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11.
Although the biochemical dissection of parasitoid-host interactions is becoming well characterized, the molecular knowledge concerning them is minimal. In order to understand the molecular bases of the host immune response to parasitoid attack, we explored the response of Papilio xuthus parasitized by the endoparasitic wasp Pteromalus puparum using proteomic approach. By examining the differential expression of plasma proteins in the parasitized and unparasitized host pupae by two-dimensional (2D) electrophoresis, 16 proteins were found to vary in relation to parasitization compared with unparasitized control samples. All of them were submitted to identification by mass spectrometry coupled with a database search. The modulated proteins were found to fall into the following functional groups: humoral or cellular immunity, detoxification, energy metabolism, and others. This study contributes insights into the molecular mechanism of the relationships between parasitoids and their host insects. Project supported by the National Basic Research Program (973) of China (No. 2006CB102005), the National Natural Science Foundation of China (Nos. 30571251 and 30170626), the Program for New Century Excellent Talents in University of the Ministry of Education of China (No. NCET-05-0513), and the Innovation Research Team Program of the Ministry of Education of China (No. IRT0535)  相似文献   
12.
The settlement curve of the foundation endured the ramp load is an S-type curve, which is usually simulated via Poisson curve. Aimed at the difficulty of preferences in Poisson curve, an immune algorithm (IA) is used. IA is able to obtain a multiple quasi-optimum solution while maintaining the population diversity. In this paper, IA is used in an attempt to obtain accurate settlement prediction. The predicted settlements obtained by IA are compared with those predicted by the least squares fitting method (LSM), the Asaoka method and the genetic algorithm (GA). The results show that IA is a useful technique for predicting the settlement of foundations with an acceptable degree of accuracy and has much better performance than GA and the Asaoka methods.  相似文献   
13.
093只 1日龄艾维茵商品雏鸡 ,随机分为 2组 ,对照组 2 46 2只 ,试验组 46 31只。研究了大群饲养条件下 ,免疫生长促进剂C96 (1 1mg/kg饲料 )对高浓度氨环境肉鸡生长性能的影响 ,结果表明 :1 0 - 32日龄试验组鸡在潮湿垫料和 5 0PPm的氨环境中 ,生长速度 (日增重 )略低于对照组。但整个试验期 ,试验组与对照组鸡体重、日增重等生长性能指标均无显著差异。试验组饲养后期有较强代偿性生长趋势  相似文献   
14.
目的观察8w大强度训练和补充谷氨酰胺对细胞免疫机能的影响,以期为赛艇运动员免疫机能的研究提供参考资料。方法采集陕西省赛艇队公开级二线16名男性运动员实验前后晨安静时静脉血5ml测T淋巴细胞亚群和IL-2。结果H组(谷氨酰胺+大强度训练组)和C组(大强度训练组)运动员8周大强度训练后IL-2较自身安静时都降低,服用谷氨酰胺组(H组)外周血IL-2下降17.9%(P〉0.05);C组下降48.5%(P〈0.001);实验后H组CD3^+无显著性变化,CD4^_上升7.6%(P〉0.05),CD8^+下降16.6%(P〈0.05),CD4^+/CD8^+比值升高17.3%(P〈0.05);C组CD3^+下降(p〈0.05),CD4^+下降20.6%(P〈0.05),CD8^+无明显变化,CD4^+/CD8^+比值下降21.0%(P〈0.05)。结论8周大强度训练明显抑制赛艇运动员机体细胞免疫功能,补充谷氨酰胺8w可以提高赛艇运动员细胞免疫功能。  相似文献   
15.
提出一种基于人工免疫多模态函数优化的PID(Proportional Integral Derivative)参数离线整定控制器的算法.该算法通过设计多模态函数,搜索出多模态函数的所有峰值点,这些峰值点即是极优的Kp,Ki,Kd参数组合集.同时,该算法将无限个数据聚类成有限个数据,决策者可以根据实际应用要求,在有限个数据内选择最合适的最优决策.Matlab仿真结果证明了该算法的优越性和有效性.  相似文献   
16.
We report an important observation that the surface conductivity of antibody layer immobilized on polylysine-coated glass substrate decreases upon the formation of complex with their specific antigens. This change in conductivity has been observed for both monoclonal and polyclonal antibodies. The conductance of monoclonal mouse IgG immobilized on polylysine-coated glass substrate changed from 1.02×10−8 Ω−1 to 1.41×10−11 Ω−1 at 10 V when complex is formed due to the specific biomolecular interactions with rabbit anti-mouse IgG F(ab′)2. Similar behavior was observed when the same set up was tested in two clinical assays: (1) anti-Leishmania antigen polyclonal antibodies taken from Kala Azar positive patient serum interacting with Leishmania promastigote antigen, and (2) anti-p21 polyclonal antibodies interacting with p21 antigen. The proposed concept can represent a new immunodiagnostic technique and may have wide ranging applications in biosensors and nanobiotechnology too.  相似文献   
17.
健身跑对老年人淋巴细胞转化率及血清免疫球蛋白的影响   总被引:3,自引:0,他引:3  
为观察健身跑锻炼对老年人淋巴细胞转化率及血清免疫球蛋白的影响.对18例从事健身跑锻炼男性老年人(健身跑组)和18例未参加任何锻炼的男性老年人(不锻炼组)淋巴细胞转化率和血清免疫球蛋白水平进行测定和比较分析.结果发现:长期坚持健身跑锻炼的老年人CD4 百分比和CD4 /CD8 比值明显高于不锻炼组(P<0.05、P<0.01),CD8 百分比明显低于不锻炼组(P<O.05);锻炼组血清IgG、IgA、IgM在正常值范围内得以提高,但无显著性差异,不锻炼组血清IgM显著低于正常值(P<0.05).表明:长期健身跑锻炼对老年人免疫系统的增强、心理健康水平的提高,衰老过程的延缓具有重要作用.  相似文献   
18.
热应激是热带、亚热带及温带地区影响畜牧业健康发展的最常见因素之一。许多国家积极采取多种措施防控热应激的发生。富硒酵母因其广泛、确实、高效的生物学特性广泛用于缓解动物热应激的研究。本文对富硒酵母在提高热应激动物生产性能、改善营养物质代谢和增强机体免疫力等方面的作用进行综述,为进一步开发利用富硒酵母缓解动物热应激提供研究基础。  相似文献   
19.
过度训练对大鼠红细胞免疫功能的影响   总被引:1,自引:1,他引:0  
为了探讨过度训练对红细胞免疫功能的影响。采用红细胞免疫检测花环试验的方法,对红细胞的免疫功能进行了定性和定量分析。结果表明,第四周末,训练组红细胞C3b受体花环率(RBC-C3bRR)和红细胞免疫复合物花环率(RBC-ICR)与对照组比较,无显著性差异;第八周末,训练组RBC-C3bRR和RBC-ICR与对照组比较,显著下降。以上结果显示,过度训练对红细胞免疫有抑制作用。  相似文献   
20.
The Geschwind-Behan-Galaburda hypothesis of cerebral lateralization postulates an association between immune disorders and learning disabilities. So far, the empirical evidence for such a relationship has been ambiguous. The present study is an attempt to investigate the hypothesis in a population where all the individuals were affected by immune disorders. Thus, 29 students in a special school for asthmatic children (total number of students in the school: 32) were investigated. A number of reading tests with special focus on word decoding were administered. The parents filled in a detailed questionnaire on the prevalence of reading difficulties and immune disorders among the other family members. The proportion of students with reading problems — especially phonological problems — was much higher than would be expected in a normal population. Among the family members we also found an elevated incidence of both reading problems and immune disorders. A cautious interpreptation of these findings leads to tentative and partial support of the Geschwind-Behan-Galaburda hypothesis.  相似文献   
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