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dc.contributor.authorAriani, Cristinaen_UK
dc.contributor.authorJuneja, Punitaen_UK
dc.contributor.authorSmith, Sophiaen_UK
dc.contributor.authorTinsley, M Cen_UK
dc.contributor.authorJiggins, Francis Men_UK
dc.description.abstractMosquitoes are one of the most important vectors of human disease. The ability of mosquitoes to transmit disease is dependent on the age structure of the population, as mosquitoes must survive long enough for the parasites to complete their development and infect another human. Age could have additional effects due to mortality rates and vector competence changing as mosquitoes senesce, but these are comparatively poorly understood. We have investigated these factors using the mosquito Aedes aegypti and the filarial nematode Brugia malayi. Rather than observing any effects of immune senescence, we found that older mosquitoes were more resistant, but this only occurred if they had previously been maintained on a nutrient-poor diet of fructose. Constant blood feeding reversed this decline in vector competence, meaning that the number of parasites remained relatively unchanged as mosquitoes aged. Old females that had been maintained on fructose also experienced a sharp spike in mortality after an infected blood meal ("refeeding syndrome") and few survived long enough for the parasite to develop. Again, this effect was prevented by frequent blood meals. Our results indicate that old mosquitoes may be inefficient vectors due to low vector competence and high mortality, but that frequent blood meals can prevent these effects of age.en_UK
dc.relationAriani C, Juneja P, Smith S, Tinsley MC & Jiggins FM (2015) Vector competence of Aedes aegypti mosquitoes for filarial nematodes is affected by age and nutrient limitation. Experimental Gerontology, 61, pp. 47-53.
dc.rightsThis item has been embargoed for a period. During the embargo please use the Request a Copy feature at the foot of the Repository record to request a copy directly from the author. You can only request a copy if you wish to use this work for your own research or private study. Published in Experimental Gerontology by Elsevier; Elsevier believes that individual authors should be able to distribute their AAMs for their personal voluntary needs and interests. However, deposit in, or posting to, subject-oriented or centralized repositories (such as PubMed Central), or institutional repositories with systematic posting mandates is permitted only under specific agreements between Elsevier and the repository, agency or institution, and only consistent with the publisher’s policies concerning such repositories.en_UK
dc.subjectBrugia malayien_UK
dc.subjectRefeeding syndromeen_UK
dc.titleVector competence of Aedes aegypti mosquitoes for filarial nematodes is affected by age and nutrient limitationen_UK
dc.typeJournal Articleen_UK
dc.rights.embargoreason[Ariani et al 2014 author pdf.pdf] Publisher requires embargo of 12 months after formal publication.en_UK
dc.citation.jtitleExperimental Gerontologyen_UK
dc.type.statusAM - Accepted Manuscripten_UK
dc.contributor.affiliationUniversity of Cambridgeen_UK
dc.contributor.affiliationUniversity of Cambridgeen_UK
dc.contributor.affiliationUniversity of Cambridgeen_UK
dc.contributor.affiliationBiological and Environmental Sciencesen_UK
dc.contributor.affiliationUniversity of Cambridgeen_UK
rioxxterms.apcnot requireden_UK
rioxxterms.typeJournal Article/Reviewen_UK
local.rioxx.authorAriani, Cristina|en_UK
local.rioxx.authorJuneja, Punita|en_UK
local.rioxx.authorSmith, Sophia|en_UK
local.rioxx.authorTinsley, M C|0000-0002-7715-1259en_UK
local.rioxx.authorJiggins, Francis M|en_UK
local.rioxx.projectInternal Project|University of Stirling|
local.rioxx.filenameAriani et al 2014 author pdf.pdfen_UK
Appears in Collections:Biological and Environmental Sciences Journal Articles

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