Evidence map›Paper›PMID 27086943›Full record

ArticleEpidemiology and infection2016

Presence of Balamuthia mandrillaris in hot springs from Mazandaran province, northern Iran.

A R Latifi, M Niyyati, J Lorenzo-Morales, A Haghighi, S J Seyyed Tabaei, Z Lasjerdi

Abstract read
In one paragraph

Article in Epidemiology and infection, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 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

18 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Article
  4. The first reported case ofFrontiers in medicine · 2026
    Article
  5. Article
  6. Article
  7. Article
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  9. A case report ofHeliyon · 2024
    Article
  10. Review
  11. Review
  12. Emerging microbes & infections · 2020
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Free-living amoebae in the water resources of Iran: a systematic review.Journal of parasitic diseases : official organ of the Indian Society for Parasitology · 2017
    Review
  18. 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

6 authors.

A R LatifiResearch Centre for Cellular and Molecular Biology, Shahid Beheshti University of Medical Sciences,Tehran,Iran.
M NiyyatiResearch Centre for Cellular and Molecular Biology, Shahid Beheshti University of Medical Sciences,Tehran,Iran.
J Lorenzo-MoralesUniversity Institute of Tropical Diseases and Public Health of the Canary Islands, University of La Laguna,Tenerife,Canary Islands,Spain.
A HaghighiDepartment of Medical Parasitology and Mycology,Faculty of Medicine,Shahid Beheshti University of Medical Sciences,Tehran,Iran.
S J Seyyed TabaeiDepartment of Medical Parasitology and Mycology,Faculty of Medicine,Shahid Beheshti University of Medical Sciences,Tehran,Iran.
Z LasjerdiDepartment of Medical Parasitology and Mycology,Faculty of Medicine,Shahid Beheshti University of Medical Sciences,Tehran,Iran.

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 cutaneous lesions and Balamuthia amoebic encephalitis. The biology and environmental distribution of B. mandrillaris is still poorly understood and isolation of this pathogen from the environment is a rare event. Previous studies have reported that the presence of B. mandrillaris in the environment in Iran may be common. However, no clinical cases have been reported so far in this country. In the present study, a survey was conducted in order to evaluate the presence of B. mandrillaris in hot-spring samples of northern Iran. A total of 66 water samples were analysed using morphological and molecular tools. Positive samples by microscopy were confirmed by performing PCR amplification of the 16S rRNA gene of B. mandrillaris. Sequencing of the positive amplicons was also performed to confirm morphological data. Two of the 66 collected water samples were positive for B. mandrillaris after morphological and molecular identification. Interestingly, both positive hot springs had low pH values and temperatures ranging from 32 °C to 42 °C. Many locals and tourists use both hot springs due to their medicinal properties and thus contact with water bodies containing the organism increases the likelihood of infection. To the best of our knowledge, this is the first report on the isolation of B. mandrillaris from hot-spring sources related to human activity. Therefore, B. mandrillaris should be considered as a possible causative agent if cases of encephalitis are suspected following immersion in hot springs in addition to Acanthamoeba and Naegleria.

Indexed as

Balamuthia mandrillarisHot SpringsIranPolymerase Chain ReactionRNA, BacterialRNA, Ribosomal, 16SSequence Analysis, DNARNA, BacterialRNA, Ribosomal, 16SBalamuthia mandrillarishot springIran

Identifiers

PMID27086943
PMCPMC9150520

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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.