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1.
目的 建立同时测定银黄颗粒中7种有机酸类成分(新绿原酸、绿原酸、隐绿原酸、咖啡酸和异绿原酸A、B、C)和4种黄酮类成分(黄芩苷、汉黄芩苷、黄芩素及汉黄芩素)的HPLC方法。方法 色谱柱为AkzoNobel Kromasil C18柱(250 mm×4.6 mm,5 μm);流动相为乙腈-0.1%磷酸水溶液,梯度洗脱;分段变波长测定;柱温30 ℃;体积流量1.0 mL/min。结果 11种成分的线性关系均良好,精密度、稳定性、重复性的RSD均低于2%,加样回收率为97.35%~99.23%。结论 该方法简便、准确、灵敏,可用于银黄颗粒质量标准提高研究。  相似文献   

2.
目的 建立同时测定银黄颗粒中7种有机酸类成分(新绿原酸、绿原酸、隐绿原酸、咖啡酸和异绿原酸A、B、C)和4种黄酮类成分(黄芩苷、汉黄芩苷、黄芩素及汉黄芩素)的HPLC方法。方法 色谱柱为AkzoNobel Kromasil C18柱(250 mm×4.6 mm,5 μm);流动相为乙腈-0.1%磷酸水溶液,梯度洗脱;分段变波长测定;柱温30 ℃;体积流量1.0 mL/min。结果 11种成分的线性关系均良好,精密度、稳定性、重复性的RSD均低于2%,加样回收率为97.35%~99.23%。结论 该方法简便、准确、灵敏,可用于银黄颗粒质量标准提高研究。  相似文献   

3.
目的 建立HPLC同时测定复方百部止咳颗粒中柚皮苷、橙皮苷、新橙皮苷、黄芩苷和黄芩素的方法。方法 Diamonsil C18柱(200 mm×4.6 mm,5 mm),流动相A为1%冰醋酸溶液,B为乙腈,线性梯度洗脱,检测波长283 nm,柱温30 ℃,体积流量1.0 mL/min,进样量10 μL。结果 柚皮苷、橙皮苷、新橙皮苷、黄芩苷和黄芩素分别在3.52~35.2 mg/mL(r=0.999 8),5.92~59.2 mg/mL(r=0.999 9),2.64~26.4 mg/mL(r=0.999 7),5.76~57.6 mg/mL(r=0.999 7),0.60~6.0 mg/mL(r=0.999 8)线性关系良好;平均加样回收率依次为98.9%、99.8%、99.7%、99.8%、99.2%,RSD分别为0.6%、0.9%、1.0%、1.3%、1.3%。结论 该方法快速、简便,重现性好,适合于同时测定复方百部止咳颗粒中柚皮苷、橙皮苷、新橙皮苷、黄芩苷和黄芩素。  相似文献   

4.
目的 建立同时测定注射用双黄连中黄芩苷、野黄芩苷、黄芩素、咖啡酸和绿原酸5种有效成分的方法。方法 高效液相色谱法。Phenomenex C18色谱柱(250 mm×4.6 mm,5 μm);流动相:乙腈-1%冰醋酸水溶液,作梯度洗脱;检测波长为327 nm;体积流量为1 mL/min;柱温为40 ℃,灵敏度为0.100 0 AUFS。结果 在筛选色谱条件下,测定了注射用双黄连中的黄芩苷、野黄芩苷、黄芩素、咖啡酸和绿原酸5种有效成分。结论 本方法简便、快速、准确、可靠,可用于注射用双黄连中有效成分的测定。  相似文献   

5.
目的 建立UPLC法同时测定金欣口服液中芥子碱硫氰酸盐、虎杖苷、野黄芩苷、白藜芦醇、黄芩苷、大黄素-8-O-β-葡萄糖苷、黄芩素、汉黄芩素8种指标成分的量。方法 采用UPLC法Acquity UPLC BEH C18色谱柱(100 mm×2.1 mm1.7 μm)乙腈-0.1%甲酸水溶液为流动相体积流量0.4 mL/min梯度洗脱,检测波长280 nm,柱温35;分别对线性关系、精密度、重复性、稳定性及加样回收率进行考察。结果 被测定的8种指标成分分别在选定的范围内线性关系良好平均加样回收率99%~102%RSD均小于3.1%。结论 本方法操作简便测定结果准确可靠可用于金欣口服液的质量控制。  相似文献   

6.
目的 建立HPLC法测定风痛炎颗粒中黄芩苷的方法。方法 采用RP-HPLC法测定黄芩苷的量;色谱柱为C18柱(250 mm×4.6 mm,10 μm),流动相为甲醇-水-冰醋酸(50∶50∶1),体积流量1.0 mL/min,检测波长274 nm,柱温40 ℃。结果 黄芩苷在100.60~2 012.00 μg/mL线性关系良好,平均回收率为100.25%,RSD为0.360%。结论 本方法简单、准确,可用于风痛炎颗粒的质量控制。  相似文献   

7.
目的 建立同时测定清化丸中绿原酸和黄芩苷的方法。方法 采用HPLC法,色谱柱为Diamond C18(250 mm×4.6 mm,5 μm)柱,流动相为甲醇-0.2%磷酸水溶液,梯度洗脱,体积流量1.0 mL/min,检测波长327 nm,柱温40 ℃。结果 绿原酸在32.96~494.40 ng呈线性关系,平均回收率为100.6%;黄芩苷在48.27~724.05 ng呈线性关系,平均回收率为98.6%。结论 该方法简便、准确可靠,能同时定量测定两种成分,更全面地控制清化丸的质量。  相似文献   

8.
目的 建立HPLC法测定小儿咳喘颗粒中黄芩苷的方法,控制产品的质量。方法 采用高效液相色谱法对小儿咳喘颗粒中的黄芩苷进行测定。色谱柱:Hypersil C18色谱柱(250 mm×4.6 mm,5 μm),流动相为甲醇-水-磷酸(47∶53∶0.2),体积流量1 mL/min,检测波长280 nm;柱温室温。结果 黄芩苷的线性范围分别为0.049 5~1.485 0 μg,平均回收率为99.99%,RSD为0.52%。结论 方法可行、重现性好,能有效地控制小儿咳喘颗粒的质量。  相似文献   

9.
目的 建立HPLC-MS/MS检测银黄颗粒中绿原酸和黄芩苷的方法。方法 应用超声提取和Agilent G6410B Triple Quad LC/MS检测。Agilent Eclipse Plus C18(100 mm×2.1 mm,3.5 μm)分析柱,流动相为甲醇-0.1%醋酸水溶液(60∶40),体积流量0.2 mL/min,柱温25 ℃,进样量为20 μL;以液相色谱分离、电喷雾离子化串联质谱进行检测。结果 绿原酸和黄芩苷分别在50~800 ng/mL、125~2 000 ng/mL线性关系良好,银黄颗粒中绿原酸和黄芩苷的平均加样回收率分别为102.96%、100.69%。结论 该方法快速简便、精密度好、灵敏度高,可用于银黄颗粒中绿原酸和黄芩苷的定量测定。  相似文献   

10.
目的 研究冰片、熊去氧胆酸对黄芩苷离体角膜透过率的影响,探讨其在眼用制剂中的应用。方法 采用离体角膜渗透技术考察不同质量浓度的冰片、熊去氧胆酸对黄芩苷角膜透过率的影响。结果 0.2 mg/mL的冰片使黄芩苷表观渗透系数(Papp)增加了1.36倍,与对照组相比具有显著性差异(P<0.05);0.3、0.4、0.5、0.7 mg/mL的冰片使黄芩苷Papp分别增加了1.35、1.43、1.51、3.47倍,0.2、0.3、0.4、0.5、0.7 mg/mL的熊去氧胆酸使黄芩苷Papp分别增加了1.19、2.25、1.24、0.35、0.68倍,与对照组相比均具有非常显著性差异(P<0.01)。结论 0.2、0.3、0.4、0.5、0.7 mg/mL的冰片、熊去氧胆酸能够显著增大黄芩苷的Papp,且对角膜无刺激性。  相似文献   

11.
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.  相似文献   

12.
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.  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
Journal of Nanjing Medical University (English Edition) JNMU, sponsored by Nanjing Medical University, was established in 1987. It is a bimonthly comprehensive English medical journal published locally and abroad.Since 2007, Journal of Nanjing Medical University (English Edition )was granted Elsevier the full publishing and distribution rights worldwide for the Electronic Edition, excluding the People's Republic of China.  相似文献   

19.
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.  相似文献   

20.
Objective To measure Derpl and Blot5 allergen levels in asthmatics' homes in Hongkong.Methods Seventy houses were enrolled for a mite indoor environment study. Dust samples were obtained from two sites of each patients' house: bed and floor. Derpl and Blot5 levels were quantified by a two-site monoclonal antibody-based ELISA technique.Results The levels of Derpl allergens found in bed (geometric mean (GM) 3.43 μg/g of dust; 95%CI, 1.89-4.96 μg/g)and on the floor (GM 1.12 μg/g of dust; 95%CI, 0.71-1.53 μg/g) indicated significant differences (P=0.005). However, the levels of Blot5 allergens found in bed (GM 19.00 μg/g of dust; 95%CI, 0.89-38.90 μg/g) and on the floor (GM 6.14 μg/g of dust; 95%CI, 0.40-11.90 μg/g) showed no statistically significant difference. In addition, in regards to the exposure index for Derpl and Blot5 allergens found in bed and on the floor, 17.6% in bed and 8.6% on the floor had levels of Blot5 ≥ 10 μg/g of dust, higher than those obtained for Derp1 (7.2% and 0% in bed and on the floor respectively, P< 0.05); higher percentages in bed and on the floor (25.0% and 35.7%) were observed for levels of Blot5 =0 μg/g of dust as compared with Derpl in bed and on the floor (4.3% and 14.5% respectively, P< 0.05).Conclusions Derpl and Blot5 are the major allergens found in this regional study, Blot5 is a more potent allergen in Hongkong, probably reflecting the high level of exposure to Blomia tropicalis (Bt). Bt and Dermatophagoides pteronyssinus (Dp) allergens should be included for precise diagnosis and effective immuno-therapeutic treatment of mite allergy in Hongkong.  相似文献   

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