Evidence map›Paper›PMID 24781021›Full record

ArticleParasitology research2014

The isolation of Balamuthia mandrillaris from environmental sources from Peru.

Alfonso Martín Cabello-Vílchez, María Reyes-Batlle, Esmelda Montalbán-Sandoval, Carmen Ma Martín-Navarro, Atteneri López-Arencibia, Rafaela Elias-Letts, Humberto Guerra, Eduardo Gotuzzo, Enrique Martínez-Carretero, José E Piñero and 3 more

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Article in Parasitology research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.6field-weighted citation impact, top 12% 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

21 citing papers in PubMed, 35 citations in OpenAlex.

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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

13 authors at 4 institutions in 4 countries.

Alfonso Martín Cabello-VílchezUniversity Institute of Tropical Diseases and Public Health of the Canary Islands, University of La Laguna, Avenida Astrofísico Francisco Sánchez SN, 38203, La Laguna, Tenerife, Canary Islands, Spain.
María Reyes-Batlle
Esmelda Montalbán-Sandoval
Carmen Ma Martín-Navarro
Atteneri López-Arencibia
Rafaela Elias-Letts
Humberto Guerra
Eduardo Gotuzzo
Enrique Martínez-Carretero
José E Piñero
Sutherland K Maciver
Basilio Valladares
Jacob Lorenzo-Morales
Universidad de La Laguna · ESUniversidad Peruana Cayetano Heredia · PEUniversity of Edinburgh · GBAsociación Civil Impacta Salud y Educación · PE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Balamuthia mandrillaris is an opportunistic free-living amoeba that has been reported to cause skin lesions and the fatal Balamuthia amoebic encephalitis (BAE) in humans and other animals. Currently, around 200 human BAE cases have been reported worldwide, although this number is considered to be underestimated. The highest number of BAE cases has been reported in the American continent, mainly in the southwest of the USA. Peru seems to be another hotspot for BAE with around 55 human cases having been identified, usually involving cutaneous infection, especially lesions in the central face area. The isolation of Balamuthia from environmental sources has been reported on only three prior occasions, twice from Californian soils and once from dust in Iran and so it seems that this amoeba is relatively rarely encountered in samples from the environment. We investigated that possibility of finding the amoebae in soil samples from different regions where clinical cases have been reported in Peru. Twenty-one samples were cultured in non-nutrient agar plates and were checked for the presence of B. mandrillaris-like trophozoites and/or cysts. Those samples that were positive for these amoebae by microscopic criteria were then confirmed by PCR amplification and DNA sequencing of the mitochondrial 16S rDNA gene of B. mandrillaris. We have detected the presence of B. mandrillaris in four samples collected in the regions of Piura (3) and Lima (1) where infection cases have been previously reported. We hypothesize that B. mandrillaris is present in Peru in soil and dust which therefore constitutes a source of the infection for the BAE cases previously reported in this country. Further studies should be carried out in the area to confirm the generality of this finding.

Indexed as

AmebiasisAnimalsBalamuthia mandrillarisHumansPeruRNA, ProtozoanRNA, Ribosomal, 16SSequence Analysis, DNASoilRNA, ProtozoanRNA, Ribosomal, 16SSoil

Identifiers

PMID24781021
OpenAlexW2058191557

What OpenQuestion holds

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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.