Displaying publications 41 - 43 of 43 in total

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  1. Application of PCR-based serogrouping of selected Salmonella serotypes in Malaysia
    Lim BK, Thong KL
    J Infect Dev Ctries, 2009 Jul 01;3(6):420-8.
    PMID: 19762954
    BACKGROUND: Differentiation of Salmonella enterica into its serogroups is important for epidemiological study. The objective of the study was to apply a multiplex PCR targeting serogroups A, B, C1, D, E and Vi-positive strains of Salmonella enterica commonly found in Malaysia. A separate H-typing multiplex PCR which identified flagellar antigen "a", "b" or "d" was also optimized to confirm clinical serotypes, S. Paratyphi A and S. Typhi.

    METHODOLOGY: Sixty-seven laboratory Salmonella enterica strains were tested. Six sets of primers targeting defined regions of the O antigen synthesis genes (rfb gene cluster) and Vi antigen gene (viaB) were selected and combined into a multiplex PCR for O-grouping. Four primers (H-for, Ha-rev, Hb-rev and Hd-rev) were used in the second step multiplex PCR for H-typing. The optimized mPCR assays were further evaluated with 58 blind-coded Salmonella strains.

    RESULTS: The multiplex PCR results obtained showed 100% concordance to the conventionally typed serogroups. Validation with 58 blind coded Salmonella strains yield 100% accuracy and specificity.

    CONCLUSION: Based on this study, PCR serogrouping proved to be a rapid, alternative method for further differentiation of Salmonella enterica.

  2. The masquerades of female pelvic tuberculosis: case reports and review of literature on clinical presentations and diagnosis
    Chow TW, Lim BK, Vallipuram S
    J Obstet Gynaecol Res, 2002 Aug;28(4):203-10.
    PMID: 12452262
    In this review, tuberculosis of the genital tract was diagnosed retrospectively in 11 females over 15 years. The presentations of nine cases are described. Seven of the nine cases presented with ascites, vague abdominal distension, weight loss and were misdiagnosed as ovarian carcinoma. Eight women had no relevant past history. A review on clinical presentations and diagnosis of pelvic tuberculosis is presented. We conclude that although the incidence of tuberculosis is uncommon in developed countries, its prevalence appears to be increasing worldwide. Therefore, clinicians should consider tuberculosis as a differential diagnosis when encountering clinical presentations of pelvic mass and ascites.
  3. Significant resolution of tuberculous pleural effusion on chemotherapy alone
    Loh LC, Lim BK, Wan Yusuf S
    J R Coll Physicians Edinb, 2010 Jun;40(2):100-4.
    PMID: 21125048 DOI: 10.4997/JRCPE.2010.202
    As a standard, significant pleural effusion, whether tuberculous (TB) or not, requires therapeutic thoracocentesis. We tested the hypothesis that standard anti-TB chemotherapy alone can resolve significant pleural effusion.
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