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This is a survey of the helminth fauna of 285 individuals of 14 species of birds of prey (Falconiformes and Strigiformes) from Galicia (northwest Spain), namely Buteo buteo, Accipiter nisus, A. gentilis, Milvus migrans, M. milvus, Pernis apivorus, Circus pygargus, Falco tinnunculus, F. peregrinus, F. subbuteo, Tyto alba, Strix aluco, Asio otus and Athene(More)
This study investigated the in vitro effects of the polyphenols resveratrol, mangiferin and (-)-epigallocatechin-3-gallate (EGCG) on the histiophagous ciliate Philasterides dicentrarchi, which causes fatal scuticociliatosis in farmed turbot Scophthalmus maximus L. Of the 3 polyphenols, resveratrol showed strongest antiprotozoal activity, reducing ciliate(More)
BACKGROUND The number of allergic reactions to A. simplex reported in Spain has increased dramatically in the last decade. Nevertheless, there have been no studies of the prevalence of and possible risk factors for IgE sensitization to this parasite, possibly because suitably specific diagnostic methods have only recently become available. The objective was(More)
Allozyme markers were used to study genetic variation in Lecithochirium fusiforme within a natural population of Conger conger. Six of 16 enzyme-coding loci studied were found to be polymorphic. These loci were surveyed in 12 infrapopulations of adult flukes. High levels of genetic variation were detected (P = 0.375); Ho = 0.048; He = 0.085). However, the(More)
A parasite of the marine fish Vincentia conspersa was examined by light microscopy and transmission electron microscopy. This parasite develops in the subcutaneous tissue of the body and fins, forming spherical xenomas about 1-2 mm in diameter surrounded by a layer of amorphous material. The observed characteristics of the new parasite are in line with(More)
Resveratrol (RESV; trans-3,5,4'-trihydroxystilbene), a phytoalexin that is produced by some plants, among other effects has well-known antioxidant, anti-inflammatory and immunomodulatory activities in mammals. In the present study, the effects of RESV on several functions of turbot, Psetta maxima (L.), kidney leucocytes (KLs) related to the innate and(More)
Philasterides dicentrarchi is an opportunistic histiophagous ciliate parasite causing systemic scuticociliatosis in cultured turbot (Scophthalmus maximus L.). This study investigated the effects of inoculation with live or killed trophozoites of this ciliate (plus 3% thioglycollate) on the in vitro phagocytic activity and respiratory-burst responses of(More)
Philasterides dicentrarchi is a histiophagous ciliate that causes severe losses in turbot and sea bass farming. This study investigated the in vitro efficacy against P. dicentrarchi of 85 newly synthesized compounds and 12 commercial compounds, of which 2 are fluoroquinolones (norfloxacine and lomefloxacine) with known antibacterial activity. Seventeen of(More)
The present study was carried out to elucidate the in vitro killing activity of turbot complement and specific antibodies against the ciliate parasite Philasterides dicentrarchi. Fresh serum from nonimmunized fish showed a moderate ability to kill the parasite, which indicates that P. dicentrarchi is able to activate the alternative complement pathway(More)
Microsporidians of the genus Encephalitozoon are an important cause of disease in immunocompromised patients, and there are currently no completely effective treatments. The present study investigated the viability and infectivity of spores of Encephalitozoon cuniculi that had been exposed to resveratrol (RESV), a natural phytoalexin found in grapes and red(More)