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Endocrine and metabolic changes in Anguilla anguilla L. following exposure to β-naphthoflavone—a microsomal enzyme inducer
AbstractAnguilla anguilla L. were exposed during 24 and 48 h to 2.7 μM β-naphthoflavone (BNF), a known microsomal enzyme inducer. The BNF effects on thyroid-stimulating hormone (TSH), free triiodothyronine (T3), free thyroxine (T4) and cortisol plasma levels were investigated. Alterations on plasma glucose and lactate levels were also measured as an indication of energy-mobilizing hormones alterations. BNF showed to be able to decrease significantly A. anguilla plasma T4 levels, whereas TSH, T3 and cortisol plasma remained constant. However, plasma glucose levels were significantly increased, demonstrating that intermediary metabolism has been affected. These results demonstrate that BNF a PAH-like compound alters the normal functioning of the hypothalamo-pituitary-thyroid (HPT) axis in A. anguilla.
Endocrine and metabolic changes in Anguilla anguilla L. following exposure to β-naphthoflavone—a microsomal enzyme inducer
AbstractAnguilla anguilla L. were exposed during 24 and 48 h to 2.7 μM β-naphthoflavone (BNF), a known microsomal enzyme inducer. The BNF effects on thyroid-stimulating hormone (TSH), free triiodothyronine (T3), free thyroxine (T4) and cortisol plasma levels were investigated. Alterations on plasma glucose and lactate levels were also measured as an indication of energy-mobilizing hormones alterations. BNF showed to be able to decrease significantly A. anguilla plasma T4 levels, whereas TSH, T3 and cortisol plasma remained constant. However, plasma glucose levels were significantly increased, demonstrating that intermediary metabolism has been affected. These results demonstrate that BNF a PAH-like compound alters the normal functioning of the hypothalamo-pituitary-thyroid (HPT) axis in A. anguilla.
Endocrine and metabolic changes in Anguilla anguilla L. following exposure to β-naphthoflavone—a microsomal enzyme inducer
Teles, M. (Autor:in) / Oliveira, M. (Autor:in) / Pacheco, M. (Autor:in) / Santos, M.A. (Autor:in)
Environmental International ; 31 ; 99-104
14.07.2004
6 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch