Hika, Debabe (2015) Antihypertensive Activity of Aerial Parts of Satureja Punctata (Benth.) Briq. (Lamiaceae). Masters thesis, Addis Ababa University.
![[img]](http://thesisbank.jhia.ac.ke/style/images/fileicons/application_pdf.png) |
PDF (Antihypertensive Activity of Aerial Parts of Satureja Punctata (Benth.) Briq. (Lamiaceae))
DEBABE HIKA.pdf - Accepted Version Restricted to Repository staff only Download (2MB) | Request a copy |
Abstract
Satureja punctata Benth. Briq. (Lamiaceae) locally known as ‘‘Lomishet’’ is among the plants used in Ethiopian traditional medicine for the treatment of various diseases including hypertension. The current study aimed at evaluating the antihypertensive activity of the decoction of the aerial parts of this medicinal plant in guinea model of hypertension and its vasorelaxant effect on isolated aorta. Acute hypertension was induced by surgical procedures involving clamping of the left renal artery and blood pressure was recorded invasively by direct cannulation method from the right common carotid artery. Intravenous administration of the decoction at doses of 10, 20 and 30 mg/kg caused 13.66 ± 0.27, 34.35 ± 0.33, 45.78 ± 0.23% (n=6) fall in (p < 0.01) MABP, respectively, in normotensive guinea pig and a respective fall of 16.02 ± 0.28, 38.52 ± 0.50, 52.07 ± 0.42 % (n=6) (p < 0.01) MABP in renovascular hypertensive guinea pig. The decoction also caused a dose-dependent relaxation of aorta precontracted with KCl at a concentration of 2.5- 40 mg/ml, with a maximum relaxation of 98.19 % achieved at 40 mg/ml. Preparative reversed-phase HPLC analyses of the aerial part decoction of S. punctata resulted in isolation of two phenolic compounds, rosmarinic acid and linarin. The structures of these compounds were elucidated by utilization of spectroscopic techniques, i.e., MS, UV, IR, 1D, and 2D NMR. Further, rosmarinic acid showed significant (p<0.01) reduction of MABP by 8.14 ± 0.27, 15.79 ± 0.33 and 31.78 ± 0.64 % (n = 6) at doses of 0.75, 1.5 and 3 mg/kg, respectively, in normotensive guinea pig. The findings of this study suggest that the aerial parts of S. punctata have genuine antihypertensive activity.
| Item Type: | Thesis (Masters) |
|---|---|
| Subjects: | Q Science > Q Science (General) R Medicine > RM Therapeutics. Pharmacology |
| Divisions: | Africana |
| Depositing User: | Vincent Mpoza |
| Date Deposited: | 17 Oct 2018 07:58 |
| Last Modified: | 17 Oct 2018 07:58 |
| URI: | http://thesisbank.jhia.ac.ke/id/eprint/6854 |
Actions (login required)
 |
View Item |