酸枣仁皂苷A对机械刺激剥夺果蝇睡眠节律变化的干预

目的 探讨酸枣仁皂苷A对机械刺激剥夺果蝇睡眠节律的干预作用.方法 实验选取2日龄果蝇作为研究对象,随机分为空白组、模型组和给药组3组,以睡眠时间和睡眠-觉醒节律为考察指标,利用果蝇活动监测仪连续监测48 h,考察酸枣仁皂苷A对果蝇的干预.结果 酸枣仁皂苷A能延长2、3日龄果蝇的夜晚睡眠时间(P＜0.01),缩短3日龄果蝇的白天睡眠时间(P＜0.01),改善在机械刺激剥夺下果蝇的睡眠-觉醒节律.结论 酸枣仁皂苷A对机械刺激剥夺果蝇睡眠节律变化具有干预作用.     

基于均匀设计法对酸枣仁镇静催眠有效组分的配伍研究

目的 优选酸枣仁中3种具有镇静催眠作用的主要有效组分（总皂苷、总黄酮、总生物碱）最佳配伍。方法 采用均匀设计法将70只小鼠随机分为7组,分别为对照组及给药A～F组,观察各组小鼠自主活动情况;采用阈上剂量戊巴比妥钠（45 mg/kg）协同睡眠试验,以小鼠的睡眠潜伏期和睡眠时间为评价指标,筛选酸枣仁镇静催眠有效组分的最佳配伍。对所得有效组分最佳配伍的药效进行比较和验证实验。结果 与对照组比较,给药A、C、E组小鼠自主活动减少（P＜0.05、0.01）,C、D组小鼠站立次数略有减少（P＜0.05）。在阈上剂量戊巴比妥钠协同试验中,给药组C～F睡眠潜伏期显著缩短（P＜0.01）,B～F组睡眠时间显著延长（P＜0.01）。经多元统计分析,酸枣仁镇静催眠有效组分的最佳配伍组合为总皂苷200 mg/kg、总黄酮0 mg/kg、总生物碱20 mg/kg。结论 应用均匀设计与药效学相结合确定中药有效组分配伍的方法是可行的。验证实验表明,酸枣仁有效组分的最佳配伍组合可以达到与原药材相同的疗效。     

复方远枣宁神片不同浓度乙醇提取物中总皂苷与镇静作用的相关性分析

目的:探讨复方远枣宁神片(FFYZNS片)不同浓度乙醇提取物药效的强弱、量效关系及药效与总皂苷含量的相关性。方法:采用紫外分光光度法测定总皂苷的含量;ZIL-2型小鼠自主活动程序仪测定小鼠自主活动抑制率(镇静试验)。结果:以60%乙醇提取物药效最强,且乙醇浓度及总皂苷含量均与镇静作用的强弱不呈正相关;小鼠自主活动抑制率随给药剂量的增加而增大,具有量效关系;结论:FFYZNS片不同浓度乙醇提取物镇静作用以60%乙醇提取物最好,给药剂量与药效存在量效关系;总皂苷含量与药效不呈正相关。     

酸枣仁提取物与酸枣仁皂苷A促进骨骼增高作用比较研究

目的:比较酸枣仁提取物和酸枣仁皂苷A促进骨骼增高的作用及其机制研究。方法:将酸枣仁皂苷A 0.016 mg·g~(-1)和含相同酸枣仁皂苷A含量的酸枣仁提取物0.320 mg·g~(-1)给予小白鼠灌胃,观察药物促进骨骼增高作用。同时给予大白鼠酸枣仁皂苷A 0.011 mg·g~(-1)和酸枣仁提取物0.220 mg·g~(-1)灌胃,检测脑组织5-羟色胺受体蛋白1A (5-hydroxytryptamine 1A receptor,5-HT1AR)含量和活性、生长激素分泌情况及对慢波睡眠时间的影响。结果:①酸枣仁提取物组、酸枣仁皂苷A组小白鼠体长明显优于对照组,差异有统计学意义(P0.01),但两组药物比较作用相当;②用药组较对照组总睡眠时间明显延长,清醒时间减少,但两组药物比较作用相当;③药物可以明显促进大白鼠体内生长激素分泌,明显高于对照组(P0.01),但两者比较作用相当;④药物可以显著促进脑组织5-HT1AR活性,酸枣仁提取物较酸枣仁皂苷A效果更好,但差异无统计学意义。结论:酸枣仁提取物可以替代酸枣仁皂苷A促进骨骼增长,降低治疗成本。     

麻黄汤对大鼠大脑额叶皮层氨基酸类神经递质水平的影响

目的研究麻黄汤(HED)对大鼠额叶皮层中天冬氨酸(Asp)、谷氨酸(Glu)、甘氨酸(Gly)和γ-氨基丁酸(GABA)等氨基酸类神经递质水平的影响,及其量效和时效关系。方法2,4-二硝基氟苯为衍生化试剂,HPLC-UV法测定大鼠额叶皮层中氨基酸水平。结果给药5d,HED15、18g/kg剂量组Asp、Glu和GABA水平与空白对照组相比有显著性升高,Gly无显著性改变。4种氨基酸均在ig5d时,与空白对照组相比有显著性升高。结论HED显著升高了大鼠额叶皮层中氨基酸水平,并呈现一定的量效、时效关系。在试验剂量范围内15g/kg是较敏感的剂量;给药5d是最佳时间。     

疏可眠胶囊镇静作用的实验研究

且的:观察疏可眠胶囊对小鼠的镇静作用。方法:采用旷野活动法观察疏可眠胶囊不同给药剂量、给药时间对小鼠自主活动的量效、时效作用;对士的宁诱发惊厥小鼠的作用。结果:连续给药7d,疏可眠低中剂量(1g·k~(-1)、2g·kg~(-1))均能显著减少小鼠的自主活动;疏可眠高剂量(3g·kg~(-1))给药后1h～2h自主活动显著减少;给药后2h,呈现量效关系,随着剂量增加小鼠自主活动减少。各剂量组均可延长士的宁诱发小鼠惊厥出现的时间及死亡时间。结论:疏可眠胶囊具有减少小鼠自主活动和抗惊厥作用。     

枸杞子对黒腹果蝇寿命影响研究

目的：研究枸杞子对果蝇寿命的影响。方法：应用野生型黑腹果蝇,在培养基中加入不同量的枸杞,观察并记录果蝇的存活时间。结果：浓度为1．7～6．7mg／mL时果蝇寿命延长11～23天,浓度在13．3mg／mL时果蝇寿命则减少21～22天。结论：枸杞子在一定浓度下会延长果蝇的寿命,但浓度过高反而对果蝇有不利影响。     

克瘤丸组成药物提取物对人肺癌细胞的抑制作用

目的 研究克瘤丸组成药物提取物对人肺癌细胞A549的抑制作用,优化精简克瘤丸的处方组成。方法 采用MTT法考察黄芪总皂苷、斑蝥超临界萃取物、虫类药乙醇提取物、山豆根总生物碱和黄芪、山豆根水提物等克瘤丸5个提取物对A549细胞增殖的抑制作用;选用五因素二水平正交实验设计,分析克瘤丸5个提取物对A549细胞增殖的不同效应,判断其是否存在交互作用。结果 细胞毒实验结果表明克瘤丸中的斑蝥萃取物、虫类药醇提物、黄芪总皂苷和山豆根总生物碱等4种提取物对A549的IC50值分别是0.330、1.041、1.961、2.015 mg/mL。其中斑蝥萃取物和虫类药醇提物的抑制作用48 h达到峰值,存在量效和时效关系。正交实验结果显示,虫类药醇提物在抑制A549细胞增殖中起主要作用,斑蝥萃取物和黄芪总皂苷次之。方差分析表明黄芪总皂苷和虫类药醇提物、斑蝥萃取物和虫类药醇提物存在交互作用。结论 虫类药醇提物、斑蝥萃取物和黄芪总皂苷是克瘤丸发挥作用的必要成分,可精简为3者的配伍方。      

枸杞子对黑腹果蝇寿命影响研究

目的：研究枸杞子对果蝇寿命的影响。方法：应用野生型黑腹果蝇,在培养基中加入不同量的枸杞,观察并记录果蝇的存活时间。结果：浓度为1．7～6．7mg／mL时果蝇寿命延长11～23天,浓度在13．3mg／mL时果蝇寿命则减少21～22天。结论：枸杞子在一定浓度下会延长果蝇的寿命,但浓度过高反而对果蝇有不利影响。     

酸枣仁汤抑制神经炎症减轻睡眠剥夺大鼠海马神经损伤的研究

目的 从抑制神经炎症探讨酸枣仁汤减轻睡眠剥夺大鼠海马神经损伤的机制.方法 将大鼠随机分为正常对照组、模型对照组、艾司唑仑组、酸枣仁汤低剂量组、酸枣仁汤高剂量组.除正常对照组外,其他组构建睡眠剥夺动物模型,造模与给药同时进行,连续给药30d.应用实时荧光定量聚合酶链式反应(Real-time PCR)法与ELISA检测大...     

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.     

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…     

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.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

Luo Lingjie's Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.