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[Mechanisms of cellular detoxication, nuclear aluminum concentration and hepatocyte protection after experimental
A Y Jeantet1, C Ballan-Dufrançais, C Petter
1Laboratoire d'Histophysiologie fondamentale et appliquée, Université Paris-VI.
Abstract:
A single injection of a massive dose of Al-gluconate (4 mg.kg-1) into the saphenous vein of the rat did not provoke any ultrastructural damage in the liver cells, from 2 min. to 8 days after the injection. Al hepatocytes overload appeared only in nuclei and not in nuclei and not in lysosomes, contrarily to chronic intoxications. Nuclear Al concentration concerned only a small fraction of the quantity injected; another part was sequestered by the macrophage system after precipitation in the blood as phosphates chemically transformed during their incorporation in lysosomes. This effective detoxication mechanism which functioned probably after a first absorption by the hepatocyte, was likely to depend upon the form of gluconate and would explain the resistance of liver cells.
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