Evaluation of the phytochemical content and the use of the essential oil from the leaves of Malaysian Plectranthus amboinicus (lour) spreng as antimalarial in vivo

Ramli, Norazsida and Syed Ahmad, Pakeer Oothuman and Bakhtiar, M. Taher (2016) Evaluation of the phytochemical content and the use of the essential oil from the leaves of Malaysian Plectranthus amboinicus (lour) spreng as antimalarial in vivo. In: Medical Research Symposium & Pacific Partnership in conjunction with Kuantan Research Day 2016, 3rd-5th August 2016, Kuantan, Pahang.

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Abstract

Introduction: This study was conducted to evaluate the phytochemical contents and antimalarial properties of the essential oils extracted from the leaves of Malaysian Plectranthus amboinicus in mice infected with Plasmodium berghei. Methods: The essential oils were extracted and prepared by using a steam distillation technique and subjected to phytochemical screening by using gas chromatography–mass spectrometry (GC-MS). The antimalarial activity of different extract doses of the essential oil was tested in vivo in ICR (Instritute of Cancer Research) mice infected with Plasmodium berghei (PZZ1/100) during early, established and residual infections. The control groups were treated with distilled water (containing 10% DMSO, the solvent of the test extracts) and 2 standard drugs: chloroquine and Fansidar. Results: In all, 5 compounds made up 88.34% of total oil and the major chemical compounds were carvacrol (85.14%), thymoquinone (1.65%), terpinen-4-ol (0.70%), octenol (0.62%) and thymol (0.23%). Antimalarial assay showed this essential oil as a potential prophylactic agent with the percentage chemosuppression of 45.23%, 18.28%, 45.38% and 58.26%, while treated with 50, 200, 400 and 1000 µL/kg respectively of essential oil. It also showed a potential as a curative agent with percentage of chemosuppression of 54.10%, 47.35%, 56.75% and 65.38% while treated with the above dose of essential oil. Statistically, no reduction of parasitemia was calculated for suppressive test. Conclusions: The extract has prophylactic and curative effects on P.berghei in mice.

Item Type:	Conference or Workshop Item (Slide Presentation)
Additional Information:	7448/54964
Uncontrolled Keywords:	phytochemical, toxicity, Plectranthus amboinicus, antimalarial
Subjects:	R Medicine > R Medicine (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Allied Health Sciences Kulliyyah of Medicine Kulliyyah of Pharmacy
Depositing User:	Dr Norazsida Ramli
Date Deposited:	22 Feb 2017 10:43
Last Modified:	26 Feb 2018 18:44
URI:	http://irep.iium.edu.my/id/eprint/54964

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