含量

目的：采用高效液相色谱法测定对乙酰氨基酚泡腾片中对乙酰氨基酚含量。方法：以ODS C18柱为色谱柱，ψ(甲醇：pH4．5磷酸盐缓冲液)=20：80为流动相，流速1．2mL／min，检测波长254nm。结果：对乙酰氨基酚在0．02～0．25mg／mL内。峰面积与浓度呈良好线性关系(r=0.9999)，回收率99．85％，RSD=0．88％(n=6)。结论：本法能简单、准确、可靠地测定对乙酰氨基酚泡腾片中对乙酰氨基酚含量。     

一种测定亮氨酸脑啡肽(L-EK)药物的新型荧光衍生化方法

 目的 建立一种新型的氧化还原柱前衍生化荧光检测高效液相色谱法测定亮氨酸脑啡肽(leu-enkephalin,L-EK)药物。方法 将肽类药物L-EK与0.012 mol/L高碘酸钠、0.01 mol/L儿茶酚、0.3 mol/L硼酸按体积比2∶2∶1∶1混合,于120 ℃反应10 min后,用反相柱分离,以0.25 mol/L硼酸盐缓冲液(pH 7.6)和甲醇为流动相,采用梯度洗脱,荧光检测器检测。同时与高效液相色谱紫外法、邻苯二甲醛(O-phthalaldehyde,OPA)柱前衍生荧光检测高效液相色谱法比较,测定体外及血样中L-EK的含量。结果 氧化还原柱前衍生化荧光检测高效液相色谱法检测含L-EK血样,线性范围 0.5~50.0 mg/L,线性良好(r=0.999 8),血浆中检测限为0.1 mg/L,且较另外两种方法不受内源性物质的干扰。结论 新型的氧化还原柱前衍生化荧光检测高效液相色谱法专属性好,灵敏度高,尤其适合生物样品中L-EK药物的测定。     

RP-HPLC测定金感胶囊中对乙酰氨基酚的含量

目的建立金感胶囊中对乙酰氨基酚含量测定方法。方法采用反相高效液相色谱法,用Hypersil C18柱(5μm,4.6mm×150mm)为固定相,以甲醇-水(15∶85)为流动相醋酸调节至pH 3.00,检测波长为320nm。结果对乙酰氨基酚进样量在0.20~2.00μg范围内呈良好的线性关系,平均回收率为99.79%(n=6)。结论所建方法简便、准确、灵敏度较高,可用于测定金感胶囊中对乙酰氨基酚的含量。     

维生素C仪器定量分析进展

本文综述了近十年来国内文献资料中维生素C的仪器定量分析进展，包括分光光度法、旋光法、高效液相色谱法、薄层扫描法、荧光法、电化学法等在药品、食品中的应用。     

高效液相色谱法测定氨咖黄敏胶囊（片）中对乙酰氨基酚及咖啡因的含量

目的用高效液相色谱法测定氨咖黄敏胶囊（片）中对乙酰氨基酚、咖啡因2种有效成分的含量。方法：色谱柱为C18柱，检测波长为270nm，流动相为甲醇-水（25：75），流速1ml／min。结果：测得上述2种有效成分RSD（n=5）分别为0．4％、0．5％，平均回收率（n=3）分别为100．1％、100．5％。结论：本研究建立了一种快速、准确、灵敏的高效液相色谱法测定氨咖黄敏胶囊（片）中2种主要成分的方法，该法专属性强、操作简便、结果准确。     

市场上部分小儿氨酚黄那敏颗粒的质量调研

目的调研现市场上小儿氨酚黄那敏颗粒中对乙酰氨基酚和马来酸氯苯那敏的含量均匀度,考察该产品的质量情况。方法通过抽查现市场上8个小儿氨酚黄那敏颗粒产品,采用高效液相色谱法（HPLC）同时测定对乙酰氨基酚和马来酸氯苯那敏的含量均匀度。结果以对乙酰氨基酚和马来酸氯苯那敏的含量均匀度为衡量标准,有7个产品的对乙酰氨基酚的均匀度合格;有1个产品马来酸氯苯那敏的均匀度合格。结论所抽查的小儿氨酚黄那敏颗粒质量只有1个达到合格要求。     

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.