Abstract:
:Trypanosoma cruzi, causative agent of Chagas disease, co-infects its triatomine vector with its sister species Trypanosoma rangeli, which shares 60% of its antigens with T. cruzi. Additionally, T. rangeli has been observed to be pathogenic in some of its vector species. Although T. cruzi-T. rangeli co-infections are common, their effect on the vector has rarely been investigated. Therefore, we measured the fitness (survival and reproduction) of triatomine species Rhodnius prolixus infected with just T. cruzi, just T. rangeli, or both T. cruzi and T. rangeli. We found that survival (as estimated by survival probability and hazard ratios) was significantly different between treatments, with the T. cruzi treatment group having lower survival than the co-infected treatment. Reproduction and total fitness estimates in the T. cruzi and T. rangeli treatments were significantly lower than in the co-infected and control groups. The T. cruzi and T. rangeli treatment group fitness estimates were not significantly different from each other. Additionally, co-infected insects appeared to tolerate higher doses of parasites than insects with single-species infections. Our results suggest that T. cruzi-T. rangeli co-infection could ameliorate negative effects of single infections of either parasite on R. prolixus and potentially help it to tolerate higher parasite doses.
journal_name
Parasitologyjournal_title
Parasitologyauthors
Peterson JK,Graham AL,Elliott RJ,Dobson AP,Triana Chávez Odoi
10.1017/S0031182016000615subject
Has Abstractpub_date
2016-08-01 00:00:00pages
1157-67issue
9eissn
0031-1820issn
1469-8161pii
S0031182016000615journal_volume
143pub_type
杂志文章相关文献
PARASITOLOGY文献大全abstract::Canine leishmaniosis (CanL) is caused by the parasite Leishmania infantum and is a systemic disease, which can present with variable clinical signs, and clinicopathological abnormalities. Clinical manifestations can range from subclinical infection to very severe systemic disease. Leishmaniosis is categorized as a neg...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S003118201600055X
更新日期:2017-01-01 00:00:00
abstract::The cumulative effect of co-infections between pathogen pairs on the haematological response of East African Short-horn Zebu calves is described. Using a longitudinal study design a stratified clustered random sample of newborn calves were recruited into the Infectious Diseases of East African Livestock (IDEAL) study ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182013001625
更新日期:2014-03-01 00:00:00
abstract::The isolation of 2 genomic clones has allowed us to further characterize a Schistosoma mansoni serine protease designated SmSP1. The deduced amino acid sequence (248aa) considered as a 'light chain' encoding the active site, presents significant homologies with mouse plasma kallikrein and human factor I light chain. T...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182098003874
更新日期:1999-04-01 00:00:00
abstract::The understanding of the patterns and processes underlying the structure of parasite communities has progressed significantly in the last years; however, much of the evidence available to date on parasite community comes from unconfirmed studies. In this study the ectoparasite communities of 2 related rockfishes, Seba...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182006000370
更新日期:2006-09-01 00:00:00
abstract::This study reports that inhibition of Leishmania Topo-I with the minor groove-binding ligands (MGBLs) Hoechst 33342 (Ho342) blocks parasite growth in culture by mechanisms involving DNA breakage. While Ho342 inhibited the replication of several species of Leishmania in a dose- and time-dependent manner, Ho258 was not ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182002002524
更新日期:2003-01-01 00:00:00
abstract::Guinea worm disease, dracunculiasis or dracontiasis, is an ancient disease with records going back over 4500 years, but until the beginning of the 20th century, little was known about its life cycle, particularly how humans became infected. In 1905, Robert Thomas Leiper was sent by the British colonial authorities to ...
journal_title:Parasitology
pub_type: 传,历史文章,杂志文章,评审
doi:10.1017/S0031182017000683
更新日期:2017-10-01 00:00:00
abstract::Vitellogenin synthesis by the fat body has been monitored using in vitro culture and immunoprecipitation. This system was found to be efficient for measuring vitellogenin production in both non-infected Tenebrio molitor and those infected with Hymenolepis diminuta. In fat bodies from infected beetles, vitellogenin pro...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000066658
更新日期:1996-04-01 00:00:00
abstract::Alveolar echinococcosis (AE) is a zoonotic parasitic diseases caused by a cestode parasite known as Echinococcus multilocularis. The parasite has a wildlife cycle with definitive hosts (foxes) and small mammals as intermediate hosts (rodents) while humans are the accidental hosts. Parasite infection pressure relation ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182019001720
更新日期:2020-03-01 00:00:00
abstract::Factors which may be important in the large-scale extraction of coccidial oocysts from faeces ha.ve been investigated with Eimeria tenella. Age of bird, inoculum, feeding status at the time of inoculation, period of collection, feeding status during collection, collection medium, homogenization and sieving, flotation,...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000046990
更新日期:1976-12-01 00:00:00
abstract::The surface morphology of fixed ovarian balls from female Moniliformis dubius, agd 12, 18, 26, 28, 42, 77, 105 and 118 days, has been examined by means of scanning electron microscopy. The appearance of the surface has been found to be variable between ovarian balls from worms of the same and different ages. Some part...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000056146
更新日期:1980-10-01 00:00:00
abstract::Cryptosporidium parvum is composed of multiple subtypes, which appear to be zoonotic or anthroponotic. Therefore, in order to understand the molecular epidemiology of this species and to control the zoonotic transmission, it is essential to identify the isolates at the subtype level. In the present study, 60.2% of 103...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182006001508
更新日期:2007-03-01 00:00:00
abstract::We investigated spatial variation in the phylogenetic structure of host spectra in fleas parasitic on small mammals. Measures of phylogenetic host specificity ((phylogenetic species clustering (PSC) and phylogenetic species variability (PSV)) varied significantly more between than within flea species, but the proporti...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182013001376
更新日期:2014-02-01 00:00:00
abstract::The fine structure of the envelopes surrounding hatched and unhatched oncospheres of Hymenolepis nana has been investigated by transmission and scanning electron microscopy (SEM), together with light microscope histochemical observations of JB-4 embedded material. The oncosphere is surrounded by 3 layers--the capsule,...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000066968
更新日期:1981-06-01 00:00:00
abstract::Costa Rica is near malaria elimination. This achievement has followed shifts in malaria health policy. Here, we evaluate the impacts that different health policies have had on malaria transmission in Costa Rica from 1913 to 2018. We identified regime shifts and used regression models to measure the impact of different...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182020000621
更新日期:2020-08-01 00:00:00
abstract::The use of parasites as biological tags to discriminate among marine fish stocks has become a widely accepted method in fisheries management. Here, we first link this approach to its unstated ecological foundation, the decay in the similarity of the species composition of assemblages as a function of increasing distan...
journal_title:Parasitology
pub_type: 杂志文章,meta分析,评审
doi:10.1017/S0031182013001534
更新日期:2015-01-01 00:00:00
abstract::Recent publications demonstrated that a fragment of a Neospora caninum ROP2 family member antigen represents a promising vaccine candidate. We here report on the cloning of the cDNA encoding this protein, N. caninum ROP2 family member 1 (NcROP2Fam-1), its molecular characterization and localization. The protein posses...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182013000383
更新日期:2013-07-01 00:00:00
abstract::An egg-adapted line of Eimeria necatrix has now been passaged 40 times in the chorio-allantoic membranes of embryonated eggs. Between the 21st and 40th passage in eggs the parasite was subjected to a selection for precocious development, and its pre-patent period in this host is now 123-125 h. The parasite continued t...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000044784
更新日期:1982-04-01 00:00:00
abstract::Plants containing condensed tannins (CT) may have potential to control gastrointestinal nematodes (GIN) of cattle. The aim was to investigate the anthelmintic activities of four flavan-3-ols, two galloyl derivatives and 14 purified CT fractions, and to define which structural features of CT determine the anti-parasiti...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182015001912
更新日期:2016-04-01 00:00:00
abstract::Bloodstream forms of Trypanosoma congolense (2 clones: ILNat3.1 and IL3000, and 4 stocks: IL2079, IL2466, IL3266 and CP-81) were continuously cultivated in vitro at 34-36 degrees C in the absence of feeder cell layers, using HMI-93 medium which was modified from Iscove's modified Dulbecco's MEM (Flow Laboratories, Irv...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000062533
更新日期:1991-04-01 00:00:00
abstract::Parasite-host interactions mediated by cell surface proteins have been implicated as a critical step in infections caused by the microsporidian Nosema bombycis. Such cell surface proteins are considered as promising diagnostic markers and targets for drug development. However, little research has specifically addresse...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182015000190
更新日期:2015-06-01 00:00:00
abstract::Uptake of radioactivity labelled purine bases and nucleosides by suspensions of Trypanosoma brucei and Trypanosoma congolense in bicine buffer was determined at 37 degrees C. With T. brucei, the rate of uptake of adenosine was much greater than that of the other compounds tested, the uptake of which decreased in the o...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000056110
更新日期:1980-10-01 00:00:00
abstract::Humans and other hosts acquire Toxoplasma gondii infection by ingesting tissue cysts in undercooked meat, or by food or drink contaminated with oocysts. Currently, there is no vaccine to prevent clinical disease due this parasite in humans, although, various T. gondii vaccine candidates are being developed. Mice are g...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182011001673
更新日期:2012-01-01 00:00:00
abstract::Aspects of vitellogenesis, known to be controlled by juvenile hormone, are adversely affected by Hymenolepis diminuta infection of Tenebrio molitor, in spite of circulating titres of the hormone remaining unchanged. It has therefore been proposed that juvenile hormone binding is disrupted at the tissue site level. Juv...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000065288
更新日期:1995-06-01 00:00:00
abstract::Strongyloidiasis is frequently asymptomatic and diagnosis of latent infection is difficult due to limitations of current parasitological and serological methods. This study aimed to verify the use of conventional polymerase chain reaction (PCR) assay for molecular diagnosis of Strongyloides stercoralis infection. Fres...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182013002035
更新日期:2014-04-01 00:00:00
abstract::It is suspected that host-parasite interactions are influenced by climatic oscillations such as the North Atlantic Oscillation (NAO). However, the effects of climatic oscillations on host-parasite interactions have never been investigated. A long-term (1982-1999) dataset of the host snail Lymnaea stagnalis and tremato...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182011000655
更新日期:2011-07-01 00:00:00
abstract::Merocyanin 540 (Mc540) is a fluorescent compound which is thought to bind to membranes in which there are substantial amounts of lipid in the lipid-crystalline phase. It is shown here to be of value in detecting the transformation by both mechanical and skin-penetration methods of the cercaria to the schistosomulum. T...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000081671
更新日期:1988-02-01 00:00:00
abstract::The gastrointestinal nematode Heligmosomoides polygyrus bakeri shows enhanced survival in mice with colitis. As the antibody response plays an important role in antiparasitic immunity, antibodies against male and female L4 H. polygyrus were examined in mice with and without colitis. Levels of specific antibodies in th...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182020001201
更新日期:2020-11-01 00:00:00
abstract::Cats were repeatedly inoculated with infective larvae of Brugia pahangi. On parasitological grounds they could be divided into 5 groups. Group I--most cats (some 70%) became microfilaraemic (mf+) and retained high levels of microfilariae (mf) in their blood for over 2 years. In some Group I cats mf counts stabilized a...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/s0031182000063666
更新日期:1992-06-01 00:00:00
abstract::Given the worldwide decline of amphibian populations due to emerging infectious diseases, it is imperative that we identify and address the causative agents. Many of the pathogens recently implicated in amphibian mortality and morbidity have been fungal or members of a poorly understood group of fungus-like protists, ...
journal_title:Parasitology
pub_type: 杂志文章
doi:10.1017/S0031182007003708
更新日期:2008-02-01 00:00:00
abstract::Taenia crassiceps is a cestode parasite of wild and domestic animals that rarely affects humans; it has been widely used as an experimental model. The asexual proliferation by budding is a useful attribute of T. crassiceps cysticerci, which allows the various strains to be maintained indefinitely in the peritoneal cav...
journal_title:Parasitology
pub_type: 杂志文章,评审
doi:10.1017/S0031182009991442
更新日期:2010-03-01 00:00:00