鲁米诺-高碘酸钾化学发光体系测定维生素B12

目的:基于维生素B12在碱性条件下对鲁米诺-高锰酸钾化学发光体系有较强的抑制作用,建立测定维生素B12的新方法?方法:联用流动注射技术,利用该化学发光体系对药片中维生素B12的含量进行测定?结果:该方法测定维生素B12的线性范围为7.4 × 10-8~7.4 × 10-6 mol/L,检出限为2.0 × 10-8 mol/L,维生素B12测定重复性实验的相对标准偏差为1.28%(n = 11)?结论:鲁米诺-高锰酸钾化学发光体系用于维生素B12的检测具有较高灵敏度,可用于测定维生素B12的含量?     

静态化学发光淬灭分析法测定血清硒

目的:探讨硒对鲁米诺(Luminol)-过氧化氢-高锰酸钾发光体系的阻化作用并实现血清硒的化学发光测定。方法:采用GD-1型液相化学发光仪测定鲁米诺-过氧化氢-高锰酸钾反应体系的化学发光强度,建立化学发光强度与溶液中硒浓度的标准曲线,从而实现血清硒的静态化学发光淬灭分析测定。结果:本方法的检出限为6.5×10-4μg/ml,线性范围为1.5×10-3～6.5×10-1μg/ml;平均回收率为94.21%,变异系数为2.97%。结论:本方法是一种简便、准确的血清硒检测方法,对Mg2+、Cu2+等多种离子的干扰实验表明方法具有较好的选择性。     

流动注射化学发光法检测食品中SO2含量的研究

目的:建立一种食品中SO2的化学发光快速检测法?方法:利用SO2定量的与酸性高锰酸钾反应,从而减弱高锰酸钾-间苯二酚的化学发光,其减弱值与被检物浓度有关?结果:在最优化条件下,SO2浓度在0.04~40.00 mg/L范围内与发光强度减弱值呈较好的线性关系?方法的检测限为0.03 mg/L (S/N=3)?结论:该方法可用于食品中SO2分析?     

血液中长春新碱的快速检测

目的 建立一种快速、准确测定血液中长春新碱含量的测定方法.方法 在酸性条件下长春新碱与高锰酸钾产生化学发光的行为,对影响化学发光强度的因素进行了实验和探讨,罗丹明6G能显著增强体系的发光强度.结果 线性范围为1.21 × 10^-7mol·L^-1～1.21×10^-5mol·L^-1; RSD为1.28%（n=12）;检测限为4.8×10^-mol·L^-1.该体系已经应用于血样中长春新碱含量的测定,结果令人满意.此外,在酸性高锰酸钾-长春新碱化学发光体系光谱学研究的基础上,探讨了该体系的化学发光反应机理.结论 该方法处理简单,操作简便,便于快速、准确的检测.     

化学发光法测定盐酸雷诺嗪含量

目的:建立快速检测盐酸雷诺嗪的化学发光法.方法:在硫酸介质中,盐酸雷诺嗪对Ce(Ⅳ)-Na2SO3化学发光体系有较强的抑制作用,且抑制的程度与盐酸雷诺嗪的质量浓度在一定范围内成良好的线性关系,据此建立了一种测定盐酸雷诺嗪的化学发光分析方法.结果:该法的线性范围为1.0×10-6～1.0×10-4kg/L,检出限为7.7×10-7kg/L.对4.0×10-6kg/L盐酸雷诺嗪测定的相对标准偏差为1.45%(n=11).结论:本方法快捷、简便且具有较高的灵敏度,适用于盐酸雷诺嗪缓释片中盐酸雷诺嗪的测定.     

大别山区桔梗种子萌发及储藏条件的研究

目的研究桔梗种子的最适发芽条件及储藏条件。方法利用不同光照时长、不同发芽温度、不同试剂的浓度梯度、不同发芽床、不同储存温度等处理,对桔梗种子进行发芽试验,测定其发芽率、发芽势、发芽指数。结果在25℃、12h光照条件下桔梗种子发芽率最高,为90.83%;赤霉素能显著促进桔梗种子萌发,200mg/L为最佳浸种浓度,高浓度的高锰酸钾、聚乙二醇均不同程度的抑制桔梗种子的萌发,细胞分裂素起显著的抑制作用;不同发芽床对桔梗种子萌发影响显著;-20℃储存桔梗种子的发芽率最高,为94.44%。结论桔梗种子的最佳发芽条件为25℃、12h光照条件下用滤纸培养;最佳试剂为200mg/L的赤霉素;最适储存温度为-20℃。     

那格列奈的流动注射化学发生法测定

目的:建立那格列奈流动注射化学发光法测定的新方法.方法:在硫酸介质中,利用高锰酸钾能直接氧化那格列奈产生较强的化学发光,结合流动注射技术,测定那格列奈的含量.结果:高锰酸钾直接氧化那格列奈产生的化学发光强度与那格列奈含量有很好的线性关系.该法线性范围为8.0×10-9～5.0×10-7g/mL,检出限为3.9×10-9g/mL,对1.0×10-7g/mL的那格列奈连续进行11次平行测定,相对标准偏差为1.2%,且重现性较好.结论:用流动注射化学发光法测定那格列奈,操作简单、快速、灵敏度高.     

基于流动注射化学发光法建立高灵敏检测血浆头孢哌酮的方法研究

目的 建立流动注射化学发光法测定血浆头孢哌酮的新方法.方法 在碱性介质中,头孢哌酮对铁氰化钾与鲁米诺化学发光体系有明显的增敏作用,据此建立了一种测定头孢哌酮的流动注射化学发光新方法,并对分析条件进行优化.通过方法学评价及对血浆头孢哌酮的测定,评估建立方法的性能.结果 在确定的最佳实验条件下,该分析体系的相对化学发光强度的变化与头孢哌酮的浓度在0.2×10-5～5.2×10-5 g/mL呈良好的线性关系,检测限为7.1×10-7 g/mL.对含3.0×10-5 g/mL和4.0×10-5 g/mL头孢哌酮的溶液分别平行测定11次,测定结果的相对标准偏差分别为2.49％和0.51％.结论 本方法分析成本低,灵敏度高、分析速度快,可用于血浆中头孢哌酮浓度的测定.     

甲磺酸酚妥拉明注射液在健康人体的药代动力学研究

目的 考察口腔局部麻醉反转剂甲磺酸酚妥拉明注射液在健康人体的药代动力学（PK）特征。方法 16例受试者随机分入上前牙粘膜下浸润麻醉组（A组）和下牙槽神经阻滞麻醉组（B组）,每组8例,分3个周期依次接受0.90 mL、1.80 mL、3.60 mL的2%盐酸利多卡因+1∶100 000肾上腺素进行局部麻醉,30 min后在同一部位按照局麻药的相同给药方法,依次注射甲磺酸酚妥拉明注射液0.20 mg、0.40 mg、0.80 mg,于每周期注射前5 min至注射后15 h中16个时点各采静脉血3 mL,采用超高效液相色谱-质谱/质谱法（UPLC-MS/MS）,以d4-盐酸酚妥拉明为内标（IS）,测定血浆中酚妥拉明的浓度,采用非房室模型计算PK参数。观察不良事件,评估试验用药物的安全性。结果 各剂量组均于注射后12~13 min达峰浓度,不同部位局部给药的体内过程基本没有差异,可将其视为相同的口腔局部给药方式,峰浓度(C_max)、0到t时间曲线下面积（AUC_0-t）、0到无穷大时间曲线下面积（AUC_0-∞）均随给药剂量成比例增加,半衰期为3.84~4.07 h,清除率（CL）约为190 L/h,甲磺酸酚妥拉明注射液在0.20~0.80 mg剂量范围内基本具有线性动力学特征。不良事件主要为注射部位疼痛、头晕、心悸等,均为轻度。结论 甲磺酸酚妥拉明注射液C_max、AUC_0-t、AUC_0-∞均具有线性动力学特征,安全性良好,值得口腔科临床推广应用。     

基于流动注射化学发光法建立高灵敏检测血浆头孢哌酮的方法研究

目的 建立流动注射化学发光法测定血浆头孢哌酮的新方法.方法 在碱性介质中,头孢哌酮对铁氰化钾与鲁米诺化学发光体系有明显的增敏作用,据此建立了一种测定头孢哌酮的流动注射化学发光新方法,并对分析条件进行优化.通过方法学评价及对血浆头孢哌酮的测定,评估建立方法的性能.结果 在确定的最佳实验条件下,该分析体系的相对化学发光强度的变化与头孢哌酮的浓度在0.2×10-5～5.2×10-5 g/mL呈良好的线性关系,检测限为7.1×10-7 g/mL.对含3.0×10-5 g/mL和4.0×10-5 g/mL头孢哌酮的溶液分别平行测定11次,测定结果的相对标准偏差分别为2.49％和0.51％.结论 本方法分析成本低,灵敏度高、分析速度快,可用于血浆中头孢哌酮浓度的测定.     

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.     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

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.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.     

Dr.Zhang Ren's Experience in the Acupuncture Treatment of Different Diseases with the Same Therapeutic Principle

Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.     

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.