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論文標(biāo)題及摘要如下,麻煩各位大俠幫忙翻譯一下,并附件全文,若能給傳全文翻譯,另給200金幣聊表謝意,再次感謝!(翻譯需要專業(yè)一點(diǎn),謝謝) Development of a Multiplex Bead-Based Assay for Detection of Hepatitis C Virus Bruna P. F. Fonseca,1* Christiane F. S. Marques,1 Lílian D. Nascimento,1 Marcelle B. Mello,1 Leila B. R. Silva,1 Nara M. Rubim,1 Leonardo Foti,2,3 Edimilson D. Silva,1 Antonio G. P. Ferreira,1 and Marco A. Krieger2,3 Laborato´rio de Tecnologia Diagno´stica, Bio-Manguinhos-Fiocruz, Av. Brasil 4365, CEP 21040-360 Rio de Janeiro, RJ, Brazil1; Instituto Carlos Chagas-Fiocruz, R. Professor Algacyr Munhoz Mader 3775, CEP 81350-010 Curitiba, PR, Brazil2; and Instituto de Biologia Molecular do Parana´, R. Professor Algacyr Munhoz Mader 3775, CEP 81350-010 Curitiba, PR, Brazil3 Received 29 June 2010/Returned for modification 19 August 2010/Accepted 4 February 2011 Abstract:Hepatitis C virus (HCV) infection is a major burden to public health worldwide, affecting approximately 3% of the human population. Although HCV detection is currently based on reliable tests, the field of medical diagnostics has a growing need for inexpensive, accurate, and quick high-throughput assays. By using the recombinant HCV antigens NS3, NS4, NS5, and Combined, we describe a new bead-based multiplex test capable of detecting HCV infection in human serum samples. The first analysis, made in a singleplex format, showed that each antigen coupled to an individual bead set presented high-level responses for anti-HCVpositive reference serum pools and lower-level responses for the HCV-negative pools. Our next approach was to determine the sensitivity and specificity of each antigen by testing 93 HCV-positive and 93 HCV-negative sera. When assayed in the singleplex format, the NS3, NS4, and NS5 antigens presented lower sensitivity values (50.5%, 51.6%, and 55.9%, respectively) than did the Combined antigen, which presented a sensitivity of 93.5%. All antigens presented 100% specificity. These antigens were then multiplexed in a 4-plex assay, which resulted in increased sensitivity and specificity values, performing with 100% sensitivity and 100% specificity. The positive and negative predictive values for the 4-plex assay were 100%. Although preliminary, this 4-plex assay showed robust results that, aligned with its small-sample-volume requirements and also its cost- and timeeffectiveness, make it a reasonable alternative to tests currently used for HCV screening of potentially infected individuals. |

銀蟲 (初入文壇)
| 對世界范圍的公眾健康而言,丙型肝炎病毒(HCV)的感染是一個(gè)主要負(fù)擔(dān),使大約3%的人口深受疾病侵襲。盡管目前HCV的檢測都基于可靠的試驗(yàn),但醫(yī)療診斷學(xué)領(lǐng)域?qū)r(jià)錢低廉,精確快速且高通量的化驗(yàn)方法已有越來越迫切的需求。我們通過使用重組的HCV抗原NS3, NS4, NS5以及結(jié)合抗原,描述了一種新型的基于微珠的多通路化驗(yàn)方法,能夠在人體血清樣本中檢測出HCV感染。在單通路形式中完成的第一步分析表明每一種抗原會(huì)連接起來,形成一套獨(dú)立的珠狀體系,對于抗HCV陽性參照血清池呈現(xiàn)出高響應(yīng),而對于抗HCV陰性血清池則表現(xiàn)為低響應(yīng)。我們的下一步驟就是通過檢測93HCV陽性血清和93HCV陰性血清來確定每一種抗原的靈敏性和特異性。當(dāng)這種化驗(yàn)方法在單通路形式中實(shí)施時(shí),NS3, NS4, NS5抗原比結(jié)合抗原表現(xiàn)出較低的靈敏度值(分別為50.5%, 51.6%, 以及 55.9%),而結(jié)合抗原呈現(xiàn)的靈敏度為93.5%。所有的抗原都表現(xiàn)出100%的特異性。然后,將這些抗原構(gòu)成多通路,形成一種4通路的化驗(yàn)方法,這便使得靈敏度和特異性得以增強(qiáng),表現(xiàn)為100%的靈敏度和100%的特異性。這種4通路化驗(yàn)方法的陽性和陰性預(yù)測值為100%。盡管4通路化驗(yàn)方法尚在初級階段,但已經(jīng)表現(xiàn)出令人鼓舞的結(jié)果。針對篩選HCV潛在的感染者而言,它與小體積樣品容積的需要相一致,而且它的時(shí)間成本效益突出,都會(huì)令它成為一個(gè)對現(xiàn)行應(yīng)用的測試手段的適當(dāng)替代品。 |
銀蟲 (初入文壇)
|
忘了發(fā)標(biāo)題 一種基于微珠的適用于丙型肝炎病毒檢測的多通路化驗(yàn)方法的發(fā)展 對世界范圍的公眾健康而言,丙型肝炎病毒(HCV)的感染是一個(gè)主要負(fù)擔(dān),使大約3%的人口深受疾病侵襲。盡管目前HCV的檢測都基于可靠的試驗(yàn),但醫(yī)療診斷學(xué)領(lǐng)域?qū)r(jià)錢低廉,精確快速且高通量的化驗(yàn)方法已有越來越迫切的需求。我們通過使用重組的HCV抗原NS3, NS4, NS5以及結(jié)合抗原,描述了一種新型的基于微珠的多通路化驗(yàn)方法,能夠在人體血清樣本中檢測出HCV感染。在單通路形式中完成的第一步分析表明每一種抗原會(huì)連接起來,形成一套獨(dú)立的珠狀體系,對于抗HCV陽性參照血清池呈現(xiàn)出高響應(yīng),而對于抗HCV陰性血清池則表現(xiàn)為低響應(yīng)。我們的下一步驟就是通過檢測93HCV陽性血清和93HCV陰性血清來確定每一種抗原的靈敏性和特異性。當(dāng)這種化驗(yàn)方法在單通路形式中實(shí)施時(shí),NS3, NS4, NS5抗原比結(jié)合抗原表現(xiàn)出較低的靈敏度值(分別為50.5%, 51.6%, 以及 55.9%),而結(jié)合抗原呈現(xiàn)的靈敏度為93.5%。所有的抗原都表現(xiàn)出100%的特異性。然后,將這些抗原構(gòu)成多通路,形成一種4通路的化驗(yàn)方法,這便使得靈敏度和特異性得以增強(qiáng),表現(xiàn)為100%的靈敏度和100%的特異性。這種4通路化驗(yàn)方法的陽性和陰性預(yù)測值為100%。盡管4通路化驗(yàn)方法尚在初級階段,但已經(jīng)表現(xiàn)出令人鼓舞的結(jié)果。針對篩選HCV潛在的感染者而言,它與小體積樣品容積的需要相一致,而且它的時(shí)間成本效益突出,都會(huì)令它成為一個(gè)對現(xiàn)行應(yīng)用的測試手段的適當(dāng)替代品。 |
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