新伤贴质量标准的研究

目的建立新伤贴的质量控制方法。方法用薄层色谱法对新伤贴中的大黄、栀子、赤芍、冰片进行定性鉴别;采用高效液相色谱法测定盐酸小檗碱的含量。结果薄层色谱中斑点清晰,易于识别;盐酸小檗碱线性范围为0.049～0.730μg,r=0.9997,平均回收率为96.5%,RSD为1.3%。结论本方法简便,灵敏度高,可有效地控制新伤贴的质量。     

新疆苦豆子药材质量控制研究

目的通过测定水分、总灰分、酸不溶性灰分、生物碱薄层鉴别及含量测定来研究苦豆子药材的质量控制。方法用碘化铋钾试液显色的薄层反应法鉴别生物碱,按《中国药典》规定方法检测苦豆子的水分、总灰分、酸不溶性灰分,采用高效液相色谱(HPLC)法测定氧化苦参碱、氧化槐果碱的含量。结果建立了生物碱薄层鉴别方法及氧化苦参碱、氧化槐果碱高效液相色谱(HPLC)测定方法;确定了水分、总灰分、酸不溶性灰分的含量限度,根据测定结果苦豆子药材水分在5%～7%之间为适宜,总灰分在2.0%～3.5%,酸不溶性灰分在0.2%～0.3%之间为适宜。结论测定苦豆子药材的水分、总灰分、酸不溶性灰分、生物碱的薄层鉴别及含量测定,为了建立苦豆子药材质量控制提供了奠定基础。     

香连止泻片质量标准研究

目的：制订香连止泻片的薄层色谱鉴别与含量测定方法。方法：修订原标准黄连、白芍的薄层鉴别,增加厚朴、枳实的薄层鉴别,采用高效液相色谱法测定黄连中盐酸小檗碱的含量。结果：薄层色谱斑点清晰,重现性好盐酸小檗碱在0.030 66μg～0.613 2μg范围内线性关系良好。平均回收率为98.89%,RSD为1.4%。结论：本方法简便易行,重现性好。     

癣灵酊质量标准的研究

目的 对癣灵酊进行质量标准研究,提高其内在质量控制指标.方法 采用薄层色谱法对土荆皮、关黄柏、苦参、洋金花进行定性鉴别,采用HPLC法对处方中主要成分盐酸小檗碱进行含量测定.结果 土荆皮、关黄柏、苦参、洋金花的薄层色谱鉴别专属性强,均具有特征性的斑点,盐酸小檗碱平均回收率为99.5%(RSD=1.06),线性范围为0.062～1.109 μg(r=0.9999).结论 研究结果表明,本法简便、准确、专属性和重现性好,为癣灵酊内在质量控制提供了实际可行的方法.     

十一味抗异散鉴别和含量测定方法研究

目的建立中成药十一味抗异散的鉴别和含量测定的方法。方法采用薄层色谱法定性鉴别红花、金银花、牡丹皮．用高效液相色谱（HPLC）法测定盐酸小檗碱的含量。结果薄层色谱鉴别分离较好、斑点清晰、阴性对照无干扰;盐酸小檗碱在12～180μg/mL范围内呈良好的线性关系,r=0．9997,平均回收率（n=6）为98．57％,RSD=1．28％。结论所采用方法准确、可靠,重复性良好,能有效控制该制剂的质量。     

速效止泻胶囊的质量标准研究

目的:建立速效止泻胶囊的质量标准.方法:采用TLC法对处方中的拳参进行定性鉴别;采用HPLC法测定盐酸小檗碱含量.结果:TLC鉴别阴性无干扰;盐酸小檗碱含量测定的线性范围为0.2586～0.9051μg(r=0.9998,n=6),平均加样回收率为99.90%,RSD为0.4%.结论:方法操作简单,准确可靠,重现性好,可作为速效止泻胶囊的质量控制方法.     

阔叶十大功劳总生物碱提取及小檗碱含量测定

目的 建立阔叶十大功劳中总生物碱的提取工艺和小檗碱的含量测定方法.方法 通过正交试验确立提取总生物碱的最佳工艺条件,紫外分光光度法测定总生物碱含量;采用HPLC-UVD法,C18色谱柱(4.6 mm×250 mm,5μm),以甲醇-水(各含0.1％甲酸)为流动相,流速1 mL/min,柱温35℃,检测波长345 nm,测定小檗碱的含量.结果 最佳提取工艺为药材质量6倍量的80％乙醇、提取4次、每次2h;小檗碱在36.00～486.00 μg/mL范围内呈良好线性关系,平均回收率为98.0％,RSD为0.53％.结论 总生物碱的提取工艺回收率较高、稳定且重复性好;所建立的测定小檗碱含量的HPLC法简便、快速,结果准确可靠.     

炎可宁片的质量标准研究

目的:建立炎可宁片中大黄的薄层色谱鉴别及盐酸小檗碱含量的HPLC测定方法.方法:采用TLC法对大黄进行鉴别,采用HPLC法对炎可宁片中盐酸小檗碱含量进行测定.色谱柱:Shim-pack C18(4.6 mm×150 mm,5 μm);乙腈-0.1%磷酸(50∶50)(每100毫升加十二烷基磺酸钠0.1 g)为流动相,流速:1.0 ml/min,检测波长:265 nm;柱温:30℃.结果:TLC色谱中在与大黄素、大黄酚对照药材相应位置显相同颜色的斑点.HPLC色谱中,盐酸小檗碱进样量在1.59～15.94 μg范围内线性良好,平均回收率为99.94%,RSD=1.00%(n=6).结论:本文建立的方法方便、准确,可用于该制剂的质量控制.     

糖脂益片质量标准的研究

目的：建立糖脂益片的质量标准。方法：采用薄层色谱法定性鉴别糖脂益片中黄芪、黄连、山楂,采用高效液相色谱法（HPLC）测定糖脂益片中盐酸小檗碱含量。结果：薄层色谱法可检出黄芪、黄连、山楂,盐酸小檗碱在0.00624-0.03120mg/ml浓度范围内线性关系良好,r=0.9992,平均加样回收率为98.89%。结论：薄层色谱鉴别方法和HPLC法简便,易于操作,重现性好,结果稳定,可有效控制糖脂益片的质量。     

香连素片质量标准研究

目的建立香连素片的质量控制标准。方法采用薄层色谱法鉴别香连素片中的木香;采用高效液相色谱法测定香连素片中盐酸小檗碱的含量。结果在薄层色谱中检出了木香;盐酸小檗碱的进样量在0.0378~0.378μg范围内呈良好的线性关系(r=0.999 7),平均回收率为101.49%,RSD为1.97%(n=6)。结论本方法专属性强、准确、重现性好,可作为香连素片的质量控制标准。     

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.