Evidence map›Paper›PMID 18982056›Full record

ArticlePLoS neglected tropical diseases2008

Enumeration of Mycobacterium leprae using real-time PCR.

Richard W Truman, P Kyle Andrews, Naoko Y Robbins, Linda B Adams, James L Krahenbuhl, Thomas P Gillis

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 19% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

73 citing papers in PubMed, 1 synthesis or guideline pooled it, 136 citations in OpenAlex.

  1. Pooled it
  2. UndetectableOne health (Amsterdam, Netherlands) · 2026
    Article
  3. Assessment of Antimicrobial Resistance in M. leprae Strains From Kiribati.Tropical medicine & international health : TM & IH · 2026
    Article
  4. Article
  5. Review
  6. Observational
  7. Tuberculosis: An Ongoing Global Threat.Advances in experimental medicine and biology · 2026
    Review
  8. Observational
  9. Article
  10. Article
  11. Molecular and Serological Surveillance forAnimals : an open access journal from MDPI · 2024
    Article
  12. Article
  13. qPCR detection ofFrontiers in molecular biosciences · 2024
    Article
  14. Challenges and advances in serological and molecular tests to aid leprosy diagnosis.Experimental biology and medicine (Maywood, N.J.) · 2023
    Review
  15. Article
  16. Article
  17. Genotyping ofIranian journal of microbiology · 2023
    Article
  18. Article
  19. Article
  20. Article

13 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Richard W TrumanDepartment of Health and Human Services, Health Resources Services Administration, Bureau of Primary Health Care, National Hansen's Disease Programs, Baton Rouge, Louisiana, USA.
P Kyle Andrews
Naoko Y Robbins
Linda B Adams
James L Krahenbuhl
Thomas P Gillis
Health Resources and Services Administration · USNational Hansen's Disease Program · US

Funding

DEVELOP AND EVALUATE NEW LEPROSY AND TB VACCINESR01AI045725 · NIAID · NATIONAL HANSEN'S DISEASE PROGRAM · PI GILLIS, THOMAS P · 2000 to 2003
$461k
IMMUNE FUNCTION AND BIODEFENSE IN CHILDREN.ELDERLY AND IMMUNOCOMPROMIS-266050027N01AI050027 · NIAID · OREGON HEALTH SCIENCE UNIVER · PI NIKOLICH-ZUGICH, JANKO · 2006 to 2006
–
NIAID NIH HHS AI45725NIAID NIH HHS N01 AI050027NIAID NIH HHS R01 AI045725NIAID NIH HHS Y01 AI002646
6 · The paper itself

Abstract

Mycobacterium leprae is not cultivable in axenic media, and direct microscopic enumeration of the bacilli is complex, labor intensive, and suffers from limited sensitivity and specificity. We have developed a real-time PCR assay for quantifying M. leprae DNA in biological samples. Primers were identified to amplify a shared region of the multicopy repeat sequence (RLEP) specific to M. leprae and tested for sensitivity and specificity in the TaqMan format. The assay was specific for M. leprae and able to detect 10 fg of purified M. leprae DNA, or approximately 300 bacteria in infected tissues. We used the RLEP TaqMan PCR to assess the short and long-term growth results of M. leprae in foot pad tissues obtained from conventional mice, a gene knock-out mouse strain, athymic nude mice, as well as from reticuloendothelial tissues of M. leprae-infected nine-banded armadillos. We found excellent correlative results between estimates from RLEP TaqMan PCR and direct microscopic counting (combined r = 0.98). The RLEP TaqMan PCR permitted rapid analysis of batch samples with high reproducibility and is especially valuable for detection of low numbers of bacilli. Molecular enumeration is a rapid, objective and highly reproducible means to estimate the numbers of M. leprae in tissues, and application of the technique can facilitate work with this agent in many laboratories.

Indexed as

AnimalsCalibrationDNA, BacterialDNA, RibosomalEscherichia coliHindlimbMiceMice, NudeMycobacterium lepraePolymerase Chain ReactionRNA, Ribosomal, 16SStaphylococcus epidermidisStreptococcus pyogenesDNA, BacterialDNA, RibosomalRNA, Ribosomal, 16S

Identifiers

PMID18982056
PMCPMC2570796
OpenAlexW2085444158

What OpenQuestion holds

Textmetadata
LicenceCC0
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.