Effect of short-term ethanol administration on cadmium retention and bioelement metabolism in rats continuously exposed to cadmium. 2000

M M Brzóska, and J Moniuszko-Jakoniuk, and M Jurczuk, and M Gałazyn-Sidorczuk, and J Rogalska
Department of Toxicology, Medical University, Mickiewicza 2c str., 15-222 Bialystok, Poland.

The present study was performed to assess the effect of short-term ethanol administration on cadmium retention and accumulation as well as on bioelement metabolism (zinc, copper, calcium, and magnesium) in rats exposed to an aqueous solution of cadmium chloride for 8 weeks. Intoxication with cadmium led to accumulation of this toxic metal, particularly in the liver and kidney, which was linked to metallothionein synthesis as well as to a disturbance in the metabolism of zinc, copper, and calcium. These effects were dependent on the level of exposure. The administration of ethanol in the final phase of cadmium treatment increased cadmium retention and accumulation in the body with simultaneous elevation in liver and kidney metallothionein concentration. Ethanol alone or with cadmium caused or intensified the cadmium-induced changes in metabolism of zinc and copper. Calcium metabolism disturbed by cadmium was not influenced by ethanol. Neither agents had any effect on magnesium metabolism. We conclude that even short-term ethanol consumption in conditions of exposure to cadmium can increase this heavy metal body burden and lead to more serious disturbances in metabolism of important elements such as zinc and copper. Cadmium- and ethanol-induced changes in the homeostasis of these microelements are probably connected with the ability of both xenobiotics to cause metallothionein induction.

UI MeSH Term Description Entries
D007668 Kidney Body organ that filters blood for the secretion of URINE and that regulates ion concentrations. Kidneys
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D008297 Male Males
D008903 Minerals Native, inorganic or fossilized organic substances having a definite chemical composition and formed by inorganic reactions. They may occur as individual crystals or may be disseminated in some other mineral or rock. (Grant & Hackh's Chemical Dictionary, 5th ed; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Mineral
D002104 Cadmium An element with atomic symbol Cd, atomic number 48, and atomic weight 112.41. It is a metal and ingestion will lead to CADMIUM POISONING.
D002492 Central Nervous System Depressants A very loosely defined group of drugs that tend to reduce the activity of the central nervous system. The major groups included here are ethyl alcohol, anesthetics, hypnotics and sedatives, narcotics, and tranquilizing agents (antipsychotics and antianxiety agents). CNS Depressants,Depressants, CNS
D004347 Drug Interactions The action of a drug that may affect the activity, metabolism, or toxicity of another drug. Drug Interaction,Interaction, Drug,Interactions, Drug
D000431 Ethanol A clear, colorless liquid rapidly absorbed from the gastrointestinal tract and distributed throughout the body. It has bactericidal activity and is used often as a topical disinfectant. It is widely used as a solvent and preservative in pharmaceutical preparations as well as serving as the primary ingredient in ALCOHOLIC BEVERAGES. Alcohol, Ethyl,Absolute Alcohol,Grain Alcohol,Alcohol, Absolute,Alcohol, Grain,Ethyl Alcohol
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D017208 Rats, Wistar A strain of albino rat developed at the Wistar Institute that has spread widely at other institutions. This has markedly diluted the original strain. Wistar Rat,Rat, Wistar,Wistar Rats

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