二丙酰基莲心碱抗实验性心律失常作用的研究

目的：研究二丙酰基莲心碱抗心律失常的作用。方法：采用乌头碱、哇巴因、氯化钙三种抗心律失常模型。结果：二丙酰基莲心碱（5mg/kg,iv)可明显提高乌头碱致头鼠、哇巴因致豚鼠发生室性早搏、室性心动过速、室颤及心脏停搏用量;延长氯化钙诱发大鼠心律失常的出现时间,减少早搏、室颤的发生率及死亡率。结论：二丙酰基莲心碱具有广泛的抗心律失常作用。     

大花红景天对室性心律失常防治的初步研究

目的：探讨大花红景天对实验性快速室性心律失常的防治作用。方法：采用氯化钙、乌头碱致大鼠，哇巴因致豚鼠及肾上腺素致大白兔心律失常模型。观察大花红景天对上述模型的影响。结果：口服红景天水提液后，显著减少氯化钙致大鼠室速、室颤的发生率及死亡率，并显著提高氯化钙致大鼠室性心律失常的阈剂量；显著提高乌头碱致大鼠室速、室颤的阈剂量；显著推迟肾上腺素致大白兔室性心律失常开始发作的时间、缩短发作持续时间及窦性心律恢复时间；未能显著减少哇巴因致豚鼠室速、室颤的发生率，未能显著提高哇巴因致豚鼠室性心律失常的阈剂量。结论：大花红景天水提液对多种实验性快速室性心律失常有良好的防治作用。     

黄芩茎叶总黄酮抗心律失常作用研究

目的：观察黄芩茎叶总黄酮（以下简称总黄酮）的抗心律失常作用。方法：采用乌头碱和冠状动脉结扎复灌诱发大鼠的室性心律失常、哇巴因诱发豚鼠的室性心律失常模型，记录总黄酮对乌头碱和哇巴因致室早（VP）、室颤（VF）、心脏停跳（HS）的剂量和冠状动脉结扎复灌至VP、VF及HS发生率。结果：总黄酮20，40mg/kg显著增加乌头碱致VP、VF及HS的阈剂量，减少冠脉结扎复灌诱发大鼠VP、VF及HS的发生率；可提高哇巴因诱发豚鼠VP、VF的阈剂量，但对致死剂量无明显影响。结论：总黄酮对实验性心律失常有显著的拮抗作用。     

维生素K抗心律失常作用的初步研究

iv.维生素 K_1 4mg/kg,对抗肾上腺素诱发的家兔心律失常;iv.维生素 K_120mg/kg,对抗氯化钡诱发的大鼠心律失常;对乌头碱引起的大鼠心律失常及哇巴因引起的豚鼠心律失常无明显对抗作用;对氯化钙引起的小鼠心律失常死亡无明显影响。     

苯海索抗实验性心律失常作用

在五种实验性心律失常动物模型上,观察苯海索(THP)的抗心律失常作用,结果发现THP1.5 mg/kg、3 mg/kg可对抗氯化钡、哇巴因和结扎大鼠冠状动脉引起的室性心律失常及增加兔电室颠阈值;THP 3 mg/kg可对抗乌头碱引起的室性心律失常。提示THP有抗实验性心律失常作用。     

苄基四氢巴马汀抗实验性心律失常的作用

苄基四氢马汀(B-THP)1mg/kg有对抗氯仿所致的小鼠室颤作用,5mg/kg可使哇巴因引起的豚鼠心律失常量和致死量增加。并有减轻氯仿-肾上腺素所致的心律失常作用,在麻醉大鼠,ivB-THP10mg/Kg可明显降低氯化钙所致的室颤发生率和死亡率,但对乌头碱引起的大鼠心律失常无拮抗作用。麻醉大鼠的心电图结果表明,B-THP静脉恒速灌注有减慢大鼠心率、延长Q-T间期的作用。iv3mg/kg B-THF在抗哇巴因引起的心律失常时对其血流动力学变化无明显影响。     

山麦冬水溶性提取物对动物实验性心律失常的影响

山麦冬水溶性提取物2g/kg iv.可明显缩短肾上腺素致家兔心律失常的持续时间。同样剂量的本品可使乌头碱致大鼠心律失常迅速转复窦性心律。山麦冬水溶性提取物2.5g/kg iv.对氯化钡致大鼠心律失常有明显的对抗作用。本品对哇巴因致豚鼠心律失常及氯化钙致小鼠室颤后的死亡率无明显影响。     

黄芩甙抗实验性心律失常的作用

目的：研究黄芩甙（Bai)对实验性心律失常的影响。方法：通过静脉注射乌头碱，哇巴因，氯化钡或结扎大鼠左冠脉前降支复制各种动物心律失常模型，在预先静脉注射Bai的基础上，观察药物对各种实验性心律失常的预防作用。结果：Bai可增加乌头碱或哇巴因诱发大鼠或豚鼠所致室性心律失常所需剂量，推迟氯化钡致心律失常的出现时间和持续时间，推迟缺血再灌注诱发大鼠心律失常的发生时间并缩短室速和室颤的持续时间，降低室颤的发生率。结论：Bai具有一定的抗实验性心律失常的作用。     

莲心碱抗实验性心律失常作用的研究

莲心碱5mg/kg,ⅳ可显著地对抗乌头碱诱发的大鼠及哇巴因诱发的豚鼠心律失常;也能预防肾上腺素所致的豚鼠室颤发生;还能对抗心肌缺血复灌所致的大鼠心律失常。莲心碱8mg/kg,ⅳ能使家兔心率减慢,P-R间期延长;莲心碱30μmol/L可延长离体豚鼠左房功能性不应期。结果提示,莲心碱抗实验性心律失常作用可能主要与其阻滞Ca++内流有关。     

莲心碱醚类衍生物抗心律失常作用

目的:研究两种莲心碱醚类衍生物莲心碱二甲醚、莲心碱二乙醚抗心律失常作用。方法:采用哇巴因、乌头碱、CaCl2和冠状动脉再灌注等多种抗心律失常模型。结果:两种莲心碱衍生物（5mg/kg,iv）均能显著提高哇巴因致豚鼠、乌头碱致大鼠发生室性早搏（VE）、室性心动过速（VT）、心室纤颤（VF）及心脏骤停（CA）的用量;延长CaCl2诱发大鼠心律失常的出现时间,缩短存活大鼠的窦律恢复时间,减少死亡率。还能对抗心肌缺血复灌所致的大鼠心律失常。结论:两种莲心碱衍生物均有广泛的抗心律失常作用。     

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.     

Development on Adjustable Calibration Marker for Shock Wave Focus

Shock wave lithotripsy （SWL） is a treatment of choice for upper urinary stones. However, this procedure is inappropriate for obese patients because the focus is often unable to reach the target owing to the limited focal distance in shock wave source. Although treating such patients in a blast path may increase the application length of shock wave source, it＇s difficult to find this path on the lithotripter monitor. For this reason, we invented an adjustable calibration marker in order to set an effective focus in the shock wave hath.     

Study on the TCM Pathogenesis of Angiopathic Complications of Type II Diabetes

Excess production of reactive oxygen species(ROS)of mitochondrion mediated by hyperglycemia is the common pathogenesis of angiopathic complications of diabetes.TCM holds that the damp from the dysfunction of spleen.kidney and liver is the causative factor of complications of diabetes.This is similar to the mechanism of Ros resulting in angiopathic complications of diabetes.When the angiopathic complications of type II diabetes mellitus(T2DM)are difierentiated as caused by turbid damp in TCM can be explained as ROS.Since the obstruction of pathogenic damp in channels and collaterals is said to be the main pathogenesis,the treating principle should be dissolving the damp to remove the obstruction.     

Leptin, Ghrelin and TNF-α before and after Hypo-caloric Traditional Chinese Diet and Auricular Acupuncture

INTRODUCTION Obesity is a complex emergent problem, which can be possibly solved not only by the diet but also by the life style and promotion of a constant physical exercise. 1, 2 No doubt careful attentions must be given to the nutritional condition of obese people, the dietary habits, the somatic build (i.e. distribution of fat mass) and the organic functions linked to formation of the fat mass. All the parameters should be constantly monitored before, during and after a diet treatment. 3, 4, 5     

Relationship between Dysglycemia and Carotid Atherosclerosis in Tibetan Population

People with dysglycemia are at high risk for atherosclerotic diseases. This study aims at investigating the atherosclerotic vascular damage in dysglycemia and its metabolic origin in Tibetan population.     

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.     

CLINICAL SIGNIFICANCE OF SERUM CYTOKINES IL-1β,sIL-2R,IL-6,TNF-α,AND IFN-v IN ACUTE CORONARY SYNDROME

Objectives To explore serum cytokines levels (including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v) and their significance in patients with acute coronary syndrome (ACS) and the subsequent follow-ups, with attempt to estimate the role of various serum inflammatory markers in the diagnosis and assessment of ACS.Methods The study population include 40 patients with acute myocardial infarction (AMI), 40 patients with unstable angina pectoris (UAP), and 40 controls. Among the 80 patients, 60 patients attended a follow up 4 months later. Serum inflammatory markers including IL-1 β, sIL-2R, IL-6, TNF-α, and IFN-v were measured by enzyme linked immunosorbent assay.Results Serum IL- 1 β, sIL-2R, IL-6, TNF-α were significantly higher in AMI group or UAP group compared to the control group and became significantly lower 4 months later in the follow-up patients. Serum levels of IFN-v shows no significant difference between AMI group or UAP group and controls, also showing no significant change when measured in follow up patients. There was no correlation between serum creatine kinase-MB isoenzyme levels and serum inflammatory markers either in UAP or AMI group. Furthermore, when divided into two subgroups using Wagner's QRS scoring system in the AMI group, there is no difference of each serum inflammatory marker between ≤ 6 scores group and ＞ 6 scores group.Conclusion Serum levels of certain inflammatory markers may have some diagnostic value for ACS, and can be a useful marker reflecting disease stability.