Results 31 to 40 of about 21,738 (166)

Levels of Resistance to Pyrethroid among Distinct kdr Alleles in Aedes aegypti Laboratory Lines and Frequency of kdr Alleles in 27 Natural Populations from Rio de Janeiro, Brazil

BioMed Research International, Volume 2018, Issue 1, 2018., 2018
Background. Several mutations in voltage gated sodium channel (NaV) have been identified in Aedes aegypti populations worldwide. However, only few are related to knockdown resistance to pyrethroids, most of which with variations in the 1016 and 1534 NaV sites.
Luiz Paulo Brito, Luana Carrara, Rafael Maciel de Freitas, José Bento Pereira Lima, Ademir J. Martins, Gelin Xu   +5 more
wiley   +1 more source

Dietary Influences on the Longevity and Reproductive Success of Anopheles aquasalis in Laboratory Studies: Sucrose vs. Honey

Insects
Malaria continues to be a major public health challenge in tropical and subtropical regions. Anopheles aquasalis, a key laboratory model for malaria research, plays a critical role in the study of vector–parasite interactions. Although vector life traits
Fernanda Oliveira Rezende, Dimas Augusto da Silva, Sara Comini, Silvana de Mendonça, Ellen Santos, Lívia Baldon, Bruno Marçal, Amanda Cupertino de Freitas, Rafaela Moreira, Viviane Sousa, Mariana Lima, Marcele Rocha, Luciano A. Moreira, Alvaro Ferreira   +13 more
doaj   +1 more source

The impact of Wolbachia infection on the rate of vertical transmission of dengue virus in Brazilian Aedes aegypti

Parasites & Vectors, 2017
Background Wolbachia pipientis is a common endosymbiotic bacterium of arthropods that strongly inhibits dengue virus (DENV) infection and transmission in the primary vector, the mosquito Aedes aegypti. For that reason, Wolbachia-infected Ae.
Etiene Casagrande Pacidônio, Eric Pearce Caragata, Debora Magalhães Alves, João Trindade Marques, Luciano Andrade Moreira   +4 more
doaj   +1 more source

Genetic structure and kdr mutations in Aedes aegypti populations along a road crossing the Amazon Forest in Amapá State, Brazil

Scientific Reports, 2023
Insecticide resistance in Aedes aegypti poses a significant threat to disease control. One form of resistance, caused by kdr mutations in the Na V gene, hinders vector control efforts in Brazil.
Barbara S. Souza, Leticia F. Lima, Allan K. R. Galardo, Vincent Corbel, Jose Bento P. Lima, Ademir J. Martins   +5 more
doaj   +1 more source

Fluctuating asymmetry in spider‐hunting wasps as a possible indicator of stress in Brazilian Atlantic Forest landscapes Assimetria flutuante em vespas caçadoras de aranhas como possível indicador de estresse em paisagens da Mata Atlântica brasileira

Ecological Entomology, Volume 51, Issue 3, Page 558-569, June 2026.
Agricultural cover was positively associated with fluctuating asymmetry in Trypoxylon opacum, suggesting a possible increase in developmental instability in intensively managed landscapes. Wing size was positively related to forest cover and negatively related to agricultural cover, indicating that forested landscapes may promote larger body size ...
Luana Vieira Carlin dos Santos, Jean Pablo Alves de Deus, Milton Cezar Ribeiro, Maria Luisa Tunes Buschini   +3 more
wiley   +1 more source

Host‐Parasite Interactions in Individuals with Type 1 and 2 Diabetes Result in Higher Frequency of Ascaris lumbricoides and Giardia lamblia in Type 2 Diabetic Individuals

Journal of Diabetes Research, Volume 2018, Issue 1, 2018., 2018
Host‐parasite interactions in diabetic patients might influence diabetes complications and intestinal parasitosis. The aim was to investigate the occurrence of enteroparasites in individuals with diabetes types 1 and 2. A descriptive study was designed to estimate frequencies of parasites and to compare them in individuals with diabetes types 1 and 2 ...
Eleuza Rodrigues Machado, Núbia Oliveira Matos, Sinione Morais Rezende, Daniela Carlos, Thauana Cristina Silva, Leônia Rodrigues, Maria Jarlene Rodrigues Almeida, Maria Regina Fernandes de Oliveira, Maria Imaculada Muniz-Junqueira, Rodrigo Gurgel-Gonçalves, Marco Songini   +10 more
wiley   +1 more source

Rapidly declining seagrass meadows in Brazil: Findings from satellite imagery and local knowledge

People and Nature, Volume 8, Issue 5, Page 1155-1171, May 2026.
Abstract Due to the limitations of individual monitoring approaches, integrating social perceptions with multiple advanced technologies provides a new opportunity to gain a comprehensive understanding of ecosystem degradation. We combined historical aerial mapping, satellite imagery, semi‐structured interviews with local stakeholders, and a bilingual ...
Karine Matos Magalhães, Emma Deeks, Aline da Silva Cerqueira, Gabriel Henrique Ferreira Silva, Fabiana Aguiar Santos, Terry Dawson, Pavel Kratina   +6 more
wiley   +1 more source

Lutzomyia longipalpis TGF-β Has a Role in Leishmania infantum chagasi Survival in the Vector

Frontiers in Cellular and Infection Microbiology, 2019
Despite the increasing number of studies concerning insect immunity, Lutzomyia longipalpis immune responses in the presence of Leishmania infantum chagasi infection has not been widely investigated. The few available studies analyzed the role of the Toll
Tatiana Di-Blasi, Erich Loza Telleria, Erich Loza Telleria, Christiane Marques, Rodrigo de Macedo Couto, Monique da Silva-Neves, Magdalena Jancarova, Petr Volf, Antonio Jorge Tempone, Yara Maria Traub-Csekö   +9 more
doaj   +1 more source

First record of Trypanosoma evansi DNA in Dichelacera alcicornis and Dichelacera januarii (Diptera: Tabanidae) flies in South America

Parasites & Vectors, 2023
Background Trypanosoma evansi infects a large number of wild and domestic animals and causes a spoliative disease known as surra. It is mechanically transmitted, mainly by biting flies of the genera Tabanus and Stomoxys. The detection of T. evansi DNA in
Carlos José Raupp Ramos, Cintia de Souza Franco, Sabrina Pogere da Luz, Júlia Marques, Ketriane Mota de Souza, Luiz Flávio Nepomuceno do Nascimento, Gabriella Bassi das Neves, Renato Simões Moreira, Luiz Claudio Miletti   +8 more
doaj   +1 more source

Glycosomal Phosphoenolpyruvate Carboxykinase CRISPR/Cas9‐Deletion and Its Role in Trypanosoma cruzi Metacyclogenesis and Infectivity in Mammalian Host

The FASEB Journal, Volume 40, Issue 6, 31 March 2026.
Effects of PEPCK deficiency in Trypanosoma cruzi bioenergetics and life stages. ABSTRACT Trypanosoma cruzi, the causative agent of Chagas disease, possesses glycosomes—unique organelles that house key metabolic enzymes, several of which are promising therapeutic targets.
Carolina S. D. Vieira, Wei Wang, Fernando Sanchez‐Valdez, Jihyun Lim, Brooke E. White, Camilla G. S. Souza, Rick L. Tarleton, Marcia C. Paes, Natalia P. A. Nogueira   +8 more
wiley   +1 more source