Glutathione and malonyldialdehyde levels of liver, kidney and abdominal aorta tissues in STZ-diabetic rats administered gliclazide GLIKLAZID UYGULANAN STZ-DIABETIK SICANLARIN KARACIGER, BOBREK VE ABDOMINAL AORTA DOKULARININ GLUTATYON VE MALONDIALDEHID DUZEYLERI