超氧化物歧化酶对大鼠感染性脑损伤的内源性保护作用

测定脑组织丙二醛（ＭＤＡ）和６种超氧化物歧化酶（Ｔ－ＳＯＤ,ＣｕＺｎ－ＳＯＤ及Ｍｎ－ＳＯＤ）活性大鼠百日咳杆菌脑损伤中的变化,探讨ＳＯＤ的内源性脂质抗氧化作用。结果显示：菌液组（４ｈ,２４ｈ）脑含水量（ＷＣ）、伊文思蓝含量（ＥＢ）及Ｍｎ－ＳＯＤ活性均高于盐水对照组,Ｔ－ＳＯＤ和ＣｕＺｕ－ＳＯＤ活性低于盐水组（Ｐ〈０．０１）,ＭＤ基菌液４ｈ组明显增高,并分别与ＷＣ和ＥＢ旦显著正相关（ｒ＝０．９６５０     

反义寡核苷酸对正常和常压缺氧大鼠肺血流动力学的作用

筛选出针对内皮素－１（ＥＴ－１）前体基因反义硫代寡核苷酸片断（ＥＴＡＳＯＤＮ）,已证明ＥＴＡＳＯＤＮ能显著抑制培养细胞ＥＴ－１的生成（Ｐ〈０．０５）,通过实验观察侧脑室注射该片断对常氧和常压缺氧大鼠的作用,发现缺氧性肺动脉高压大鼠下丘脑ＥＴ－１含量显著高于常氧大鼠（Ｐ〈０．０５）;侧脑室内注ＥＴＡＳＯＤＮ能显著降低常氧和缺氧大鼠下丘脑ＥＴ－１水平（Ｐ〈０．０５）、降低常氧大鼠肺动脉平均压（Ｐｐａ）     

年龄相关性黄斑变怀血清过氧化脂质水平与超氧化物歧化酶…

对３５例年龄相关性黄斑变怀（ＡＭＤ）和３４例健康对照者进行过氧化脂质（ＬＰＯ）水平和血清超氧化物歧化酶（ＳＯＤ）活性的测定。ＬＰＤ检测采用测定其最终产物之一丙二醛（ＭＤＡ）含量。结果显示ＡＭＤ组ＭＤＡ高于对照组，差异显著（Ｐ〈０．０５）。ＳＯＤ在ＡＭＤ组偏低，但无统计学意义（Ｐ〉０．０５）。正常对照组ＭＤＡ与ＳＯＤ呈负相关（ｒ＝－０．４１３９，Ｐ〈０．０５），而ＡＭＤ组则否。说明ＡＭＤ患者抗氧化能     

老年雄性大鼠血清总超氧化物歧化酶活性,丙二醛含量和血浆雌？…

分别测定６月龄组和３０月龄组大鼠血清Ｔ－ＳＯＤ活性及ＭＤＡ含量变化和血浆Ｅ２、Ｔ４的含量变化,以探讨老年雄性大鼠与自然衰老相关的指标。结果表明：３０月龄雄性大鼠表Ｔ－ＳＯＤ活性和血浆Ｅ２、Ｔ含量明显低于６月龄雄性大鼠（Ｐ〈０．０１）,３０月龄雄性大鼠血清ＭＤＡ含量明显高于６月龄雄性大鼠（Ｐ〈０．０１）。     

肺癌患者血清丙二醛及超氧化物歧化酶的研究

测定了肺癌患者２８例、正常人３７例血清丙二醛（ＭＤＡ）的含量。结果：肺癌组高于正常对照组（Ｐ＜０．０５）；同时测定肺癌组２８例、正常对照组４９例血清Ｔ－ＳＯＤ（血清中ＳＯＤ总量）活性，肺癌组明显低于正常对照组（Ｐ＜０．０１）。另外，还测定２１例老年人血清Ｔ－ＳＯＤ活性，其活性低于正常对照组（Ｐ＜０．０５），但高于肿癌组（Ｐ＜０．０５）。     

多形性日光疹患者血清LPO及红细胞SOD活力水平测定

采用ＴＢＡ比色法、邻苯三酚自氧化法测定５３例多形性日光疹病人和５８例正常人血清ＬＰＯ，红细胞ＳＯ活性。结果显示：多形性日光疹病人血清ＬＰＯ值明显增高（Ｐ〈０．００１）；红细胞ＳＯＤ活性明显降低（Ｐ〈０．０５）；ＬＰＯ／ＳＯＤ值明显增高（Ｐ〈０．００１）；疾病组血清ＬＰＯ与红细胞ＳＯＤ活性变化无明显相关性（Ｐ〉０．０５）。提示活性氧自由基反应和脂质过氧化反应在多形性日光疹病过程中起一定作用。     

妊高征患者MDA SOD ET-1水平的变化

为探讨ＭＤＡ、ＳＯＤ活性及ＥＴ－１ 在妊高征发病中的作用,１９９６ 年１～１２月对在院住院分娩的妊高征患者３９例,正常晚孕妇女２４ 例,正常非孕妇女１４ 例进行血浆ＭＤＡ、ＳＯＤ活性及ＥＴ－１ 水平测定,同时测定产后３～７ 天血浆水平的变化。结果：正常晚孕组ＭＤＡ、ＳＯＤ活性及ＥＴ－１均高于非孕妇女（Ｐ＜ ０．０５）;妊高征组ＭＤＡ、ＥＴ－１高于正常晚孕组（Ｐ均＜ ０．０１）,ＳＯＤ活性则低于正常晚孕组（Ｐ＜ ０．０５）;重度妊高征分娩后３～７ 天ＥＴ－１、ＭＤＡ均低于产前（Ｐ均＜ ０．０５）,ＳＯＤ则高于产前（Ｐ＜ ０．０５）;ＭＤＡ、ＥＴ－１ 与平均动脉压呈正相关（ｒ＝ ０．４３９,Ｐ＜ ０．０１）,ＳＯＤ活性与平均动脉压呈负相关（ｒ＝ － ０．４５３,Ｐ＜ ０．０１）。表明机体内氧化抗氧化失衡与内皮细胞损伤在妊高征发病过程中起重要作用。     

老年糖尿病肾病中药治疗前后血脂,过氧化物歧化酶的变化

目的 研究益肾活血中药对老年临床糖尿病肾病（ＤＮ）的疗效和机制。方法 ６８例老年临床糖尿病肾病患者随机分为治疗组（３４例,服九糖药加益肾活血中药）与对照组（３４例,仅服降糖药）。测定治疗前后患者血脂、过氧化物歧化酶（ＳＯＤ）及血清过氧化脂质（ＬＰＯ）含量及２４ｈ尿蛋白定量的变化,并分别与３０名健康人组作比较。结果 老年临床糖尿病患者ＳＯＤ明显低于健康人组（Ｐ〈０．０５）。而血脂、ＬＰＯ及２４ｈ尿蛋白量均明显高于健康人组（Ｐ〈０．０１）。治疗４周后治疗组ＳＯＤ水平明显升高（Ｐ〈０．０５）,血脂、ＬＰＯ及２４ｈ尿蛋白定量明显下降,与对照组相比有显著性差异（Ｐ〈０．０５）。结论 益肾活血中药对抗过氧化损伤、防治老年ＤＮ有临床意义。     

原发性肝癌患者手术前后血浆T—SOD Mn—SOD CuZn—SOD活性含量的变化

测定了２４例原发性肝癌患者治疗前后血浆Ｔ－ＳＯＤ、Ｍｎ－ＳＯＤ、ＣｕＺｎ－ＳＯＤ活性，同时测定４５名正常对照者血浆的含量。经统计学分析，肝癌患者血浆Ｔ－ＳＯＤ、Ｍｎ－ＳＯＤ活性与正常对照组比较有显著性差异（Ｐ〈０．０５），手术治疗前与术后有显著性差异（Ｐ〈０．０５）；术前Ｔ－ＳＯＤ、Ｍｎ－ＳＯＤ活性明显高于正常对照组和术后，而术后两项均逐渐恢复正常，即与正常对照组无显著性差异（Ｐ〉０．０５），说明     

银屑病患者血清脂质过氧化物与超氧化物歧化酶含量测定

采用硫代巴比妥酸法和邻苯三酚自氧化法分别测定１６例寻常型银屑病（ＰＶ）与１０例红皮病型银屑病（ＰＥ）患者血清脂质过氧化物（ＬＰＯ）与超氧化物歧化酶（ＳＯＤ）水平。结果发现ＰＶ组血清ＬＰＯ升高（Ｐ〈０．０５），ＳＯＤ降低（Ｐ〈０．０５）。ＰＥ组血清ＬＰＯ升高更为显著，高于ＰＶ组（Ｐ〈０．０１），ＳＯＤ低子ＰＶ组（Ｐ〈０．０５）。两组ＬＰＯ与ＳＯＤ分别呈负相关（ＰＶ组ｒ＝－０．４３８，Ｐ〈０．０５，ｐ     

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.     

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.     

Scientific principles and rigorous processes should be followed in developing clinical guidelines for therapeutic interventions of integrative medicine

A clinical guideline for the therapeutic interventions of integrative medicine may be defined as a written document which states a series of recommendations on therapeutic interventions of integrative medicine for a special disease or condition. The guideline may provide assistance to medical professionals in making clinical decisions aimed at improving the clinical outcome of patients and reducing the costs of medical care（~＇4~. Recommendations issued by a guideline should be based on the best available evidence in both Western and Chinese medicine. For fulfilling this purpose, the development of clinical guidelines for therapeutic interventions in the field of integrative medicine should follow scientific principles and undergo a rigorous processes.