Listar IBBA - Instituto Boliviano de Biología de la Altura por autor "Tibayrenc, M"
Mostrando ítems 21-29 de 29
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Linkage disequilibrium in natural populations of Trypanosoma cruzi (Flagellate), the agent of Chagas'disease
Zhang, Qifa; Tibayrenc, M; Ayala, FJ (J. Protozool., 1988)ABSTRACT. We have studied linkage disequilibrium in natural populations of Trypanosoma cruzi, the agent of Chagas' disease, by analyzing (i) a set of 524 stocks from the whole geographical range of the ... -
Metric differences between silvatic and domestic Triatoma infestans (Heteroptera: Reduviidae) in Bolivia
Dujardin, JP; Bermudez, H; Casini, C; Schofield, CJ; Tibayrenc, M (Med Entomol, 1997)Abstract. One hundred and fifty-seven specimens of Bolivian Triatoma infestans (Klug 1834), including 44 from the silvatic focus at Cochabamba (Bolivia), were compared using morphometric characters of the head capsule. ... -
New electrophoretic evidence of genetic variation and diploidy in Trypanosoma cruzi, the causative agent of Chagas' disease
Tibayrenc, M; Cariou, ML; Solignac, M; Dedet, JP; Poch, O; Desjeux, P (Genética, 1985)Abstract. By changing clcctrophoretic conditions additional genetic variability was observed in both previously and newly analysed enzymatic systemes in Trypanosoma cruzi . Inferences the quaternary structure of enzymes ... -
Population genetics of Trypanosoma cruzi and Trypanosoma rangeli : taxonomical and epidemiological purpose
Brenière, SF; Bosseno, MF; Barnabé, C; Urdaneta-Morales, S; Tibayrenc, M (Biol Res, 1993)A genetic analysis of a set of Trypanosoma cruzi and Trypanosoma rangeli stocks was performed by two combined approaches, namely mutilocus enzyme electrophoresis (MLEE) and labeling by DNA probes. A considerable genetic ... -
Population structure of Andean Triatoma infestans : allozyme frequencies and their epidemiological relevance
Dujardin, JP; Schofield, CJ; Tibayrenc, M (Medical and Veterinary Entomology, 1998)Abstract. Triatoma infestans (Hemiptera: Reduviidae) from 22 Andean localities in Bolivia (n = 968) and Peru (n=37) were analysed by multi-locus enzyme electrophoresis. Among 12 gene-enzyme systems analysed, GPD, 6GPD and ... -
The microdistribution of isoenzymic strains of Trypanosoma cruzi in southern Bolivia; new isoenzyme profiles and further arguments against Mendelian sexuality
Tibayrenc, M; Echalar, L; Dujardin, JP; Poch, O; Desjeux, P (Transactions of The Royal Society of Tropical Medicine and Hygiene, 1984)Abstract. 132 Trypanosoma cruzi stocks were collected in southern Bolivia (99 stocks in Tupiza, 33 in Tarija), and were characterized using five enzymes (six loci). From these 132 stocks, a sample of 21 was studied using ... -
Trypanosoma cruzi : a pharmacological comparison of some Bolivian isoenzymic strains
Barnabe, C; Tibayrenc, M; Dujardin, JP (Ann. Soc. Belge Med. Trop., 1983)Summary . The drug susceptibility of 3 isoenzymic strains of Trypanosoma cruzi was studied. Two drugs (SQ 18, 506 and Ro 7-1051) and 6 stocks were used. The drug test was carried out on epimastigote cultures. Significant ... -
Trypanosoma cruzi : measurement of DNA quantity in different isoenzymic strains. Inferences on the ploidy of these strains
Lemesre, JL; Tibayrenc, M (Ann. Soc. Belge Med. Trop., 1983)Summary. The DNA quantity in different isoenzymic strains of Trypanosoma cruzi appears to be the same among these strains. This seems to indicate that these strains have the same ploidy. Genetic distances may be used for ... -
Trypanosoma cruzi populations : more clonal than sexual
Tibayrenc, M; Ayala, FJ (Parasitology Today, 1987-06)The ancient guestion of trypanosome sexuality has recently been reactivated in view of important observations in the African species Trypanosoma brucie, in which Mendelian sexuality has been proposed as o working hypothesis ...