BACKGROUND Peste des petits ruminants (PPR) is an economically important disease of small ruminants such as sheep and goats. The disease is characterized by severe pyrexia, oculo-nasal discharge, pneumonia, necrosis and ulceration of the mucous membrane and inflammation of the gastro-intestinal tract leading to severe diarrhea. A SYBR Green I based real time RT-PCR targeting the N gene of PPRV ...

the study of cytokines gene expression is quite important in various conditions of health and disease for the evaluation of clinical responses to new vaccination approaches. an absolute quantification is based on a calibration curve and production of standard controls to achieve more reliable results than in relative system. in this study we attempted to construct standard controls to evaluate ...

The nucleic acid stain SYBR Green I was evaluated for use with solid-phase laser cytometry to obtain total bacterial cell counts from several water sources with small bacterial numbers. Results were obtained within 30 min and exceeded or equaled counts on R2A agar plates incubated for 14 days at room temperature.

A real-time PCR assay using SYBR Green I for quantification of provirus load in a murine model of AIDS (i.e., LP-BM5 infection) was developed and validated. In this method, data are normalized against the 18S rRNA gene. The method has a dynamic range of 8 logs and a sensitivity of one copy.

Recent developments in PCR techniques provide the opportunity to quantify low copy numbers of specific nucleic acid sequences by quantitative, real-time PCR (1). The use of quantitative, real-time PCR is spreading due to its accuracy and relative simplicity. As a consequence, the number of laboratories equipped with an optical thermal cycler is increasing. The use of an apparatus for more than ...

An indirect competitive fluorescence immunoassay using a DNA/dye conjugate as antibody multiple labels was developed on 96-well plates for the identification and quantification of 2,2',4,4'-tetrabromodiphenyl ether (BDE-47) in aqueous samples. A hapten, 2,4,2'-tribromodiphenyl ether-4'-aldehyde, was synthesized, and was conjugated to bovine serum albumin to form a coating antigen. Specific reco...

Gene expression analysis plays an increasingly important role in many fields of biological research. The recently developed real-time PCR quantification method has many advantages over the conventional quantifications in terms of accuracy, sensitivity, dynamic range, high-throughput capacity, and absence of post-PCR manipulations (1, 2). Sequence-specific fluorescence-labeled probes (e.g., TaqM...

We have previously described the development of a onetube SYBR Green real-time RT-PCR assay for the detection and quantitation of infectious salmon anemia virus (ISAV) in various biological samples. The twofold aim of the present study was to verify that the optimized SYBR Green real-time RT-PCR conditions could detect ISAV isolates of different geographic origins, and to analyze the growth pat...

The precise diagnosis of American tegumentary leishmaniasis (ATL) is an essential task due to the disease's associated morbidity. A noninvasive, extremely sensitive, and highly specific exam is critical, particularly for mucosal leishmaniasis (ML), in which a low parasite quantity is expected. We aimed to compare the diagnostic accuracy of swab and biopsy sample analysis using SYBR Green- and T...