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1.
穴位接种IBD双价细胞苗鸡的抗原定位及免疫活性细胞监测 总被引：2，自引：0，他引：2
１５日龄滨白鸡后海穴接种鸡传染性法氏囊病（ＩＢＤ）双价细胞苗，采用免疫荧光组化跟踪抗原定位和免疫活性细胞的免疫形态学监测，以评价其免疫效果，同时与口服和肌肉免疫途径进行了对比试验，结果表明，后海穴穴位免疫优于口服免疫和肌肉免疫，本文穴位免疫机制进行了探讨。 相似文献
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应用放射免疫分析方法，测定比较了猪后海穴穴位免疫与常规口服、肌肉途径免疫猪传染性胃肠炎疫苗后，母猪初乳、常乳免疫仔猪血清中IL-2的含量。结果表明，初服中IL-2的含量以穴位免疫最高；常乳中IL-2含量各种免疫途径基本一致，处于较低水平。仔猪免疫后3d，血清中IL-2含量，穴位免疫与口服免疫基本一致，但均高于肌肉免疫及对照；免疫后7d，血清中IL-2含量，穴位免疫高于口服、肌肉免疫。从免疫调节因子方面看出，后海穴对动物机体免疫功能具有正向促进作用。 相似文献
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应用放射免疫分析方法,测定比较了猪后海穴穴位免疫与常规口服、肌肉途径免疫猪传染性胃肠炎疫苗后,母猪初乳、常乳及免疫仔猪血清中IL-2的含量.结果表明,初乳中IL-2的含量以穴位免疫最高;常乳中IL2含量各种免疫途径基本一致,处于较低水平.仔猪免疫后3 d,血清中IL-2含量,穴位免疫与口服免疫基本一致,但均高于肌肉免疫及对照;免疫后7 d,血清中IL-2含量,穴位免疫高于口服、肌肉免疫.从免疫调节因子方面看出,后海穴对动物机体免疫功能具有正向促进作用. 相似文献
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后海穴免疫猪瘟疫苗对小白鼠免疫机能的影响 总被引：2，自引：1，他引：1
在小白鼠后海穴、肌肉注射免疫猪瘟细胞培养活苗，观察不同免疫途径对小白鼠免疫功能的影响。结果：穴位及肌肉免疫后WBC总数均增高，但穴位免疫后第1天、7天高于肌肉免疫；淋巴细胞及T－淋巴细胞百分比，穴位免疫后第7天、10天高于肌肉免疫；血清中γ－球蛋白的百分含量，穴位、肌肉免疫后第1天、4天均增高，但穴位免疫后第7天、10天高于肌肉免疫组及对照组，而肌肉免疫与对照组间已无明显差异。这一实验结果表明：后海穴免疫猪瘟疫苗对免疫机能的影响优于常规免疫。 相似文献
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根据ＨＩ抗体水平的检测和攻毒实验，比较了雏鸡新城疫免疫的不同途径——后海穴免疫、口服免疫、肌肉注射免疫的免疫应答反应的效果。通过实验观察到后海穴免疫组比口服免疫组和肌肉注射免疫组的ＨＩ效价高，差异显著；攻毒保护率高。而且后海穴１／２常规剂量组与口服和肌注常规剂量组的免疫效果相似。表明后海穴能成为新域疫免疫的一种新途径。 相似文献
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根据ＨＩ抗体水平的检测和攻毒实验，比较了雏鸡新城疫免疫的不同途径－后海穴免疫、口服免疫、肌肉注射免疫的免疫应答反应的效果。通过实验观察到后海穴免疫组比口服免疫组和肌肉注射免疫组的ＨＩ效价高，差异显著；攻毒保护率高。而且后海穴１／２常规剂量组与口服和肌注常规剂量组的免疫效果相似。表明后海穴能成为新城疫免疫的一种新途径。 相似文献
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奶牛乳房炎多联苗（A）后海穴注射免疫试验研究 总被引：17，自引：2，他引：15
用奶牛乳房炎多联苗Ａ免疫泌乳牛２３２８头，其中后海穴注苗组免疫１１８８头，肌肉组１１４０头，两组同期对照牛分别为１６１８头和２０８９头。经统计，在注苗后４个月中各组临床型乳房炎的发病率，后海穴注射组和肌肉注射组比相应对照组分别降低发病率６３．５１％和４９．０１％，后海穴注苗组比肌肉注苗组平均提高免疫效果１４．４７％。用菌苗免疫幼兔，检测其抗体及免疫指标，结果表明，后海穴注射组均高于肌肉注射组和对照组。提示后海穴免疫是提高菌苗保护率的有效免疫途径之一 相似文献
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猪传染性胃肠炎与猪流行性腹泻穴位针刺免疫的研究 总被引：9，自引：0，他引：9
以猪传染性胃肠炎（ＴＧＥ）弱毒疫苗经与胃肠道疾病相关的足阳明胃经６个穴位和督脉经后海穴位共７个穴位的穴位免疫筛选试验，证明后海穴接种为３／３保护，是首选的接种穴位。以后海穴取代ＴＧＥ苗原鼻内途径的第二次接种，免疫４头妊娠母猪，对所产仔猪的保护数为３７／４１。以小剂量０．１ｍｌ及０．２ｍｌ后海穴接种３日龄仔猪，保护率分别为６０．５３％及１００％，而口服０．１ｍｌ只保护６．６７％。针刺１．５ｃｍ及３． 相似文献
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对小白鼠经不同途径注射抗原后脾单个核细胞的细胞因子IL—1βIL—2？… 总被引：4，自引：0，他引：4
应用ＲＴ－ＰＣＲ结合激光密度扫描定量分析方法，观察了不同途径免疫小白鼠的脾单个核细胞的细胞因子ＩＬ－１β，ＩＬ－２和ＩＦＮ－γ的ｍＲＮＡ动态表达水平。结果显示，穴位免疫组细胞因子ＩＬ－１β和ＩＬ－２的ｍＲＮＡ表达峰值和持续时间均大于非穴位免疫对照组。穴位免疫组与对照组比较，ＩＦＮ－γ的ｍＲＮＡ表达水平无统计学差异。这一结果在ｍＲＮＡ水平上证明经后海穴途径免疫可增强机体的免疫功能。提示在穴位免疫激活 相似文献
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D. Phoophitphong S. Srisuwatanasagul P. Tummaruk 《Anatomia, histologia, embryologia》2017,46(4):334-341
This study aimed to investigate leptin immuno‐staining of the porcine ovary in different reproductive stages. Ovaries from 21 gilts were collected from slaughterhouses. The ovarian tissue sections were incubated with a polyclonal anti‐leptin as a primary antibody. The immuno‐staining in ovarian tissue compartments was calculated using imaging software. Leptin immuno‐staining was found in primordial, primary, preantral and antral follicles. Leptin immuno‐staining was expressed in the oocyte and granulosa and theca interna layers in both preantral and antral follicles. In the corpora lutea, leptin immuno‐staining was found in the cytoplasm of the luteal cells. The leptin immuno‐staining in the granulosa cell layer of preantral follicles did not differ compared to antral follicles (90.7 and 91.3%, respectively, P > 0.05). However, the leptin immuno‐staining in the theca interna layer of preantral follicles was lower than antral follicles (49.4 and 74.3%, respectively, P < 0.001). There was no difference in leptin immuno‐staining in the granulosa cell layer between follicular and luteal phases (92.4 and 89.7%, respectively, P > 0.05). However, the leptin immuno‐staining in the theca interna layer of follicular phase was greater than that in the luteal phase (72.7 and 51.0%, respectively, P < 0.001). These findings indicated that leptin exists in different compartments of the porcine ovary, including the oocyte, granulosa cells, theca interna cells, corpus luteum, blood vessel and smooth muscles. Therefore, this morphological study confirmed a close relationship between leptin and ovarian function in the pig. 相似文献
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OBJECTIVE: To compare in vitro the load necessary for a partial and complete rupture of the muscular process arytenoid cartilage when a suture prosthesis is positioned by a bone trocar versus a trocar point needle and to compare failure mode. STUDY DESIGN: Experimental using cadaver specimens. SAMPLE POPULATION: Larynges from 18 Thoroughbred race horses, aged 2-20 years. METHODS: Arytenoid cartilages were separated randomly into 2 groups: group 1-suture prosthesis inserted directly through the muscular process using a curved trocar point needle and group 2-suture passed through a hole predrilled with a 3 mm bone trocar. Distracting force (constant rate, 1 mm/s) was applied to the suture until failure of the muscular process. Partial failure load, maximum load at complete failure, and force-time curve were recorded. Each arytenoid cartilage was examined, radiographed, and classified as having a linear or curved failure plane. RESULTS: No significant differences in mechanical test variables were detected. Failure mode followed the fissures occurring at the beginning of failure and then followed the tension axis. Significantly more linear failures occurred in group 2 (trocar) and more curved failures occurred in group 1 (needle). CONCLUSION: Use of a bone trocar for tunneling through the muscular process may reduce fissure formation. CLINICAL RELEVANCE: Use of bone trocar to create a hole in the muscular process of the arytenoid cartilage for suture passage in laryngoplasty may reduce fissure formation and decrease the risk of cartilage failure from suture pullout. 相似文献
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Horlacher S Lücker E Eigenbrodt E Wenisch S 《Berliner und Münchener tier?rztliche Wochenschrift》2002,115(1-2):1-5
There is no information whether the BSE agent is introduced into the human food chain through contamination of the lungs of cattle with central nervous system tissue (CNS). Studies in the United Kingdom and in the USA showed that CNS tissue could contaminate the lungs after using pneumatic powered air injection stunners (e.g. "The Knocker") or after pithing. Thus, pithing was forbidden in the European Union since January 2001. In German abattoirs conventional cartridge-fired stunners (e.g. model by Schermer) are usually applied. Pithing was used up to December 2000 in approx. 75% of the German abattoirs. In the present study 323 lungs of cattle were analysed for CNS. The lungs were derived from cattle exclusive stunned by use of the knocker from Schermer. 60% of the lungs contained emboli which were tested with immuno chemistry as well as immuno histochemistry to detect CNS. Two of 108 pooled samples showed a faint immuno reaction in the anti-NSE and anti-GFAP immunoblot. Further two particles showed a faint reaction for NSE and GFAP in immuno histochemistry, thus suggesting the presence of CNS. Even though CNS tissue could not be shown in the histological investigation, we used our findings to estimate the worst case scenario for human BSE exposure risk (HER) by lung contaminated by CNS emboli. The content of CNS in the samples was estimated to be about 0.11% when the respective immuno reactions were calibrated against standards containing known brain concentrations. Under the assumption that only one lung in the pooled samples was contaminated with BSE-infected central nervous tissue, the HER was calculated to reach a maximum of 2.2 x 10(-5) CoID50/consumer after consumption of a sausage with a portion of 10% lung. The results of our study suggest that the contamination of the lung with CNS after using a conventional cartridge-fired stunner cannot be excluded, however, the incidence appears to be very low. In addition, presumed CNS emboli, if at all, are microscopically small. Furthermore the incidence of BSE in Germany is very low and lungs of cattle are usually not consumed. Thus we can judge the potential for human oral exposure after consumption of lungs of cattle which were stunned in Germany to be extremely low. A final assessment, however, is impossible as there is no knowledge about the minimum infectious dose for humans. 相似文献
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Boylan Malena O’Brien Megan B. Beynon Charlotte Meade Kieran G. 《Veterinary research communications》2020,44(2):83-88
Veterinary Research Communications - The faecal-oral route is a predominant mode of infectious disease transmission and yet the immunology of the bovine oral cavity is poorly understood. The... 相似文献
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Three groups of animals were infected with three different African swine fever virus isolates. Antibody responses were measured, using immuno electro-osmophoresis, reverse single radial immunodiffusion and radioimmunoassay (RIA). The RIA detected antibody at 3–4 days whereas the diffusion tests did not detect it until 10 days post inoculation. Virus survival in different transport media was compared, using haemadsorption assays and RIA. Glycerinated medium reduced infectivity titres, although it had no effect on the ability of the RIA to detect antigen. 相似文献
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The frog Xenopus laevis is a model species for developmental biology but is also of significant interest to comparative immunologists. Amphibians are the oldest group of organisms in which both the B lymphocytes of some species undergo immunoglobulin (Ig) class switch recombination and also have a dedicated mucosal Ig isotype. The purpose of this study was to test the hypothesis that frog IgX would be produced in response to oral immunization. In order to facilitate studies of humoral, and especially mucosal immunity, in this model species, we developed a gavage technique for oral immunization. The result of this oral administration of antigen to frogs was assayed by the induction of the mucosal antibody isotype, IgX, in plasma by enzyme linked immunosorbant assay (ELISA), and a significant IgX upregulation was detected compared to frogs receiving systemic immunization into the coelom. These data are consistent with the view that IgX is the functional analog of mammalian IgA and mandate further studies of the relationship between IgX and IgA. Additionally, the gavage technique should be adaptable for functional studies of gut-associated immunology in other small aquatic vertebrates. 相似文献
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通过探讨不同质量浓度促渗剂月桂氮卓酮和冰片对鹿茸多肽透皮吸收的影响,优化出鹿茸多肽的给药方式,即通过口腔黏膜服用,为鹿茸运用于创伤、烧伤和美容提供依据。通过脾细胞增殖试验,检测鹿茸多肽的免疫活性。结果表明：（1）SDS-PAGE显示鹿茸酸粗提取物中含有不等量的蛋白质和多肽等,且多为大分子量多肽,但醇提多肽多为10000左右的某些小分子量多肽。（2）含5％月桂氮卓酮的醇提鹿茸多肽和含0．12％冰片的醇提鹿茸多肽比只含醇提鹿茸多肽溶液的累积透皮透过量多,说明促渗剂月桂氮卓酮和冰片能明显的增加醇提鹿茸多肽的透皮扩散速度和扩散的总量,而且0．12％冰片的促渗效率比5％月桂氮卓酮的促渗效果要高。（3）鹿茸多肽具有促进脾细胞增殖的活性,并存在剂量依赖性：醇提鹿茸多肽质量浓度从10mg／L上升到40mg／L时,对促进脾细胞增殖呈上升趋势,当质量浓度超过40mg／L时,增殖率增加不显著。 相似文献
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试验旨在研究酵母表达鸡IFN-α抗传染性法氏囊病病毒（IBDV）的效果及对其淋巴细胞信号分子PI3K和NF-κB p65的影响。将40只10日龄非免疫雏鸡随机分为IFN-α组和空白对照组,持续注射给药3 d后,于第3次给药后第1天开始每天心脏采血,持续3 d,并于最后一次采血后对雏鸡进行攻毒,在攻毒后开始每天心脏采血,连续3 d。通过MTT法检测淋巴增殖活性情况,ELISA测定不同时间段淋巴细胞中PI3K的水平、细胞中总NF-κB p65、细胞核中NF-κB p65蛋白表达含量及IBDV抗原量。结果显示,与对照组相比,攻毒前,IFN-α对淋巴增殖活性、细胞中PI3K和NF-κB p65的表达具有极显著地促进作用（P<0.01）;与攻毒前相比,攻毒后第1和2天IFN-α组淋巴增殖活性、细胞中PI3K和NF-κB p65的表达极显著增加（P<0.01）,IFN-α对IBDV-Ag具有极显著地抑制效果（P<0.01）。这些结果表明,IFN-α可通过增加PI3K激活NF-κB信号通路以增强机体免疫反应,并对IBDV-Ag有显著的抑制作用,本试验为IFN-α免疫增强和抗病毒作用的研究提供科学依据。 相似文献
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BIAN Ya-bin ZHANG Jing-yan WANG Lei WANG Xu-rong YANG Zhi-qiang WANG Xue-zhi MENG Jia-ren LI Jian-xi 《中国畜牧兽医》2016,43(2):423-430
This paper analysed the outputs of dendritic cells research articles based on Web of ScienceTM from 2006 to 2015 in order to know more about the overview of the global "dendritic cells"research.According to Web of ScienceTM core collection,the direction of research,countries/regions,scientific research institutions,key journals and the published articles of authors and top 10 cited articles were analysed using the title of dendritic cells.The United States was the leading country in the field of dendritic cells.In the quantity of paper,USA toped the list,followed by Germany and China.The core journal about dendritic cells research was "Journal of Immunology".Number of papers published in the first three were Inserm,University of Pittsburgh and Harvard University.Number of papers published in the former two were Shanghai Jiao Tong University and Zhejiang University in the domestic.The most citation paper was from University of Oxford.The direction of research about dendritic cells were mainly concentrated in immunology,cell biology and oncology.So the main target of the study of dendritic cells in China was the United States,the key research directions were immunology,cell biology and oncology. 相似文献