Interaction of stannous chloride leads to alteration in DNA, triphosphate nucleotides and isolated bases.
Mol Cell Biochem
; 280(1-2): 173-9, 2005 Dec.
Article
em En
| MEDLINE
| ID: mdl-16311920
Stannous chloride (SnCl2) is a reducing chemical agent used in several man-made products. SnCl2 can generate reactive oxygen species (ROS); therefore, studies have been carried out in order to better understand its damaging action in biological systems. In this work, calf thymus DNA, triphosphate nucleotides and isolated bases were incubated with SnCl2 and the results were analyzed through UV spectrophotometry. The presence of stannous ions altered the absorption spectra of all three isolates. The amount of stannous ions associated to DNA was measured by atomic absorption spectrophotometry. Data showed that more than 40% of the initial SnCl2 concentration was present in the samples. Our results are in accordance with the damaging potential of this salt and present evidence that stannous ions can complex with DNA, inducing ROS in its vicinity, which may be responsible for the observed lesions.
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01-internacional
Base de dados:
MEDLINE
Assunto principal:
Dano ao DNA
/
DNA
/
Compostos de Estanho
/
Nucleotídeos
Limite:
Animals
Idioma:
En
Revista:
Mol Cell Biochem
Ano de publicação:
2005
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Holanda