Health policy impacts on malaria transmission in Costa Rica.

abstract：:Electrophoresis of secretions collected from Globodera pallida revealed a smeared region between 25 and 50 kDa, and a single band of < 20 kDa. The secretions were used to raise an antiserum (LW1). Immunoblotting of parasite homogenates with LW1 differentiated G. pallida from its sibling species G. rostochiensis and re...

journal_title：Parasitology

authors： Duncan LH,Robertson L,Robertson WM,Kusel JR

更新日期：1997-10-01 00:00:00

abstract：:Multiple infections, those by more than one parasite in the same erythrocyte, may be adaptive for the malarial parasite as a means to ensure fertility. Alternatively they may simply be the consequence of a non-adaptive process forcing several parasites to compete for resources in one host cell. Avian hosts infected wi...

journal_title：Parasitology

authors： Martínez-de la Puente J,Merino S,Tomás G,Moreno J,Morales J,Lobato E

更新日期：2006-01-01 00:00:00

abstract：:Following cloning of Leishmania (L.) amazonensis kinetoplast DNA two recombinant clones were identified: one specific for L. (L.) amazonensis and the other specific for L. (L.) amazonensis and closely related isolates. DNA sequences from these clones were compared with those of other kinetoplastids and oligonucleotide...

journal_title：Parasitology

authors： Eresh S,McCallum SM,Barker DC

更新日期：1994-11-01 00:00:00

abstract：:The complex life-cycles of parasitic animals are a product of exploiting the process of development to generate organisms with different biological potentials within a species. Successive stages of the parasite adapt to functions such as host invasion and transmission, and to the colonization of a variety of niches, o...

journal_title：Parasitology

authors： Bianco AE,Maizels RM

更新日期：1989-01-01 00:00:00

abstract：:The protein composition of Schistosoma mansoni was analysed by electrophoresis in polyacrylamide slab gel in the presence of sodium dodecyl sulphate. A high degree of identity existed between protein patterns obtain from immature and adult parasites of the two sexes. Some stage-and sex-specific components were indenti...

journal_title：Parasitology

authors： Ruppel A,Cioli D

更新日期：1977-12-01 00:00:00

abstract：:Glucose uptake was examined in adult specimens of Proterometra macrostoma (Trematoda: Digenea) recovered from the stomach (endoparasites) and gills (ectoparasites) of longear sunfish, Lepomis megalotis. The endoparasitic forms transported glucose directly through the external body surface by Na+-independent, facilitat...

journal_title：Parasitology

authors： Uglem GL

更新日期：1987-02-01 00:00:00

abstract：:A dipstick dot ELISA for detection of Taenia-specific coproantigens was developed. The test was based on a sandwich ELISA using antibodies raised against adult Taenia solium. Antibodies were absorbed to nitrocellulose paper previously adhered to acetate plastic to form dipsticks. Once blocked with 5% skimmed milk and ...

journal_title：Parasitology

authors： Allan JC,Mencos F,Garcia-Noval J,Sarti E,Flisser A,Wang Y,Liu D,Craig PS

更新日期：1993-07-01 00:00:00

abstract：:Changes during development in the elemental contents (Ca, P, K, Mg and S) of male and female Schistosoma mansoni from both mixed and single sex infections have been measured for the first time. In mixed infections, there is a significant difference between the calcium content of male and female worms; female worms hav...

journal_title：Parasitology

authors： Shaw MK,Erasmus DA

更新日期：1983-06-01 00:00:00

abstract：:Electrophysiological and pharmacological techniques were used to study glutamatergic signalling in the parasitic nematode, Ascaris suum. Glutamate or kainate injections into whole worms produced a paralysed quasi-static posture similar to the waveform in behaving worms. The DE2 motorneuron class is a primary target. S...

journal_title：Parasitology

authors： Davis RE

更新日期：1998-05-01 00:00:00

abstract：:The period 1875-1925 was remarkable in the history of parasitology mainly for the elucidation of the life cycles of parasites causing important parasitic diseases and the incrimination of vectors in their transmission. These discoveries were made by a small number of scientists working in the tropics a number of whom ...

journal_title：Parasitology

authors： Cox FEG

更新日期：2017-10-01 00:00:00

abstract：:The population of malaria-causing parasites is characterized by great genetic diversity. Knowledge of the polymorphism generation mechanism is a central issue for developing effective vaccines against malaria and understanding the parasite population structure. Plasmodium vivax genetic diversity has been explained in ...

journal_title：Parasitology

authors： Martinez P,Suarez CF,Cardenas PP,Patarroyo MA

更新日期：2004-04-01 00:00:00

abstract：:Cryptosporidia are important protozoan parasites of vertebrates, and a number of species and genotypes, with different host ranges, have been described. In this study a protocol was established for the detection and the genetic characterization of Cryptosporidium spp. isolated from various types of surface waters (riv...

journal_title：Parasitology

authors： Ward PI,Deplazes P,Regli W,Rinder H,Mathis A

更新日期：2002-04-01 00:00:00

abstract：:Recent studies of Echinococcus granulosus molecular strain typing have enabled a better understanding of the transmission cycle of cystic echinococcosis. There have been many publications in this area but there is a need for the evaluation of these tools. We have attempted to respond to this need in our study, which a...

journal_title：Parasitology

authors： Bart JM,Bardonnet K,Elfegoun MC,Dumon H,Dia L,Vuitton DA,Piarroux R

更新日期：2004-02-01 00:00:00

abstract：:Despite the great interest to quantify the structure of host-parasite interaction networks, the real influence of some factors such as taxonomy, host body size and ecological opportunity remains poorly understood. In this paper, we investigate the general patterns of organization and structure of interactions in two a...

journal_title：Parasitology

authors： D'Bastiani E,Campião KM,Boeger WA,Araújo SBL

更新日期：2020-11-01 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

authors： Poulin R,Kamiya T

更新日期：2015-01-01 00:00:00

abstract：:By means of conventional light microscopical and counting procedures, estimations have been made of the average number and size of ovarian balls from unfertilized and fertilized female Moniliformis dubius. The observations were made on worms recovered from experimental primary infections lasting 1, 2, 3, 4, 5, 8, 11, ...

journal_title：Parasitology

authors： Crompton DW,Arnold S

更新日期：1976-08-01 00:00:00

abstract：:Eimerian oocysts were found in 98% of 422 faeces samples from goats in SE England. It was found that 74% of the samples contained thousands or tens of thousands of oocysts/g. Kids less than 1 year old had higher oocyst counts than yearling or adult goats. Nine species of Eimeria were identified, and 65% of the samples...

journal_title：Parasitology

authors： Norton CC

更新日期：1986-04-01 00:00:00

abstract：:The behaviour and development of Elasmosoma sp., near pergandei Ashm. (Neoneurinae: Braconidae: Hymenoptera), a parasite of the ant, Formica obscuriventris clivia Creighton, was studied in a coastal sand dune habitat in central Oregon over a 2-year period. Female wasps oviposited into the abdomen of major worker ants ...

journal_title：Parasitology

authors： Poinar G Jr

更新日期：2004-05-01 00:00:00

abstract：:Like in other trypanosomatids D-glucose is a crucial source of energy to Trypanosoma rangeli, a non-pathogenic parasite that in Central and South America infects triatomine vectors and different mammalian species, including humans. In several trypanosome species, D-glucose transporters were already described and clone...

journal_title：Parasitology

authors： Miletti LC,Koerich LB,Pacheco LK,Steindel M,Stambuk BU

更新日期：2006-12-01 00:00:00

abstract：:The abundance of Profilicollis botulus was monitored in eider ducks for 3 years. No significant difference in P. botulus abundance was found between eiders taken alive and those collected dead from the shore line, or between adult males and adult females. Adult male eiders had a seasonal pattern of infection. Incubati...

journal_title：Parasitology

authors： Thompson AB

更新日期：1985-12-01 00:00:00

abstract：:Polychromophilus murinus, a malaria parasite of Chiroptera is reported from Myotis daubentoni in England. The vector was suspected to be the ectoparasitic Nycteribiid fly, Nycteribia kolenatii. N. kolenatii collected from wild-caught M. daubentoni were found to have oocysts on the midgut and sporozoites in the salivar...

journal_title：Parasitology

authors： Gardner RA,Molyneux DH

更新日期：1988-06-01 00:00:00

abstract：:Although the rumen fluke, Calicophoron daubneyi is now very common and widespread throughout Western Europe, reports of clinical cases are still rare. This study explores the epidemiological background to a severe rumen fluke outbreak in 6-month-old heifers on a dairy farm in Ireland. Sequence analysis of the cytochro...

journal_title：Parasitology

authors： O'Shaughnessy J,Garcia-Campos A,McAloon CG,Fagan S,de Waal T,McElroy M,Casey M,Good B,Mulcahy G,Fagan J,Murphy D,Zintl A

更新日期：2018-06-01 00:00:00

abstract：:Oligosaccharides are broadly present on Leishmania cell surfaces. They can be useful for the leishmaniases diagnosis and also helpful in identifying new cell markers for the disease. The disaccharide Galα1-3Galβ is the immunodominant saccharide in Leishmania cell surface and is the unique non-reducing terminal glycosp...

journal_title：Parasitology

authors： de Souza LMB,Thomaz Soccol V,Petterle RR,Bates MD,Bates PA

更新日期：2018-12-01 00:00:00

abstract：:The nematode-trapping fungus Arthrobotrys oligospora traps and invades all the free-living juvenile stages of the trichostrongyle nematode Trichostrongylus colubriformis. The processes of capture and invasion of the 1st-stage juveniles are described using differential interference contrast optics and 3-D reconstructio...

journal_title：Parasitology

authors： Murray DS,Wharton DA

更新日期：1990-08-01 00:00:00

abstract：:Schistosomula of Schistosoma mansoni were incubated in RPMI 1640 medium containing 10% fetal calf serum, 10% human portal venous or 10% human peripheral venous sera in the presence of bromodeoxyuridine (BrdU) in order to measure differences in cell proliferation. The rates of cell proliferation as expressed by BrdU la...

journal_title：Parasitology

authors： Shaker YM,Wu CH,el-Shobaki FA,Ashour E,Khattab HM,Draz HM,Kamel R,Wu GY

更新日期：1998-10-01 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

authors： Cocude C,Pierrot C,Cêtre C,Fontaine J,Godin C,Capron A,Khalife J

更新日期：1999-04-01 00:00:00

abstract：:Toxoplasma gondii is an obligate intracellular protozoan parasite. The objective of the present study was to examine the behaviour of Toxoplasma gondii RH Ankara strain tachyzoites in a cell culture environment. The study represents the first step in determining whether T. gondii RH Ankara strain tachyzoites, grown in...

journal_title：Parasitology

authors： Döskaya M,Degirmenci A,Ciçek C,Ak M,Korkmaz M,Gürüz Y,Uner A

更新日期：2006-03-01 00:00:00

abstract：:Sexual size dimorphism (SSD) in mammals reveals the extent of sexual selection, which may in turn explain why males are often more infected by parasites than females and that parasites may contribute to the association between SSD and male-biased mortality. Here, we investigated the relationship between SSD in small m...

journal_title：Parasitology

authors： Morand S,De Bellocq JG,Stanko M,Miklisová D

更新日期：2004-10-01 00:00:00

abstract：:A double antibody sandwich ELISA technique has been developed for detection of antigens of African trypanosomes present in the sera of infected mammals. The assay uses a high titre, high affinity rabbit antiserum made to purified membranes of procyclic trypanosomes as "capture" reagent and a mixture of three biotin-la...

journal_title：Parasitology

authors： Liu MK,Pearson TW

更新日期：1987-10-01 00:00:00

abstract：:Trials were carried out to study the humoral immune response of blackflies to filariae following infection using the intrathoracic injection technique. An induced 66 kDa protein was abundant in the haemolymph of the European species Simulium ornatum following infection with bovine Onchocerca lienalis. This protein was...

journal_title：Parasitology

authors： Hagen HE,Grunewald J,Ham PJ

更新日期：1994-12-01 00:00:00