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11.
四种牛分枝杆菌特异性蛋白融合表达及在牛结核病诊断中的临床应用 总被引:2,自引:0,他引:2
以原核表达的MPB70-MPB83-CFP10-ESAT-6融合蛋白作为诊断抗原,建立牛结核病抗体检测间接ELISA(iELISA)。该iELISA与导致常见牛病的非相关抗原无交叉反应。用iELISA检测90份健康牛血清,确定样本阴阳性临界值(S/P)为0.17。与商品化胶体金试剂条(ICG)平行检测150份临床奶牛血清样本,结果与ICG的符合率为93.33%(140/150)。以结核菌素皮内试验(TST)为参考方法,检测了华中地区四个奶牛场的560头中国荷斯坦奶牛和90份进口奶牛结核阴性血清,结果iELISA与TST的总符合率为87.32%(489/560)。对其中22头奶牛进行鼻拭子分菌检验,4头分菌阳性奶牛的血清抗体检测也为阳性,iELISA与细菌培养的总符合率为77.27%(17/22)。以TST为参考方法,iELISA的敏感性和特异性分别为72.37%和89.67%。 相似文献
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AIM:To construct the recombinant adenoviral vector containing human fibroblast growth factor 10 (hFGF-10) gene, and to study the effect of the recombinant adenovirus on the proliferation of kerotinocytes. METHODS:HFGF-10 gene was amplified by PCR and ligated with shuttle vector pAdTrack-CMV to get the recombinant plasmid pAdTrack-CMV-hFGF-10, which was linearized with PmeI and transferred into Escherichia coli BJ5183 containing the adenoviral bone plasmid pAdEasy-1 for homologous recombination to obtain the recombinant adenoviral plasmid pAdEasy-hFGF-10. The recombinant adenoviral plasmid was then transfected into HEK-293 cell line to package and amplify the recombinant adenovirus. The expression of hFGF-10 in HaCat cells infected with the recombinant adenovirus was detected by Western blotting. The influence of the recombinant adenovirus on the proliferation of kerotinocytes was checked by MTT. RESULTS:The recombinant adenovirus containing hFGF-10 gene was successfully constructed, which effectively infected HaCat cells. The result of Western blotting showed that a protein in culture media of the infected HaCat cells reacted with hFGF-10 antibody. The recombinant adenovirus stimulated the proliferation of kerotinocytes. CONCLUSION:HaCat cells infected with the recombinant adenovirus expresses and secrets hFGF-10 protein, which promotes the proliferation of HaCat cells. 相似文献
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AIM: To establish the influenza infected mouse model and study the anti-inflammatory effect of ganmao shuangjie heji. METHODS: IV FM1 infected mice were used as the animal model. The changes of pathology and the cytokine TNF-α, IFN-γ and IL-10 in the lung were observed by HE staining and ELISA (double antibody sandwich enzyme linked immunosorbent assay) after ganmao shuangjie heji treatment. RESULTS: After infected by influenza virus, severe interstitial pneumonia was induced in the model group. Mild interstitial pneumonia was observed in ganmao shuangjie heji treated group. The protein expressions of cytokine TNF-α, IFN-γ and IL-10 were higher in model group than those in the control group. The protein expressions of TNF-α and IFN-γ in ganmao shuangjie heji treated group decreased and IL-10 expression increased significantly compared with model group. CONCLUSION: Ganmao shuangjie heji decreases the expressions of TNF-α and IFN-γ, and increases the expression of IL-10, thus, alleviates inflammatory injury. The clinical application of this medicine can shorten the course of disease. 相似文献
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AC10大豆是以75-23-1-5-15品系经激光红宝石辐照,选衣出75-54红品系,以之为父本,以西德青豆SogleenOgden为线本进行有性杂交,再用红宝石2500V辐射选能而成,具早熟、高产、优质等特点,667m^2产量154.47kg,比对照八个月爆增产30.66%。 相似文献
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B.E. TORSTENSEN D.A. NANTON P.A. OLSVIK H. SUNDVOLD & I. STUBHAUG 《Aquaculture Nutrition》2009,15(4):440-451
Relative gene expression pattern of fatty acid transport proteins (FATP and cd36), intracellular fatty acid-binding proteins (FABP3, FABP10 and FABP11), β-oxidation-related genes [carnitine palmitoyl transferase II (CPTII), peroxisome proliferator-activated receptor β (PPARβ), acyl-CoA oxidase (AOX), long-chain fatty acyl-CoA synthetase (FACS), acyl-CoA dehydrogenase (dehydrogenase)] and uncoupling protein 2 (UCP2) was assessed by RT-qPCR in Atlantic salmon muscle (red and white), liver, heart, myosepta and visceral fat. FABP11, a FABP isoform not previously described in Atlantic salmon, was highly expressed in visceral fat and myosepta and at the lower level in red muscle, white muscle, myosepta and heart. Furthermore, Atlantic salmon were fed either a diet containing fish oil (FO) or a complete replacement of FO with a vegetable oil blend (55% rapeseed oil, 30% palm oil and 15% linseed oil; VO) for the production cycle (27 months from start of feeding and until ∼4.5 kg mean weight). The expression of genes related to β-oxidation, fatty acid uptake and transport in the white muscle indicate ( n = 3) significant down-regulation in VO fed Atlantic salmon and correlated with previously reported white muscle triacylglycerol stores and β-oxidation. FABP11 in visceral fat and myosepta was also down-regulated in VO fed fish. 相似文献
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旨在克隆山羊SRSF10基因序列,明确其生物学特性,并通过过表达和干扰手段阐明SRSF10对山羊肌内脂肪细胞分化的影响。本研究以简州大耳羊(Capra hircus)为试验对象,利用RT-PCR技术克隆山羊SRSF10基因序列,并进行生物信息学分析; 利用实时荧光定量PCR(real-time quantitative PCR,qPCR)技术研究其在成脂诱导分化不同阶段细胞中的表达水平; 转染pcDNA3.1-SRSF10过表达载体和SRSF10-siRNA至山羊肌内前体脂肪细胞并诱导分化,通过油红O和Bodipy染色法从形态学上明确其对脂滴积聚的影响; 通过qPCR方法检测脂肪细胞分化标志基因表达的变化。结果显示,获得山羊SRSF10基因序列为1 026 bp,其中CDS区552 bp,共编码183个氨基酸; SRSF10在诱导分化96 h的肌内脂肪细胞中表达量最高; 过表达和干扰山羊SRSF10分别促进和抑制了肌内脂肪细胞中的脂滴积聚; 过表达后基因SREBP1、PPARγ和C/EBPα的相对表达量极显著上调(P < 0.01),干扰后分化标志基因SREBP1、PPARγ和C/EBPα相对表达水平极显著降低(P < 0.01)。结果表明,山羊SRSF10是肌内脂肪细胞分化的正调控作用因子,并且这种调控作用可能主要通过调节SREBP1、PPARγ和C/EBPα的表达来实现。 相似文献
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Cecilia Rohdin Douglas Gilliam Caroline A. O’Leary Dennis P. O’Brien Joan R. Coates Gary S. Johnson Karin Hultin J?derlund 《Acta veterinaria Scandinavica》2015,57(1)