Fig. 4From: Toxicological evaluations of betulinic acid and ursolic acid; common constituents of Houttuynia cordata used as an anthelmintic by the Naga tribes in North-east IndiaHeart histological sections of rats in sub-acute toxicity study. a Normal control group; b 10 mg/kg BA-treated group; c 10 mg/kg UA-treated group; d 50 mg/kg APAP-treated group (× 25, H&E stained). CM—cardiac muscle, M—myocytes, V—vacuolesBack to article page