Hypoglycemic and antihyperglycemic activities of the aqueous ethanolic extracts of Gymnema sylvestre (RETZ) R. Br. Ex SCHULT and Sclerocarya birrea (A RICH) HOCHSTEstelle Noëla Hoho YOUL, Sonia Nassouri , Sonia Ilboudo , Moussa Ouédraogo , Charles B. Sombié , Sylvain Ilboudo , Zéphirin P. Dakuyo and Innocent P. Guissou |