Characterization of Paraguayan Trypanosoma cruzi strains isolated from acute patients of Chagas disease.
Five Paraguayan Trypanosoma cruzi strains, isolated from acute chagasic patients, were studied by their behavior in BALB/c mice, metacyelogenesis, bio-metry of metacyclic forms and lectin agglutination. Early and intermediate parasitemic peaks were observed and the strains did not show high virulence. Metacyclogenesis capacity was not higher than 50% in all cases and there were no considerable differences in the biometry. They all belong to WGA-type strains according to the lectin agglutination assays except for one strain that agglutinated with WGA and PNA lectins. Although previous schizodeme analysis of these strains showed rather homogeneous profiles, biological features were quite heterogeneous.
Instituto de Investigaciones en Ciencias de la Salud, Universidad Nacional de Asunción, Paraguay.
N
N
Acosta
M
M
Maldonado
L
L
Sanabria
G
G
Yaluff
S
S
Fuentes
S
S
Torres
M E
ME
Ferreira
A
A
Rojas de Arias
T
T
Shozawa
D000372:Agglutination Tests; D000818:Animals; D014355:Chagas Disease / Q000453:epidemiology / Q000469:parasitology*; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D037102:Lectins; D008297:Male; D051379:Mice; D008807:Mice, Inbred BALB C; D008875:Middle Aged; D009024:Morphogenesis; D010239:Paraguay / Q000453:epidemiology; D018512:Parasitemia; D014349:Trypanosoma cruzi / Q000145:classification / Q000166:cytology / Q000276:immunology / Q000502:physiology*
D037102:Lectins