1. Antimalarial activity of the aqueous extract of Euphorbia cordifolia Elliot in Plasmodium berghei-infected mice
Raceline Gounoue KAMKUMO ; Jaures Marius Tsakem NANGAP ; Florence Ngueguim TSOFACK ; Theophile DIMO ; Lauve Rachel Tchokouaha YAMTHE ; Patrick Valere Tsouh FOKOU ; Mariscal Brice Tchatat TALI ; Fabrice Fekam BOYOM
Asian Pacific Journal of Tropical Medicine 2020;13(4):176-184
Objective: To evaluate the antimalarial activity of the aqueous extract of Euphorbia (E.) cordifolia Elliot against Plasmodium (P.) berghei-infected mice. Methods: Thirty healthy Swiss mice were intraperitoneally inoculated with 200 μL of P. berghei parasitized-erythrocytes and divided into five groups, and then daily treated for 5 d with single dose of 10 mL/kg of distilled water for malaria control, 10 mg/kg of chloroquine for the chloroquine control and 100, 200 and 400 mg/kg of the aqueous extract of E. cordifolia for the three test groups. Parasitaemia was monitored by Giemsa-staining. At the end of the treatment, animals were sacrificed, and blood was collected for haematological and biochemical analyses. Organs were collected for biochemical and histopathological analyses. Statistical significance (P<0.05) was evaluated by analysis of variance followed by the Tukey post-test using Graphpad prism 7.0. Results: E. cordifolia extract decreased the parasite load to 2.46%, with an effective dose (ED
2.Hypolipidemic and anti-atherosclerogenic effects of aqueous extract of Ipomoea batatas leaves in diet-induced hypercholesterolemic rats.
Fidele NTCHAPDA ; Fernand C TCHATCHOUANG ; David MIAFFO ; Barthelemy MAIDADI ; Lorella VECCHIO ; Rodrigue E TALLA ; Christian BONABE ; Paul F SEKE ETET ; Theophile DIMO
Journal of Integrative Medicine 2021;19(3):243-250
OBJECTIVE:
Ipomoea batatas (L.) Lam. is a food plant used in African traditional medicine to treat cardiovascular diseases and related conditions. We assessed the hypolipidemic and anti-atherosclerogenic properties of the aqueous extract of I. batatas leaves in a rat model of diet-induced hypercholesterolemia.
METHODS:
Hypercholesterolemia was induced in male Wistar rats by exclusive feeding with a cholesterol-enriched (1%) standard diet for four weeks. Then, rats were treated once daily (per os) with I. batatas extract at doses of 400, 500 and 600 mg/kg or with atorvastatin (2 mg/kg), for four weeks. Following treatment, animals were observed for another four weeks and then sacrificed. Aortas were excised and processed for histopathological studies, and blood glucose level and lipid profile were measured.
RESULTS:
Hypercholesterolemic animals experienced a 21.5% faster increase in body weight, significant increases in blood glucose and blood lipids (148.94% triglycerides, 196.97% high-density lipoprotein cholesterol, 773.04% low-density lipoprotein cholesterol, 148.93% very low-density lipoprotein cholesterol and 210.42% total cholesterol), and increases in aorta thickness and atherosclerotic plaque sizes compared to rats fed standard diet. Treatment of hypercholesterolemic rats with the extract mitigated these alterations and restored blood glucose and blood lipid levels to normocholesterolemic values.
CONCLUSION
Our findings suggest that I. batatas leaves have hypolipidemic and anti-atherosclerogenic properties and justify their use in traditional medicine.