Results 31 to 40 of about 273,066 (341)

What are we missing? Three cases of severe COVID-19 pneumonia with negative testing

open access: yesSAGE Open Medical Case Reports, 2020
The COVID-19 pandemic has drastically affected health care systems globally. Reverse transcriptase-polymerase chain reaction is currently the preferred method of detecting COVID-19; however, sensitivity of this test remains questionable.
Aisha Siddiqui   +5 more
doaj   +1 more source

Reverse transcriptase-quantitative polymerase chain reaction (RT-qPCR) and its usefulness in soil microbial ecological studies - A review [PDF]

open access: yes, 2014
The reverse transcriptase quantitative polymerase chain reaction (RT-qPCR) is a highly specific polymerase chain reaction (PCR) method that allows one to detect very low transcription levels of functional gene(s) in soil.
Asuming-Brempong, S
core   +2 more sources

Expanding molecular diagnostic capacity for COVID-19 in Ethiopia: operational implications, challenges and lessons learnt

open access: yesThe Pan African Medical Journal, 2021
Efforts towards slowing down coronavirus (COVID-19) transmission and reducing mortality have focused on timely case detection, isolation and treatment.
Adisu Kebede   +17 more
doaj   +1 more source

A semi-quantitative RT-PCR method to measure the in vivo effect of dietary conjugated linoleic acid on porcine muscle PPAR gene expression

open access: yesBiological Procedures Online, 2003
Conjugated linoleic acid (CLA) can activate (in vitro) the nuclear transcription factors known as the peroxisome proliferators activated receptors (PPAR).
Meadus W.J.
doaj   +1 more source

Capacity of rTth polymerase to detect RNA in the presence of various inhibitors. [PDF]

open access: yesPLoS ONE, 2018
The full potential of the real-time reverse transcription polymerase chain reaction (RT-PCR) as a rapid and accurate diagnostic method is limited by DNA polymerase inhibitors as well as reverse transcriptase inhibitors which are ubiquitous in clinical ...
Dongyang Cai   +4 more
doaj   +1 more source

REVERSE TRANSCRIPTASE-POLYMERASE CHAIN REACTION ASSAYS FOR PROSTATE CANCER

open access: yesUrologic Clinics of North America, 1997
RT-PCR, if targeted against a prostate-specific marker, can be a highly specific and sensitive assay to detect the presence of occult prostate cancer cells at sites far distant from the primary tumor. The low false-positive rate (0.8%) observed when combining most published studies and the high rate of detection of prostate cells in metastatic patients
C A, Olsson   +3 more
openaire   +2 more sources

The polymerase chain reaction-based SARS-CoV-2 detection

open access: yesUniversidad Médica Pinareña, 2020
Introduction: the reverse transcriptase polymerase chain reaction is a highly precise technique in the detection and amplification of genetic material, and therefore in the detection of viruses.
José Francisco Cancino-Mesa   +2 more
doaj   +2 more sources

SARS-CoV-2 RNA detection in cerebrospinal fluid: Presentation of two cases and review of literature

open access: yesBrain, Behavior, & Immunity - Health, 2021
Neurological manifestations of SARS-CoV-2 infection are multiple and heterogeneous. However, confirmation of nervous system impairment by viral RNA detection in cerebrospinal fluid (CSF) is uncommon.
María Belén Luis   +3 more
doaj   +1 more source

Pre-B-cell acute lymphoblastic leukemia with bulk extramedullary disease and chromosome 22 (EWSR1) rearrangement masquerading as Ewing sarcoma [PDF]

open access: yes, 2010
We report a 2-year-old female with a subcutaneous tumor who was initially misdiagnosed as suffering from Ewing sarcoma with a positive EWSR1 rearrangement and EWS/FLI1 transcript.
Jakovljević, Gordana   +6 more
core   +1 more source

HIV-1 reverse transcriptase mutations that confer decreased in vitro susceptibility to anti-RT DNA aptamer RT1t49 confer cross resistance to other anti-RT aptamers but not to standard RT inhibitors [PDF]

open access: yes, 2005
RNA and DNA aptamers specific for HIV-1 reverse transcriptase (RT) can inhibit reverse transcription in vitro. RNA aptamers have been shown to potently block HIV-1 replication in culture.
Fisher, Timothy S   +2 more
core   +3 more sources

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