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1.
抗内毒素鸡蛋黄抗体F(ab'''')2制备   总被引:1,自引:0,他引:1  
目的研究抗内毒素鸡蛋黄免疫球蛋白(IgY)用胃蛋白酶切后提取的F(ab’)2片段,探索防治内毒素血症的新途径。方法用内毒素(LPS)作抗原免疫25周龄leghorn鸡,改良水溶法提取抗内毒素IgY,胃蛋白酶切后提取IgY—F(ab’)2段,光密度法测抗内毒素IgY—F(ab’)2浓度和含量、ELISA检测抗内毒素IgY—F(ab’)2效价,SDS-聚丙烯酰胺凝胶电泳检测其分子量及纯度。结果抗内毒素IgY—F(ab’)2含量为1.04mg/ml蛋黄液,效价为1:25600,纯度为90%,相对分子质量为24000。结论抗内毒素IgY—F(ab’)2产量大、效价高、特异性强。  相似文献   

2.
抗内毒素IgY的制备及稳定性研究   总被引:1,自引:1,他引:0  
蔡志民  赵永亮  张雅萍 《重庆医学》2003,32(8):1015-1015,1112
目的 用大肠杆菌J5制备特异抗内毒素IgY,探索防治内毒素血症的新途径。方法 用大肠杆菌J5作抗原免疫25周龄Roman鸡,水溶法提取抗体,进行SDS-PAGE及Western blot分析,通过酶联染色反应检测其免疫学活性,ELISA检测其时酸、碱和酶的稳定性。结果 抗体含量为11.4mg/ml蛋黄液,纯度为92.3%,分子量为180KD,初步鉴定其时内毒素具有特异性结合作用,并且对酸、碱、酶有很好的稳定性。结论 用大肠杆菌J5株免疫鸡可刺备出特异性抗内毒素的IgY,且具有良好的稳定性,作为口服制剂为预防和治疗内毒素血症奠定了基础。  相似文献   

3.
目的研究抗内毒素鸡蛋黄免疫球蛋白(IgY)用胃蛋白酶切后提取的F(ab′)2片段,探索防治内毒素血症的新途径。方法用内毒素(LPS)作抗原免疫25周龄leghorn鸡,改良水溶法提取抗内毒素IgY,胃蛋白酶切后提取IgY F(ab′)2段,光密度法测抗内毒素IgY F(ab′)2浓度和含量、ELISA检测抗内毒素IgY F(ab′)2效价,SDS-聚丙烯酰胺凝胶电泳检测其分子量及纯度。结果抗内毒素IgY F(ab′)2含量为1.04mg/ml蛋黄液,效价为1∶25600,纯度为90%,相对分子质量为24000。结论抗内毒素IgY F(ab′)2产量大、效价高、特异性强。  相似文献   

4.
抗内毒素IgY-F(ab)2鉴定   总被引:2,自引:1,他引:1  
史政荣  张雅萍 《中国现代医学杂志》2005,15(13):1952-1954,1957
目的 研究抗内毒素IgY用胃蛋白酶切后提取的F(ab)2片段,对其理化特性进行研究。方法 将抗内毒素igY用胃蛋白酶切后提取igY—F(ab)2段,光密度法测抗内毒素IgY—F(ab)2浓度和含量、ELISA检测抗内毒素IgY—F(ab)2效价,SDS-聚内烯酰胺凝胶电泳检测其分子量及纯度,免疫印迹法(Wescem—blotting)测定其特异性。结果 抗内毒素IgY—F(ab)2含量为1.04mg/mL蛋黄液,效价为1:25600,纯度为90%。分子量为24KD,与鸡血清中的IgG有相同的抗原性。结论抗内毒素IgY—F(ab)2产量大、效价高、特异性强。  相似文献   

5.
抗白色念珠菌鸡卵黄抗体(IgY)的研制   总被引:4,自引:0,他引:4  
目的:观察鸡蛋黄中抗体的产量、纯度、来源及稳定性。方法:应用白色念珠菌作为抗原免疫25周龄Leghorn鸡,通过改良水溶法(WD)提取蛋黄中抗体IgY,双紫外光测定抗体含量,SDS-APGE电泳检测抗体纯度,Western blot免疫印迹法测定该抗体来源,ELISA检测热处理后的抗体活性。结果:抗体含量13mg/ml蛋黄液,抗体纯度达到95%,Western blot免疫印迹证明该抗体与鸡血清中的IgG具有相同的分子量和抗原性。ELISA检测热处理后的抗体活性,其具有良好的热稳定性。结论:鸡蛋黄内含有丰富的抗体,通过WD水溶提取法可得到高产量,高纯度的特异性抗体IgY,证明其来源于鸡血清中的IgG,对热具有高度稳定性。  相似文献   

6.
抗白念珠菌鸡卵黄抗体的制备及温度对其效价的影响   总被引:2,自引:0,他引:2  
目的:制备抗白念珠菌鸡卵黄抗体(IgY)并检测其生物学性能.方法:白念珠菌标准菌株10231灭活后作为抗原免疫25周龄产蛋海蓝鸡,从水溶法提取鸡卵黄IgY抗体.用考马斯亮蓝染色法测定IgY抗体提取液的蛋白浓度.用Tris-tricine电泳测定提取蛋白的相对分子质量、纯度,Western blot确定蛋白来源.以免疫组织化学检验抗白念珠菌IgY抗体与白念珠菌结合的特异性.ELISA测定抗白念珠菌IgY抗体的抗菌效价.结果:IgY抗体液中蛋白浓度为7.9 g/L,IgY抗体的纯度达到91.5%.提取的IgY抗体与鸡血清和正常鸡IgY抗体具有同源性.提取的IgY抗体可与白念珠菌发生特异性结合. ELISA测定抗白念珠菌IgY抗体的效价达到1:12 000.结论:研究得到的IgY,产量和纯度高,效价好,体温条件下48 h效价没有降低.在体外能够特异性地与白念珠菌结合.  相似文献   

7.
抗加特纳杆菌卵黄免疫球蛋白(IgY)的研究   总被引:4,自引:1,他引:3  
目的 观察鸡卵黄中抗加特纳杆菌抗体的产量、纯度、来源及稳定性。方法 用阴道加特纳杆菌作为抗原免疫Leghorn鸡。通过改良水稀释法提取卵黄中的IgY。双紫外光波长测定抗体含量,SDS-PAGE电泳检测抗体纯度。Westernblot免疫印迹法测定该抗体来源。ELISA检测IgY对温度、酸碱度的稳定性。结果 抗体含量12.8mg/mL蛋黄液,抗体纯度达95%。免疫印迹证明IgY与鸡血清中的IgC具有相同的分子量和抗原性。IgY具有良好的热稳定性,对酸碱具有一定的耐受力。结论 WD水稀释法能得到高产量、高纯度的特异性IgY,而且有良好的生物学活性。  相似文献   

8.
抗HLA-A*0201重链卵黄抗体的制备及初步鉴定   总被引:1,自引:0,他引:1  
目的制备高效价特异性鸡卵黄免疫球蛋白(Yolk immunoglobulin,IgY)抗体。方法用纯化HLA-A*0201重链抗原加完全福氏佐剂免疫岭南黄鸡,经水稀释法初步纯化浓缩后,用ELISA鉴定其免疫学活性,测定纯化后蛋白含量,并用SDS-PAGE进行分析鉴定。结果获得ELISA效价为1×106的抗重链IgY抗体,蛋白含量为9.77 mg/ml。经SDS-PAGE分析,出现2条蛋白带,纯度达90%以上。结论用重链抗原加福氏佐剂免疫种鸡制备的IgY抗体产量多、效价高,为结合HLA-A*0201复合体诱导特异性细胞毒性T淋巴细胞活化奠定了基础。  相似文献   

9.
目的观察鸡卵黄中抗耐甲氧西林金黄色葡萄球菌(methicillin-resistant staphylococcus aureus,MRSA)抗体的含量、纯度、来源及稳定性。方法用耐甲氧西林金黄色葡萄球菌(MRSA)作为抗原免疫Leghorn鸡;通过改良水稀释法提取卵黄中的IgY;双紫外光波长测定抗体含量,SDS-PAGE电泳检测抗体纯度;Western blot免疫印迹法测定该抗体来源;ELISA检测IgY对温度、酸碱度的稳定性。结果抗体含量13.3 mg/mL蛋黄液,抗体纯度达96%;免疫印迹证明IgY与鸡血清中的IgG具有相同的分子量和抗原性;IgY具有良好的热稳定性,对酸碱具有一定的耐受力。结论改良水稀释法能得到高产量、高纯度的特异性IgY,而且有良好的生物学活性。  相似文献   

10.
抗变形链球菌卵黄抗体的研制   总被引:2,自引:0,他引:2  
目的:通过对变形链球菌作为疫苗免疫蛋鸡,从鸡蛋中获得抗变形链球菌特异性抗体(抗S.mutans抗体),掌握鸡蛋中抗体滴度变化的规律,评价IgY的理化稳定性。方法:以变形链球菌Ingbritt株(血清型c型)作为抗原免疫蛋鸡,以直接凝集法测定鸡血清及卵黄中的抗全效价,并以口腔环境为基础进行IgY的稳定性研究。结果:通过免疫可成功诱导出高效价的抗变形链球菌卵黄抗体,免疫就答时间可长达32周,稳定性试验表明IgY在pH5-8,温度不超过65℃,40%以下的渗透压条件下活性稳定。结论:变形链球菌疫苗免疫蛋鸡可使鸡蛋产生高效价的IgY,且提取的IgY有一定的耐热、耐酸及耐高渗性能,适合于口腔环境应用,冷冻干燥法是一种较好的储存方式,IgY有很好的应用前景。  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.
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.  相似文献   

15.
Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P<0.01);the MAP decreased(P<0.01)and the HR increased drastically(P<0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients.  相似文献   

16.
Objective:To investigate the gene expression of osteoprotegerin(OPG) and osteoclast differentiation factor(ODF) in the bone tissue of patients with hip fracture due to osteoporosis. Methods:OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers(over 50 years old) with hip fracture(Observer Group) and 30 cases of hip facture sufferers with no osteoporosis(Control group) were analyzed with the Semi-Quantitative RT-PCR method. Results:The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion:Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption.  相似文献   

17.
Objective:To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas(SPTP). Methods:Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin(HE) staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results:Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin(9/9 cases), AAT(9/9 cases), NSE(9/9 cases), ACT(7/9 cases), CK20(2/9 cases), CgA(1/9 cases), S-100(3/gcases), PR(4/gcases), Syn(3/9 cases) and CD56(5/9cases), negative in CEA and ER. Conclusion:SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype.  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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