Abstract:
:Heavy metals are known to induce oxidative damage by way of enhancement of intracellular reactive oxygen species (ROS) production, which often preludes the onset of alterations, such as protein carbonylation and DNA damage. In this study, our aim was to examine the early responses of land snails Eobania vermiculata to environmental contaminants by investigating the use of a modified enzyme-linked immunosorbent assay (ELISA) assay for the measurement of protein carbonylation as a new biomarker of terrestrial pollution as well as by measuring ROS production and DNA damage. Land snails were treated with heavy metals-cadmium, lead, or copper-in vivo (15 or 40 ppm) for 25 days or in vitro (0.5, 5, 50 or 500 μM) for 30 min in the laboratory, and the previously mentioned biomarkers were determined in digestive gland and haemolymph of the treated animals. A statistically significant increase in ROS production, protein carbonylation, and DNA damage was shown in the snails treated with pollutants compared with the untreated snails. The results indicate the effectiveness of measuring ROS production and DNA damage, as well as using the present ELISA method, as sensitive tools of terrestrial pollution biomonitoring studies. Statistically significant correlations among the previously mentioned techniques further enhance their role as promising biomarkers in terrestrial pollution studies.
journal_name
Arch Environ Contam Toxicoljournal_title
Archives of environmental contamination and toxicologyauthors
Itziou A,Kaloyianni M,Dimitriadis VKdoi
10.1007/s00244-010-9583-5subject
Has Abstractpub_date
2011-05-01 00:00:00pages
697-707issue
4eissn
0090-4341issn
1432-0703journal_volume
60pub_type
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