ABSTRACT
Introduction:Sacoglottis gabonensis (Baille) Urban (Humiriaceae) is a medicinal plant used in the treatment of Buruli ulcer in Ivory Coast. To ensure its effect over along period of use, the subchronic toxicity of the total aqueous extract of S. gabonensisstem bark (ETASg) in rats was evaluated.Methods:80 rats were homogeneously distributed in 4 lots of 20 rats each, including 10 males and 10 females. ETASg was administered daily orally for 90 days for 2 mL/100 g body weight (b.w.) rats at doses of 3.5; 35 and 350 mg/kg b.w. The control group received distilled water. A venous blood sample is taken every 30 days for 90 days to determine serum biochemical parameters Results:The study showed that ETASg did not influence serum biochemical markers at the therapeutic dose of 3.5 mg/kg b. w. significant increases in ASAT serum activity, ALT, PAL, and LDH in rats tested at 35 and 350 mg/kg b. w. was found on the 60th and 90th days. Administration of ETASg did not affect most of the metabolites and electrolytes studied at doses of 3.5; 35 and 350 mg/kg b. w. After 30 days of discontinuing oral administration of ETASg, the increase observed at the 350 mg/kg b. w. is moderate and reversible.Conclusion:This study revealed that ETASg is nontoxic for biochemical parameters, at doses of 3.5; 35 and 350 mg/kg b. w. during 90 days of administration in rats
ABSTRACT
This study was conducted to assess the effect of the ethyl acetate fraction (AcEF1) obtained from the 96% extract of Morinda morindoides extract on cardiac tissue integrity and function in rabbits. Methodology: The rabbits were divided in five groups of 6 rabbits each. Groups 2,3,4 and 5 received intraperitoneally, twice a week during four weeks, the ethyl acetate fraction at doses going from 25 to 100 μg/kg body weight while Group 1, received 1 mL of Mac Ewen fluid. Blood sampling was carried out to evaluate aspartate aminotransferase (AST), alanine aminotransferase (ALT), Creatine phosphokinase (CPK), Lactate dehydrogenase (LDH) activities and level of calcium, sodium, potassium, magnesium and chloride in serum. The eighth week of the experiments, histopathological studies were also conducted on rabbits heart. Results: Analysis of the serum markers showed slight increases in AST, ALT, CPK activities as well as sodium, calcium and potassium concentrations (p<0.05). LDH activity, magnesium and chloride concentrations were unchanged compared to their initial values. Histopathological studies had not revealed damages in the structure of the heart. Conclusion: The ethyl acetate fraction did not exert any noxious effect on cardiac tissues and should be no toxic for cardiac tissues.