TITLE

Comparison of a conventional polymerase chain reaction with real-time polymerase chain reaction for the detection of neurotropic viruses in cerebrospinal fluid samples

AUTHOR(S)
Ramamurthy, M.; Alexander, M.; Aaron, S.; Kannangai, R.; Ravi, V.; Sridharan, G.; Abraham, A. M.
PUB. DATE
April 2011
SOURCE
Indian Journal of Medical Microbiology;Apr2011, Vol. 29 Issue 2, p102
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Purpose: To compare a conventional polymerase chain reaction (PCR) and real-time PCR for the detection of neurotropic DNA viruses. Materials and Methods: A total of 147 cerebrospinal fl uid (CSF) samples was collected from patients attending a tertiary care hospital in South India for a period from 2005 to 2008. All these samples were tested using a conventional multiplex/uniplex PCR and a real-time multiplex/uniplex PCR. This technique was used to detect a large number of herpes viruses responsible for central nervous system infections, including HSV-1, HSV-2, VZV, CMV and EBV and the polyoma virus JCV. Results: Overall, in the entire set of samples, the real-time PCR yielded 88 (59.9%) positives and conventional PCR had six (4.1%) positives. Conclusion: Our results suggest that the real-time PCR assay was more sensitive compared with the conventional PCR. The advantage of real-time PCR is that it can be performed much faster than conventional PCR. Real-time PCR is less time-consuming, less labour-intensive and also reduces the chance of contamination as there is no post-amplification procedure. In the entire study population, the major viruses detected using real-time PCR were EBV (34%), HSV-2 (10.8%) and VZV (6.8%).
ACCESSION #
61346943

 

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