Masoud Shamohamadi - Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran
Mehrdad Pooyanmehr - Department of Basic Sciences, Faculty of Veterinary Medicine, Razi University, Kermanshah, Iran
Ali Maleki - Department of Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran
Lida Haghnazari - Department of Clinical Biochemistry, Kermanshah University of Medical Sciences, Kermanshah, Iran

 BACKGROUND: Silver nanoparticles (AgNPs) are widely used in various products. On the other hand, they can cause a variety of toxicity in living organisms, such as biochemical changes and oxidative stress in the liver. Scroph-ularia striata plant can affect the toxicity of AgNPs in diverse parts of the body due to the potent antioxidant compounds. OBJECTIVES: The present study aimed to investigate the modulatory impact of the hydroalcoholic extract of Scrophularia striata on the hepatotoxicity and oxidative stress caused by AgNPs in male Wistar rats. The measured hepatic enzymes and serum biochemical metabolites included alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, lactate dehydrogenase, gamma-glutamyl transferase, albumin, Globulin, total protein, blood urea nitrogen, creatinine, total bilirubin, and direct bilirubin. In addition, the assessed blood oxidative stress markers entailed malondialdehyde, total antioxidant capacity, catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GPx). METHODS: A total of ۳۰ male rats with an average weight of ۲۰۰±۲۰ g were randomly assigned to five experi-mental groups of six. Animals in group ۱ as the negative control received ۲ ml distilled water and in group ۲ as positive control received ۲۰۰ ppm AgNPs (i.e., hepatotoxic dose). The rats in groups ۳, ۴, and ۵ received ۲۰, ۶۰, and ۱۸۰ mg/kg Scrophularia striata extract and ۲۰۰ ppm AgNPs in ۳۰ days, respectively. The animals were sacri-ficed under slight anesthesia ۲۴ h after the last treatment. RESULTS: Hepatic enzymes, serum biochemical metabolites, and oxidative stress markers, mainly CAT, SOD, and GPx in groups ۴ and ۵ were significantly different from the positive and negative control groups (p <۰.۰۵). CONCLUSIONS: Scrophularia striata plant owing to the presence of some special ingredients, such as flavonoids can compensate for the side effects of AgNPs in the body.

Hepatic enzymes, hepatotoxicity, oxidative stress, Scrophularia Striata, silver nanoparticle