No abstract

In Côte d'Ivoire, the market of aphrodisiacs of natural origin has been significantly growing over the last decades. The objective of this study was to evaluate the cytotoxicity of the most employed by Ivorian men, called Aphro. For that, Caco-2/TC7 enterocytes and Vero ATCC cells kidney epithelial cells grown in DMEM medium were exposed to Aphro at concentrations ranging from 216 to 864 µg/mL. Lactate dehydrogenase (LDH) released upon cell death was assayed after 1, 2 and 24h of exposure. In parallel, the effect of Apho was evaluated in differentiated confluent cells by measurements of the trans-epithelial electrical resistance. A time course and significant dose response related increase of LDH was measured in the culture medium of Caco-2/TC7 and Vero ATCC cells exposed to the aphrodisiac. The trans-epithelial electrical resistance of the Caco-2/TC7 cell monolayers also showed a significant decrease from 1400 Ω*cm2 at the onset of the experiment to 450 Ω*cm2 after 24 h of treatment. Cell detachment and structural disorganization were observed in both cell lines. This study reveals the strong cytotoxicity of Aphro extract on both cell lines.

Objective: The present study was undertaken to evaluate antifungal potential of improved crude extracts of Mitracarpus scaber Zucc., an ivorian traditional medicinal plant against two species of clinical yeast isolates: Candida parapsilosis and Candida guilliermondii. Methods:For evaluation of antifungal activity, double dilution method in slope tubes was used. Crude extracts of M. scaber were prepared by extracting with a blender in aqueous and hydroalcohol. In first; Aqueous (X Aq ) and Hydroalcoholic (X 0 ) extracts were evaluated, and secondary the crude extract X 0 was improved by partition in mixture of aqueous and hexanic solvent 50:50 v/v. Each dried phase was also examined. A phytochemical screening has been performed on most active extracts. Results:In vitro antifungal activity showed that crude extract X 0 was the most active with MIC = 6.25 mg/ml. Among the extracts obtained by partition from extract X 0 , extract X 11 (Hexanic phase) was the better with lowest antifungal parameters MIC and MFC range between 1.562 mg/ml and 0.781 mg/ml and IC 50 range between 0.73 mg/ml to 0.598 mg/ml. In addition, the most active extract contained only terpens and steroids.Conclusions: Antifungal activity of M. scaber was improved by partition of an hydroalcoholic extract (X 0 ) in mixture hexane-water 50:50 v/v. Hexanic phase (X 11 ) was more active against C. parapsilosis and C. guilliermondii.

No abstract

L’usage des plantes à des fins thérapeutiques est très ancien. De nos jours encore, elles sont utilisées par une frange partie de la population mondiale. La présente étude avait pour objectif d’étudier les effets toxiques de l'administration subaiguë d'un phytomédicament ivoirien Aphro vendu sur les marchés chez le rat Wistar albinos. Pour ce faire, le phytomédicament Aphro a été administré quotidiennement par voie orale à trois lots de rats, aux doses de 5,75 ; 11,5 et 23 mg/kg de poids corporel et cela pendant 28 jours. Le taux de croissance des rats, les paramètres hématologiques et biochimiques sanguins ont été étudiés. Les résultats de cette étude ont révélé qu’aux doses de 5,75 ; 11,5 et 23 mg/kg de poids corporel, le phytomédicament ne modifie pas de façon significative le taux d’accroissement de la masse corporelle et les paramètres hématologiques constitués du taux de globules rouges, de globules blancs, de plaquettes sanguines et le taux d’hémoglobine. Par ailleurs, des marqueurs hépatiques et lipidiques sériques des rats traités n'ont pas été perturbés par l’administration du phytomédicament comparativement au lot témoin. En revanche, la créatinine, l’un des marqueurs rénaux étudiés a connu une augmentation significative (p < 0,05) chez les rats traités avec le phytomédicament aux doses de 11,5 et 23 mg/kg de poids corporel par rapport au lot témoin. Cette étude a permis de montrer que l’usage prolongé et à doses élevées de Aphro pourrait entraîner des effets nocifs sur les reins.   English title: Assessment of the toxicity of an ivoirian natural aphrodisiac (aphro) on rat The use of plants for therapeutic purposes is very old. Even today, they are used by a part of the world population. The objective of the present study was to evaluate the toxic effects of the subacute administration of an ivorian phytomedicine Aphro sold in the markets in the albino Wistar rat. To do this, the phytomedicine Aphro was administered orally daily to three batches of rats, at doses of 5.75; 11.5 and 23 mg/kg of body weight for 28 days. Rats' growth rate, blood haematological and biochemical parameters were studied. The results of this study showed that at doses of 5.75; 11.5 and 23 mg/kg of body weight, the phytomedicine does not significantly modify the rate of increase in body mass and the hematological parameters consisting of the level of red blood cells, white blood cells, blood platelets and the level hemoglobin. Furthermore, hepatic and serum lipid markers of the treated rats were not disturbed by the administration of the phytomedicine compared to the control group. In contrast, creatinine, one of the renal markers studied, experienced a significant increase (p <0.05) in rats treated with the phytomedicine at doses of 11.5 and 23 mg / kg of body weight compared to the batch witness. This study showed that prolonged use and in high doses of Aphro could cause harmful effects on the kidneys.