抗原

Isolation, cultivation and identification of human embryonic NSC from cerebral cortex of 7-12 week abortus. By using flow cytometry and MTT assay, the effects of various concentration of TSPG and TSPG cooperating with cytokines in NSC culture media for 3 days on proliferation of human embryonic NSC has studied. By employing immunocytochemistry assay of the expression of tyrosine hydroxylase, the effect of different dilution of TSPG and TSPG cooperating with IL-1 on induced differentiation of human embryonic NSC into dopaminergic neuron has researched.

从7～12周人工流产胚胎脑组织中分离培养人胚胎NSC，免疫细胞化学鉴定NSC特异性nestin抗原表达，在NSC的培养体系中加入TSPG，采用流式细胞术和MTT法检测不同浓度TSPG以及TSPG与EGF，bFGF联合应用对人胚胎NSC增殖的影响；经免疫细胞化学检测培养细胞酪氨酸羟化酶表达，分析不同浓度TSPG以及TSPG与IL-1联合应用对NSC定向诱导为DA能神经元的影响。

Several antigens of pathogenic microorganisms, such as C subunit of tetanus toxin and the Brucella abortus ribosomal protein L7/L12, were successfully expressed in Lactococcus lactis.

破伤风毒素片段C、布氏杆菌L7／L12蛋白等多种病原微生物抗原已成功在乳酸乳球菌中表达，并已证明部分重组乳酸乳球菌作为黏膜免疫疫苗可以同时刺激局部黏膜免疫应答和系统免疫应答。

Equal amount of absolute alcohol was given to the control group. The expressions of vitamin D receptor in HL-60 cells of each group were identified by Western blot analysis, and cellular morphological changes were observed after being stained by Wright-Giemsa.

Western印迹技术鉴定维生素D受体在各组HL-60细胞的表达；Wright-Giemsa染色观察细胞形态学变化；流式细胞术检测细胞表面标志物CDl4抗原的表达；反转录-聚合酶链反应法分析c-myc基因的表达。

The key to feature extraction is to select the optimal feature combination from all the features. In this study, the optimal color feature combination,{/G,(R+4G+B)/6, H variance, S variance}, is selected using genetic neural network at first. Then the main texture features including the mean, variance, energy and entropy of the cooccurrence matrix, the secondary texture features including the maximum frequency number, absolute uniform, inertia and importance of the co-occurrence matrix are extracted.

在此基础上，提出适合多阈值和小目标图像分割的免疫遗传图像分割方法，该方法借鉴了生物免疫系统自调节、抗原识别和记忆功能，并结合了遗传算法对图像进行自适应区域的阈值分割，改善了遗传算法优化复杂问题时存在收敛速度慢和易陷于局部最优的不足，克服了传统阈值分割方法对目标大小的限制，是一种新型的有效的图像分割方法。

Objective To study the diagnostic values of staphylococcal protein A-enzyme linked immunoadsorbent assay and mite antigen piece-indirect fluorescent antibody test on pulmonary acariasis.

目的 探讨葡萄球菌A蛋白-酶联免疫吸附试验和螨成虫抗原片间接荧光抗体试验对肺螨病的诊断价值。

Acquired immunity is based on the recognition of antigen by B cells and T cells and is activated when innate mechanisms are insufficient to stem further invasion by pathogens.

后天免疫以B细胞和T细胞对于抗原的辨识为基础，在天生机制不足以遏止抗体进一步入侵时活跃起来。

Acquired immunity is based on the recognition of antigen by B cells and T cells and is activated when innate mechanisms are insufficient to stem further invasion by pathogen s.

后天免疫以B细胞和T细胞对于抗原的辨识为基础，在天生机制不足以遏止抗体进一步入侵时活跃起来。

The branch of biomedicine that is concerned with the structure and function of the immune system, innate and acquired immunity, the bodily distinction of self from nonself, and laboratory techniques involving the interaction of antigens with specific antibodies.

免疫学研究免疫系统的结构和功能、先天或后天的免疫能力、身体对同类和异类的辨别以及带特殊抗体的抗原相互作用的实验技术等的生物医学分支 immuno-免疫 immunoadsorbent n。

Recognition of microbial components by TLRs initiates signal transduction pathways, which triggers expression of genes. These gene products control innate immune responses and further instruct deelopment of antigen-specific acquired immunity.

机体能通过TLRs识别病原体成分引发的信号转导途径能激发体内的基因表达，这些基因产物能控制机体固有免疫反应，并进一步指导后天抗原特异性的获得性免疫的发展。

This indicated that CD4~+CD25~+ regulatory T cells played acritical role in mediating maternal tolerance to the fetus and maintainingpregnancy.

这些研究表明，CD4~+CD25~+调节性T细胞在介导母体对胚胎这个半同种异体抗原的免疫耐受及维持妊娠方面发挥了重要作用。

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。