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The prevalence of Giardia duodenalis, Cryptosporidium spp. and other intestinal parasites was determined in dogs <1 year old from Prince Edward Island, Canada. Fecal samples were collected from the local animal shelter (n=62), private veterinary clinics (n=78) and a pet store (n=69). Intestinal para...
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The adult American lobster (Homarus americanus) is susceptible to few naturally occurring pathogens, and no viral pathogen is known to exist. Despite this, relatively little is known about the H. americanus immune system and nothing is known about its potential viral immune response. Hundreds of rur...
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Microstimulation of the rat posterior insular cortex in phase with the ECG R wave elicits pure cardiac effects unaccompanied by changes in blood pressure or respiration. This technique has successfully demonstrated cardiac chronotropic organisation and arrhythmogenesis within the insula. Pathways ex...
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A photo-activated sound alarm was placed in a specially designed sterile semi-conical sponge tampon and inserted into the vagina of the sow after labour had commenced, or on the day before expected parturition. When the tampon was expelled from the vagina by the first-born piglet and was thus expose...
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The current investigation examined the role of estrogen in central autonomic regulatory nuclei on the autonomic dysfunction resulting from middle cerebral artery occlusion (MCAO). Experiments were done in anaesthetized male Sprague-Dawley rats. The effect of MCAO on autonomic tone was assessed by mo...
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This is the first transcriptomic study focusing on immunity in the commercially valuable American lobster (Homarus americanus). We have conducted an in vivo infection trial using the Gram-positive bacterium Aerococcus viridans var. homari to determine how H. americanus responds to this naturally occ...
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Agricultural pesticide runoff has been suspected as the cause of numerous fish kills in rivers throughout Prince Edward Island but the impact on the surrounding marine environment is unknown. Endosulfan, an organochlorine pesticide, is a potent neurotoxin and molt inhibitor used to combat the Colora...
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Thesis (Ph. D.)--University of Western Ontario, 1995. Includes bibliographical references.
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Efficacy of levamisole was evaluated in a suspected levamisole-resistant population of Haemonchus contortus in the Louisiana State University sheep flock. The efficacy of netobimin also was evaluated against this population of Haemonchus. In trial 1, 5 lambs naturally infected with H contortus were ...
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We tested the hypothesis that Substance P (SP) produces the same effects as cocaine by examining their actions on excitatory synaptic transmission in the nucleus accumbens (NAc). SP produced an irreversible depression of non-NMDA receptor mediated EPSC: EC50:0.12 uM; maximal suppression: −33.4 ± ...
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A method of modeling in vitro focal ischemia comprising: perfusing a tissue slice in vitro with an oxygenated medium; and, applying a focal insult to a targeted portion of the tissue slice. The method is particularly useful for brain tissue.
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The present application relates to novel apocynin-lopioc acid covalent conjugates, compositions comprising these compounds and their use, in particular for the treatment of diseases, disorders or conditions that are mediated by oxidative stress. In particular, the present application includes compou...
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A small commercial hunt for 5-7 weeks old grey seals (Halichoerus grypus) occurs intermittently around the Canadian Maritime provinces and may expand in the near future. We sought to better understand and, where possible, improve the harvesting methods of this hunt. We compared the use of the regula...
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The present application relates to novel apocynin-lopioc acid covalent conjugates, compositions comprising these compounds and their use, in particular for the treatment of diseases, disorders or conditions that are mediated by oxidative stress. In particular, the present application includes compou...
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The zoonotic protozoan parasites Cryptosporidium parvum, and Giardia duodenalis can colonize the gastrointestinal tracts of many farmed, domestic and wild animals, and are capable of causing disease in humans. Due to their high prevalence in dairy and beef cattle, farms are considered to be potentia...
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A new dilophol diterpene, eunicidiol (1), has been isolated from the crude extract of Eunicea fusca, a gorgonian coral collected from Hillsboro Ledge, Florida. This compound was purified, along with fuscol (2) and eunicol (3), using a combination of normal- and reversed-phase chromatography methods....
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There are currently four invasive tunicate species which are causing significant challenges to the aquaculture industry in Atlantic Canada: Ciona intestinalis, Styela clava, Botryllus schlosseri and Botrylloides violaceus. Molecular PCR based assays have been developed in previous studies as high th...
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Levamisole, morantel, fenbendazole, or ivermectin was administered at 2-week intervals from May 1 through Sept 14, 1985, to breeding ewes (20 ewes/drug) infected with various gastrointestinal nematodes. All ewes had fewer gastrointestinal nematode eggs per gram of feces (epg) after 2 treatments, com...
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Substance P (SP) and cocaine employ similar mechanisms to modify excitatory synaptic transmission in the nucleus accumbens (NAc), a region implicated in substance abuse. Here we explored, using NAc slices, whether SP effects on these synaptic responses were altered in rats that have been sensitized ...
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An animal stroke model is provided. The model is useful in the study of brain ischemia and/or reperfusron injury and in identification and testing of compounds and interventions useful in the treatment of stroke. The method is carried out in a non-human mammal, such as rat. The method of inducing is...