Assessing Minimal Concentration of Toxoplasma Gondii B1 and P30 Gen Which Are Still Detectable By Polymerase Reaction Chain

Toxoplasma gondii is an intracellular protozoan which causes toxoplasmosis. A serological test (ELISA) for detecting the presence of IgG and IgM antibodies against T.gondii is usually performed nowadays, however this serological test is not adequate. Therefore an accurate laboratory test is needed f...

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Main Authors: Lisawati Susanto, Taniawati Supali, Srisasi Gandahusada
Format: Article
Language:English
Published: Universitas Indonesia 2010-10-01
Series:Makara Journal of Health Research
Subjects:
Online Access:http://journal.ui.ac.id/index.php/health/article/view/80
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author Lisawati Susanto
Taniawati Supali
Srisasi Gandahusada
author_facet Lisawati Susanto
Taniawati Supali
Srisasi Gandahusada
author_sort Lisawati Susanto
collection DOAJ
description Toxoplasma gondii is an intracellular protozoan which causes toxoplasmosis. A serological test (ELISA) for detecting the presence of IgG and IgM antibodies against T.gondii is usually performed nowadays, however this serological test is not adequate. Therefore an accurate laboratory test is needed for diagnosing acute toxoplasmosis, and in this case the polymerase chain reaction (PCR) is the method of choice. The aim of this study is to assess the minimal concentration of the DNA of T.gondii which still can be detected by the PCR using B1 and P30 genes as targets. The PCR against B1 gene as target was performed by using the method described by Chang and Ho. Two methods described by Weiss et al and Chang Ho were used against P30 gene as target. The B1 gene primers consisted of oligo 1 :5' GGAACTGCATCCGTTCAGA G3 and oligo 2 : 5'TCTTTAAAGCGTTCGTGGTC3, whereas the P30 gene primers consisted of oligo 1 : 5'CACACGGTTGTATGTCGGTTTCG CT3 and oligo 2 : 5'TCAAGG AGCTCAAT GTTACAGCCT3. It was shown that no specific bands were observed in the PCR with P30 gene as target using the method by Weiss et al. With the method Chang Ho the electrophoresis did not show any band when 30, 35, 40 and 45 cycles of PCR were used however, by using 50 cycles a specific band was observed. It was concluded that the assay using B1 gene as target was more sensitive than the one using P30 gene as target.
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spelling doaj.art-5d08feb287f14cb18016ea4df0ac40372023-09-02T06:53:19ZengUniversitas IndonesiaMakara Journal of Health Research2356-36642356-36562010-10-0162646910.7454/msk.v6i2.8078Assessing Minimal Concentration of Toxoplasma Gondii B1 and P30 Gen Which Are Still Detectable By Polymerase Reaction ChainLisawati Susanto0Taniawati Supali1Srisasi Gandahusada2Department of Parasitology, Faculty of Medicine, Universitas Indonesia, Jl. Salemba Raya No. 6, Jakarta 10430Department of Parasitology, Faculty of Medicine, Universitas Indonesia, Jl. Salemba Raya No. 6, Jakarta 10430Department of Parasitology, Faculty of Medicine, Universitas Indonesia, Jl. Salemba Raya No. 6, Jakarta 10430Toxoplasma gondii is an intracellular protozoan which causes toxoplasmosis. A serological test (ELISA) for detecting the presence of IgG and IgM antibodies against T.gondii is usually performed nowadays, however this serological test is not adequate. Therefore an accurate laboratory test is needed for diagnosing acute toxoplasmosis, and in this case the polymerase chain reaction (PCR) is the method of choice. The aim of this study is to assess the minimal concentration of the DNA of T.gondii which still can be detected by the PCR using B1 and P30 genes as targets. The PCR against B1 gene as target was performed by using the method described by Chang and Ho. Two methods described by Weiss et al and Chang Ho were used against P30 gene as target. The B1 gene primers consisted of oligo 1 :5' GGAACTGCATCCGTTCAGA G3 and oligo 2 : 5'TCTTTAAAGCGTTCGTGGTC3, whereas the P30 gene primers consisted of oligo 1 : 5'CACACGGTTGTATGTCGGTTTCG CT3 and oligo 2 : 5'TCAAGG AGCTCAAT GTTACAGCCT3. It was shown that no specific bands were observed in the PCR with P30 gene as target using the method by Weiss et al. With the method Chang Ho the electrophoresis did not show any band when 30, 35, 40 and 45 cycles of PCR were used however, by using 50 cycles a specific band was observed. It was concluded that the assay using B1 gene as target was more sensitive than the one using P30 gene as target.http://journal.ui.ac.id/index.php/health/article/view/80Toxoplasma gondiiB1 geneP30 genePCR
spellingShingle Lisawati Susanto
Taniawati Supali
Srisasi Gandahusada
Assessing Minimal Concentration of Toxoplasma Gondii B1 and P30 Gen Which Are Still Detectable By Polymerase Reaction Chain
Makara Journal of Health Research
Toxoplasma gondii
B1 gene
P30 gene
PCR
title Assessing Minimal Concentration of Toxoplasma Gondii B1 and P30 Gen Which Are Still Detectable By Polymerase Reaction Chain
title_full Assessing Minimal Concentration of Toxoplasma Gondii B1 and P30 Gen Which Are Still Detectable By Polymerase Reaction Chain
title_fullStr Assessing Minimal Concentration of Toxoplasma Gondii B1 and P30 Gen Which Are Still Detectable By Polymerase Reaction Chain
title_full_unstemmed Assessing Minimal Concentration of Toxoplasma Gondii B1 and P30 Gen Which Are Still Detectable By Polymerase Reaction Chain
title_short Assessing Minimal Concentration of Toxoplasma Gondii B1 and P30 Gen Which Are Still Detectable By Polymerase Reaction Chain
title_sort assessing minimal concentration of toxoplasma gondii b1 and p30 gen which are still detectable by polymerase reaction chain
topic Toxoplasma gondii
B1 gene
P30 gene
PCR
url http://journal.ui.ac.id/index.php/health/article/view/80
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AT srisasigandahusada assessingminimalconcentrationoftoxoplasmagondiib1andp30genwhicharestilldetectablebypolymerasereactionchain