Journal
APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
Volume 194, Issue 4, Pages 1645-1658Publisher
SPRINGER
DOI: 10.1007/s12010-021-03753-z
Keywords
Antioxidant; Ethanol extract; Myrtus communis; Oxidative stress; Streptozotocin
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The study aimed to evaluate the protective effects of Myrtus communis L. berries ethanol extract against STZ-induced oxidative stress in diabetic rats. Treatment with the extract resulted in significant improvements in liver function markers, blood glucose levels, and antioxidant enzyme activity in the rats.
Streptozotocin (STZ) is an antitumor antibiotic indicating in the treatment of metastatic islet cell carcinoma of the pancreas. It is also used as a tool to create experimental diabetes models. The STZ exposure at a high dose causes severe damage to cells of humans and other mammals. The goal of the present study was to assess the protective effects of the ethanol extract of the Myrtle (Myrtus communis L.) berries, which is a well-known medicinal plant due to its rich phenolic content and beneficial effects on health, against STZ-induced oxidative stress in the diabetic rats. Diabetes was induced by STZ (40 mg/kg, i.p.) in the rats. After diabetes induction, a significant increase in alanine aminotransferase (ALT), aspartate aminotransferase (AST), malondialdehyde (MDA), and blood glucose levels as well as a significant decrease in superoxide dismutase (SOD) activities and glutathione (GSH) levels was observed. The rats were treated to three different ethanol extracts of Myrtle berries (0.25, 0.5, and 1 g/kg) by oral gavage for 14 days. At the end of the experiment, ALT, AST, MDA, and blood glucose levels of the rats significantly decreased while significant increases in GSH levels and SOD activities were observed. We believe that our findings may contribute to the development of new drugs in the treatment of many global disorders due to the antioxidant activity of the ethanol extract of Myrtus communis L. berries.
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