枸橼酸咖啡因注射液细菌内毒素检查法的可行性研究

目的 建立枸橼酸咖啡因注射液的细菌内毒素检验方法 .方法参照《中国药典》2015年版四部细菌内毒素检查法进行试验和结果 判断.结果枸橼酸咖啡因注射液对鲎试剂与内毒素反应不产生干扰的最大浓度为0.5 mg/mL,当限值设定为0.25 EU/mg时,使用标示灵敏度为0.125 EU/mL或更高灵敏度的鲎试剂均可对本品进行细菌内毒素检查.结论 枸橼酸咖啡因注射液建立细菌内毒素检查法是可行的,可用于其质量控制.     

奥扎格雷钠注射液细菌内毒素检查法的研究

目的:研究奥扎格雷钠注射液的细菌内毒素检查方法。方法:参照中国药典2000年版收载的细菌内毒素检查法及指导原则进行干扰试验。结果:奥扎格雷钠注射液在稀释至0.5 mg/mL时,对鲎试剂的凝集反应无干扰作用,采用灵敏度为0.5 Eu/mL的鲎试剂可进行细菌内毒素检查。结论:可用细菌内毒素检查法控制奥扎格雷钠注射液的质量,本品细菌内毒素限值为1.0 EU/mg。     

枸橼酸芬太尼注射液细菌内毒素检查法

目的建立枸橼酸芬太尼注射液的细菌内毒素检查法。方法参照《中国药典》2005年版二部附录“细菌内毒素检查法”,用不同厂家的鲎试剂对不同批号的枸橼酸芬太尼注射液分别进行干扰试验,考察确立枸橼酸芬太尼注射液的细菌内毒素检查法。结果采用灵敏度为0.25EU/ml的鲎试剂,将本品稀释到0.01mg/ml以下,对鲎试剂的凝集反应无干扰。结论本品可用细菌内毒素检查法来控制内毒素,其细菌内毒素限值可定为50EU/mg。     

复方利多卡因注射液细菌内毒素检测的初步探讨

目的: 建立复方利多卡因注射液的细菌内毒素检查法。方法: 按《中国药典》2000年版(二部)附录收载的细菌内毒素检查方法及指导原则进行实验。结果: 复方利多卡因注射液对鲎试剂的凝集反应无干扰作用,用灵敏度0.5 EU/ml的鲎试剂检查细菌内毒素的方法可行有效。结论: 可以用细菌内毒素检查法来控制复方利多卡因注射液的质量。     

透明质酸钠注射液细菌内毒素检查法的研究

目的:建立透明质酸钠注射液的细菌内毒素检查法.方法:按2005版<中国药典>二部中的"细菌内毒素检查法",用不同厂家的鲎试剂对不同批号的透明质酸钠注射液分别进行干扰试验.结果:透明质酸钠注射液的检测浓度≤5 mg/ml时对细菌内毒素检查法无干扰.结论:透明质酸钠注射液按限值L=0.05 EU/ml进行细菌内毒素检查是可行的.     

鲎试剂方法检测注射用复合辅酶中细菌内毒素

目的:建立注射用复合辅酶细菌内毒素检查法。方法:按照中国药典2010年版(二部)附录ⅪE细菌内毒素检查法进行干扰试验。结果:用灵敏度λ为0.5EU/ml的鲎试剂进行实验,当注射用复合辅酶中辅酶Ⅰ的浓度为0.8μg/ml时,供试品不干扰鲎试剂与细菌内毒素的凝集反应。结论:使用鲎试剂方法检查注射用复合辅酶中细菌内毒素是可行的。     

左卡尼汀注射液细菌内毒素检查方法的研究

目的：建立左卡尼汀注射液细菌内毒素的检查方法。方法：按《中国药典》2005年版二部“细菌内毒素检查法”,用不同厂家的鲎试剂对不同批号的左卡尼汀注射液分别进行干扰试验。结果：左卡尼汀注射液稀释至浓度5mg/ml或以下的溶液对细菌内毒素检查法无干扰作用。结论：本方法对左卡尼汀注射液进行细菌内毒素检查是可行的。     

乳酸环丙沙星注射液细菌内毒素检查方法探讨

目的 通过实验建立乳酸环丙沙星注射液的细菌内毒素检查法以取代热原检查法。方法 用鲎试剂对乳酸环丙沙星注射液进行细菌内毒素检查。结果 乳酸环丙沙星注射液在13倍稀释中对灵敏度0.0625EU/ml的鲎试剂无干扰作用。结论 乳酸环丙沙星注射液的热原检查法可用内毒素检查法取代。     

舒血宁注射液的细菌内毒素检查方法探讨

目的:建立舒血宁注射液的细菌内毒素检查方法。方法:根据临床实际应用情况,合理地确定舒血宁注射液的内毒素限值。用不同厂家的鲎试剂与同厂家和不同厂家生产的舒血宁注射液分别进行干扰试验,考察舒血宁注射液对细菌内毒素检查的干扰作用,确定其最大无干扰浓度。结果:实验证明,舒血宁注射液稀释64倍后干扰作用完全消失,使用灵敏度为0.125EU/ml的鲎试剂对其进行细菌内毒素检查,结果全部符合规定。结论:使用鲎试剂凝胶法检查舒血宁注射液的内毒素是可行的,可以用细菌内毒素检查法取代热原检查法。     

舒血宁注射液的细菌内毒素检查方法探讨

目的：建立舒血宁注射液的细菌内毒素检查方法。方法：根据临床实际应用情况,合理地确定舒血宁注射液的内毒素限值。用不同厂家的鲎试剂与同厂家和不同厂家生产的舒血宁注射液分别进行干扰试验,考察舒血宁注射液对细菌内毒素检查的干扰作用,确定其最大无干扰浓度。结果：实验证明,舒血宁注射液稀释64倍后干扰作用完全消失,使用灵敏度为0.125EU/ml的鲎试剂对其进行细菌内毒素检查,结果全部符合规定。结论：使用鲎试剂凝胶法检查舒血宁注射液的内毒素是可行的,可以用细菌内毒素检查法取代热原检查法。     

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.