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A long-term toxicological investigation on the effect of tris(maltolate)aluminum(III) in rabbits.
Fontana, L; Perazzolo, M; Stella, M P; Tapparo, A; Corain, B; Favarato, M; Zatta, P.
Affiliation
  • Fontana L; Università di Padova, Dipartimento di Biologia, Italy.
Biol Trace Elem Res ; 31(2): 183-91, 1991 Nov.
Article in En | MEDLINE | ID: mdl-9438039
ABSTRACT
The toxicity of i.v. injected hydrophilic aluminum complex tris(maltolate)aluminum(III) was studied in New Zealand white rabbits for a period of time ranging from 5 to 63 wk. Animals were injected 3-5 times a week with 1 mL of 7.5 mM Al(malt)3 and one rabbit with a dose 10 times higher after 14 wk of treatment. Autopical examination was performed on all animals. Chemoclinical analysis (glucose, urea, creatinine, cholesterol, bilirubin, alanin aminotransferase, aspartate aminotransferase, alkaline phosphatase, gamma-glutamyl-transferase, LDH, CK, total protein, triglycerides, and Ca2+) gave no variation in treated animals with respect to the control. The toxicological data show a moderate systemic general toxicity at doses far higher than those used in similar previous experiments using Al(acac)3 (acac = 2,4 pentanedionate), a hydrolytically stable and more lipophilic aluminum(III) complex (1). The diversity of behavior is discussed in terms of metal speciation as well as respect to the thermodynamic and kinetic properties of the two complexes in aqueous solution. The toxicological model presented here emphasizes that neutral, water compatible aluminum(III) complexes are to be considered as promising tools for toxicological experiments providing biological models of human pathologies.
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Collection: 01-internacional Database: MEDLINE Main subject: Organometallic Compounds / Pyrones / Aluminum Limits: Animals Language: En Journal: Biol Trace Elem Res Year: 1991 Type: Article Affiliation country: Italy
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Collection: 01-internacional Database: MEDLINE Main subject: Organometallic Compounds / Pyrones / Aluminum Limits: Animals Language: En Journal: Biol Trace Elem Res Year: 1991 Type: Article Affiliation country: Italy