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1.
高压液相色谱法纯化抗人大肠部单克隆抗体   总被引:2,自引:0,他引:2  
采用Bio-Rad公司的MAPS100单克隆抗体纯化系统,利用羟基磷灰石层新 柱对鼠柱对复腹水中抗人大肠癌单克隆抗体进行分离纯化。结果:还原性SDS-PAGE显示所获抗体为单一组分,ELISA证实抗体活性满意,所获抗体收率为23%-52%,重复进样收率稳定(38.63±2.26)%,n=3。  相似文献   

2.
用单克隆抗体及生物素与亲和素,建立了McAb-BA-ELISA(单克隆抗体-生物素亲和素-酶联免疫吸附试验)和McAb-ELISA(单克隆抗体酶联免吸附试验),用于检测Ⅰ型青霉素过敏患者中,BPO-Spec-IgE阳性率为45%,BPO-Spec-IgE阴性者中,用McAb-ELISA检测BPE-Spec-IgE与6-APA-Spec IgE,阳性率分别为12.5%及35.0%,总阳性率为92.…  相似文献   

3.
SDS—PAGE法分离纯化牛角膜上皮特异性膜结合蛋白质55.3kD   总被引:2,自引:0,他引:2  
用SDS-PAGE法离纯化了牛角膜上皮特异性膜结合蛋白质55.3kD,结果显示,SDS-PAGE可用于从少量样品中提高纯度的蛋白质,且有效好的收率。  相似文献   

4.
用SDS-PAGE法离纯化了牛角膜上皮特异性膜结合蛋白质55.3kD,结果显示:SDSPAGE可用于从少量样品中提取高纯度的蛋白质,且有较好的收率。  相似文献   

5.
目的:分离纯化人血清胆固醇酯转运蛋白(CETP),为制备CETP单克隆抗体和CETP浓度测定提供物质基础。方法:制备无脂血清,用Butyl-Sepharose4FF、CM-SepharoseFF和SephacrylS-200三步柱层析分离、纯化CETP。结果:纯化的CETP经SDS-PAGE与CETP特异性单克隆抗体免疫反应和活性测定等鉴定证实为纯化CETP。结论:经三步柱层析获得了纯化CETP,得率约25%,活性30nmol/(μg·h)。  相似文献   

6.
将PCR扩增的HTV76-118RNA小片段的cDNA克隆插入到载体pDS56/RBSⅡ-(O)-6His中,通过IPTG诱导表达以及镍螯合层析纯化重组NP,经过SDS-PAGE、免疫转印和ELISA方法分析其蛋白特性,证实该重组NP与毒粒NP相同,均为49.6ku,能与肾综合征出血热(HFRS)患者血清产生特异性反应。以此重组NP作为抗原制备抗NP单克隆抗体,获得两株持续稳定分泌单克隆抗体的杂交瘤细胞株。用抗NPMcAb建立检测IgM抗体的ELISA捕获法。证实纯化重组NP作为抗原,避免了组织培养病毒的感染性和非特异性以及难以标准化的缺点。所建立的ELISA捕获法检测HFRS患者血清中IgM抗体的方法特异性强、敏感性高,可作为HFRS的早期诊断试剂  相似文献   

7.
本文以纯化的人肝棘球蚴囊液致敏PVC薄膜板,液体的HRP-SPA为第二抗体,敏感无毒的TMB做底物,建立了PVC薄膜SPA-ELISA法,检测72例手术证实的包虫病患者血清抗体,阳性符合率为91.17%(66/72),45例临床确诊的非包虫病人2例呈阳性,60例健康人均阴性,假阳性率为1.83%(2/105),结果表明该法即保持了经典ELISA敏感性高,特异性强的优点,而且操作简单,快速,无毒,省  相似文献   

8.
阳离子交换色谱一步法制备级纯化单克隆抗体   总被引:2,自引:1,他引:1  
刘智广  陈志南 《医学争鸣》1994,15(4):293-296
应用快速蛋白液相色谱系统(FPLC)建立一种一步法制备级纯化单隆抗体方法。方法:将McAb腹水用pH6.0,0.01mol/L PB透析或稀释8倍后直接上SP-40HR阳离子交换色谱柱,用PB-NaCl二元线性离子梯度洗脱,即得到纯化的McAb。结果:每次上样量70~80ml腹水,可获得纯化McAb500~580mg,得率7~7.5mg/ml腹水,回收率为70%~75%,SDS-PAGE检测纯度为  相似文献   

9.
目的:利用基因重组技术、大肠杆菌表达人环孢菌素A结合蛋白(rhCyPA),建立测定抗CyPA自身抗体的酶联免疫吸附试验(ELISA),探讨抗CyPA抗体与临床疾病的关系。方法:重组菌可溶性蛋白经饱和硫酸铵盐析和DEAE-SepharoseCL-6B柱层析,获取rhCyPA蛋白,用该纯化物作为抗原,方阵滴定,建立ELISA技术,对各类自身免疫病进行评估测定。结果:rhCyPA经十二烷基硫酸钠-聚丙烯酰胺凝胶电泳(SDS-PAGE)分析,分子量为18000。在系统性红斑狼疮(SLE)患者中,发现有40.3%的患者检出有抗CyPA自身抗体(58/144),三类免疫球蛋白(Ig)中,又以IgG类抗体检出率最为突出,为28%(40/144);而其它自身免疫病患者抗CyPA抗体总体检出率为0%~18.1%。结论:建立的检测抗CyPA抗体的ELISA法,敏感、特异、可半定量测定。抗CyPA抗体的存在似与SLE的发病有关。  相似文献   

10.
人尿Tamm-Horsfall糖蛋白(THP)经盐析、SephadexG-100层析获得SDS-PAGE均一的蛋白质纯品。后者与福氏完全佐剂充分混合免疫家兔得到抗THP抗体。将纯化了的该抗体与生物素连结,建立了生物素-抗生素系统的ELISA(ABC-ELISA)测定法。该法最低检测限为2ng,回收率97%,变异系数4.7的。测定51名正常人血清中THP水平为226.94±145.90ng/ml。并测定了50名各类肾脏病人血中的THP值。  相似文献   

11.
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   

12.
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   

13.
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…  相似文献   

14.
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.  相似文献   

15.
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.  相似文献   

16.
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  相似文献   

17.
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.  相似文献   

18.
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.  相似文献   

19.
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.  相似文献   

20.
Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.  相似文献   

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