Research note Relative concentrations of heavy metals in the parasites Ascaris suum (Nematoda) and Fasciola hepatica (Digenea) and their respective porcine and bovine definitive hosts

Sures, Bernd; Jürges, Gabriele; Taraschewski, Horst

doi:10.1016/s0020-7519(98)00105-2

Cited by 40 publications

(39 citation statements)

References 16 publications

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“…Sheep were also chosen considering the fact that there are very few models for studying element concentrations in a parasite infected host under farming conditions. Only Sures et al (1998) worked with cattle (Bos primigenius f. taurus) parasitized by the digenean Fasciola hepatica, and Sures et al (2000) with the pig species (Sus scrofa f. domestica) parasitized by the archiacanthocephalan Macracanthorhynchus hirudinaceus determined the influence of these parasites on element concentrations in the host tissues. This experiment investigates the absorption of essential elements by sheep with an intestinal parasite (Moniezia expansa) affected by inorganic Cd added to water.…”

Section: Introductionmentioning

confidence: 99%

Competition for minerals (Zn, Mn, Fe, Cu) and Cd between sheep tapeworm (Moniezia expansa) and its definitive host sheep (Ovis aries)

et al. 2011

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Concentrations of various essential and toxic elements (Zn, Mn, Fe, Cu and Cd) were analysed by inductively coupled plasma optical emission spectrometry (ICP-OES) in the sheep tapeworm (Moniezia expansa) and in different tissues of its host Ovis aries. The element concentrations of the cestode parasites were compared to different organs (liver, kidney, and muscle) of sheep that were exposed to experimental amounts of Cd (0.2 g of CdCl2 added to 10 ml of distilled water and administered orally to the sheep every day for a period of 1 week). All sheep were randomly divided into four groups; the first group (Cd) contained uninfected, Cd exposed sheep, and its control (group C) were uninfected and unexposed to Cd; the second group (TCd) contained infected, Cd exposed sheep, and its control (group CT) contained infected, unexposed sheep. The experimental Cd exposure resulted in significantly higher Mn concentrations in sheep tapeworms (10.0 mg/kg) than in sheep muscle (0.6 mg/kg) and kidney (0.8 mg/kg). The experimental Cd exposure also significantly decreased the Cu concentrations in sheep liver and muscle. Moreover Cd exposure decreased the Fe concentrations in sheep kidney but caused it to increase in sheep liver and muscle. Zinc concentrations showed no differences between groups (Cd, TCd, C, T) in any monitored sheep tissues. The article also discuss the effect of tapeworm infection on a significant decrease of Fe in sheep muscle, liver and kidneys, as well as a decrease in Cu levels of the muscles and liver. This mineral imbalance may contribute to various health problems such as osteoporosis, metabolic processes disorder, antioxidant (SOD) dysfunction etc.

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Section: Introductionmentioning

confidence: 99%

Competition for minerals (Zn, Mn, Fe, Cu) and Cd between sheep tapeworm (Moniezia expansa) and its definitive host sheep (Ovis aries)

et al. 2011

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“…In a recent series of studies conducted by Sures and co-workers the most conspicuous metal accumulation was found in adult acanthocephalans parasitizing ®sh (see review by Sures and Taraschewski 1999;Sures et al 1999a). In contrast, only a few studies have been published to date regarding terrestrial host-parasite systems (Enigk et al 1973;Ince 1976;Greichus and Greichus1980;Sures et al 1998). In these investigations, heavy-metal concentrations were compared between the intestinal nematode Ascaris suum and its porcine de®n-itive host.…”

Section: Introductionmentioning

confidence: 99%

Cadmium accumulation in Moniliformis moniliformis (Acanthocephala) from experimentally infected rats

2000

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The accumulation of cadmium in Moniliformis moniliformis parasitizing experimentally infected rats that had been orally exposed to cadmium was investigated in this study. Cadmium accumulation in the helminth and in different tissues of the host was determined using electrothermal atomic absorption spectrometry (AAS) after a 3-week period of exposure. The mean cadmium concentration measured in M. moniliformis was 5.8 microg g(-1) wet weight, which was 20, 23, and 119 times higher than that determined in the kidney, liver, and intestine of the host, respectively. Although female worms accumulated higher amounts of cadmium than did males, no tendency emerged between the cadmium concentration and the weight of individual acanthocephalans. This study reveals that cadmium accumulation also occurs in archiacanthocephalans, but to a lesser degree than in palaeacanthocephalans parasitizing fish. Due to its cadmium-accumulation capacity, M. moniliformis might be used as a highly sensitive free-living bioindicator in terrestrial and urban ecosystems.

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“…7) is unknown. Sures et al (1998) found that concentration of lead in the digenean parasite Fasciola hepatica was in average a hundred times higher than in the muscle, kidney or liver of the host. Intestinal nematode parasites Ascaris suum, on the contrary, had the concentrations of lead and cadmium significantly lower than in their host tissues.…”

Section: Discussionmentioning

confidence: 98%

“…Nematodes appear not to be suitable as sentinels, whereas a higher metal accumulation capacity is described for cestodes and especially for acanthocephalans (Lafferty, 1997). Only a few articles have been published on how mammalian nematodes accumulate heavy metals (Sures et al, 1998;Barus et al, 2001Barus et al, , 2003Barus et al, , 2007. Barus et al (2007) report that the concentration of heavy metals was significantly higher in specimens of Philometra ovalta (Nematoda: Philometroidea) compared to the host muscle tissue.…”

Section: Discussionmentioning

confidence: 99%

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Heavy metal accumulation in small terrestrial rodents infected by cestodes or nematodes

Jankovská¹,

Langrová²,

Bejček³

et al. 2008

Parasite

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Summary :The aim of the present study was to assess whether there is a difference in accumulation of heavy metal ions (Cd, Cr, Cu, Mn, Ni, Pb and Zn) in hosts (small mammals) infected by cestode parasites when compared to those without cestode infection. The abundance of gastrointestinal parasites and bioaccumulation of heavy metals in host livers and kidneys were measured. Contents of heavy metals in hosts were determined by ICP OES method. The hosts with cestode infection (Paranoplocephala sp.) had lower contents of heavy metals in their livers and kidneys compared to hosts with nematode infection (Mastophorus muris). The content of Pb, Cd, Cr, Cu and Ni was higher in kidneys than in livers, in both (cestode and nematode infected) rodents while the content of Mn was higher in livers. Content of Zn was similar. The content of heavy metals in host was decreasing with the increasing abundance of cestodes (Paranoplocephala sp.). Species-response models to particular heavy metals are presented. Résumé : ACCUMULATION DE MÉTAUX LOURDS CHEZ DES PETITS RONGEURS TERRESTRES ATTEINTS DE CESTODOSES OU DE NEMATODOSES ) avaient des taux de métaux lourds dans leur foie et dans leurs reins plus bas comparés aux hôtes porteurs de nématodes (Mastophorus muris). Les taux de Pb, Cd, Cr, Cu et Ni étaient plus élevés dans les reins que dans le foie chez les les rongeurs porteurs de cestodes ou de nématodes, alors que les taux de Mn étaient plus élevés dans le foie et que ceux de Zn étaient similaires. Les taux de métaux lourds chez les hôtes diminuaient quand l'abondance de cestodes (Paranoplocephala sp.) augmentait. Des modèles de réponse des espèces à des métaux particuliers sont présentés.KEY WORDS : bioaccumulation, Cd, Cr, Cu, Mn, Ni, Pb, Zn, small mammals, rodents, cestode infection, nematode infection. : bioaccumulation, Cd, Cr, Cu, Mn, Ni, Pb, Zn, petit levels of heavy metals in the environment may be monitored appropriately by the assessment of their concentrations in internal organs of free-living small mammals (Ieradi et al., 2003;Kålås et al., 2000). MOTS CLÉSStudies on endoparasites of fish revealed that several helminths were able to accumulate considerable concentrations of heavy metals (Schludermann et al.,

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Research note Relative concentrations of heavy metals in the parasites Ascaris suum (Nematoda) and Fasciola hepatica (Digenea) and their respective porcine and bovine definitive hosts

Cited by 40 publications

References 16 publications

Competition for minerals (Zn, Mn, Fe, Cu) and Cd between sheep tapeworm (Moniezia expansa) and its definitive host sheep (Ovis aries)

Competition for minerals (Zn, Mn, Fe, Cu) and Cd between sheep tapeworm (Moniezia expansa) and its definitive host sheep (Ovis aries)

Cadmium accumulation in Moniliformis moniliformis (Acanthocephala) from experimentally infected rats

Heavy metal accumulation in small terrestrial rodents infected by cestodes or nematodes

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