Moustaid, K. and Nasser, B. and Baudrimont, I. and Anane, R. and El Idrissi, M. and Bouzidi, A. and Creppy, E.E. (2005) Comparative evaluation of the toxicity induced by mussels (Mytilus galloprovincialis) from two sites of the Moroccan Atlantic coast in mice Évaluation comparée de la toxicité des moules (Mytilus galloprovincialis) de deux sites du littoral atlantique marocain sur des souris. Comptes Rendus - Biologies, 328 (3). pp. 281-289.

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Abstract

Preliminary studies showed that seawater contains heavy metals from domestic, agricultural and industrial wastes. Marine bivalves concentrate these pollutants by filtration and serve as vectors in human exposure. The objective of this study was to determine the concentration of heavy metals; cadmium (Cd); chromium (Cr), and lead (Pb) in mussels (Mytilus galloprovincialis) collected in two coastal sites; Jorf Lasfar (JL) (neighbouring a phosphate processing platform) and Oualidia (OL) (a vegetable growing area) located at 120 and 190 km south of Casablanca, respectively. Another objective was to test and compare the toxicity of these mussels on mice. The results indicated the presence of heavy metals (Cd, Cr, and Pb) in mussels at different concentrations, depending on the collection period. Higher concentrations were obtained at JL than at OL: for example, Cd concentrations were 80±15 to 199±28 versus 23±5 μg/g mussel dry weight, respectively. Cramming with mussel powder did not increase Cd, Cr, or Pb concentration in either liver or kidneys of treated mice. The relative kidney weights were reduced. Increased glucose urea was observed in animals' urine. Treatment with mussels from OL induced significant reduction (20) in mice body weight, together with an increase in creatinuria. These results indicate that mussels collected from OL are more harmful than those obtained from JL are. All these mussels should not be recommended for human consumption. © 2005 Académie des sciences. Publié par Elsevier SAS. Tous droits résevés.

Item Type: Article
Uncontrolled Keywords: cadmium; chromium; creatine; glucose; heavy metal; lead; phosphate; sea water; urea; marine toxin, bioaccumulation; bivalve; heavy metal; toxicity, agriculture; animal experiment; animal model; animal tissue; article; Atlantic Ocean; body weight; chemical industry; coastal waters; concentration (parameters); controlled study; dry weight; food intake; food poisoning; geographic distribution; glucose urine level; kidney; kidney mass; liver level; Morocco; mouse; mussel; Mytillus; nonhuman; powder; sea pollution; statistical significance; time; toxicity testing; urine level; weight reduction; animal; bivalve; comparative study; male, Africa; Atlantic Ocean; Atlantic Ocean (Northeast); Eastern Hemisphere; Morocco; North Africa; oceanic regions; World, Animalia; Bivalvia; Mytilus galloprovincialis, Animals; Bivalvia; Male; Marine Toxins; Mice; Morocco
Subjects: Agricultural and Biological Sciences
Divisions: SCIENTIFIC PRODUCTION > Agricultural and Biological Sciences
Depositing User: Administrateur Eprints Administrateur Eprints
Last Modified: 31 Jan 2020 15:44
URI: http://eprints.umi.ac.ma/id/eprint/1418

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