Antihypertensive and antioxidant activity of Cassytha filiformis L.: A correlative study
- At August 02, 2017
- By Yori Yuliandra
- In Scientific Paper
36
Objective: To study the blood pressure lowering effect of Cassytha filiformis extract in animal models of hypertension and its correlation with the antioxidant activity. Method: Male Sprague-Dawley rats were divided into two groups: endocrine hypertension (HTN group) that received a combination of prednisone and salt for two weeks and oxidative stress-associated hypertension (HTN-OS group) that received additional induction of L-Nitro Arginine Methyl Esther (L-NAME) for two days. Each group was subdivided into 4 and treated intravenously with the extract 5; 10; and 20 mg/kg, and vehicle control. The systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean arterial pressure (MAP) were recorded. The blood was taken before and at the end of recording for the measurement of serum concentration of nitric oxide (NO). The changes of blood pressure were analyzed by two-way ANOVA while its correlation with NO concentration was analyzed by Pearson’s Correlation. Results: The study showed a significant antihypertensive effect of the extract as compared with control group (P<0.05) in both hypertensive models. Extract in the dose of 5 mg/kg showed the best blood pressure lowering effect. However, the correlation analysis did not show an association between NO increase and blood pressure lowering effect (P>0.05). Conclusion: The study concludes that Cassytha filiformis extract in the dose of 5 mg/kg exhibits the best blood pressure lowering effect in both animal models. Antihypertensive activity of the extract is not correlated with its antioxidant effect.
Read More»Efek Antihipertensi Tumbuhan Tali Putri (Cassytha filiformis L.) pada Tikus Hipertensi Yang Diinduksi Prednison dan Garam
- At June 28, 2013
- By Yori Yuliandra
- In Scientific Paper
- 0
A study of the antihypertensive effect of Cassytha filiformis L. defatted extract on the hypertensive rats has been carried out. The study was conducted on 30 male Sprague-Dawley rats induced by Prednisone-NaCl for 14 days to obtain hypertensive rats. All rats were anesthetized to perform direct blood pressure measurement and divided into control group, extract-treated groups (5, 10 and 20 mg/kg), and tempol group. Each rat received three repetitive doses administered intravenously in one hour interval. During each dose interval, the systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), and heart rate (HR) were measured. All cardiovascular data were presented as mean of percentage change ± SEM. The data were analyzed by three-way ANOVA and Tukey’s HSD. The significance level was taken at P<0.05. The study showed that the defatted extract of C. filiformis decreased SBP, DBP, MAP, and HR significantly. The extract at the dose of 5 mg/kg and tempol 100 mcmol/kg showed insignificant difference in lowering blood pressure. Keywords: cassytha filiformis, tali putri, antihypertensive, blood pressure, heart rate
Read More»Daun Tanaman Akar Mambu (Connarus grandis jack.) Sebagai Obat Anti Hipertensi : Efektivitas Ekstrak Etanolnya pada Tikus Hipertensi 2k1C Goldblatt
An anti hypertensive effect of Connarus grandis Jack leaves ethanolic extract has been investigated on anesthetized two kidney one clipt (2K1C) Goldblatt hypertensive rats. Four groups of animals were treated with the extract at doses of 10, 20, 40 and 80 mg/kg BW intra peritoneally. These doses were repeated every half an hour. Blood pressure (systolic, diastolic, mean) and heart rat were measured ten miknutes after each dose. As comparisons, a groups of control animals (treated with saline) and another treated with Captopril (2.5 mg/kg) were used. Results showed that the extract reduced SBP, DBP and MAP especially at dose of 20 mg/kg. The potency of this extract in reducing blood pressure was lower as compared to those given by Captopril.
Read More»
