Author | dc.contributor.author | Estay Olea, Daniela | |
Author | dc.contributor.author | Correa, Juana | |
Author | dc.contributor.author | Bona, Sophie de | |
Author | dc.contributor.author | Bacigalupo, Antonella | |
Author | dc.contributor.author | Quiroga, Nicol | |
Author | dc.contributor.author | San Juan, Esteban | |
Author | dc.contributor.author | Solari Illescas, Aldo | |
Author | dc.contributor.author | Botto Mahan, Carezza | |
Admission date | dc.date.accessioned | 2020-11-11T22:20:33Z | |
Available date | dc.date.available | 2020-11-11T22:20:33Z | |
Publication date | dc.date.issued | 2020 | |
Cita de ítem | dc.identifier.citation | Acta Tropica 210 (2020) 105574 | es_ES |
Identifier | dc.identifier.other | 10.1016/j.actatropica.2020.105574 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/177668 | |
Abstract | dc.description.abstract | Hematophagous insects exhibit complex behaviour when searching for blood-meals, responding to several host stimuli. The hematophagous insect Mepraia spinolai is a wild vector of Trypanosoma cruzi, causative agent of Chagas disease in humans, in the semiarid-Mediterranean ecosystem of Chile. In this study, we evaluated the association between the approaching behaviour to a human host, with T. cruzi infection status and nutritional condition of M. spinolai. To this end, we captured 501 individuals in six consecutive 10 min-timespan, using a human as bait. Captured vectors were weighed, photographed and measured to calculate their nutritional status by means of a Standardized Body Mass Index. Trypanosoma cruzi infection was assessed in the intestinal content by using a real-time PCR assay. Ordinal logistic regressions were performed separately for infected and uninfected groups to evaluate if the nutritional status was associated with the approaching behaviour to a human host, recorded as the time-span of capture. Nutritional status of uninfected triatomines was higher than that from infected ones (p < 0.005). Among the infected, those with higher nutritional status approached first (p < 0.01); there was no effect of nutritional status in the uninfected group. Trypanosoma cruzi infection might affect the foraging behaviour of M. spinolai under natural conditions, probably deteriorating nutritional status and/or altering vector detection abilities. | es_ES |
Patrocinador | dc.description.sponsorship | Fondo Nacional de Desarrollo Cientifico y Tecnologico (ANID-FONDECYT)
1170367
ANID-FONDECYT
1190392
11181182
Comision Nacional de Investigacion Cientifica y Tecnologica (CONICYT) Master Fellowships
22180694
22190109
Agencia Nacional de Investigacion y Desarrollo (ANID)/Programa Becas/Doctorado Becas Chile 2019
72200391 | es_ES |
Lenguage | dc.language.iso | en | es_ES |
Publisher | dc.publisher | Elsevier | es_ES |
Source | dc.source | Acta Tropica | es_ES |
Keywords | dc.subject | Mepraia spinolai | es_ES |
Keywords | dc.subject | Behavior | es_ES |
Keywords | dc.subject | Body mass index | es_ES |
Keywords | dc.subject | Chagas disease | es_ES |
Keywords | dc.subject | Triatominae | es_ES |
Título | dc.title | Trypanosoma cruzi could affect wild triatomine approaching behaviour to humans by altering vector nutritional status: a field test | es_ES |
Document type | dc.type | Artículo de revista | es_ES |
dcterms.accessRights | dcterms.accessRights | Acceso abierto | es_ES |
Cataloguer | uchile.catalogador | crb | es_ES |
Indexation | uchile.index | Artículo de publicación ISI | |
Indexation | uchile.index | Artículo de publicación SCOPUS | |