Effect of Hydroalcoholic Extract of Ginger on Cardiac Parameters in Male Rats with Renovascular Hypertension

High blood pressure is one of the most important concerns of the healthcare system, especially in low- and middle-income countries. In the present study, we aimed to investigate the protective effect of the hydromethanolic extract of ginger on cardiac parameters in male rats with renovascular hypertension.

A total of 54 rats were randomly divided into 6 groups as follows: control, hypertensive group, hypertensive group (hydromethanolic extract of ginger with a dose of 100 mg/kg), hypertensive group (hydromethanolic extract of ginger with a dose of 200 mg/kg), hypertensive group (hydromethanolic extract of ginger with a dose of 300 mg/kg), and surgical group receiving hydromethanolic extract of ginger with a dose of 200 mg/kg. Rats were gavaged for 42 days, once every day, using hydromethanol extract of ginger. Afterward, the heart rate was measured every 7 days. Ejection fraction (EF) and cardiac index were evaluated by SPSS-16 at a significance level of 0.05.

The results of the study showed that the hydroethanolic extract of ginger caused a significant decrease in heart rate in the group without induced blood pressure receiving ginger extract (dose of 200 mg/kg) and in the induced blood pressure group gavaged ginger at a dose of 200 mg/kg. It was also found that there was a significant difference between the average EF in the studied groups; however, the cardiac index had no significant difference in the studied groups.

Hydroethanolic extract of ginger can reduce heart rate in hypertensive models and have a significant effect on cardiac output. Since ginger has no effect on cardiac index, studies with a longer duration of treatment are needed in this case, nevertheless, it can have a significant effect on ejection fraction