The effect of ethanol-based coriander (Coriandrum sativum L.) seed extract on oxidative stress, antioxidant level and cellular senescence in the heart of obese rat

Context: High-fat diets contribute to oxidative stress and trigger cellular senescence through an imbalance in reactive oxygen species. The potential of coriander (Coriandrum sativum) seed, known for its therapeutic properties against oxidative stress and senescence in obese hearts, has been relatively unexplored. Aims: To evaluate the impact of ethanol-based C. sativum seed extract on oxidative stress, antioxidant levels, and senescence parameters in the hearts of obese rats induced by a high-fat diet. Methods: Twenty-nine male Wistar rats were divided into five groups, fed different diets for 24 weeks, and received C. sativum extract treatment for 12 weeks. This experiment assessed malondialdehyde (MDA) as an oxidative stress marker, antioxidant level by measuring catalase and glutathione (GSH), cellular senescence state by measuring senescence-associated β-galactosidase (SA-β-Gal) activity, and p21 levels in heart tissue. Results: C. sativum seed extract demonstrated a significant reduction in MDA levels in the hearts of obese rats when compared to the control groups. Furthermore, the extract led to a significant increase in catalase and GSH levels in the hearts of non-obese rats, whether on a normal or high-fat diet. Although the C. sativum-treated groups exhibited a downward trend in senescence markers (SA-β-Gal and p21), the observed differences did not reach statistical significance. Conclusions: Ethanol-based C. sativum seed extract exhibited promising potential in mitigating oxidative stress in the hearts of obese rats and enhancing antioxidant levels in the hearts of non-obese rats subjected to both normal and high-fat diets. This underscores the preventive role of C. sativum seed extract in alleviating oxidative stress, particularly in the context of a high-fat diet. However, there was insufficient evidence to conclusively demonstrate a significant improvement in cellular senescence with the use of ethanol-based C. sativum seed extract.