蓝翘解毒口服液质量标准的改进

目的对蓝翘解毒口服液的质量标准进行改进。方法采用薄层色谱法(TLC)鉴别制剂中的板蓝根,气相色谱法(GC)鉴别制剂中的广藿香,高效液相色谱法(HPLC)测定制剂中连翘苷的含量。结果 TLC法鉴别供试品色谱中,在与对照药材色谱和对照品色谱相应的位置上显相同颜色的斑点;GC法检测供试品色谱中呈现与对照品色谱峰保留时间相同的色谱峰;HPLC法含量测定中连翘苷在9.387~300.4μg/m L质量浓度范围内线性关系良好(r=0.9999,n=6),加样回收率为99.62%,RSD为1.21%(n=9)。结论本研究建立的方法结果准确,稳定性好,专属性强,改进后的质量标准可用于蓝翘解毒口服液的质量控制。     

复方淫羊藿颗粒中淫羊藿苷的薄层鉴别与含量测定

目的建立复方淫羊藿颗粒中淫羊藿苷的鉴别和含量测定方法。方法采用TLC法鉴别淫羊藿;采用HPLC法测定复方淫羊藿颗粒中淫羊藿苷的含量。结果供试品薄层色谱中,在与对照品色谱相应的位置上显相同的暗红色斑点;喷以三氯化铝试液,再置紫外光灯下检视,显相同的橙红色荧光斑点。淫羊藿苷在0.01~0.500μg/mL浓度范围内有良好的线性关系,r=0.9 999,平均回收率为100.6%,RSD值为1.4%。结论TLC法可用于复方淫羊藿颗粒中淫羊藿苷的定性鉴别,HPLC法可用于复方淫羊藿颗粒中淫羊藿苷的含量测定。     

复方赤红颗粒中独活和川芎及芍药苷的含量测定

目的 建立复方赤红颗粒中独活、川芎及芍药苷含量的测定方法。方法 分别取复方赤红颗粒、独活阴性样品及独活对照药材各1 g制备独活鉴别的供试品、阴性对照及对照药材溶液,分别取复方赤红颗粒(2 g)、川芎阴性样品(2 g)及川芎对照药材(0.1 g)制备川芎鉴别的供试品、阴性对照及对照药材溶液,采用薄层色谱法(TLC)对独活和川芎进行定性鉴别;取复方赤红颗粒(3 g)制备供试品溶液,采用高效液相色谱(HPLC)法测定芍药苷含量,进行线性关系、精密度、稳定性、重复性和加样回收率试验及上述3批样品的含量测定。结果 独活和川芎的薄层色谱中斑点清晰,阴性无干扰;芍药苷在5.22～167.04 mg/L范围内具有良好线性关系(r=0.999 0),精密度、稳定性及重复性试验的相对标准偏差(RSD)分别为1.14%、1.45%及1.39%;平均加样回收率为102.8%,RSD为1.36%;3批样品芍药苷平均含量分别为1.424 3 mg/g、1.409 1 mg/g及1.432 7 mg/g。结论 复方赤红颗粒的TLC方法专属性高,本研究建立的含量测定方法专属性强、分离度高及重复性好。     

HPLC法测定各沪产地龙和广地龙中次黄嘌呤、黄嘌呤、尿嘧啶和尿苷的含量

目的 测定各种沪产地龙与广地龙中次黄嘌呤、黄嘌呤、尿嘧啶、尿苷的含量,建立地龙药材质量评价的方法.方法 用0.9％生理盐水超声提取地龙,SORBAX SB-Aq色谱柱(250 mm×4.6mm,5μm,Aglient Co.,Ltd),流动相:5 mmol/L磷酸二氢钾(pH 2.9),流速1 mL/min,检测波长254 nm,柱温30℃,进样量10μL,采用HPLC法,同时测定次黄嘌呤、黄嘌呤、尿嘧啶、尿苷4种核苷类成分的含量.结果 次黄嘌呤的线性范围为0.500 0～100.00 μg (r=0.999 9),平均回收率99.37％,RSD=1.36％(n=6);黄嘌呤的线性范围为0.500 0～100.00 μg(r=0.993 1),平均回收率91.57％,RSD=1.40％(n=6);尿嘧啶的线性范围为0.500 0～100.00 μg (r=0.999 9),平均回收率95.31％,RSD=1.64％(n=6);尿苷的线性范围为0.500 0～100.00 μg(r=0.999 9),平均回收率100.21％,RSD=1.98％(n=6).结论 该方法重复性、回收率好,可用于测定地龙与广地龙中次黄嘌呤等4种核苷类成分的含量.     

复方辛夷口服液的质量标准研究

目的　建立复方辛夷口服液的质量标准。方法　采用TLC法鉴别辛夷和麻黄 ,采用HPLC法测定口服液中黄芩苷含量。结果　辛夷、麻黄TLC鉴别以及黄芩苷的HPLC测定方法简便可行 ,重现性好 ,加样回收率为 99.6 7% ,RSD为1.2 1%。结论　复方辛夷口服液的质量标准简便可行。      

金边土鳖中3种核苷类成分质量控制方法研究

目的:建立不同产地金边土鳖中3种核苷类成分定性鉴别与含量测定方法,为金边土鳖质量标准的制订提供实验参考。方法:采用薄层色谱法(TLC)对金边土鳖中尿嘧啶和次黄嘌呤进行定性鉴别;采用高效液相色谱法(HPLC)同时测定金边土鳖中尿嘧啶、尿囊素和次黄嘌呤3种核苷类成分,以Waters Spherisorb?STAR NH2(5μm,4.6 mm×250 mm)为色谱柱,以乙腈-水(95∶5)为流动相,等度洗脱,在柱温为30℃、波长为205 nm条件下,以0.8 m L·min-1的流速进行测定。结果:14批金边土鳖TLC色谱中尿嘧啶和次黄嘌呤斑点清晰、分离度好,可用于金边土鳖的定性鉴别;尿嘧啶、尿囊素和次黄嘌呤分别在0.1014~0.5410μg(r=0.9995)、0.0365~0.2920μg(r=0.9997)、0.0429~0.2385μg(r=0.9996)线性范围内线性关系良好;平均回收率分别为101.20%(RSD=1.60%)、101.47%(RSD=2.10%)、101.92%(RSD=3.40%)(n=9)。结论:所建立的3种核苷类成分定性定量分析方法操作简便、重复性好。     

小蓟饮片标准煎液中蒙花苷的TLC鉴别及HPLC含量测定

目的 建立小蓟标准煎液中蒙花苷的TLC鉴别及HPLC含量测定的方法.方法 采用TLC法对小蓟标准煎液进行定性鉴别,以乙酰丙酮-丁酮-乙醇-水(体积比1∶3∶3∶13)为展开剂,AlCl3试液为显色剂;采用HPLC法测定不同厂家不同批次小蓟中蒙花苷的含量,Kromasil 100-5C18(250 mm×4.6 mm,5 μm)为色谱柱,甲醇-体积分数0.5%醋酸(体积比55∶45)为流动相,流速为1 mL/min,检测波长为326 nm,柱温30 ℃;并对标准煎液中蒙花苷转移率进行研究. 结果 TLC法能鉴别出蒙花苷,且特征斑点清晰,专属性强;HPLC含量测定方法中,蒙花苷在0.11~2.2 μg之间与峰面积线性关系良好,r=0.999 9,平均回收率为99.55%(n=6),RSD值为1.9%.15批次小蓟饮片制成的标准煎液中蒙花苷质量浓度为1.03~1.31 mg/mL,转移率为76.34%~88.29%.结论 所建立的TLC和HPLC法操作简便、准确、重复性好,可以用于小蓟标准煎液的质量控制.     

小儿感冒宁糖浆的薄层鉴别及黄芩苷的含量测定

目的:建立小儿感冒宁糖浆质量标准。方法:采用TLC和HPLC。结果:TLC鉴别小儿感冒宁糖浆中的金银花、黄芩、栀子等药材;HPLC测定黄芩苷的含量,黄芩苷在0.033~0.664μg范围内,线性关系良好(r=0.9999)。平均回收率为99.6%,RSD=1.4%。结论:薄层鉴别重复性好,专属性强,含量测定方法专属、简便、准确。     

防己黄芪颗粒的制备工艺与质量控制

目的:研究并建立防己黄芪颗粒的制备工艺与质量控制方法。方法:采用L9(34)正交试验法优选防己黄芪颗粒的制备工艺,采用薄层色谱法(TLC)对制剂中主要药物黄芪、防己等进行定性鉴别;采用HPLC-ELSD对防己黄芪颗粒中的黄芪甲苷进行含量测定。结果:按优选工艺生产的产品质量稳定;在薄层色谱中,各供试品色谱,在与对照品相应的位置上显相同颜色的斑点,阴性对照无干扰;含量测定结果显示,黄芪甲苷在1.487~10.497μg线性关系良好,r=0.9995(n=5),平均加样回收率为102.4%(RSD=2.01%,n=6)。结论:该制备工艺简便可行,质量稳定可控。     

补肾调周合剂的制备及质量控制研究

目的:建立补肾调周合剂质量控制方法。方法:采用薄层色谱法对当归、川芎、白芍进行定性鉴别,采用高效液相色谱法测定淫羊藿中淫羊藿苷含量。结果:薄层色谱对当归、川芎及白芍特征斑点定性鉴别清晰,供试品色谱中在与对照药材和对照品色谱相应的位置上显相同颜色的斑点;HPLC法以甲醇-水(55∶45)为流动相,检测波长270nm,淫羊藿苷含量在0.196μg-2.94μg范围内线性关系良好(r=0.9999),平均回收率为99.21%(RSD=1.41%,n=6)。结论:所建立的定性、定量方法准确、重现性好,可以作为该制剂的质量控制方法。     

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.     

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.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

Objective：To investigate the gene expression of osteoprotegerin（OPG） and osteoclast differentiation factor（ODF） in the bone tissue of patients with hip fracture due to osteoporosis. Methods：OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers（over 50 years old） with hip fracture（Observer Group） and 30 cases of hip facture sufferers with no osteoporosis（Control group） were analyzed with the Semi-Quantitative RT-PCR method. Results：The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion：Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

Objective：To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas（SPTP）. Methods：Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin（HE） staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results：Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin（9/9 cases）, AAT（9/9 cases）, NSE（9/9 cases）, ACT（7/9 cases）, CK20（2/9 cases）, CgA（1/9 cases）, S-100（3/gcases）, PR（4/gcases）, Syn（3/9 cases） and CD56（5/9cases）, negative in CEA and ER. Conclusion：SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

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.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

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.     

SCREENING FOR A 21-CHROMOSOME ABNORMALITY IN PREIMPLANTED EMBRYOS OF ELDERLY WOMEN

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.