人血浆萘哌地尔浓度的高效液相色谱法测定

目的 研究人血浆萘哌地尔的高效液相色谱法（ＨＰＬＣ）测定。方法 血浆样品依次用６ｍｏｌ／ＬＨＣｌ，ＮａＯＨ处理，乙醚提取２次，色谱分析柱为粒径５μｍ，填料为ＥｃｏｓｐｈｅｒｅＣ１８，内标为美托洛尔，流动相为甲醇－乙腈－水－０．０２ｍｏｌ／ＬＫＨ２ＰＯ４（５５：２０：２２：３）ｐＨ４．１０。荧光检测器激发波长２９０ｎｍ，发射波长３４０ｎｍ。结果 最低检测浓度为１．０ｎｇ／ｍｌ天内及天间的变异系数为１     

新霉素A的双波长薄层扫描测定

新霉素Ａ的双波长薄层扫描测定何华，余江河，徐灵，倪坤仪，江莹中国医药工业杂志，１９９５，２６（１）：３２～３４将硅胶Ｇ用含０．２ｍｏｌ／ＬＮａＯＨ及０．０１ｍｏｌ／ＬＫＨ２ＰＯ４的０．７５％ＣＭＣ－Ｎａ溶液调匀制板，用于新霉素Ａ的双波长薄层扫描测定。...     

HPLC法测定牛黄清心丸中甘草酸含量

用ＨＰＬＣ法测定牛黄清心丸中甘草酸的含量。采用ＯＤＳ－５柱,４．６ｍｍ＊１５０ｍｍ,流动相为０．０５ｍｏｌ／ＬＫＨ２ＰＯ４（ｐＨ＝２．５）－ＭｅＣＮ（２１：１０）,流速为１．０ｍＬ／ｍｉｎ,检测波长２５４ｎｍ。检测量在０．５６４－２．０６８μ之间关系良好。     

反相高效液相色谱法测定Ca~（2＋），Mg~（2＋）－ATPase活力的方法

应用反相ＨＰＬＣ方法测定了大鼠心肌Ｃａ２＋，Ｍｇ２＋－ＡＴＰａｓｅ活力。高效液相色谱条件：Ｗａｔｅｒｓ－４８０高效液相色谱仪，ＷａｔｅｒｓＣ－１８高效反相色谱柱，流动相为０．０６６７ｍｏｌ／ＬＫＨ２ＰＯ４／Ｋ２ＨＰＯ４缓冲液（ｐＨ５．９２），流速１．５ｍｌ／ｍｉｎ，柱压３０００Ｐａ，检测波长２５４ｎｍ。方法简便，快速，灵敏度高，重复性好。     

RP—HPLC法测定异长春花碱注射液的含量

目的：建立了ＲＰ－ＨＰＬＣ法分离和测定异长春花碱注射液的含量。方法：ＳｐｈｅｒｉｓｏｒｂＣ１８柱，流动相０．０５ｍｏｌ／ＬＫＨ２ＰＯ４（用Ｈ３ＰＯ４调pＨ为４． ０）－乙晴（６０：４０），检测波长：２６８ｎｍ。结果：异长春花碱的线笥范围为０～１００ｕｇ／ｍｌ，ｒ＝０．９９９９，平均回收率为１００。９８％（n＝６），ＲＳＤ ＝３．７３％。结论：该法不需经提取分离，稀释后直接进样，简便，准确，适于生产中使     

反相高效液相色谱法测定大鼠血浆中替尼达普钠

目的：采用反相高效液相色谱法（ＲＰ－ＨＰＬＣ）测定大鼠血浆中替尼达普钠的含量，为其动物药代动力学研究提供方法学基础。方法：分析柱为４．０ｍｍ×２００ｍｍ的ＨｙｐｅｒｓｉｌＢＤＳ，Ｃ１８，柱径１０μｍ，流动相０．２３‰ＫＨ２ＰＯ４∶乙腈＝７０∶３０，含０．１％三乙胺，以Ｈ３ＰＯ４调节ｐＨ至７．６。流速１．０ｍｌ·ｍｉｎ－１，柱温３０℃，紫外检测波长为２３２ｎｍ，进样量１０μｌ。结果和结论：血浆中内源性杂质不干扰替尼达普钠和内标物的测定，相对回收率大于９４％，日内变异系数小于５％，日间变异系数小于１０％，血浆中最低检测浓度为０．１０ｍｇ·Ｌ１。该方法简便可靠。     

培福新注射液中培氟沙星和维生素C钠的高效液相色谱分析

建立了高效液相色谱法测定培福新注射液中培氟沙星和维生素Ｃ钠的含量，采用Ｃ１８柱，１０μｍ（大连化物所Ｓｐｈｅｒｉｓｏｒｂ），以乙腈－柠檬酸液（０．０５ｍｏｌ／Ｌ）－醋酸铵液（０．５ｍｏｌ／Ｌ）－１％磷酸水溶液（２２∶７５∶１∶２，内含０．１％三乙胺）为流动相，在紫外检测器２５４ｎｍ波长处进行检测。培氟沙星线性范围６０～２４０μｇ／ｍｌ，ｒ＝０．９９９７（ｎ＝５），维生素Ｃ钠线性范围１～９μｇ／ｍｌ，ｒ＝０．９９９９（ｎ＝５）。方法简便，结果满意。     

PAR比色法直接测定血清铁

４－（２－吡啶偶氮）间苯二酚（ＰＡＲ）与Ｆｅ２＋生成红色水溶性化合物。最大吸收峰为５００ｎｍ和７１５ｎｍ，用７１５ｎｍ作工作波长可提高选择性。线性范围０～７１．６ｕｍｏｌ／Ｌ，表现摩尔吸光系数为２．４８×１０４Ｌｍｏｌ－１ｃｍ－１ψ＝０．９９９６，测定４８例健康成人血清铁Ｘ１９．９３ｕｍｏｌ／Ｌ，正常参考值范围为１１．８～２８．０μｍｏｌ／Ｌ，平均回收率为１００．２％，批内ＣＶ为２．４％，批间ＣＶ为４．２％，与微机示波极谱法比较结果无差别（Ｐ＞０．０５）。该法灵敏、准确、选择性高，血清用血量少，不必除去蛋白，操作简单快速。     

用HPLC法同时测定洗必泰及有关杂质对氯苯胺的研究

采用反相高效液色谱法同时测定了洗必泰及有关杂质对氯苯胺浓度，用Ｚｏｒｂａｘ－Ｃ８柱，０．２ｍｏｌ／ＬＮａ Ｈ２ＰＯ４－甲醇为流动相，非那西丁为内标，２４０ｎｍ波长检测。本法简便准确，重现性好。洗必泰和对氯苯胺分别为１５－２００μｇ／ｍｌ深度范围内线性关系良好，最低检测限分别为１．３３μｇ／ｍｌ和７．５μｇ／ｍｌ，平均回收率分别为１００．１％和１０３．１％。     

氨氯西林胶囊有关物质检测与考察

目的：采用高效液相色谱法检测氨氯西林胶囊中有关物质含量，方法：以０．０２ｍｏｌ／ｌＫＨ２ＰＯ４缓冲液（ＰＨ＝５．０）－乙腈（７２：２８）为流动相，检测波长为２２５ｎｍ。结果：有关物质量为１．７３６％（ｎ＝６）。结论：方法重现性好，结果满意。     

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.