Evaluation of Molecular Assays for Diagnosis of Amoebic Liver Abscess in India with Bayesian Latent Class Analysis

Sitara Swarna Rao Ajjampur The Wellcome Trust Research Laboratory, Division of Gastrointestinal Sciences, Christian Medical College, Vellore, India;

Search for other papers by Sitara Swarna Rao Ajjampur in
Current site
Google Scholar
PubMed
Close
,
Sanket Mankad Department of Infectious Diseases, Christian Medical College, Vellore, India;

Search for other papers by Sanket Mankad in
Current site
Google Scholar
PubMed
Close
,
Malathi Manuel The Wellcome Trust Research Laboratory, Division of Gastrointestinal Sciences, Christian Medical College, Vellore, India;

Search for other papers by Malathi Manuel in
Current site
Google Scholar
PubMed
Close
,
Renita Ruth The Wellcome Trust Research Laboratory, Division of Gastrointestinal Sciences, Christian Medical College, Vellore, India;

Search for other papers by Renita Ruth in
Current site
Google Scholar
PubMed
Close
,
Ashok D. Prabakaran The Wellcome Trust Research Laboratory, Division of Gastrointestinal Sciences, Christian Medical College, Vellore, India;

Search for other papers by Ashok D. Prabakaran in
Current site
Google Scholar
PubMed
Close
,
Venkateshprabhu Janagaraj The Wellcome Trust Research Laboratory, Division of Gastrointestinal Sciences, Christian Medical College, Vellore, India;

Search for other papers by Venkateshprabhu Janagaraj in
Current site
Google Scholar
PubMed
Close
,
Thambu David Department of Medicine, Christian Medical College, Vellore, India;

Search for other papers by Thambu David in
Current site
Google Scholar
PubMed
Close
,
Philip Joseph Department of Hepatopancreatico Biliary Surgery, Christian Medical College, Vellore, India

Search for other papers by Philip Joseph in
Current site
Google Scholar
PubMed
Close
, and
Priscilla Rupali Department of Infectious Diseases, Christian Medical College, Vellore, India;

Search for other papers by Priscilla Rupali in
Current site
Google Scholar
PubMed
Close
Restricted access

ABSTRACT.

Amoebic liver abscess (ALA) is the most common extra-intestinal complication of Entamoeba histolytica, accounting for 50,000 deaths annually, and is endemic in South Asia. Diagnosis based on microscopic examination is insensitive, and serological assays are not discerning of current infections in endemic settings with high exposure. For a rapid and confirmatory laboratory diagnosis of ALA, the performance of a polymerase chain reaction (PCR), quantitative real time PCR (qPCR), digital droplet PCR (ddPCR), and a loop-mediated isothermal amplification (LAMP) assay that detects E. histolytica DNA in liver abscess pus, and a lectin antigen detection ELISA were evaluated against clinical diagnosis (based on predefined criteria) as the gold standard. Owing to the lack of a laboratory gold standard, a Bayesian latent class analysis approach was also used to determine sensitivity and specificity of these assays. In the latent class analysis, qPCR and ddPCR showed the highest sensitivity (98% and 98.1%) and specificity (both 96.6%), and although clinical diagnosis had a comparable sensitivity to qPCR and ddPCR (95.2%), poorer specificity (64.3%) was seen. Kappa agreement analysis showed that qPCR and ddPCR had a perfect agreement of 1 followed by an agreement of 0.76 (95% CI: 0.64–0.88) with PCR. Considering the performance characteristics and relative ease of setting up qPCR as well as the wide availability of qPCR equipment needed, this would be the most optimal assay for rapid, confirmatory, molecular diagnosis of ALA in the tertiary care laboratory setting in India, whereas further optimization of LAMP or antibody-based detection is required for use at smaller or secondary hospitals.

    • Supplemental Materials (PDF 186.51 KB)

Author Notes

Financial support: This study was supported by an institutional grant (Christian Medical College, Vellore) to S. Mankad. Additional costs of laboratory testing were supported with institutional funds by S. S. R. Ajjampur.

Disclosure: The Institutional Review Board of Christian Medical College, Vellore (IRB Min no.7491, dated 28.04.2011) reviewed and approved the study. Written informed consent was obtained from all study subjects prior to enrollment.

Current contact information: Sitara Swarna Rao Ajjampur, Malathi Manuel, Renita Ruth, Ashok D Prabakaran, and Venkateshprabhu Janagaraj, The Wellcome Trust Research Laboratory, Division of Gastrointestinal Sciences, Christian Medical College, Vellore, India, E-mails: sitararao@cmcvellore.ac.in, malathimanuel25@gmail.com, renita@cmcvellore.ac.in, ashokdani@gmail.com, and venkateshjanagaraj@gmail.com. Sanket Mankad and Priscilla Rupali, Department of Infectious Diseases, Christian Medical College, Vellore, India, E-mails: drsanketmankad@gmail.com and prisci@cmcvellore.ac.in. Thambu David, Department of Medicine, Christian Medical College, Vellore, Tamil Nadu, India, E-mail: thambu@cmcvellore.ac.in. Philip Joseph, Department of Hepatopancreatico Biliary Surgery, Christian Medical College, Vellore, Tamil Nadu, India, E-mail: pj1982@cmcvellore.ac.in.

Address correspondence to Sitara Swarna Rao Ajjampur, The Wellcome Trust Research Laboratory, Division of Gastrointestinal Sciences, Christian Medical College, Vellore 632004, Tamil Nadu, India, E-mail: sitararao@cmcvellore.ac.in or Priscilla Rupali, Department of Infectious Diseases, Christian Medical College, Vellore, Tamil Nadu, India. E-mail: prisci@cmcvellore.ac.in
  • 1.

    Kumanan T , Sujanitha V , Sreeharan N , 2020. Amoebic liver abscess: A neglected tropical disease. Lancet Infect Dis 20: 160162.

  • 2.

    Khim G , Em S , Mo S , Townell N , 2019. Liver abscess: Diagnostic and management issues found in the low resource setting. Br Med Bull 132: 4552.

  • 3.

    Blessmann J , Van Linh P , Nu PAT , Thi HD , Muller-Myhsok B , Buss H , Tannich E , 2002. Epidemiology of amebiasis in a region of high incidence of amebic liver abscess in central Vietnam. Am J Trop Med Hyg 66: 578583.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 4.

    Tharmaratnam T et al., 2020. Entamoeba histolytica and amoebic liver abscess in northern Sri Lanka: A public health problem. Trop Med Health 48: 2.

  • 5.

    Neill L , Edwards F , Collin SM , Harrington D , Wakerley D , Rao GG , McGregor AC , 2019. Clinical characteristics and treatment outcomes in a cohort of patients with pyogenic and amoebic liver abscess. BMC Infect Dis 19: 490.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 6.

    Singh A , Banerjee T , Kumar R , Shukla SK , 2019. Prevalence of cases of amebic liver abscess in a tertiary care centre in India: A study on risk factors, associated microflora and strain variation of Entamoeba histolytica. PLoS One 14: e0214880.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 7.

    Singh A , Banerjee T , Shukla SK , 2021. Factors associated with high rates of recurrence of amebic liver abscess (ALA) in north India. Am J Trop Med Hyg 104: 13831387.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 8.

    Fotedar R , Stark D , Beebe N , Marriott D , Ellis J , Harkness J , 2007. Laboratory diagnostic techniques for Entamoeba species. Clin Microbiol Rev 20: 511532.

  • 9.

    Haque R , Mollah NU , Ali IK , Alam K , Eubanks A , Lyerly D , Petri WA , 2000. Diagnosis of amebic liver abscess and intestinal infection with the TechLab Entamoeba histolytica II antigen detection and antibody tests. J Clin Microbiol 38: 32353323.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 10.

    Dhanalakshmi S , Meenachi C , Parija SC , 2016. Indirect haemagglutination test in comparison with ELISA for detection of antibodies against invasive amoebiasis. J Clin Diagn Res 10: DC05DC08.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 11.

    Noordin R , Yunus MH , Saidin S , Mohamed Z , Fuentes Corripio I , Rubio JM , Golkar M , Hisam S , Lee R , Mahmud R , 2020. Multi-laboratory evaluation of a lateral flow rapid test for detection of amebic liver abscess. Am J Trop Med Hyg 103: 22332238.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 12.

    Saidin S , Othman N , Noordin R , 2019. Update on laboratory diagnosis of amoebiasis. Eur J Clin Microbiol Infect Dis 38: 1538.

  • 13.

    Khan U , Mirdha BR , Samantaray JC , Sharma MP , 2006. Detection of Entamoeba histolytica using polymerase chain reaction in pus samples from amebic liver abscess. Indian J Gastroenterol 25: 5557.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 14.

    Dinoop KP , Parija SC , Mandal J , Swaminathan RP , Narayanan P , 2016. Comparison of nested-multiplex, Taqman & SYBR Green real-time PCR in diagnosis of amoebic liver abscess in a tertiary health care institute in India. Indian J Med Res 143: 4956.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 15.

    Singh P , Mirdha BR , Ahuja V , Singh S , 2013. Loop-mediated isothermal amplification (LAMP) assay for rapid detection of Entamoeba histolytica in amoebic liver abscess. World J Microbiol Biotechnol 29: 2732.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 16.

    Handa D , Gupta M , Lehl SS , Gupta A , Singh R , 2021. Utility of loop-mediated isothermal amplification as a point-of-care test in diagnosis of amoebic liver abscess. Trop Doct 51: 488491.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 17.

    Ghelfenstein-Ferreira T , Gits-Muselli M , Dellière S , Denis B , Guigue N , Hamane S , Alanio A , Bretagne S , 2020. Entamoeba histolytica DNA detection in serum from patients with suspected amoebic liver abscess. J Clin Microbiol 58: e01153e20.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 18.

    Liang S-Y et al., 2009. Development of loop-mediated isothermal amplification assay for detection of Entamoeba histolytica. J Clin Microbiol 47: 18921895.

  • 19.

    Verweij JJ , Blangé RA , Templeton K , Schinkel J , Brienen EAT , van Rooyen MAA , van Lieshout L , Polderman AM , 2004. Simultaneous detection of Entamoeba histolytica, Giardia lamblia, and Cryptosporidium parvum in fecal samples by using multiplex real-time PCR. J Clin Microbiol 42: 12201223.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 20.

    Kiselinova M , Pasternak AO , De Spiegelaere W , Vogelaers D , Berkhout B , Vandekerckhove L , 2014. Comparison of droplet digital PCR and seminested real-time PCR for quantification of cell-associated HIV-1 RNA. PLoS One 9: e85999.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 21.

    Srisutham S , Saralamba N , Malleret B , Rénia L , Dondorp AM , Imwong M , 2017. Four human Plasmodium species quantification using droplet digital PCR. PLoS One 12: e0175771.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 22.

    Li Y , Lord-Bessen J , Shiyko M , Loeb R , 2018. Bayesian latent class analysis tutorial. Multivariate Behav Res 53: 430451.

  • 23.

    McHugh ML , 2012. Interrater reliability: The kappa statistic. Biochem Med (Zagreb) 22: 276282.

  • 24.

    Chaudhary S , Noor MT , Jain S , Kumar R , Thakur BS , 2016. Amoebic liver abscess: A report from central India. Trop Doct 46: 1215.

  • 25.

    Sharma N , Sharma A , Varma S , Lal A , Singh V , 2010. Amoebic liver abscess in the medical emergency of a north Indian hospital. BMC Res Notes 3: 21.

  • 26.

    Amarapurkar DN , Patel N , Amarapurkar AD , 2003. Amoebic liver abscess. J Hepatol 39: 291292.

  • 27.

    Jackson-Akers JY , Prakash V , Oliver TI , 2022. Amebic liver abscess. StatPearls. Treasure Island, FL: StatPearls Publishing.

  • 28.

    Ghosh S , Sharma S , Gadpayle AK , Gupta HK , Mahajan RK , Sahoo R , Kumar N , 2014. Clinical, laboratory, and management profile in patients of liver abscess from northern India. J Trop Med 2014: 142382.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 29.

    Stanley SL , 2003. Amoebiasis. Lancet 361: 10251034.

  • 30.

    Iamrod K et al., 2021. Development and efficacy of droplet digital PCR for detection of Strongyloides stercoralis in stool. Am J Trop Med Hyg 106: 312319.

  • 31.

    Weerakoon KG , Gordon CA , Williams GM , Cai P , Gobert GN , Olveda RM , Ross AG , Olveda DU , McManus DP , 2017. Droplet digital PCR diagnosis of human schistosomiasis: Parasite cell-free DNA detection in diverse clinical samples. J Infect Dis 216: 16111622.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 32.

    García-Bernalt Diego J , Fernández-Soto P , Muro A , 2021. LAMP in neglected tropical diseases: A focus on parasites. Diagnostics (Basel) 11: 521.

  • 33.

    Gadkar VJ , Goldfarb DM , Gantt S , Tilley PAG , 2018. Real-time detection and monitoring of loop mediated amplification (LAMP) reaction using self-quenching and de-quenching fluorogenic probes. Sci Rep 8: 5548.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 34.

    Gong L , Tang F , Liu E , Liu X , Xu H , Wang Y , Song Y , Liang J , 2021. Development of a loop-mediated isothermal amplification assay combined with a nanoparticle-based lateral flow biosensor for rapid detection of plasmid-mediated colistin resistance gene mcr-1. PLoS One 16: e0249582.

    • PubMed
    • Search Google Scholar
    • Export Citation
  • 35.

    Parija SC , Khairnar K , 2007. Detection of excretory Entamoeba histolytica DNA in the urine, and detection of E. histolytica DNA and lectin antigen in the liver abscess pus for the diagnosis of amoebic liver abscess. BMC Microbiol 7: 41.

    • PubMed
    • Search Google Scholar
    • Export Citation
Past two years Past Year Past 30 Days
Abstract Views 1968 1968 58
Full Text Views 89 89 25
PDF Downloads 80 80 14
 

 

 

 
 
Affiliate Membership Banner
 
 
Research for Health Information Banner
 
 
CLOCKSS
 
 
 
Society Publishers Coalition Banner
Save