Rosmarinic acid alleviates the cardiac abnormalities in high fat diet induced hypercholesterolemic rats.

Hyperlipidemia is a well-known risk factor for atherosclerosis and subsequent atherosclerotic cardiovascular diseases that are associated with high morbidity and mortality in obese and diabetic patients worldwide. The current study looked on rosmarinic acid's cadioprotective effects in rats fed a high-fat diet as there was no study on this aspect. The rats were given a high-fat diet comprising of 84.3 % conventional laboratory rat chow, 5 % lard, 10 % egg yolk powder, 0.2 % cholesterol, and 0.5 % bile salt to produce hypercholesterolemia. Over a span of eight weeks. The plasma lipid profile, cardiac marker enzymes, membrane bound ATPases, lysosomal enzymes, CRP, fibrinogen, proinflammatory cytokines (IL-1β, IL-6,TNF-α, NF-κB),anti-inflammatory cytokine(IL-10) lipid peroxidation markers, enzymatic and non-enzymatic antioxidant enzymes activity were examined. The thoracic aorta's histopathology was also analyzed. It was discovered that the rats fed a high-fat diet had hypercholesterolemia and showed aberrant values in the aforementioned parameters. However, rats given rosmarinic acid (100 mg/kg b.w.) had these anomalies reversed to near-normal levels. The biochemical investigation was corroborated by enhanced histological examination of the thoracic aorta in rats suffering from hypercholestolemia. The effects of rosmarinic acid on a number of measures were similar to those of the prescription medication simvastatin. These findings revealed that rosmarinic acid is an important component in the cardiovascular system's defence against a high-fat diet induced hypercholesterolemia.