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1.
目的:观察双氯芬酸胆碱滴眼液对兔眼球穿孔伤后房水蛋白升高的抑制作用。方法:采用兔眼前房穿刺和花生四烯酸(AA)刺激眼前部模型,用Lowry法测定兔眼球穿孔后房水蛋白含量的变化。结果:Lowry法测定兔眼球穿孔后房水蛋白含量的回收率为91.8%-104.1%,平行实验的相对标准偏差为0.46%,双氯芬酸胆碱滴眼液对兔眼球穿孔伤后房水蛋白升高的抑制率为90.3%,对AA刺激引起的房水蛋白升高的抑制率为76.1%。结论:1.0g/L双氯芬酸胆碱滴眼液对前房穿刺及AA刺激引起的房水蛋白升高有显著抑制作用,并且明显优于醋酸可的松滴眼液。  相似文献   

2.
双氯芬酸胆碱滴眼液对实验性眼炎的抗炎作用   总被引:7,自引:0,他引:7  
目的:探讨双氯芬酸胆碱滴眼液抗炎作用。方法:采用兔眼前房穿刺和花生四烯酸(简称AA)刺激眼前部炎症模型,对1.0g/L双氯芬酸胆碱滴眼液局部抗炎作用进行了研究。结果:1.0g/L双氯芬酸胆碱滴眼液对前房穿刺所致的房水蛋白增加的抑制率为90.3%,对AA点眼所致的房水蛋白增加的抑制率为76.1%,给药眼与对照眼比较,差异有显著性(P<0.01)。对AA点所致的眼压升高有显著的抑制作用(P<0.01)。结论:双氯芬酸胆碱滴眼液可抑制眼局部前列腺素的合成与释放, 从而发挥抗炎作用,发展前景较好。  相似文献   

3.
目的:探讨雷公藤内酯醇(TP)对试验性色素膜视网膜炎(EAU)Th1反应相关因子的抑制作用。方法:用ELISA检测IL-12、IFN-γ水平;采用原位杂交染色法,观测TP对EAU的T淋巴细胞IL-12mRNA的表达的影响;采用电泳迁移率改变试验对EAU T淋巴细胞NF-AT活性检测。结果:①TP能有效的降低S-抗原诱导产生的EAU(P<0.05);②TP能降低EAU T淋巴细胞IL-12、IFN-γ分泌水平;③P能抑制EAT淋巴细胞IL-12 mRNA的表达;④TP抑制EAU T淋巴细胞NF-AT活性。结论:TP对EAU的免疫抑制作用可能是通过抑制与Th1反应相关的调节因子使Th1反应减弱,而使EAU的发病率明显降低。  相似文献   

4.
目的 探讨重组小鼠IL-15/Fc融合蛋白治疗实验性自身免疫性葡萄膜炎(EAU)的效应和机制.方法 C57小鼠输注IRBPI-20抗原特异性T细胞,构建EAU模型,通过静脉注射重组IL-15/Fc融合蛋白,眼底镜和HE染色评价融合蛋白治疗EAU的疗效.用auto-MACS分离IRBPI-20抗原免疫小鼠T细胞,通过CFSE染色,3HTdR渗入抑制法,流式细胞仪,ELISA法检测IL-15/Fc融合蛋白对IRBPl-20特异性T细胞抗原特异性活化、增殖、分化和分泌炎症细胞因子的作用.结果 IL-15/Fc融合蛋白能有效抑制IRBPI-20特异性CD8 T细胞增殖、扩增、向CD44highCD62Llow效应细胞亚群的分化和分泌炎症性细胞因子.体内应用能有效抑制EAU的临床症状.结论 该重组IL-15/Fc融合蛋白能抑制IRBP1-20特异性CD8 T细胞活化、增殖、分化和分泌炎症性细胞因子,从而抑制EAU的炎症反应.  相似文献   

5.
目的 测定雷公藤总生物碱滴眼液在大鼠房水中的浓度时间曲线.方法 SD大鼠48只随机分成实验组1(0.05%滴眼液组)、实验组2(0.025%滴眼液组)和对照组(口服组),每组16只大鼠32只眼,实验组1大鼠结膜囊内滴入0.05%的自制雷公藤总生物碱滴眼液,实验组2大鼠结膜囊内滴入0.025%的自制雷公藤总生物碱滴眼液,对照组饲服昆明山海棠粉(7.5g/kg),于给药后的0.5、1、2、4、8、12、24、48h各组分别处死2只大鼠,并抽取双眼房水20μl,应用高效液相色谱法测定房水中雷公藤次碱的药物浓度.结果 实验组1与实验组2各时间点的药物浓度差异有统计学意义(P =0.041≤0.05),与对照组比较差异有统计学意义(P=0.04≤0.057).实验组2和对照组比较差异无统计学意义(P =0.166≥0.05).实验组1的药物峰值面积最大,其在0.2 μg/ml的药物浓度可以维持约4h.其次是实验组2,在0.2μg/ml的药物浓度可以维持约2h,但对应峰值面积明显小于实验组1.对照组的药物浓度在0.2 μg/ml以下,峰值面积小于实验组1和实验组2.结论 0.05%雷公藤总生物碱滴眼液与口服药物相比,可在房水中维持较高药物浓度,适合应用于临床.  相似文献   

6.
目的 :探讨双氯芬酸胆碱滴眼液抗炎作用。方法 :采用兔眼前房穿刺和花生四烯酸 (简称AA)刺激眼前部炎症模型 ,对 1 0g/L双氯芬酸胆碱滴眼液局部抗炎作用进行了研究。结果 :1 0g/L双氯芬酸胆碱滴眼液对前房穿刺所致的房水蛋白增加的抑制率为 90 3% ,对AA点眼所致的房水蛋白增加的抑制率为 76 1% ,给药眼与对照眼比较 ,差异有显著性 (P <0 0 1)。对AA点眼所致的眼压升高有显著的抑制作用 (P <0 0 1)。结论 :双氯芬酸胆碱滴眼液可抑制眼局部前列腺素的合成与释放 ,从而发挥抗炎作用 ,发展前景较好。  相似文献   

7.
MIM(missingin metasastasis)又称MTSS1(metastasis suppresor 1),是一个新发现的肿瘤抑制基因,其中含有独立的肌动蛋白结合结构域。MIM—B是MIM的同源异构体,都定位于8q24.1,其编码蛋白都具有N末端的IRSP53/MIM同源结构域(IRSP53/MIM homology domain,IMD)和C末端的WH2结构,而WH2和IMD均可与细胞骨架蛋白结合,引起细胞骨架的改变从而调节细胞的生长活动。M1M或MIM—B在某些转移的肿瘤组织中不表达,而在多种正常组织中广泛表达,提示其可能具有肿瘤抑制作用。本文根据最新研究成果综述MIM和MIM—B两种同源异构体基因的结构、功能及抑制肿瘤转移的可能机制。  相似文献   

8.
为评价佳贝滴眼液在白内障术中维持瞳孔散大及术后抗炎作用。本文对 5 6例老年白内障患者随机分佳贝组和地米对照组 ,观察其术中瞳孔大小的改变及对卡米可林缩瞳作用的影响 ,以及佳贝滴眼液对术后角膜后KP和房水混浊度及对术眼眼压的影响。结果 :佳贝滴眼液能有效抑制术中瞳孔缩小 (P <0 .0 0 1) ,且不影响卡米可林的缩瞳作用 ,并有效降低术眼术后前房炎症反应 ,且不引起早期眼压的改变 (P >0 .0 5 )。结论 :佳贝能安全、有效地维持白内障术中瞳孔大小、降低术后炎症反应  相似文献   

9.
辛红霞  刘伟 《医学争鸣》2009,(20):2163-2167
目的:测定加替沙星眼凝胶兔眼单次和多次给药后不同时间的角膜及房水中的药物浓度,并与加替沙星滴眼液兔比较眼部相对生物利用度.方法:日本大耳白兔随机分为2组,每组40只动物,一组为实验组,单次给予加替沙星眼凝胶(GTX—Gel),另外一组为对照组,分别给予加替沙星滴眼液(GTX—ED).分别于给药后不同时间抽取房水,处死动物后剖取角膜组织,每个时间点均为4只动物8眼.多次给药:日本人耳白兔随机分为2组,一组每眼给予GTX—Gel 50mg,作为实验组,另一组每眼给予滴眼液50μL,作为对照组,每4h1次,共给药3次,分别于最后一次给药后2,4,12h后抽取房水,处理方法与每个时间点动物数和单次给药相同.药物测定采用反相高效液相色谱法.数据处理采用prizm和DAS2.1.1药动学软件.结果:GTX—Gel组在5~360min各时间点的角膜药物浓度与GTX—ED组比较有统计学差异(P〈0.05),GTX—Gel组角膜中的AUC0-360是GTX—ED组的4.8倍.GTX—Gel组在5~360min各时间点房水药物浓度与GTX—ED比较有统计学差异(P〈0.05).GTX—Gel组房水中的AUC0-360是GTX—ED组的5.5倍.GTX—Gel组多次给药后在2,4,12h时角膜中的药物浓度分别是GTX—ED组对应时间点的5.3,2.2和3.0倍,房水中的药物浓度分别是GTX—ED组对应时间点的7.1,2.7,1.5倍.结论:加替沙星眼凝胶单次给药后同滴眼液比较可以显著提高药物在角膜和房水中的药物浓度,增加药物的眼部生物利用度.眼凝胶组多次给药后不同时间点的角膜和房水中的浓度均高于滴眼液组.  相似文献   

10.
目的:检测角膜排斥反应时房水中的α1-抗胰蛋白酶及其浓度,并比较发生可逆性和不可逆性排斥反应的预后情况。方法:获取17例发生急性角膜内皮移植物排斥反应患者的房水样本。采用免疫印迹法确定房水中的α1-抗胰蛋白酶表达,夹心ELISA法测定浓度。采用Bradford法检测房水中总蛋白浓度。诊断为角膜排斥反应后1月评价角膜排斥反应发作的预后,即可逆或不可逆性排斥反应。结果:房水中检测到α1-抗胰蛋白酶。可逆性排斥反应患者α1-抗胰蛋白酶浓度显著高于不可逆性的患者(P=0.044)。组间总蛋白浓度无显著性差异(P=0.745),α1-抗胰蛋白酶和总蛋…  相似文献   

11.
Effects of WH-1 and WH-2 eye drops on experimental allergic uveitis(FAU)in rabbits induced by bovine serum albumin were clinically and pathologically observed in comparisonwith local drops of dexamethasone used as positive control.The results showed that WH-2 obvi-ously inhibited the inflammatory reactions while WH-1 did not.Protein concenwation in the aqueoushumor of WH-2-treated group of rabbits was 9.24±2.34mg/ml,which was notably lower(P<0.01)than both that of the untreated(14.33±3.14 mg/ml)and of the WH-1-treated(12.91±3.95mg/ml),but signifificantly higher than that of the dexame dexamethasone-treated goup(4.43±1.43mg/ml,P<0.01).The alleviation of the intraocular inflammatory reaction by therapy of WH-2eye drops was confimed pathologically.This study indicates that WH-2 has a positiveantiphlogistic effect on EAU in rabbits.  相似文献   

12.
本文介绍了粤华牌WH-801数码超声雾化机的工作原理、故障检修及日常使用的注意事项.  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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.  相似文献   

17.
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.  相似文献   

18.
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.  相似文献   

19.
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.  相似文献   

20.
Journal of Nanjing Medical University (English Edition) JNMU, sponsored by Nanjing Medical University, was established in 1987. It is a bimonthly comprehensive English medical journal published locally and abroad.Since 2007, Journal of Nanjing Medical University (English Edition )was granted Elsevier the full publishing and distribution rights worldwide for the Electronic Edition, excluding the People's Republic of China.  相似文献   

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