نتایج جستجو برای: elisa and rt
تعداد نتایج: 16836501 فیلتر نتایج به سال:
Based on nucleotide sequence and phylogenetic analysis of the partial VP6 genes, group A rotaviruses can be mainly differentiated into two genogroups. In this study, a method employing reverse transcription-PCR (RT-PCR) and degenerate primers was established to assign the VP6 genogroup. VP6 genogroup I and genogroup II could be determined according to the sizes of the amplicons: 380 and 780 bp,...
Definitive diagnosis of foot-and-mouth disease (FMD) requires the detection of virus antigen or genome in clinical material. The aim was performance of real-time RT-PCR (rRT-PCR) procedures for this purpose. Twenty nine cattle samples of vesicular epithelial and nasal swabs from four localities of Ismailia governorates were examined by ELISA, VN, RT-PCR and rRT-PCR. The results showed that 11 s...
The shattering rise in dengue virus infections globally has created a need for an accurate and validated rapid diagnostic test for this virus. Rapid diagnostic test (RDT) and reverse transcription-polymerase chain reaction (RT-PCR) diagnostic detection are useful tools for diagnosis of early dengue infection. We prospectively evaluated the diagnostic performance of nonstructural 1 (NS1) RDT and...
A method for the rapid diagnosis of early dengue virus (DENV) infection is highly needed. Here, a prototype reverse transcription-recombinase polymerase amplification (RT-RPA) assay was developed. The assay detected DENV RNA in <20 min without the need for thermocycling amplification. The assay enabled the detection of as few as 10 copies of DENV RNA. The designed RT-RPA primers and exo probe d...
ویروس کوتولگی زرد پیاز یکی از اعضای خانواده پتی ویریده و جنس پتی ویروس و دارای ذرات رشته ای خمش پذیر به طول nm 772 -723 می باشد و ژنوم آن شامل یک مولکول rna خطی تک رشته مثبت (+ssrna) می باشد و توسط شته ها به صورت ناپایا منتقل می گردد. به منظور شناسایی ویروس کوتولگی زرد پیاز در بهار و تابستان 1389 از مناطق عمده پیاز کاری استان های خراسان شمالی و رضوی نمونه برداری صورت گرفت. نمونه های برگی دارای ...
چکیده طی دو دهه اخیر روشهای تشخیص hiv نقش مهمی را در حفظ سلامت در جهان ایفا کرده اند. روشهای مولکولی با حساسیت بالا نیز که اخیرا توسعه یافته اند قادرند عفونت را در مراحل بسیار ابتدایی نیز تشخیص دهند ؛ اما بسیاری از این تکنولوژی ها در کشور های در حال توسعه به دلایل اقتصادی قابل اجرا نیستند ؛ ولی چنانچه از هزینه های مربوط به این روشها کاسته شود استفاده از انها میسر می شود . با شروع عفونت hiv-...
during 2010-2011, real-time pcr procedure was used to detecting fmdv rna on 147 epithelium samples from the field. in this survey, for real-time pcr from 3d gene segment as conserve region selected for tracking all of seven serotypes fmdv. the assay detected the viral rna in all serotypes of fmdv. the rrt-pcr specifically detected fmd virus in sample with greater sensitivity than our convention...
This study was carried out in bean seeds Isparta and Antalya provinces to determine Bean common mosaic virus (BCMV) 2016. For this purpose; 106 seed samples were collected from the research area. Seed used for biological, serological, molecular methods. The incidence, as a percentage of BCMV, found 87.73% by DAS-ELISA 90.56% Immunocapture Reverse Transcriptase-Polymerase Chain Reaction (IC-RT-P...
Vitellogenin (VTG) induction has proved to be a valuable biomarker for assessing exposure to environmental estrogens in fish. The widespread use of VTG in this regard has lead to the need for standardized assays to quantify VTG, and monoclonal antibodies have the potential to help accomplish this. A VTG enzyme-linked immunosorbent assay (ELISA) was developed using a monoclonal antibody prepared...
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