ABSTRACT
Aims:In traditional medicine, several plant species from Rutaceae’s family have been used to treat sickle cell anemia. However, more studies are needed to corroborate the antisickling activity of Zanthoxylumleprieuriispecies. The objective of this paper was to evaluate the sickling cell inhibition and radical scavenging activities of hydroethanolic and aqueous extracts of Zanthoxylum leprieurii’s bark, a plant species used in the management of sickle cell anemia in eastern Côte d’Ivoire.Methods:Hydroethanolic and aqueous extracts of the stem bark of Zanthoxylum leprieuriiwere prepared. Qualitative and quantitative phytochemical tests were carried out. In addition, diphenyl 1 2 picrylhydrazyl (DPPH) was used to determine the antioxidant potential of these two extracts. The antisickling activity of two extracts was determined by the Emmel method.Resultsand Discussion: Zanthoxylum leprieurii’s barkextracts have demonstrated antioxidant property. The IC50value of the hydroethanolic extract (0.308±0.06) was lower than that of the decocted (0.434 ±0.06). At 10mg/mL, the sickling cell inhibition of DZL was 81% ±2.66 while EZL was 89% ±0.44. The presence of alkaloids, sterols, Polyterpenes and phenolic compounds in both extracts could explain the sickling inhibition activity of these extracts. All the extracts revealed an antioxidant and antisickling activities higher than the standard.Conclusion: The hydroethanolic extract (EZL) demonstrated a higher antisickling activity and exhibited a better free radical scavenging activity.The use of Zanthoxylum leprieurii’s bark in the traditional management of sickle cell anemia is justified
ABSTRACT
Place and Duration: Laboratory of Biochemical Pharmacodynamics, Faculty of Biosciences, University Félix Houphouët - Boigny, from March to June 2018. Methodology: Serial extraction was done using methanol and water as solvents. The study was evaluated by orally daily doses of extracts 300, 600 and 1200 mg/kg. The treatment for 28 days concerned seven groups of animals, the control group and six treated groups. Each group included six animals, 3 males and 3 females. Animals of control group didn’t have any treatment. Animals were observed for general behavioural and signs of abnormalities during the experiment. After all treatments, blood was collected for haematologi cal and biochemical analysis. Liver, kidney, and heart were removed, weighed for histological study. Results: The results showed that, there were not any significant (p ?0.05) changes in both the absolute and relative organ weights between the control and the test groups. Biochemical parameters were statistically equal in all groups. In addition, both extracts did not induce any significant effect on RBC and indices relating to it (HGB, PCV, MCV, MCH and MCHC) throughout the experimental period. But, there was a decrease ( 16.33±1.68) on WBC with methanolic extract compared to control ( 13.79±2.73 ). Histological exam ination of the liver, kidneys, and the heart showed normal organisation and structure of heart, kidneys and liver. Conclusion: It appears that the methanolic and aqueous extracts of hull of Arachis hypogaea did not produce any toxicity in oral subacute toxicity study. However, further studies are needed to confirm long term toxicities.
ABSTRACT
Among the HIV / AIDS infected, individuals contract fungal infections of which many die as a direct consequence of these infections. In this study, the antifungal activity of ten extracts (stem bark) from Terminalia mantaly H. Perrier was evaluated on the in vitro growth of clinical isolate of pathogenic fungi (Cryptococcus neoformans). Agar double dilution method in slope tubes was adopted to determine anticryptococcal activity. All extracts exhibited antifungal activity in dose-response relationship. The residue extracts T4-2 obtained after degreasing the hydro-alcoholic extract T0 (MFC = 24.37μg/Ml; IC50 = 5.87μg/mL) is the most active extract. Moreover, for a given concentration it is said that there are not significant differences between the different tests for each extract (P< 0.05). Therefore, using the hydro-alcoholic solvent (70% ethanol) followed by removal of oil is the best way to obtain an optimally concentrated active ingredient from Terminalia mantaly. The present study justifies the traditional use of this plant for the treatment of fungal infections.