Paraquat--a superoxide generator--kills neurons in the rat spinal cord.
Free Radic Biol Med
; 18(5): 861-7, 1995 May.
Article
em En
| MEDLINE
| ID: mdl-7797093
ABSTRACT
Microdialysis was used to administer paraquat into the spinal cord of the anesthetized rat to determine the effects of the in vivo generation of the superoxide anion (O2.-) on neurons. Exposure to paraquat caused blockage of axonal conduction, destruction of the cell bodies of neurons, and a general release of amino acids. Thus, paraquat is quite harmful to neuronal tissue. Similarities between paraquat-induced damage and that previously observed from the hydroxyl radical are consistent with paraquat, causing damage by generation of reactive oxygen species and the widespread belief that generation of O2.- initiates the formation of destructive reactive oxygen species in a wide variety of traumas and other disorders.
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Base de dados:
MEDLINE
Assunto principal:
Paraquat
/
Medula Espinal
/
Superóxidos
/
Potenciais Evocados
/
Aminoácidos
/
Neurônios
/
Neurotoxinas
Limite:
Animals
Idioma:
En
Revista:
Free Radic Biol Med
Assunto da revista:
BIOQUIMICA
/
MEDICINA
Ano de publicação:
1995
Tipo de documento:
Article
País de afiliação:
Estados Unidos