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Metallothioneins and energy budget indices in cadmium and copper exposed spiders Agelena labyrinthica in relation to their developmental stage, gender and origin.

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Year: 2011 Volume: 154 Issue: 2

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Metallothioneins and energy budget indices in cadmium and copper exposed spiders Agelena labyrinthica in relation to their developmental stage, gender and origin.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Babczynska, Agnieszka Wilczek, Grazyna Wilczek, Piotr Szulinska, Elzbieta Witas, Ilona
Description	Country affiliation: Poland Author Affiliation: Babczynska A ( Department of Animal Physiology and Ecotoxicology, Faculty of Biology and Environmental Protection, University of Silesia, Bankowa 9, Katowice 40-007, Poland. ababczyn@us.edu.pl)
Abstract	The aim of our studies was to explain the role of metallothioneins (MTs) in the neutralization of excessive amounts of metals (essential: copper (Cu) and toxic: cadmium (Cd)) and to describe the energy status in metal-exposed spiders Agelena labyrinthica in relation to its developmental stage, gender and origin. Juvenile, female and male spiders were collected from three variously polluted habitats, transferred to the laboratory and exposed to the metals in their diet. Cu and Cd accumulation in the body and exuviae, bioaccumulation factor, percentage of metallothionein positive cells, MT concentration, percentage of cells with depolarized mitochondria, ATP concentration and ADP/ATP ratio were measured and calculated. Cu appeared to be regulated and its excess is eliminated via, among others, the molting process, while Cd was rather accumulated by the spiders. The level of MTs increased significantly mainly in females exposed to both metals, irrespectively of the pollution degree of their site of origin, indicating a defensive role of the proteins. In general, even if both the MT level and the energy status indices were positively correlated with Cd and Cu concentrations in the spider body, the energy status of A. labyrinthica did not seem disturbed.
File Format	HTM / HTML
ISSN	15320456
Issue Number	3
Volume Number	154
Journal	Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology
Language	English
Publisher	Elsevier
Publisher Date	2011-09-01
Publisher Place	United States
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Toxicology Discipline Pharmacology Cadmium Toxicity Copper Metallothionein Metabolism Spiders Drug Effects Adenosine Diphosphate Adenosine Triphosphate Animals Pharmacokinetics Energy Metabolism Environmental Exposure Enzyme-linked Immunosorbent Assay Female Flow Cytometry Male Membrane Potentials Mitochondria Molting Physiology Growth & Development Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Cell Biology Physiology Health, Toxicology and Mutagenesis Medicine Aquatic Science Biochemistry Toxicology Animal Science and Zoology

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Metallothioneins and energy budget indices in cadmium and copper exposed spiders Agelena labyrinthica in relation to their developmental stage, gender and origin.

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