Abstract
Aging affects cellular functions and impairs tissue homeostasis. Carvacrol, a polyphenolic compound, has been shown to exert a wide range of pharmacological effects, such as antioxidant, anti-inflammatory, and anticancer characteristics. This investigation aimed to evaluate the effect of carvacrol in elderly male rats. Carvacrol at a dose of 15 or 30 mg/kg was administrated daily per os for 60 days to aged rats. The liver, heart, and kidney samples were taken for the analysis of oxidative stress markers. Serum samples were used to evaluate liver enzymes (alanine transaminase (ALT) and aspartate aminotransferase (AST)). The levels of malondialdehyde (MDA) in the liver, heart, and kidney tissues of aged rats were higher. Conversely, the level of thiol was lower in the mentioned tissues than in the young control group. The levels of MDA in the liver, heart, and kidney tissues of aged rats were significantly reduced by carvacrol, which was accompanied by increased levels of total thiol. ALT and AST levels were higher in the serum of aged rats than in the young control ones. Carvacrol decreased ALT and AST levels in the serum of aged rats versus aged control rats. Carvacrol can be effective in protecting susceptible aged tissues and organs by increasing antioxidant defenses and decreasing liver enzymes.
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