Journal of Parasitology
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Ultrastructure of head organs (anterior adhesive apparatus) and posterior secretory systems of Caballeria liewi Lim, 1995 (Monogenea, Ancyro...
Caballeria liewi Lim, 1995, uses adhesive secretions from the head organs and posterior secretory systems to assist in locomotion and attachment. Ultrastructural investigations show that the head organs of C. liewi consist of three pairs of antero-lateral pit-like openings bearing microvilli and duc...
Besnoitia besnoiti tachyzoites induce monocyte extracellular trap formation.
We show that tachyzoites of the emerging apicomplexan parasite Besnoitia besnoiti, that have recently been reported as potent inducers of PMN-derived ETosis, also trigger the release of ETs in an additional cell type, namely in monocytes. Fluorescence illustrations as well as scanning electron micro...
Differential inhibition of host cell cholesterol de novo biosynthesis and processing abrogates Eimeria bovis intracellular development.
We here focused on the latter mechanism and analyzed the effects of several inhibitors targeting the host cellular mevalonate biosynthesis pathway and cholesterol processing. The following inhibitors were used: lovastatin, squalestatin, CI976 and C75 targeting HMG-CoA reductase, squalene synthase, a...
Parasites of Urophycis brasiliensis (Gadiformes: Phycidae) as indicators of marine ecoregions in coastal areas of the South American Atlanti...
We proposed that parasite assemblages, which are composed of several metazoan phyla, are potentially useful as ecosystem indicators. This suggestion is derived from the combined evidence of the evolutionary history and biogeography of multiple lineages, which is expected to be more efficient in capt...
Acaricide activity in vitro of Acmella oleracea against Rhipicephalus microplus.
These results demonstrate that the hexane extract of A. oleracea has significant activity against R. microplus and has potential to be developed into formulations for tick control....
Some secrets are revealed: parasitic keratitis amoebae as vectors of the scarcely described pandoraviruses to humans.
We have clearly demonstrated how easily such (viral) endocytobionts can be transferred to humans. This case counts as an example of parasites acting as vectors of phylogenetically different microorganisms especially when living sympatric within their biocoenosis of biofilms. As the third part of the...
Impact of humidity on clustered tick eggs.
Eclosion of larvae from clustered tick eggs (1, 5, 10, 15, 20, 25, 50, and ±1,000 eggs) of Rhipicephalus sanguineus (Rs), Rhipicephalus microplus (Rm), Amblyomma cajennense (Ac), and Dermacentor nitens (Dn) was investigated at 43, 75, and > 98 % relative humidity (RH) and 25 °C. Susceptibility of eg...
Predatory activity of the fungus Duddingtonia flagrans in equine strongyle infective larvae on natural pasture in the Southern Region of Bra...
Biological control is an alternative method to reduce the population of parasites through natural predators. A promising option of biological control in the reduction of infective larvae on pasture is the use of nematophagous fungi. In this study, the efficacy of the nematophagous fungus Duddingtonia...
The study of apoptotic bifunctional effects in relationship between host and parasite in cystic echinococcosis: a new approach to suppressio...
Cystic echinococcosis (hydatidosis) is a zoonotic helminthic disease of human and other intermediated hosts wherein infection is caused by the larval stages of tapeworm Echinococcus granulosus. Growth of the larval stage is formed throughout the internal organs, the liver and lung, c...
MOLECULAR SURVEY OF APICOMPLEXA IN PODARCIS WALL LIZARDS DETECTS HEPATOZOON, SARCOCYSTIS AND EIMERIA SPECIES.
Abstract The occurrence of Apicomplexan parasites in Podarcis wall lizards from the Iberian Peninsula and Balearic islands was studied by amplification and sequencing of the 18S rRNA gene. Species from three genera, Hepatozoon, Sarcocystis and Eimeria were detected. The phylogeneti...