Listeria monocytogenes MerR-Like Regulator NmlRlm: Its Transcriptome and Role in Stress Response.

NmlR, a negative transcription regulator in the MerR family, is involved in oxidative and nitrosative stress response in Neisseria gonorrhoeae and Haemophilus influenzae. In this study, the objective was to characterize the role and the regulon of NmlR in the foodborne Listeria monocytogenes. An L.

Detection of the oomycete Pythium insidiosum by real-time PCR targeting the gene coding for exo-1,3-β-glucanase.

Pythiosis is a life-threatening infectious disease caused by Pythium insidiosum. Early and accurate diagnosis is the key to prompt treatment and an improved prognosis for patients with pythiosis. An alternative to microbiological and immunological approaches for facilitating diagnosis of pythiosis is the PCR-based assay.

Pharmacogenetic markers of CYP2B6 associated with efavirenz plasma concentrations in HIV-1 infected Thai adults.

Aims: To investigate the frequency of CYP2B6 polymorphisms and the influence of haplotype structure on plasma efavirenz concentrations in Thai adults with HIV-1 infection.

Methods: Genotyping of nine single nucleotide polymorphisms (SNPs, c.64C>T, c.

An integrated bioinformatics approach to the characterization of influenza A/H5N1 viral sequences by microarray data: Implication for monitoring H5N1 emerging strains and designing appropriate influenza vaccines.

In order to characterize A/H5N1 viral sequences, a bioinformatics approach accurately identified viral sequences from discovery of a sequence signature, which provided enough distinctive information for sequence identification. Eight highly pathogenic H5N1 viral isolations were collected from different areas of Thailand between 2003 and 2006, and were used for analysis of H5N1 genotypic testing with a semiconductor-based oligonucleotide microarray. All H5N1 samples and H1N1, H4N8 negative controls were correctly subtyped.

Qualitative detection of avian influenza A (H5N1) viruses: a comparative evaluation of four real-time nucleic acid amplification methods.

The aim of this study was to determine the performance of real-time amplification based methods - NASBA, TaqMan, RT-FRET, and RT-PCR LUXtrade mark formats - for the detection of influenza A (H5N1) virus RNA. In an analysis of 54 samples obtained from a range of animal species in Thailand during the period 2003-2006, results showed that the NASBA (H5=98.2%, N1=96.

Quantitative detection of human immunodeficiency virus type 1 (HIV-1) viral load by real-time RT-PCR assay using self-quenched fluorogenic primers.

HIV-1 viral load is a basic marker to evaluate the severity of HIV-1 related diseases and to monitor the effectiveness of treatment. A method based on real-time RT-PCR technology has been developed to quantify HIV-1 RNA using self-quenched fluorogenic primers known as LUX primers. They were used in this study to recognize a low variable gag region of subtype E and B consensus sequences.

Detection of JC virus infection in progressive multifocal leukoencephalopathy: the first documented case in Thailand.

Progressive Multifocal Leukoencephalopathy (PML) is a demyelinating brain disease caused by human polyoma JC virus (JCV). This disease is an important cause of morbidity and mortality in AIDS patients. Definite diagnosis currently requires a brain biopsy.