title: Antitrypanosomal activity of Senna villosa in infected BALB/c mice with Trypanosoma cruzi during the sub acute phase of infection.
abstract: Antitrypanosomal activity of chloroform extract of Senna villosa leaves was evaluated in the sub acute phase of mice infected with Trypanosoma cruzi. Oral doses of 3.3, 6.6 and 13.2 µg/g were tested during 15 days on infected mice BALB/c, beginning treatment 40 days after infection to evaluate specifically the antitrypanosomal activity over the amastigote form of the parasite. Two different amount of parasites (100 and 500) were inoculated to 25 mice for each doses tested. At the end of the assay the animals were sacrificed and cardiac and skeletal tissue sections were stained with hematoxylin-eosin (HE) for identification and quantification of amastigote nest. In mice infected with 100 parasites, a significant reduction in the number of amastigote nest was observed in cardiac tissue of treated animals at all doses evaluated (p<0.05). An important reduction of amastigote nest was also observed in treated animals and infected with 500 parasites in comparison with no treated mice or treated with allopurinol.
authors: Laboratorio de Biología Celular, Centro de Investigaciones Regionales Dr. Hideyo Noguchi, Universidad Autonoma de Yucatán, Merida Yucatan, Mexico. mjcoello@uady.mx
authors: Matilde
authors: M
authors: Jimenez-Coello
authors: Eugenia
authors: E
authors: Guzman-Marin
authors: Salud
authors: S
authors: Perez-Gutierrez
authors: Glendy Marilu
authors: GM
authors: Polanco-Hernandez
authors: Karla Yolanda
authors: KY
authors: Acosta-Viana
mesh_terms: D000818:Animals; D014355:Chagas Disease / Q000175:diagnosis / Q000188:drug therapy* / Q000469:parasitology; D004305:Dose-Response Relationship, Drug; D004341:Drug Evaluation; D007887:Fabaceae / Q000737:chemistry*; D051379:Mice; D008807:Mice, Inbred BALB C; D010936:Plant Extracts / Q000494:pharmacology* / Q000627:therapeutic use; D018515:Plant Leaves / Q000737:chemistry; D014344:Trypanocidal Agents / Q000302:isolation & purification / Q000494:pharmacology* / Q000627:therapeutic use; D014349:Trypanosoma cruzi / Q000187:drug effects* / Q000302:isolation & purification
chemical_list: D010936:Plant Extracts; D014344:Trypanocidal Agents