葛根异黄酮的抗氧化作用

通过葛根异黄酮对动物组织中的脂质过氧化产物（LPO）含量和超氧化物歧化酶（SOD）活性进行研究，探讨葛根异黄酮类化合物的抗自由基作用。体外实验表明，葛根异黄酮0．01～1.0g／L可明显抑制小鼠肝、肾组织及大白兔脑组织匀浆在振荡温育条件下引起的LPO升高，并有剂量效应关系。在1．0g／L的剂量时，对小鼠肝、肾及兔脑组织匀浆中LPO的抑制率分别达79．7％、84．7％和86．6％。体内实验表明，免经液氮冷冻致脑损伤脑水肿后，其血清及脑组织中的SOD活性明显降低，LPO含量明显升高。通过静脉注射不同剂量的葛根异黄酮，在不同时间测定其血中及脑组织中SOD活性及LPO含量，结果表明，葛根异黄酮对降低脑水肿动物血、脑组织中LPO含量有明显作用，而且对提高动物血、脑组织中SOD活性有极显著作用。     

电离辐射对豚鼠组织、器官中SOD、LPO含量的影响

目的　观察电离辐射对豚鼠组织、器官中SOD、LPO含量的影响。方法　豚鼠经60 Coγ射线照射后 ,对脑、心脏、肝脏、脾脏进行预处理 ,采用Misra等肾上腺素自氧法测定SOD活力 ,采用Uchiyama等法测定LPO含量。结果　60 Coγ射线能明显降低豚鼠上述组织、器官中SOD的活力 ,LPO含量显著上升 ;而肝脏中SOD活力明显高于脑、心脏和脾脏。结论　电离辐射能明显降低豚鼠组织、器官中SOD活力、提高LPO含量 ;肝脏中SOD活力明显高于脑、心脏和脾脏     

强迫症与活性氧自由基的关系研究

目的探讨脂质过氧化和氧自由基酶活性变化在强迫症病理机制中的作用.方法测定30例强迫症患者和30例正常对照血中SOD、GSH-PX活性、GSH含量和血清中LPO含量.结果强迫症组LPO含量、SOD活性明显高于正常对照组,GSH含量则显著降低(P＜0.05).强迫症组SOD、GSH-PX与LPO,SOD与GSH-PX均呈显著直线正相关(P＜0.05～0.01);正常对照组GSH-PX与LPO呈显著直线正相关.多元逐步回归分析显示强迫症组LPO与SOD含量的改变具有相关性(P＜0.01);对照组LPO含量变化则与GSH-PX相关(P＜0.01).结论提示强迫症患者体内存在自由基代谢异常.     

电离辐射对豚鼠组织、器官中SOD、LPO含量的影响

目的观察电离辐射对豚鼠组织、器官中SOD、LPO含量的影响。方法豚鼠经^60Coγ射线照射后，对脑、心脏、肝脏、脾脏进行预处理，采用Misra等肾上腺素自氧法测定SOD活力．采用Uchiyama等法测定LPO含量。结果^30Coγ射线能明显降低豚鼠上述组织、器官中SOD的活力，LPO含量显著上升；而肝脏中SOD活力明显高于脑、心脏和脾脏。结论电离辐射能明显降低豚鼠组织、器官中SOD活力、提高LPO含量；肝脏中SOD活力明显高于脑、心脏和脾脏。     

川芎嗪对黄褐斑患者血脂过氧化物、超氧化物歧化酶含量的影响

目的：研究川芎嗪对黄褐斑患者血脂过氧化物（LPO）、超氧化物歧化酶（SOL）含量的影响。方法：将60例黄褐斑患者随机分为两组，治疗组32例，对照组28例。治疗组每天静脉滴注川芎嗪160mg,疗程15天，测定治疗组静脉滴注川芎嗪前后LPO、SOD的含量变化，对照组直接从静脉取血测定LPO、SOD的含量。结果：川芎嗪治疗后，黄褐斑患者LPO含量明显降低，SOD含量明显升高，黄褐斑症状也明显改善。结论：川芎嗪能明显降低黄褐斑患者LPO含量，升高SOD含量，对治疗黄褐斑有较高的临床实用价值。     

赤阳子对老龄大鼠机体SOD及LPO的影响

观察给予赤阳子对大鼠红细胞和组织中超氧化物歧化酶（SOD）活性及血清和组织中过氧化脂质（LPO）含量的影响。利用邻苯三酚自氧化法测定SOD；硫代巴比妥酸（TBA）比色法测定LPO含量、结果表明，给赤阳子组SOD活性比对照组有显著提高，而LPO含量显著降低。说明具有一定的抗衰老作用。     

慢性肾衰中医虚实辨证与脂质过氧化物、超氧化物歧化酶的关系研究

目的：探讨CRF中医虚实辩证与LPO、SOD关系，寻求一种延缓慢性肾衰进展的中西医结合治疗方法。方法：采用硫代巴比妥酸比色法和差劲胺法分别测定LPO含量和SOD活性。结果：CRF组血清LPO含量、总SOD、CuZn-SOD、Mn-SOD活性均显著高于正常对照组。CRF偏实组LPO含量、SOD活性升高更为明显，与偏虚组有显著差异。结论：CRF偏实患者也应注重使用清除自由基的药物，以阻止自由基的破坏。     

冠心病病人SOD,GSH·PX活性及LPO含量的变化

测定了正常人及冠心病病人红细胞内超氧化物歧化酶(SOD)、血中谷胱甘肽过氧化物酶(GSH·PX)活性及脂质过氧化物(LPO)含量。结果表明,冠心病病人SOD,GSH·PX活性低于正常人,而LPO含量高于正常人,且心肌梗塞病人较心绞痛病人变化更为显著。SOD,GSH·PX均与LPO呈负相关。提示自由基和LPO的增多在冠心病的发病过程中起重要作用。     

强迫症与活性氧自由基的关系研究

目的：探讨脂质过氧化和氧自由基酶活性变化在强迫症病理机制中的作用。方法：测定30例强迫症患者和30例正常对照血中SOD,GSH－PX活性,GSH含量和血清中LPO含量。结果：强迫症组LPO含量,SOD活性明显高于正常对照组,GSH含量则显著降低（P＜0．05）,强迫症组SOD,GSH－PX与LPO,SOD与GSH－PX均呈显著直线正相关（P＜0．05－0．01）,正常对照组GSH－PX与HPO呈显著直线正相关。多元逐步回归分析显示强迫症组LPO与SOD含量的改变具有相关性（P＜0．01）;对照组LPO含量变化则与GSH－PX相关（P＜0．01）。结论：提示强迫症患者体内存在自由基代谢异常。     

肺良恶性疾病患者血LPO、SOD、GSH-Px测定及临床意义

测定了10例健康人、20例肺良性疾病及15例肺癌患者血LPO含量、GSH-Px活性、SOD活性及SOD/LP0比值,结果①肺癌组SOD活性,SOD/LPO比值均显著低于正常组及良性组(P<0.01;<0.05;<0.01;<0.01);②正常组及良性组SOD活性及SOD/LPO比值差别无显著性(分别P>0.05);③LPO含量及GSH-Px活性三组之间差别无显著性(分别P>0.05);④若将正常组SOD及SOD/LPO比值的均数分别减去一个标准差(x-s)作为肺癌的诊断试验阳性标准,其灵敏度分别为73.3％和73.3％,特异度为80％和70％;诊断符合率为77.1％和71.4％。上述结果提示肺癌的发生发展可能与氧自由基损伤有关。通过SOD活性及SOD/LPO比值的测定可作为鉴别肺部良恶性疾病的辅助诊断手段之一,对肺癌的辅助诊断也有一定价值。     

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.     

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…     

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.     

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.