Listar Producción científica por autor "Tibayrenc, M"
Mostrando ítems 1-20 de 29
-
A genetic comparison between Brazilian and Bolivian zymodemes of Trypanosoma cruzi
Tibayrenc, M; Miles, MA (Transactions of The Royal Society of Tropical Medicine and Hygiene, 1983)Abstract. The enzyme profiles of three major Brazilian Trypanosoma cruzi zymodemes (Brazilian Z1, Brazilian Z2, Brazilian Z3) and of two principal Bolivian zymodemes were compared. Relationships were assessed both ... -
Addional data on Trypanosoma cruzi isozymic strains encountered in Bolivian domestic transmission cycles
Tibayrenc, M; Hoffmann, A; Poch, O; Echalar, L; Le Pont, F; Lemesre, JL; Desjeux, P (Transantions of The Royal Society of Tropical Medicine and Hygiene, 1986)Abstract. We have collected in Bolivia 212 stocks of Trypanosoma cruzi from domestic transmission cycles and have assayed for nine enzyme systems (11 gene loci). Only a few different isozyme profiles exist, without ... -
Association between Trypanosoma cruzi zymodemes and specific humoral depression in chronic chagasic patients
Brenière, SF; Carrasco, R; Antezana, G; Desjeux, P; Tibayrenc, M (Transantions of The Royal Society of Tropical Medicine and Hygiene, 1989) -
Bolivian phlebotomines. II. Psychodopygus yucumensis n.sp., a new man-biting phlebotomine sandfly from subandean region (Diptera, Psychodidae)
Le Pont, F; Caillard, T; Tibayrenc, M; Desjeux, P (Mem. Inst. Oswaldo Cruz, 1986)Psychodopygus yucumensis n. sp., a new species of Phlebotomine sandfly belonging in genus Psychodopygus Mang., is described from specimens collected from human bait, in Beni dept., Bolivia. The male is ... -
Copy number differences in the 195 BP repeated satellite DNA from Trypanosoma cruzi and Trypanosoma rangeli : potential use for epidemiologic surveys
Brenière, SF; Bosseno, MF; Barnabé, C; Urdaneta-Morales, S; Tibayrenc, M (Mem. Inst. Oswaldo Cruz, 1993)Trypanosoma cruzi, the agent of Chagas' disease, and the apparently non-pathogenic species Trypanosoma rangeli can be both encountered in human and in the same mammiferous hosts. On fresh isolates, the discrimination between ... -
Cryptic speciation in Lutzomyia (Nyssomyia) Trapidoi (Fairchild & Hertic) (Diptera: Psychodidae) detected by multilocus enzyme electrophoresis
Dujardin, JP; Le Pont, F; Cruz, M; Leon, R; Tarrieu, F; Guderian, R; Echeverria, R; Tibayrenc, M (Am. J. Trop Med. Hyg., 1996)Abstract Lutzomyia trapidoi is the major vector of cutaneous leishmaniasis in Ecuador. In the framework of an epidemiologic study, female Lu. trapidoi sand flies were captured on human bait in La Tablada and Paraiso ... -
Diagnosis by isozyme methods of two cryptic species, Psychodopygus carrerai and P. Yucumensis (Diptera: Psychodidae)
Caillard, T; Tibayrenc, M; Le Pont, F; Dujardin, JP; Desjeux, P; Ayala, FJ (J. Med. Entomol., 1986)Abstract. Eleven enzyme systems were used to compare 2 cryptic species previously treated as Psychodopygus carrerai. Two enzyme systems were each completely diagnostic. Three other loci gave evidence of reproductive ... -
Direct identification of Trypanosoma cruzi natural clones in vectors and mammalian hosts by polymerase chain reaction amplification
Brenière, SF; Bosseno, MF; Revollo, S; Rivera Bedoya, MT; Carlier, Y; Tibayrenc, M (Am. J. Trop. Med. Hyg., 1992)Abstract. The polymerase chain reaction was used to amplify the highly variable region of the kinetoplast minicircle of Trypanosoma cruzi directly in biological samples (feces of infected Triatomine bugs, blood samples ... -
Enzymatic variability and phylogenetic relatedness among Triatoma infestans, T. platensis, T. delpontei and T. rubrovaria
Pereira, J; Dujardin, JP; Salvatella, R; Tibayrenc, M (Heredity, 1996)Four congeneric species of triatomine bugs, Triatoma platensis, T. delpontei, T. rubrovaria and T. infestans, were examined by multilocus enzyme electrophoresis. These four species are distributed sympatrically throughout ... -
Estudios isoenzimáticos y de DNA de poblaciones de Trypanosoma Rangeli y Trypanosoma cruzi permiten diferenciar los dos taxones
Brenière, SF; Bosseno, MF; Barnabe, C; Yacsik, N; Le Ray, D; Tibayrenc, M (Acta Andina, 1993) -
Étude de 11 enzymes et données de génétique formelle pour 19 loci enzymatiques chez Triatoma infestans (Hemiptera: Reduviidae)
Dujardin, JP; Tibayrenc, M (Ann. Soc. Belge Med. Trop., 1985)Résumé. Onze enzymes ont été analysées par électrophorèse sur acétate de cellulose chez Triatoma infestans (Klug. 1834), vecteur principal de la maladie de Chagas. Ces onze enzymes correspondent au moins á 19 loci, dont ... -
General classification of the isoenzymic strains of Trypanosoma (Schizotrypanum) cruzi and comparison with T. (S.) C. Marinkellei and T. (Herpetosoma) rangeli
Tibayrenc, M; Le Ray, D (Ann. Soc. Belge Med. Trop., 1984)Summary. Thirteen laboratory reference stocks of Trypanosoma (Schizottypanum) cruzi were classified according to genetic distance by enzyme analysis of 14 loci. Three principal isoenzymic strains were recognized together ... -
Isoenzymes as a tool for the identification of Rhodnius species (Hemiptera: reduviidae: Triatominae)
Solano, P; Dujardin, JP; Schofield, CJ; Romana, C; Tibayrenc, M (Research and Reviews in Parasitology, 1996)ABSTRACT. Some species of Rhodnius prove difficult to separate on overt morphological characters. leading to difficulties in determining the current distribution of several of the most epidemiologically significant species. ... -
Isozyme evidence of lack of speciation between wild and domestic triatoma infestans (Heteroptera: reduviidae) in Bolivia
Dujardin, JP; Tibayrenc, M; Venegas, Enrique; Maldonado, L; Desjeux, P; Ayala, FJ (J. Med. Entomol., 1987-01)Abstract . Wild and domestic Triatoma infestans from the Cochabamba region of Bolivia were virtually identical at l9 gene loci coding for enzymes. No allele was distinctive of either the wild or the domestic populations. ... -
Isozymic studies and epidemiological data of Trypanosoma cruzi from Arequipa (Perú), Pacific side
Brenière, SF; Llanos, B; Tibayrenc, M; Desjeux, P (Ann. Soc. Belge Med. Trop., 1985)Summary. The authors present some epidemiological data (infestation rates for houses and triatomine vectors) concerning Chagas' disease in Arequipa region (Peru). lsoenzymic analysis of 39 Trypanosoma cruzi stocks from ... -
Isozymic variability of Trypanosoma cruzi : biological and epidemiological significance
Tibayrenc, M; Brenière, F; Barnabe, C; Lemesre, JL; Echalar, L; Desjeux, P (Ann. Soc. Belge Med. Trop., 1985)Summary. Genetic interpretation of. T. cruzi zymograms has led to various hypotheses which are reviewed. -
Las leishmania de Bolivia : II Leismania chagasi s.l., primeros aislamientos en los "Yungas" del departamento de La Paz, comparación isoenzimática de las cepas aisladas de un caso humano autóctono, de perros y del flebótomo Lutzomyia longipalpis
Desjeux, P; Le Pont, F; Mollinedo, S; Tibayrenc, M (Instituto Boliviano de Biología de la Altura, 1983)Resumen. Un foco de leishmaniasis visceral ha sido descubierto en los Yungas del Departamento de La Paz. El primer caso humano autóctono ha podido detectarse en 1982 en dicha zona. La infección cutánea y visceral del ... -
Las leishmania de Bolivia I : Leishmania braziliensis en los departamentos de La Paz y Beni. Primeros aislamientos de cepas humanas y su caracterización enzimática
Desjeux, P; Le Pont, F; Mollinedo, S; Tibayrenc, M (Instituto Boliviano de Biología de la Altura, 1983)Resumen. Los autores efectuaron el estudio clínico, serológico y parasitológico en pacientes procedentes de diferentes zonas donde existe leishmaniasis cutánea y cutáneo-mucosa humana de los Departamentos de La Paz y del ... -
Les Leishmania de Bolivie. I. Leishmania braziliensis Vianna, 1911 dans les départements de La Paz et du Béni : premiers isolements de souches d'origine humaine. Caractérisation enzymatique
Desjeux, P; Le Pont, F; Mollinedo, S; Tibayrenc, M (Colloque Intern., 1986)RÉSUMÉ. Les auteurs ont réalisé l'étude clinique, sérologique et parasitologique de patients provenant de différents foyers de leishmaniose cutanée et cutanéo-muqueuse humaine des départements de La Paz et du Béni. ... -
Les Leishmania de Bolivie. II. Leishmania chagasi Cunha et Chagas, 1937. Premiers isolements dans les "Yungas" du Département de La Paz. Comparaison isoenzymatique de souches de l'Homme, du Chien et du Phlébotome Lutzomyia longipalpis (Luts et Neiva, 1912)
Desjeux, P; Le Pont, F; Mollinedo, S; Tibayrenc, M (Colloque Intern., 1986)RÉSUMÉ. Un foyer de leishmaniose viscérale a été mis en évidence dans les Yungas du Département de La Paz. Le premier cas humain autochtone a pu étre diagnostiqué en 1982 dans cette région. L'infection cutanée et viscérale ...