钙拮抗剂MN9202对高脂血症大鼠的影响

研究ＭＮ９２０２（６－二甲基－４（３－硝基苯基）－１,４－二氢－３,５－吡啶二羧酸－３－甲酯－５－正酯）对高脂血症和动脉粥样硬化的治疗效果及其机制。方法４０只ＳＤ大鼠随机分为正常组,高脂组,ＭＮ９２０１１,３和５ｍｇ．ｋｇ＾－１组。每日记录饮食,体质量;每月测量血压．３ｍｏ后测血浆胆固醇（ＣＴ）,甘油三脂（ＴＧ）,低密度脂蛋白（ＬＤＬ－ｃ,高密度脂蛋白（ＨＤＬ－ｃ）,血清丙二醛（ＭＤＡ）和超氧化物     

k—硒化卡拉胶对大鼠红细胞超氧化物歧化酶活性及膜蛋白组分…

大鼠ｉｇｋ－硒化卡拉胶（１４０ｍｇ．ｋｇ＾－＾１．ｄ＾－＾１，，７０ｍｇ．ｋｇ＾－＾１．ｄ＾－＾１和３５ｍｇ．ｋｇ＾－＾１．ｄ＾－＾１×３０ｄ），测定各组大鼠红细胞超氧化物歧化酶（ＳＯＤ）活性以及膜蛋白组分高分子多聚物（ＨＭＰ）含量变化。结果表明：大鼠ｉｇｋ－硒化卡胶（１４０ｍｇ．ｋｇ＾－＾１．ｄ＾－＾１×３０ｄ）可显著提高ＳＯＤ活性（Ｐ＜０．０５），而对膜蛋白组分ＨＭＰ无显著影响（Ｐ＞０．０５）     

乙酰水杨酸对实验性动脉粥样硬化形成过程中脂代谢的影响

雄性家兔３４只，体重１．５－２．５ｋｇ，随机分为３组喂养，正常组（１０只）饲以基础饲料，模型组（１２只）加饲胆固醇１．５ｇ．ｄ＾－１／只，预防级（１２只）加饲胆固醇１．５ｇ．ｄ＾－只及乙酰水杨酸ＡＳＡ７．５饲ｍｇｄ＾－１／ｋｇ，持续３个月。结果显示，与同模型组相比，预防组血浆ＴＣ、ＬＤＬ－Ｃ、ＡｐｏＢ水平明显下降，ＨＤＬ－Ｃ／ＴＣ升高，主动脉组织Ｃｈ、ＡｐｏＢ及肝组织Ｃｈ含量减少，主动脉粥样硬化程     

抗高血压药物对自发性高血压大鼠降压及逆转左室肥厚作用

目的使用４种抗高血压药物治疗自发发性高血压大鼠（ＳＨＲ）探讨血压和左室肥厚之间的关系。方法ＳＨＲ４２只雌性，周龄１６周，随机分为６组，（１）高血压基础对照组，在１６周时处死观察有关指标，（２）高血压对照组，（３）卡托普利组（１００ｍｇ／ｋｇ．ｄ＾－１）（４）培哚普利组（５ｍｇ／ｋｇ．ｄ＾－１）（５）双氢克尿塞组（１００ｍｇ／ｋｇ．ｄ＾－１）（６）普萘洛尔组（４０ｍｇ／ｋｇ．ｄ＾－１）给药１６周，观     

^153Sm树脂微球家兔体内的实验研究

将３种类型＾１５３Ｓｍ－树脂微球（＾１５３Ｓｍ－ＲＴＭＳ）穿刺注入３组家兔肝脏局部，用ＳＰＥＣＴ分别于注射后１ｈ，２ｄ，３ｄ，４ｄ，５ｄ拍摄全身平面影像，在不同像上勾画ＲＯＩ，计算总流失率（Ｌ％）和脏摄取率（Ｕ％）结果表明，未处理型和明胶处理的＾１５３Ｓｍ－ＲＴＭＳ的总流失率（Ｌ％）和在各脏器的摄取率（Ｕ％）皆随时间的推移逐渐升高，其中全身骨摄取率（Ｕ％）５天后可高达２０％，而包被处理型＾１５３Ｓ     

胃肠外营养与地塞米松协同调节肺癌细胞周期的初步探讨

采用胃肠外营养（ＰＮ）、地塞米松（ＤＭ）及ＰＮ＋ＤＭ对３６只人肺腺癌裸鼠模型ＬＡＸ－８３肿瘤细胞中中期细胞百分率（Ｓ％）的影响，ＰＮ组予１２．５４ｋＪ／ｋｇ＾－１．ｄ＾－１＋氮量０．２ｇ／ｋｇ＾－１．ｄ＾－１，ＤＭ组予２０μｇ／ｄ，对照组予生理盐水，分２次早晚腹腔注射，用ＦＣＭ测定Ｓ％，结果，２４ｈ，ＰＮ＋ＤＭ组的Ｓ％增加最大，显著高于对照组，提示ＰＮ＋ＤＭ的联合作用。２４ｈ后对Ｓ％增加有协同作用     

普萘洛尔,维拉帕米和卡普托利对L—甲状腺素性心肌肥厚的消退…

大鼠连续口服Ｌ－甲状腺素４ｍｇ．ｋｇ＾－１×７ｄ可形成心肌肥厚,高甲状腺素状态下,心肌去甲肾上腺素（ＮＥ）增加,交感神经兴奋而使细胞内Ｃａ＾２＋增加,其表现为线粒体ａ＾２＋,Ｍｇ＾２＋－ＡＴＰ酶活性增高。大鼠连续３天口服普萘洛尔１０ｍｇ／ｋｇ。维拉帕米５,１０ｍｇ／ｋｇ及卡普托利５ｍｇ／ｋｇ可使肥厚心肌消退,并可降低线粒体钙泵活性。     

氟哌啶醇对电刺激诱发伏核多巴胺释放的影响

目的 研究氟哌啶醇（ＨＡＬ）对大鼠伏核多巴胺（ＤＡ）释放的影响。方法 用快速周期伏安法，检测了小剂量，大剂量给药组和对照组大鼠连续口服或腹腔注射ＨＡＬ前后伏核ＤＡ释放量的改变。结果 在连续２１ｄ口服０．５ｍｇ．ｋｇ＾－１．ｄ＾－１和１．０ｍｇ．ｋｇ＾－１．ｄ＾－１ＨＡＬ的大鼠，其伏核的ＤＡ放量与对照级经明显减少，差异有显著性；腹腔注射ＨＡＬ激发后，对照组ＤＡ释放量较注射前明显增加；两组药组ＤＮＡ     

SMU1对正常人体外PBMNC功能效应的影响

目的：研究ＳＭＵ１（自制抗ＣＤ３）对正常人外周血单个核细胞（ＰＢＭＮＣ）的体外功能效应,方法：（地）以ＳＭＵ１６种不同浓度、ＩＬ－２、ＭＣＤ３（丝裂性抗ＣＤ３）孵育ＰＢＭＮＣ,观察细胞密度和形态变化,ＭＴＴ法测定细胞增殖力;（２）分别用ＳＭＵ１０．５ｍｇ／Ｌｆ、５ｍｇ／Ｌ、ＩＬ－２２００ｋＵ／Ｌ培养ＰＢＭＮＣ３ｄ,ＥＬＩＳＡ法测定上清液ＩＬ－６、ＩＬ－８、ＩＬ－１２、ＩＦＮ－α及Ｇ－ＣＳＦ水平。结     

1—（2,6—二甲基苯氧基）—2—（3,4—二甲氧基苯乙氨基）丙烷盐酸？…

采用Ｆｕｒａ－２／ＡＭ显微荧光测钙技术,检测培养新生大鼠单个心肌细胞内游离钙的浓度,并观察１－（２,６－二甲基苯氧基）－２－（３,４－二甲氧基苯乙氨基）丙烷盐酸盐（ＤＤＰＨ）对不同刺激（去氧肾上腺素,高Ｋ＾＋,血管紧张素Ⅱ（ＡｎｇⅡ）〗与致心肌细胞钙超载的影响。结果表明,（１）在含钙、无钙标准台氏液,ＤＤＰＨ１０＾０４ｍｏｌ．Ｌ＾－１对去氧肾上腺素（Ｐｈｅ）１０＾－４ｍｐｌ．Ｌ＾－１所致钙增高有显     

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.