Evidence map›Paper›PMID 21327988›Full record

ArticleParasitology research2011

Occurrence and genetic characterization of Giardia duodenalis from captive nonhuman primates by multi-locus sequence analysis.

Rafael Alberto Martínez-Díaz, José Sansano-Maestre, María Del Carmen Martínez-Herrero, Francisco Ponce-Gordo, María Teresa Gómez-Muñoz

Abstract read
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In one paragraph

Article in Parasitology research, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

20 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Epidemiology ofOne health (Amsterdam, Netherlands) · 2025
    Article
  3. Article
  4. International journal for parasitology. Parasites and wildlife · 2025
    Article
  5. Article
  6. Article
  7. International journal for parasitology. Parasites and wildlife · 2022
    Article
  8. Article
  9. Zoonotic assemblages ofJournal of parasitic diseases : official organ of the Indian Society for Parasitology · 2021
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Intestinal Parasites and the Occurrence of ZoonoticFrontiers in veterinary science · 2019
    Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Review
  20. Article
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

5 authors.

Rafael Alberto Martínez-DíazDepartamento de Medicina Preventiva, Salud Pública y Microbiología, Facultad de Medicina, Universidad Autónoma de Madrid, C/Arzobispo Morcillo S/N, 28029 Madrid, Spain. rafael.martinez@uam.es
José Sansano-Maestre
María Del Carmen Martínez-Herrero
Francisco Ponce-Gordo
María Teresa Gómez-Muñoz

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Giardia is the most common enteric protozoan that can be pathogenic to both humans and animals. Transmission can be direct through the faecal-oral route, or through ingestion of contaminated water or food. Genetic characterization of Giardia duodenalis isolates has demonstrated the existence of seven groups (assemblages A to G) which differ in their host distribution. Assemblages A and B are present in humans and other primates, dogs, cats, rodents, and other species of wild mammals, but the role of the different host animals in the epidemiology of human infection remains unclear. With this preliminary data, we can infer that nonhuman primates (NHP) might be a potential reservoir for zoonotic transmission. This research paper discusses the presence of Giardia in nonhuman primates housed in two Spanish zoological gardens (located in Valencia and Madrid). Twenty faecal samples obtained from 16 different species of NHP were studied; 70% were positives to Giardia, and genetic analyses were performed by sequencing of four genes (SSrRNA, glutamate dehydrogenase, triose phosphate isomerase, and beta-giardin). The assemblage A was the most frequent (63.4%) in the species studied. A sequence from a red ruffed lemur (corresponding to genotype AI) was obtained, and this is the first reported sequence of a gdh gene obtained from this species. The multi-locus sequence analysis was also performed on the samples positive to nested PCR belonging to assemblage B. After amplification using the GDHeF, GDHiF, and GDHiR gdh primers; AL3543, AL3546, AL3544, and AL3545 tpi primers; G7, G759, GBF, and GBR bg primers, amplicons of 432, 500, and 511 bp respectively were obtained. Amplification products were sequenced and the sequence and phylogenetic analyses showed that genotype IV like was the most frequent in the samples belonging to this assemblage.

Indexed as

Multilocus Sequence TypingAnimalsAnimals, ZooCluster AnalysisCytoskeletal ProteinsDNA, ProtozoanDNA, RibosomalFecesGenes, rRNAGiardia lambliaGiardiasisGlutamate DehydrogenaseMolecular Sequence DataPhylogenyPrimate DiseasesPrimatesCytoskeletal ProteinsDNA, ProtozoanDNA, Ribosomalgiardin protein, Giardia lambliaGlutamate DehydrogenaseProtozoan ProteinsRNA, ProtozoanRNA, Ribosomal, 18STriose-Phosphate Isomerase

Identifiers

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Registered trials

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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.