FICUS EXASPERATA

PHARMACOGNOSY AND HYPOTENSIVE EVALUATION OF FICUS EXASPERATA VAHL (MORACEAE) LEAF

Publisher / Conference Name
Polish Pharmaceutical Society
Abstract / Summary
There is already a literature report on the anti-ulcer effect of water extract of Ficus exasperata. Some communities in Edo and Delta States of Nigeria use the decoction of the leaf as hypotensive crude drug. Verification of this claim and also the microscopy and other pharmacognostic parameters which can be used to establish the identity of the leaf were carried out. The microscopy of the leaf powder revealed the presence of straight walled epidermal cells, cone or nail shaped trichomes or epidermal hairs, clustered or prismatic calcium oxalate crystals of varying dimensions. The percentage weight loss on drying was 9.84 ± 0.08 whereas water and alcohol extractive values were 5.29 ± 0.07 and 2.21 ± 0.11, respectively. The ash value was 30.68 ± 0.44 whereas the acid insoluble ash and water soluble ash values were 17.87 ± 0.37 and 16.73 ± 0.13, respectively. Preliminary phytochemistry of leaf showed that it contains tannins, flavonoids and saponins with no traces of alkaloids or anthraquinones. The water extract showed a dose related reduction in mean arterial blood pressure. At 10 mg/kg, a reduction of 16.6 ± 1.1mmHg was observed, whereas at 30 mg/kg, a fall in mean arterial pressure of 38.3 ± 0.6 mmHg was obtained. The hypotensive effect of the extract was significantly reduced with a prior administration of 2.5 mg of either atropine or chlorpheniramine. This suggests the probable stimulation of muscarinic receptors in the heart or release of histamine into the circulatory system thereby causing the initial fall in blood pressure.
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INVESTIGATING THE EFFECTS OF ETHANOL LEAF EXTRACT OF FICUS EXASPERATA ON THE CEREBRUM OF ADULT WISTAR RATS.

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Publication Type
Abstract
Ficus exasperata is a deciduous, dioecious medicinal plant of the Mulberry family, which is widely employed in traditional medicine due to its therapeutic and pharmacological properties. Despite its extensive medicinal application, there are very limited research on the effects of its ethanol leaf extract on the cerebrum. This study therefore, investigates the potential effects of the ethanol leaf extract on the structure and function of the cerebrum of adult Wistar rats. Thirty-five (35) adult Wistar rats, divided into: control, low-dose, medium-dose, and high-dose treatment groups. were treated with graded concentration of sand paper leaf extract (200mg, 400mg, 600mg, 800mg, 1000mg/kg body weight respectively), for a period of 30 days. Biochemical and histological analyses were then conducted to assess cerebral functions and structural changes. The result revealed administration of the ethanol leaf extract of Ficus exasperata, induced a dose-dependent increase in the body weight of Wistar rats, with higher doses producing a more significant effect. In addition, the extract exhibited minimal impact (p< 0.05) on cerebral oxidative stress markers e.g. Superoxide Dismutase (SOD), Catalase (CAT), Glutathione peroxidase GPX and Malondialdehyde (MDA). The extract also induced beneficial vasoactive changes including vasodilatation and increased blood circulation (active congestion), which decreased with increasing concentration of the sand paper leaf extract. The 200mg/kg body weight leaf extract had the most potent vasoactive effect, while the 1000mg/kg body weight extract had the least effect. However, the structural integrity of the neurons and neuroglia cells were sustained. Further studies are recommended to properly understand the mechanisms involved in its actions so as to ensure safe therapeutic use in humans.
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co-supervisor