Bioaccumulation of cadmium and lead and its effects on hepatopancreas morphology in three terrestrial isopod crustacean species

Mazzei, Veronica; Longo, G.; Brundo, Maria Violetta; Sinatra, Fulvia; Copat, Chiara; Conti, Gea Oliveri; Ferrante, Marco

doi:10.1016/j.ecoenv.2014.09.015

Cited by 77 publications

(59 citation statements)

References 33 publications

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“…The long-term monitoring of heavy metal pollution is the only way to meet the legislative demands and decrease pressure on the environment. However, most heavy metals like lead or cadmium are toxic even at low concentrations, others, which belong to a group of essential micronutrients, pose health risks in high supplementation only, but their monitoring is also needed [1,2,3]. Among essential micronutrients, zinc(II) plays one of the most important role.…”

Section: Introductionmentioning

confidence: 99%

Improved Electrochemical Detection of Zinc Ions Using Electrode Modified with Electrochemically Reduced Graphene Oxide

et al. 2016

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Increasing urbanization and industrialization lead to the release of metals into the biosphere, which has become a serious issue for public health. In this paper, the direct electrochemical reduction of zinc ions is studied using electrochemically reduced graphene oxide (ERGO) modified glassy carbon electrode (GCE). The graphene oxide (GO) was fabricated using modified Hummers method and was electrochemically reduced on the surface of GCE by performing cyclic voltammograms from 0 to −1.5 V. The modification was optimized and properties of electrodes were determined using electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). The determination of Zn(II) was performed using differential pulse voltammetry technique, platinum wire as a counter electrode, and Ag/AgCl/3 M KCl reference electrode. Compared to the bare GCE the modified GCE/ERGO shows three times better electrocatalytic activity towards zinc ions, with an increase of reduction current along with a negative shift of reduction potential. Using GCE/ERGO detection limit 5 ng·mL−1 was obtained.

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Section: Introductionmentioning

confidence: 99%

Improved Electrochemical Detection of Zinc Ions Using Electrode Modified with Electrochemically Reduced Graphene Oxide

et al. 2016

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“…It is known, that cadmium and its compounds are capable to aff ect many organs and provoke pathological processes in physiological systems, causing anemia, hypertensia, disturbances of functions of the liver and damage of bone tissue (Campbell, 1999;Mazzei et al, 2014). Th ere are publications indicating that accumulation of cadmium in kidneys tissue, the pancreas and spleen practically does not depend on structure of a diet whereas its accumulation in the liver, on the contrary, is a subject to considerable changes depending 21.7 ± 1.9 1.57 ± 0.1* 2 78 4.5 ± 1.4 24.5 ± 0.1 2.9 ± 0.09 Sorex araneus liver 1 108 13.1 ±0.8 28.2 ± 2.4* 0.20 ± 0.02* 2 54 24.2 ±7.6 69.4 ± 21.8 0.60 ± 0.04 kidney 1 108 7.7 ± 0.9 13.7 ± 2.2* 0.39 ± 0.05* 2 54 11.3 ±3.5 37.8 ± 11.8 0.90 ± 0.15 spleen 1 108 5.6 ± 0.1* 14.7 ± 2.1* 0.50 ± 0.02* 2 54 34.2 ± 10.7 48.6 ± 15.2 0.70 ± 0.02 * Statistically signifi cant diff erences between values of heavy metals in background zone (1) and impact zone (2) are shown at p < 0.05.…”

Section: Resultsmentioning

confidence: 99%

Accumulation of Heavy Metals by Small Mammals the Background and Polluted Territories of the Urals

Kovalchuk¹,

Mikshevich²

2017

Vestnik Zoologii

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Accumulation of Heavy Metals by Small Mammals in the Background and PollutedTerritories of the Urals. Kovalchuk, L. A., Mikshevich, N. V., Chernaya, L. V. -Accumulation of heavy metals (Cu, Zn, Cd) in hemopoietic-competent organs of ecologically contrast species of small mammals (Clethrionomys glareolus, Sorex araneus, Apodemus uralensis) from natural populations of the Middle and South Urals were considered. Th e content of exogenous and essential trace elements in animal tissues (a liver, kidney, a spleen) was determined by atomic absorption spectroscopy. It has been shown that bioaccumulation of heavy metals in organs of insectivores signifi cantly diff ers from it of bank voles and wood mice. Th e smallest total content of heavy metals is shown in wood mice in technogenic territories of the Middle Urals. Th e submitted data demonstrate the competitive mechanism of the Cu, Zn, Cd. Th e increased concentrations of endogenous trace elements (copper, zinc) in relation to a toxicant (cadmium), other things being equal, reduce cadmium accumulation level in the tissues Sorex araneus. Key words: small mammals, background and impact zones, copper (Cu), cadmium Cd, zinc (Zn). IntroductionTh e Ural region owing to its resource potential and the historical reasons became a zone of environmental risk long ago. Formation of technogenic territories in the Urals is connected with the development of metallurgy which began 300 years ago. Th e most powerful factor of technogenic impact on the nature of the region is the enterprises of nonferrous metallurgy -the main supplier of heavy non-ferrous metals (HM) to the environment. Despite abundance of the actual material illustrating the multifunctional nature of infl uence of exogenous chemical factors on an organism, many aspects of their physiological infl uence still remain disputable or insuffi ciently investigated. Publications on studying of a bio-element profi le in animals from natural populations are oft en contradictory, and the ones on a research of fl uctuations of levels of the contents of bio-elements in animals from background and technogenic territories in comparative aspect are practically absent.An assessment of possible ecological damage is of quite certain theoretical and practical interest. In this context, the numerous groups of the small mammals living in the polluted territories among generations can serve as the biological indicator of disturbances in ecosystem, and the high speed of their reproduction and quick succession of generations allow to study the remote negative eff ects and the developing adaptation mechanisms in these animals. Use of wild rodents allows to assess possible ecological damage of the territory and to predict genetic danger of technogenic pollution to local human population (Zakharov, 2000;Kudyasheva et al., 2004;Prokopyev, 2008;Kovalchuk et al., 2011). Material and methodsTh is study is based on the fi eld and laboratory researches. Th e natural populations of typical representatives of small mammals in the fauna of the Urals were...

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“…Both Cd 2+ and Pb 2+ induce the increase of lysosomes and this phenomenon reflects a state of cell stress (Mazzei et al, 2014). The lysosome contains various acid hydrolases which can eliminate the foreign substances.…”

Section: 1 Analysis Of Cell Ultrastructurementioning

confidence: 99%

“…These heavy metals are not easily degraded and are accumulated through the food chain (Mazzei et al, 2014). The level of heavy metal pollution in aquatic ecosystem is usually monitored by chemical methods such as atomic absorption spectrometry (AAS) or inductively coupled plasma mass spectrometry (ICP-MS).…”

Section: Introductionmentioning

confidence: 99%

Cerebral ganglion ultrastructure and differential proteins revealed using proteomics in the aplysiid (Notarcus leachii cirrosus Stimpson) under cadmium and lead stress

Zhang

Huang

et al. 2016

Environmental Toxicology and Pharmacology

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Bioaccumulation of cadmium and lead and its effects on hepatopancreas morphology in three terrestrial isopod crustacean species

Cited by 77 publications

References 33 publications

Improved Electrochemical Detection of Zinc Ions Using Electrode Modified with Electrochemically Reduced Graphene Oxide

Improved Electrochemical Detection of Zinc Ions Using Electrode Modified with Electrochemically Reduced Graphene Oxide

Accumulation of Heavy Metals by Small Mammals the Background and Polluted Territories of the Urals

Cerebral ganglion ultrastructure and differential proteins revealed using proteomics in the aplysiid (Notarcus leachii cirrosus Stimpson) under cadmium and lead stress

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