Results 61 to 70 of about 53,338 (196)

Topographic Barriers and Lowland Corridors Structure Gene Flow in the Chagas Vector Rhodnius pallescens Across the Isthmian Forests

Journal of Biogeography, Volume 53, Issue 7, July 2026.
ABSTRACT Aim Biogeographic processes can profoundly shape the connectivity and evolutionary potential of arthropod disease vectors. We investigated how Panama's ecological and topographic transitions structure populations of the kissing bug Rhodnius pallescens, the primary vector of the Chagas disease agent Trypanosoma cruzi in the region.
Juliana Hoyos, Natalia J. Bayona‐Vásquez, Azael Saldaña, Sonia Altizer, Troy J. Kieran, Vanessa Pineda, Kadir Gonzalez, Jose E. Calzada, Travis Glenn, Raissa Nogueira de Brito, Milixa Perea, Adelys Reina, Chystrie Rigg, John Paul Schmidt, Vanessa Vasquez, Susan Tanner, Julie Velásquez Runk, Nicole L. Gottdenker   +17 more
wiley   +1 more source

Genetic Structure and Expression of the Surface Glycoprotein GP82, the Main Adhesin of Trypanosoma cruzi Metacyclic Trypomastigotes

The Scientific World Journal, Volume 2013, Issue 1, 2013., 2013
T. cruzi improves the likelihood of invading or adapting to the host through its capacity to present a large repertoire of surface molecules. The metacyclic stage‐specific surface glycoprotein GP82 has been implicated in host cell invasion. GP82 is encoded by multiple genes from the trans‐sialidase superfamily.
Paulo Roberto Ceridorio Correa, Esteban Mauricio Cordero, Luciana Girotto Gentil, Ethel Bayer-Santos, José Franco da Silveira, S. Amaral Gonçalves da Silva, P. M. L. Dutra, P. Grellier, J. Martins de Santana   +8 more
wiley   +1 more source

Verificação de flagelados semelhantes ao Trypanosoma rangeli Tejera, em Rhodnius prolixus alimentados em caso de doença de Chagas na Venezuela: considerações sobre a natureza deste protozoário

Memorias do Instituto Oswaldo Cruz, 1943
1) - Por inoculação do sangue de um caso agúdo de moléstia de Chagas de Zaraza, Guárico, Venezuela, em cobaia (12-11-1940), obteve-se um Schizotrypanum com caractéres morfológicos distintos dos das amostras humanas comuns do Schizotrypanum cruzi; seu ...
Emmanuel Dias, J. F. Torrealba
doaj   +1 more source

Unravelling the biochemical aspects of the interaction between ticks and Leishmania using a tick cell line

Medical and Veterinary Entomology, Volume 40, Issue 2, Page 350-359, June 2026.
Leishmania infantum propagated in IDE8 tick cell line in vitro. L. infantum reduces tick cell viability and induces reactive oxygen species production. Lipidic profile of IDE8 tick cell line is altered during Leishmania infection. Abstract Leishmaniasis comprises a group of vector‐borne neglected tropical diseases caused by species of the obligatory ...
Beatriz Filgueiras Silvestre, Karoline dos Anjos Lima, Fernanda de Paula Pepino, Daniela Cosentino‐Gomes, Adivaldo Fonseca, Lesley Bell‐Sakyi, Georgia Correa Atella, Lucia H. Pinto‐da‐Silva   +7 more
wiley   +1 more source

Effects of Sheep and Mouse Urine on the Growth Pattern of Leishmania major Promastigotes

BioMed Research International, Volume 2013, Issue 1, 2013., 2013
The protozoan parasites of the genus Leishmania are the causative agents of different clinical diseases. Fetal calf serum (FCS) is the main part and the most expensive ingredient of the Leishmania culture media. Here, the efficacies of different concentrations (1%, 2.5%, 5%, and 10%) of the filtered and autoclaved sheep and mouse urine were evaluated ...
Vahid Nasiri, Gholamreza Karimi, Abdolhossein Dalimi, Habibollah Paykari, Fatemeh Ghaffarifar, Terry K. Smith   +5 more
wiley   +1 more source

First report of Rhodnius montenegrensis (Hemiptera: Reduviidae: Triatominae) infection by Trypanosoma rangeli

Revista da Sociedade Brasileira de Medicina Tropical, 2014
Introduction: This study reports for the first time the infection of Rhodnius montenegrensis by Trypanosoma rangeli. Methods: The triatomines were manually collected in Attalea speciosa in the municipality of Buritis, Rondônia.
Dionatas Ulises de Oliveira Meneguetti, Evanildo Bezerra Soares, Marta Campaner, Luis Marcelo Aranha Camargo   +3 more
doaj   +1 more source

Successional and native forests predict the occurrence and infection status of Chagas disease vectors in Panama

Journal of Applied Ecology, Volume 63, Issue 1, January 2026.
Findings here show that successional forest predicts greater kissing bug infestation risk in palm trees, whereas native forest predicts lower kissing bug occurrence but greater infection with T. cruzi. These insights can guide land use planning towards vegetation management practices that help minimize T. cruzi transmission risks for rural communities.
Juliana Hoyos, Azael Saldaña, Sonia Altizer, Vanessa Pineda, Kadir Gonzalez, Jose E. Calzada, Raissa Nogueira de Brito, Susan Tanner, Daniel Mendieta, Alberto Cumbrera, Nicole L. Gottdenker   +10 more
wiley   +1 more source

First Report of Trypanosoma sp. in Spectacled Caiman (Caiman crocodilus): Morphological and Phylogenetic Relationships

International Scholarly Research Notices, Volume 2013, Issue 1, 2013., 2013
In Crocodylidae family three trypanosomes species were described, T. grayi in African crocodilian and T. cecili and Trypanosoma sp. in Caimans species from Brazil. T. grayi was transmitted by tsetse flies and the vector of Brazilian caimans trypanosomes is unknown.
Arlei Marcili, Andrea P. da Costa, Herbert S. Soares, Igor C. L. Acosta, Julia T. R. de Lima, Antonio H. H. Minervino, Solange M. Gennari, D. Cone, A. Jabbar, G. Mkoji, P. Somboon   +10 more
wiley   +1 more source

Estudios sobre Trypanosoma rangeli Tejera, 1920: VIII. Respuesta a las reinfecciones en dos mamíferos Trypanosoma rangeli Tejera, 1920: VIII. Responses to reinfections in 2 mammals

Memorias do Instituto Oswaldo Cruz, 1985
Bajo condiciones experimentales se estudia el curso de la infección primaria y la respuesta a las reinfecciones por Trypanosoma rangeli en ratones albinos y Didelphis marsupialis.
N. Añez, J. Velandia, A. M. Rodríguez
doaj   +1 more source

A Simple and Efficient Stereoselective Synthesis of a 2,3‐Difluorosialic Acid‐Based Influenza Virus Neuraminidase Inhibitor

Chemistry – A European Journal, Volume 31, Issue 16, March 17, 2025.
A new simple approach for the exquisitely stereo‐controlled introduction of the C‐3 equatorial fluorine on neuraminic acid derivatives by incorporation of steric bulk at C‐4. Through this size‐controlled method, we have elaborated a novel synthetic route that exclusively produces the potent anti‐influenza drug candidate; 2,3‐difluoro‐zanamivir analogue
Ibrahim M. El‐Deeb, Mark von Itzstein
wiley   +1 more source