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ArticleIranian journal of public health2014

Heavy metal bioabsorption capacity of intestinal helminths in urban rats.

Salma Teimoori, Aliakbar Sabour Yaraghi, Mahsa Sadat Makki, Farideh Shahbazi, Shahrokh Nazmara, Mohhamad Bagher Rokni, Alireza Mesdaghinia, Abdoreza Salahi Moghaddam, Mostafa Hosseini, Arash Rakhshanpour and 1 more

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Article in Iranian journal of public health, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
0.7field-weighted citation impact, top 29% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
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

11 authors at 3 institutions in 1 country.

Salma Teimoori1. WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Tropical Disease Research Laboratory, Department of Pathology, Faculty of Medicine, Khon Kaen University , Khon Kaen 40002, Thailand ; 2. Dept. of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences , Tehran, Iran.
Aliakbar Sabour Yaraghi3. Dept. of Nutrition and Biochemistry, School of Public Health , Tehran, Iran.
Mahsa Sadat Makki2. Dept. of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences , Tehran, Iran.
Farideh Shahbazi2. Dept. of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences , Tehran, Iran.
Shahrokh Nazmara4. Dept. of Environmental Health Engineering, School of Public Health and Institute of Public Health Research, Tehran University of Medical Sciences , Tehran, Iran.
Mohhamad Bagher Rokni2. Dept. of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences , Tehran, Iran.
Alireza Mesdaghinia4. Dept. of Environmental Health Engineering, School of Public Health and Institute of Public Health Research, Tehran University of Medical Sciences , Tehran, Iran.
Abdoreza Salahi Moghaddam5. Dept. of Pathobiology, Bandar Abbas Faculty of Medicine, Hormozgan University of Medical Sciences (HUMS) , Iran.
Mostafa Hosseini6. Dept. of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical sciences , Tehran, Iran.
Arash Rakhshanpour2. Dept. of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences , Tehran, Iran.
Gholamreza Mowlavi2. Dept. of Medical Parasitology and Mycology, School of Public Health, Tehran University of Medical Sciences , Tehran, Iran.
Tehran University of Medical Sciences · IRHormozgan University of Medical Sciences · IRUniversity of Tehran · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe aim of the present study was to evaluate the capability of helminths to absorb heavy metals in comparison with that of the host tissues.

methodsWe compared the concentration of cadmium (Cd) and chromium (Cr) in urban rats and in their harboring helminthes -Moniliformis moniliformis, Hymenolepis diminuta and larval stage of Taenia taenaeiformis (Cysticercus fasciolaris). The heavy metal absorption was evaluated in 1g wet weight of parasites and tissues digested in nitric acid, using Inductivity Coupled Plasma (ICP_OES).

resultsA higher concentration of heavy metals was revealed in the helminths than in the host tissues. Bioconcentration factor (BF= C in parasite/C in tissue) for both Cd and Cr absorption was more than 10-fold higher in M. moniliformis than in the three compared host tissues. The BF of Cd in M. moniliformis compared to the liver, kidney and muscle of the host was 9.16, 14.14 and 17.09, respectively. BF in Cr in the same parasite and the same host tissues ranged from 10.67, 7.06 and 4.6. High level of absorption in H. diminuta was significantly likewise; the individual BF of Cd and Cr in H. diminuta compared to the liver, kidney and muscle of the hosts was 4.95, 5.94 and 4.67 vs. 2.67, 11.56 and 5.59. The mean concentration of Cd and Cr in C. fasciolaris was also significantly higher than that in the rat livers (P<0.007 and P<0.004, respectively).

conclusionThis study claims that parasites of terrestrial animals exposed to heavy metals can be more accurate indicators than the host tissues as new environmental monitoring agents.

Indexed as

BioindicatorsHeavy metalsHelminthsMoniliformis moniliformis

Identifiers

PMID25988090
PMCPMC4419168
OpenAlexW2162534439

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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.