椿叶的化学成分研究

目的：寻找楝科中的杀虫及药用活性成分。方法：分离鉴定香椿Toona sinensis叶的乙醇提取物中的化合物。结果：从香椿叶的乙醇提取物中分离得到6个化合物,经过波谱分析分别被鉴定为6,7,8,2′－四甲氧基－5,6′-二羟基黄酮（Ⅰ）,5,7－二羟基－8－甲氧基黄酮（Ⅱ）,山柰酚（Ⅲ）,3－羟基－5,6－环氧7－megastigmen-9酮（Ⅳ）,没食子酸乙酯（Ⅴ）,东莨菪素（Ⅵ）,结论：化合物Ⅳ为首次从该植物中分离得到。     

北刘寄奴中黄酮类化学成分的研究

目的：对北刘寄奴Siphonostegia chinensis的黄酮类活性成分进行研究。方法：采用95％乙醇提取及各种柱色谱法分离，光谱技术鉴定结构，结果：分离得到6个黄酮类化合物，分别鉴定为：5，3′－二羟基－6，7，4′－三甲氧基黄酮（Ⅰ）、5，7－二羟基－3′，4′－二甲氧基黄酮（Ⅱ）、芹菜素（Ⅲ）、木犀草素（Ⅳ）、芹菜苷（Ⅴ）、木犀草苷（Ⅵ）、结论：化合物Ⅰ，Ⅱ，Ⅴ和Ⅵ均为首次从本植物中分离得到。     

多舌飞蓬黄酮成分的研究

从多舌飞蓬Erigeronmultiradiatus（Wall．）Benth．全草中分得12个化合物，其中7个为黄酮，经理化性质和光谱分析鉴定为：芹菜素（Ⅰ）、槲皮素（Ⅱ）、木犀草素（Ⅲ）、芹菜素－7－O－β－D－葡萄糖醛酸苷即灯盏甲素（Ⅳ）、槲皮素－3－O－β－D－葡萄糖苷即异槲皮苷（Ⅴ）、黄芩素－7－O－β－D－葡萄糖醛酸苷即灯盏乙素（Ⅵ）和黄芩素－7－O－β－D－葡萄糖苷（Ⅶ）。以上化合物均系首次自该植物中分得，其中Ⅴ为首次从该属植物中分得。     

滇白珠化学成分的研究(Ⅰ)

从滇白珠Gaultheriayunnanensis（Franch．）Rehd．根的氯仿提取物中分离得到11个化合物，其中7个化合物经理化性质和波谱分析分别鉴定为东莨菪素（Ⅰ），棕榈酸（Ⅱ），胡萝卜苷（Ⅲ），（＋）－lyoniresinol（Ⅳ），（－）－5′-甲氧基异落叶松树脂醇（Ⅴ），3，4，5-三甲氧基苯甲酸（Ⅵ）和乙酰丁香酸（Ⅶ）。化合物Ⅴ为一新天然产物，其它6个化合物为该属植物中首次报道。     

管花肉苁蓉的苯乙醇苷类成分

采用各种色谱技术主要为ＨＰＬＣ从国产管花肉苁蓉Ｃｉｓｔａｎｃｈｅ ｔｕｂｕｌｏｓａ （Ｓｃｈｅｎｋ）Ｗｉｇｈｔ中分离得到７个苯乙醇苷类化合物,根据理化性质和波谱 数据鉴定它们的结构为２′－乙酰基类叶升麻苷（Ⅰ）、类叶升麻苷（Ⅱ）、ｃｒｅ－ｎａｔｏｓｉｄｅ（Ⅲ）、丁香苷Ａ３／′－α－Ｌ－吡喃鼠李糖苷（Ⅳ）、异类叶升麻苷（Ⅴ）、去咖啡酰基类叶升麻苷（Ⅵ）和红景天苷（Ⅶ）。化合物Ⅲ为首次从本属植物中分离得到,其它化合物为首次从本植物中分离得到。     

假鹰爪化学成分研究(Ⅱ)

目的：寻找番荔枝科假鹰爪属植物假鹰爪Ｄｅｓｍｏｓ ｃｈｉｎｅｎｓｉｓ抗肿瘤活性成分。方法：采用硅胶柱色谱分离化学成分。根据理化性质及波谱分析等方法鉴定结构。结果：从氯仿萃取物中分离鉴定了７个化合物,分别是ｕｎｏｎ－ａｌ（Ⅰ）,黄芩素－７－甲醚（Ⅱ）,去甲氧杜鹃花素（Ⅲ）,去甲氧杜鹃花素－７－甲醚（Ⅳ）,苯甲酸（Ⅴ）,β－谷甾醇（Ⅵ）和豆甾醇（Ⅶ）。结论：该种植中鉴定的黄酮类化合物均为β－环未取代,     

白花前胡化学成分的研究(V)

从中药白花前胡Ｐｅｕｃｅｄａｎｕｍ ｐｒａｅｒｕｐｔｏｒｕｍ根中分得４个化合物,经理化常数和波谱数据测定,分别鉴定为ｐｅｕｃｅｄａｎｏｃｏｕｍａｒｉｎⅠ（Ｉ）,ａｎｇｅｌｉｃｉｎ（Ⅱ）,３′（Ｒ）,４′（Ｒ）－３′－千里光酰基－４′－当归酰基－３′,４′－二氢邪蒿素（Ⅲ）,ａｒｎｏｃｏｕｍａｒｉｎ（Ⅳ）。Ⅱ为首次从该植物中分得,Ⅲ和Ⅳ为首次从首胡属植物中分得。     

扁豆花化学成分研究

自扁豆ＤｏｌｉｃｈｏｓｌａｂｌａｂＬ．花的正丁醇部分分得５个黄酮类化合物和１个多元醇，通过化学反应和光谱分析，分别鉴定为木犀草素（ｌｕｔｅｏｌｉｎ，Ⅰ），大波斯菊甙（ｃｏｓｍｏｓｉｎ，Ⅱ），木犀草素－４′－０－葡萄糖甙（ｌｕｔｅｏｌｉｎ－４′－０－β－Ｄ－ｇｌｕｃｏｐｙｒａｎｏｓｉｄｅ，Ⅲ），木犀草素－７－０－葡萄糖甙（ｌｕｔｅｏｌｉｎ－７－０－β－Ｄ－ｇｌｕｃｏｐｙｒａｎｏｓｉｄｅ，Ⅳ），野漆树甙（ｒｈｏｉｆｏｌｉｎ，Ⅴ）和甘露醇（Ｄ－ｍａｎｎｉｔｏｌ，Ⅵ）。这些化合物系首次从扁豆属植物中分到。     

地锦草化学成分的研究

目的研究地锦草的化学成分,方法：采用硅胶柱层析分离和Sephadex LH-20纯化,从地锦草中分得９个化合物,经理化生质和波谱分析鉴定了它们的结果。结果它们分别为β－谷甾醇（Ⅰ）,没食子酸（Ⅱ）,鞣花酸（Ⅲ）,短叶苏木酚（Ⅳ）,槲皮素（Ⅴ）,山奈酚（Ⅵ）,芹菜素－７－Ｏ葡萄糖苷(Ⅶ）,木犀草素－７－Ｏ－葡萄糖苷（Ⅷ）,槲皮素－３－Ｏ－阿拉伯糖苷（Ⅸ）,结论：化合物Ⅲ,Ⅳ,Ⅶ,Ⅷ和Ⅸ为首次从该植物中分得。     

马山前胡化学万分的研究（Ⅱ）

从广西特有的前胡属植物冯山前胡Ｐｅｕｃｅｄａｎｕｍ ｍａｓｈａｎｅｎｓｅ根中分得４个化合物，经理化常烽和波谱分析，鉴定为３′（Ｒ）－（＋）－亥茅酚（Ⅰ），３′（Ｓ）－（－）－亥（Ⅱ），褐煤酸（Ⅲ）和甘露醇（Ⅳ）。化合物Ⅰ为首次从自然界分得，其余均为首次从该植物中分得。     

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.     

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     

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.     

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…     

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.     

Possible Spread of adenovirus type 3 from poultry to humans ：indirect evidence from an outbreak in China

Objective:To explore the epidemiology and etiology for an outbreak of acute respiratory tract infection that occurred in one county of Jiangsu Province, China 2004. Methods: Only cases meeting the case definition were included in the study. We reviewed the medical records of the cases who were admitted to the local hospitals, interviewed cases by a standard questionnaire, and then described the epidemiotogic features and analyzed risk factors by means of a case-control study. We collected pharyngeal swab specimens and sent them to different laboratories for isolation and culture. The laboratory used different detection methods such as DIP, PCR, electron microscope examination and microneutralization assay, to identify and then type the positive specimens. Results:A total of 871 cases were reported during the period from April 18 to July 4,2004. The distribution of onset times presented two peaks, one in late May and another in middle June. The epidemic occurred mainly in the elementary and junior high schools in ten townships of one county, and the mean age of the cases was 12 years (range 7 months to 18 years). The course of the disease was acute, and was characterized by fever accompanied with sore throat and tonsillitis. The WBC count of cases was normal or elevated. The mean duration of illness was 5 days (range 2 to 12 days). No fatalities from illness were reported. A case-control study indicated that the possible risk factors were close contact with a case and/or poultry before onset and sharing of towels among members of the family. The typical CPE was observed through inoculating pharyngeal swab specimens into the HEP-2 cell cultures in different laboratories. An infection of adenovirus type 3 was verified by detecting positive specimens in different methods. Conclusion:This investigation demonstrated that the acute respiratory infection in cases was caused by adenovirus type 3. Cases occurred in over 70 schools in ten townships in 2004, and the route of transmission was possibly close contact with cases or droplet transmission.