反相高效液相色谱-二极管阵列检测蛋黄中的角黄素和虾青素

目的建立蛋黄中角黄素及虾青素的反相高效液相色谱-二极管阵列同时检测法,探讨样品前处理方法及色谱条件的优化。方法蛋黄样品以乙腈超声提取,冷冻除脂,固相萃取净化并氮吹定容后以C18柱分离,乙腈为流动相,二极管阵列检测器于470nm波长下测定。结果实验表明角黄素及虾青素在0.5～100μg/mL浓度范围内线性关系良好(r≥0.998),日内精密度≤3.6%,日间精密度≤5.2%,两者平均加标回收率分别为91.5%及88.7%,检出限分别为0.035μg/mL及0.027μg/mL。结论本法简便快速,灵敏度高,易于推广,适用于蛋黄中角黄素及虾青素的同时检测。     

高效液相色谱法测定人血浆中甲苯咪唑含量

目的建立固相萃取、反相高效液相色谱测定人血浆中甲苯咪唑的方法。方法血浆加入阿苯哒唑为内标,以0.5mol/L的硼砂NaOH缓冲液3ml碱化后经乙醚提取,固相萃取,进行HPLC测定,采用HypersilBDSC18(4.6mm×200mm5μm)色谱柱,流动相为甲醇-0.1mmol/L(NH4)2SO4溶液(60∶40,V/V);流速1.0ml/min;检测波长310nm。结果甲苯咪唑血药浓度为0.05～1.6μg/ml,峰面积与血药浓度呈线性关系,方法平均回收率为97.21%。平均RSD为3.56%;最低检测限为0.02μg/ml。结论该方法符合生物样品分析要求,为甲苯咪唑的体内含量测定提供了一种简便、准确、灵敏度高的分析方法。     

HPLC用于食品中维生素A和维生素E的测定

目的建立反相高效液相色谱-二极管阵列检测法同时测定食品中维生素A和维生素E(α-生育酚)的方法。方法取一定量食品样品加入无水乙醇、氢氧化钾及焦性没食子酸,80℃水浴皂化30min,石油醚提取后,氮气吹扫浓缩致干后用流动相溶解,进样5μl分析;色谱条件色谱柱SupelcoC18柱(10cm×2.1mm,5μm),流动相甲醇水(93+7),流速0.4ml/min,柱温40℃,DAD扫描波长范围210~370nm,检测波长325nm(VitaminA)和294nm(VitaminE)。结果维生素A在1.0~100.0μg/L浓度范围内线性良好,相关系数r=0.9998,维生素E在0.10~10.0mg/L浓度范围内相关系数r=0.9991。维生素A和维生素E的平均回收率在96%以上。结论该法快速、灵敏、准确,样品处理简便易行,可用于食品中脂溶性维生素A和E的同时测定。     

反相高效液相色谱法测定甲磺酸帕珠沙星原料及其制剂含量

目的采用反相高效液相色谱法测定原料、制剂中甲磺酸帕珠沙星含量。方法色谱柱:Hypersil C18 (5μm,4.6mm×250mm);流动相:0.1%磷酸(加0.0805g磷酸氢二钾)/乙腈(85/15);流速:1.0ml/min;柱温:30℃;紫外检测波长:243nm。结果5-1 000μg/ml内峰面积与测定浓度呈良好的线性关系。样品溶液在15h内稳定,精密度RSD<1.0%,n=5。回收率均值分别为100.08%和99.67%。结论采用反相高效液相色谱法测定原料及其制剂中甲磺酸帕珠沙星含量方法准确,结果可靠。     

固相萃取反相高效液相色谱法测定环孢素A滴眼剂中环孢素A的含量

目的:应用固相萃取改进环孢素A滴眼剂中环孢素A含量的测定方法。方法:环孢素A滴眼剂中的环孢素A经固相萃取,以反相高效液相色谱法测定。色谱柱Waters Sep—Pak C18萃取小柱,Nova—Pak C18分析柱;流动相乙腈:甲醇:水(265:22:120);流速0.5ml/min;检测波长206nm。结果:该法回收率为98.6％,相对标准差(RSD)为2.4％,线性范围为0.5-40μg/ml,r=0.9993。结论:该法快速、敏感、高效,可用于环孢素A滴眼剂中环孢素A含量的测定。     

固相萃取RP-HPLC测定小鼠肝脏组织中的德氮吡格

目的:建立小鼠肝脏组织中德氮吡格(Tetrazanbigen)的反相高效液相色谱(RP-HPLC)测定方法.方法:精密称取小鼠肝脏组织,匀浆后同相萃取(Solid phase extraction,SPE).液相色谱采用Lichrospher C18色谱柱(4.6mm×250mm,5μm),以甲醇-0.1%三乙胺水溶液(pH6.5)(体积比90:10)为流动相,流速1.0ml/min,检测波长260 nm,进样量20 μl.结果:实验表明,肝脏组织匀浆液中德氮吡格在2～20μg/ml范围内与峰面积呈良好的线性关系(r=0.999 3),平均回收率为106.47%.最低定量限为1.0μg/ml.结论:本文建立的固相萃取RP-HPLC方法简便、准确、选择性和重现性好,适合于德氮吡格的肝脏组织浓度检测.     

固相萃取-反相HPLC荧光法快速测定血浆中氟罗沙星

目的建立固相萃取-反相HPLC荧光法快速测定人血浆中氟罗沙星的方法。方法采用C18固相萃取小柱萃取血浆中的氟罗沙星。色谱柱为ODS-BP柱(5μm,250 mm×4.6 mm),流动相为含1.31 g/L L-异亮氨酸和0.80 g/LCuSO4的水溶液-甲醇(80∶20,V∶V),激发波长为280 nm,发射波长为504 nm,流速为0.8 ml/min。结果该方法在0.4-20μg/ml浓度范围内线性关系良好(r=0.999 3),最小检测限50 ng/ml,萃取回收率和方法回收率分别为89.52%和100.45%,高、中、低3个浓度的日内RSD为3.2%,日间RSD为1.5%。结论该法血样处理简单,干扰小,灵敏度高,精密度好,可用于该药物体内监测的快速测定。     

反相高效液相色谱法测定人血清中奥卡西平活性代谢产物的浓度

目的建立反相高效液相色谱法测定人血清中奥卡西平(OXC)活性代谢产物MHD的浓度。方法收集血清样品经甲醇沉淀蛋白后,采用Inert Sustain C18(5μm,4.6×150 mm)色谱柱,流动相为甲醇-水(35:65),流速:0.8 mL/min,检测波长:210 nm,柱温:40℃,进样体积:20μL。结果血清中内源性物质对样品测定无干扰,MHD在4.8~38.4μg/mL线性关系良好,回归方程为:A=13968.3C-13730.7,r=0.9990。MHD的低、中、高3种浓度平均回收率均95%,日内、间RSD均3%(n=5)。结论反相高效液相色谱法简便、准确、灵敏度高,适用于人体内奥卡西平活性代谢产物MHD的血药浓度监测。     

高效液相色谱法测定川芷头痛丹中的川芎嗪

用反相高效液相色谱法测定了川芷头痛丹中川芎嗪的含量,色谱柱为μ-Bondapok C_(18)(5μm),流动相为甲醇:水(82:18),紫外检测波长280nm,线性范围在0.0275μg—0.0826μg,相关性良好。     

HPLC法测定葛根中大豆苷元的含量

目的对葛根中大豆苷元进行质量控制。方法采用高效液相色谱法测定葛根中大豆苷元的含量。高效液相色谱条件为色谱柱:用Agilent Zorbax SB C18(150×4.6mm,5μm)色谱柱;流动相:甲醇-水(35:65)作为流动相;检测波长:250nm。结果高效液相色谱测定大豆苷元在0.28μg-443.08μg范围内呈良好线性关系,平均回收率为97.22%,RSD=1.5%。结论该方法简便易行,重现性好,可用于葛根中大豆苷元的质量控制。     

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.     

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.     

Electro-Acupuncture Combined with the Trigger Point Needle-Embedding for Treatment of Primary Trigeminal Neuralgia in 31 Cases

In recent years, the author of this essay has applied electro-acupuncture combined with the trigger point needle-embedding for treatment of primary trigeminal neuralgia in 31 cases, yielding satis- factory results as reported in the following.     

Investigation of Matrix Metalloproteinase -1, 2 and tissue inhibitor of matrix metalloproteinases-1 in Endometriosis

Objective： To explore the role of matrix metalloproteinase-1,2 （MMP-1, MMP-2） and tissue inhibitor of matrix metalloproteinases-1 （TIMP-1） in endometriosis. Methods： The eutopic and ectopic endometria from 40 subjects suffering from endometriosis and regular.endometria from 40 subjects （excluding endometriosis） were collected and examined by in situ hybridization technology and western blot assay. Results： Both expressions of MMP-1 and -2 were stronger in ectopic endometrium and eutopic endometrium than in normal endometrium. On the contrary, the expression of TIMP-1 in ectopic endometrium and eutopic endometrium was lower. The differences were significant （P 〈 0.01 ）. Moreover, there was no relationship among the expressions of MMP-1, 2 and TIMP-1 in ectopic endometrium. Conclusion： The expressions of MMP-1, 2 and TIMP-1 lose balance and lack of periodic changes in ectopic endometrium , which explains the biological invasive behavior of endometriosis. It was suggested-that regulating the balance between the MMPs and TIMP-1 should be an ideal therapeutic target to endometriosis.     

Shi Da-zhuo (史大卓) —An outstanding cardiologist of integrative medicine

Prof. SHI Da-zhuo, Ph.D., male, was born on March 20, 1960. Prof. SHI entered the Ph.D. program in 1990 at the China Academy of Chinese Medical Sciences under the supervision of Prof. CHEN Ke-ji, majoring in the treatment of cardiovascular diseases. After receiving his Ph.D. degree in 1993, Prof. SHI started working at the Cardiovascular Center in Xiyuan Hospital affiliated to China Academy of Chinese Medical sciences.     

Persist in and Carry Forward the Integrative Medical Research——Speech at the 6th National General Congress of Chinese Association of Integrative Medicine by Academician CHEN Zhu,Minister of Ministry of Health

The 6th National General Congress of Chinese Association of Integrative Medicine （CALM） was convened at 19-20, April 2008 in Beijing. Academician CHEN Zhu, the minister of Ministry of Health indicated at the congress that the integration of Chinese and Western medicine is very well in keeping with the situation of our country and the general rule of development in medical science; and as a good integration of Chinese medicine and Western medicine, it is mutually beneficial and advantageous to both of them. Seeing the creativity shown in integrative medical investigation in theoretic and methodological sides, we should and must persist in and develop it.