Rapid detection of Salmonella Typhi by loop-mediated isothermal amplification (LAMP) method

被引：29

作者：

Abdullah, J. ^{[1
]}

Saffie, N. ^{[1
]}

Sjasri, F. A. R. ^{[1
]}

Husin, A. ^{[3
]}

Abdul-Rahman, Z. ^{[2
]}

Ismail, A. ^{[1
]}

Aziah, I. ^{[1
]}

Mohamed, M. ^{[1
]}

机构：

[1] Inst Res Mol Med, Kubang Kerian, Kelantan, Malaysia

[2] Univ Sains Malaysia, Sch Med Sci, Kubang Kerian, Kelantan, Malaysia

[3] Hosp Raja Perempuan Zainab II, Kota Baharu 15586, Kelantan, Malaysia

来源：

BRAZILIAN JOURNAL OF MICROBIOLOGY | 2014年 / 45卷 / 04期

关键词：

loop-mediated isothermal amplification (LAMP); Salmonella Typhi; POLYMERASE-CHAIN-REACTION; REVERSE-TRANSCRIPTION; ENTERICA; SAMPLES; FEVER; ASSAY; FOOD; PCR;

D O I：

10.1590/S1517-83822014000400032

中图分类号：

Q93 [微生物学];

学科分类号：

071005 ; 100705 ;

摘要：

An in-house loop-mediated isothermal amplification (LAMP) reaction was established and evaluated for sensitivity and specificity in detecting the presence of Salmonella Typhi (S. Typhi) isolates from Kelantan, Malaysia. Three sets of primers consisting of two outer and 4 inner were designed based on locus STBHUCCB_38510 of chaperone PapD of S. Typhi genes. The reaction was optimised using genomic DNA of S. Typhi ATCC7251 as the template. The products were visualised directly by colour changes of the reaction. Positive results were indicated by green fluorescence and negative by orange colour. The test was further evaluated for specificity, sensitivity and application on field samples. The results were compared with those obtained by gold standard culture method and Polymerase Chain Reaction (PCR). This method was highly specific and -10 times more sensitive in detecting S. Typhi compared to the optimised conventional polymerase chain reaction (PCR) method.

引用

页码：1385 / 1391

页数：7

共 20 条

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