نتایج جستجو برای: pcr assay

تعداد نتایج: 367284  

Journal: :Journal of veterinary diagnostic investigation : official publication of the American Association of Veterinary Laboratory Diagnosticians, Inc 2004
Yashpal S Malik Devi P Patnayak Sagar M Goyal

Acute respiratory tract infections are leading causes of morbidity in poultry farms throughout the world. Avian pneumovirus (APV), avian influenza virus (AIV), and Newcastle disease virus (NDV) have been recognized as the most important pathogens of both chicken and turkeys. Single-virus reverse transcription-polymerase chain reaction (sRT-PCR) assays are used extensively to detect these viruse...

Journal: :Clinical chemistry 2003
Run Zhang Shi Joseph M Morrissey Janet D Rowley

BACKGROUND Characterization of fusion gene transcripts in leukemia that result from chromosome translocations provides valuable information regarding appropriate treatment and prognosis. However, screening for multiple fusion gene transcripts is difficult with conventional PCR and state-of-the-art real-time PCR and high-density microarrays. METHODS We developed a multiplex reverse transcripti...

Fariba Sheikhi-Shooshtari , Jalil Omidian , Maryam Fazeli ,

Cytomegalovirus is the most important pathogen affecting transplant recipients and causing significant morbidity and morbidity. The prevalence of CMV  infections in transplant recipient varies from country to country.  The aim of this study was to determine the prognostic value of PCR assay for CMV  detection in patients before Keratoplasty.  A total of 23 patient samples en...

Journal: :BioTechniques 1998
B A Arnold R W Hepler P M Keller

Recently developed PCR-based reverse transcriptase (RT) assays are useful in the detection of retroviruses since they are approximately a millionfold more sensitive than conventional RT assays. However, these assays are both labor- and time-intensive. The previously described product-enhanced reverse transcriptase (PERT) assay involves a two-step RT-PCR followed by detection and quantitation of...

2015
Véronique Wuyts Nancy H C Roosens Sophie Bertrand Kathleen Marchal Sigrid C J De Keersmaecker

With multiplex oligonucleotide ligation-PCR (MOL-PCR) different molecular markers can be simultaneously analysed in a single assay and high levels of multiplexing can be achieved in high-throughput format. As such, MOL-PCR is a convenient solution for microbial detection and identification assays where many markers should be analysed, including for routine further characterisation of an identif...

Journal: :BMC Veterinary Research 2021

Abstract Background The prevalence of gastrointestinal (GI) neoplastic polyps in Jack Russell terriers (JRTs) has increased Japan since the late 2000s. Recently, we demonstrated that JRTs with GI harbor identical germline variant APC gene (c.[462_463delinsTT]) heterozygous state. Thus, this disease is an autosomal dominant hereditary disorder. Although affected have distinct features, such as d...

Journal: :Journal of clinical microbiology 2008
John M Boyce Nancy L Havill

We compared the BD GeneOhm methicillin-resistant Staphylococcus aureus (MRSA) real-time PCR assay with the CHROMagar MRSA assay for the detection of MRSA in 286 nasal surveillance specimens. Compared with the CHROMagar MRSA assay, PCR had sensitivity, specificity, positive predictive value, and negative predictive values of 100%, 98.6%, 95.8%, and 100%, respectively. The mean PCR turnaround tim...

Journal: :Australasian Plant Pathology 2022

Abstract Halo blight of mungbean ( Vigna radiata var. ) is caused by the bacterium Pseudomonas savastanoi pv. phaseolicola . This pathogen transmitted via infected seed, facilitating spread disease into new cultivated areas. Prospective seed crops are currently subjected to visual inspection as a means determining status, however, this poor method that relies on visible symptoms and does not ac...

Journal: :Clinical Chemistry and Laboratory Medicine 2021

Abstract Objectives Compared to RT-PCR, lower performance of antigen detection assays, including the Lumipulse G SARS-CoV-2 Ag assay, may depend on specific testing scenarios. Methods We tested 594 nasopharyngeal swab samples from individuals with COVID-19 (RT-PCR cycle threshold [Ct] values ≤ 40) or non-COVID-19 (Ct >40) diagnoses. RT-PCR positive were assigned diagnostic, screening, monito...

Journal: :Diagnostic Pathology 2008
Steven J Drews AliReza Eshaghi Daria Pyskir Pam Chedore Ernesto Lombos George Broukhanski Rachel Higgins David N Fisman Joanne Blair Frances Jamieson

The Seeplex TB Detection-2 assay (Rockville, MD) is a nested endpoint PCR for the Mycobacterium tuberculosis complex (MTBC) targets IS6110 and MPB64 that utilizes dual priming oligonucleotide technology. When used to detect the presence of MTBC DNA in formalin-fixed paraffin-embedded tissue specimens, the sensitivity and specificity of this assay is equivalent to a labor-intensive traditional e...

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