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1351 - 1375 of 1442
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Two variants of Loma salmonae occur in net-pen reared chinook salmon, Oncorhynchus tshawytscha. The typical variant (OA) has a host specificity for salmonids of the genus Oncorhynchus whereas the atypical variant (SV) has a host specificity for brook trout, Salvelinus fontinalis, and in this study, ...
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BACKGROUND: Serum total alkaline phosphatase (AP) activity commonly is high in dogs receiving phenobarbital. Specific isoenzymes responsible for this increase are not well documented. OBJECTIVES: The purposes of this study were 1) to qualitatively and quantitatively describe serum AP isoenzymes in p...
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Sturgeon aquaculture has increased considerably worldwide but little is known about their immunological development and competence in early life stages. Culture of larvae is one of the most critical stages in intensive sturgeon farming, often associated with high mortality rates. The objective of th...
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A variety of human enteropathogens, including viruses, bacteria, and parasites, have been shown to bioaccumulate in suspension-feeding bivalve shellfish. Cryptosporidium parvum is a zoonotic protozoan parasite that has been detected in many shellfish species within both fecally contaminated and clea...
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Edaravone, an electron spin trapper with radical scavenging activity, has been shown to be effective in reducing infarct volume in humans following ischemic stroke. However, concerns of edaravone-induced renal toxicity have limited its clinical adoption. Previous work has demonstrated that edaravone...
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Discovery of novel bioactive metabolites from marine bacteria is becoming increasingly challenging, and the development of novel approaches to improve the efficiency of early steps in the microbial drug discovery process is therefore of interest. For example, current protocols for the taxonomic dere...
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In this article, we compare quantitatively the efficiency of three different protocols commonly used in commercial defibrillators. These are based on monophasic and both symmetric and asymmetric biphasic shocks. A numerical one-dimensional model of cardiac tissue using the bidomain formulation is us...
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Background The quantitative effect of strong electrolytes, unmeasured anions (UAs), pCO2, and plasma protein concentrations in determining plasma pH and bicarbonate (HCO3−) can be demonstrated using the physicochemical approach. Demeanor of calves with diarrhea is associated with acidemia, dehydr...
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Allergic diseases are a major medical concern with increasing prevalence in the world. Inflammation is one of the hallmarks of allergic diseases. Long chain n-3 polyunsaturated fatty acids (PUFAs) have been shown to inhibit allergic inflammation, but their direct effect on activation of the mast cel...
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Resveratrol, a dietary polyphenol with antioxidant and anti-inflammatory activity, has been shown to provide neuroprotection in models of ischemia. However, the mechanism of action of resveratrol-induced neuroprotection remains unclear. Previous work in our laboratory has provided evidence that acut...
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Following stroke, impairments in arm function are common motor deficits in survivors, affecting thousands of people each year. A useful technique used in clinical rehabilitation of patients with arm impairments is to force use of the impaired arm through constraint of the unaffected (or less affecte...
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Effective control of parasitic sea lice (including Lepeophtheirus salmonis and Caligus elongatus), is a major challenge currently facing sea cage salmon aquaculture. Emamectin benzoate (EMB; SLICE®), a macrocyclic lactone (ML), has been the drug of choice for sea lice treatment over the past decade...
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The American lobster (Homarus americanus) is harvested along the eastern seaboard of North America and forms the economic backbone of many small fishing communities in Atlantic Canada and the northeastern United States. The industry sets minimum size (carapace length) for harvesting American lobster...
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In 2005, trichomonosis emerged as a new cause of substantial mortality in United Kingdom (UK) greenfinch (Carduelis chloris) and chaffinch (Fringella coelebs) populations. Similar to the UK, in the summer and fall of 2007–2009 and 2011, mortalities due to trichomonosis occurred in the Canadian Mar...
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Potato farming and lobster fishing are two important industries on Prince Edward Island. However for both industries to be sustainable, they must be managed responsibly. Recently, agricultural runoff has been suspected to have caused numerous fish kills in rivers throughout the island. Although a pe...
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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. These tunicates foul mussel socks, aquaculture gear, boat hulls and wharves. ...
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Sturgeon are harvested worldwide for their meat and eggs, sold as caviar and are among the most economically important fish species worldwide. A generally low physiological response to external stimuli/stressors has been documented in these phylogenetically primitive species. Considering how little ...
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The American lobster (Homarus americanus) is the most economically significant commercial fishery species in Canada. The Canadian lobster fishery provides tens of thousands of jobs, and is the economic driver of hundreds of rural communities in Atlantic Canada and Quebec. The adult lobster is suscep...
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Satosporins A and B, two novel glucosylated polyketides, were isolated from the actinomycete Kitasatospora griseolaMF730-N6. The polyketides possess an unprecedented tricyclic ring system that was fully characterized using a combination of spectroscopic analyses and computational calculations. Satos...
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Molecular features of cadmium (Cd) and calcium (Ca) uptake and toxicity in rainbow trout liver mitochondria were studied using modulators of mitochondrial permeability transition pore (MPTP), mitochondrial calcium uniporter (MCU) and rapid uptake mode (RaM). Malate-glutamate energized mitochondria w...
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Impairment of the electron transport chain (ETC) is implicated in cadmium (Cd)- and calcium (Ca)-induced mitochondrial dysfunction. To localize the sites of the impairment, effects of 0-50μM Cd and Ca, singly and in combination, on complex I- to IV-driven respirations were investigated using isolat...
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Haemic neoplasia (HN) is a leukemia-like disease that affects at least 20 species of marine bivalves including soft shell clam, Mya arenaria. Since the disease was discovered in 1969, the etiology remains unknown. A retroviral etiology has been suggested based on the detection of reverse transcripta...
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In a cross-sectional study of 633 pigs from 21 herds on Prince Edward Island, Canada (PEI), the prevalence of infection with Cryptosporidium and Giardia, and the genotypes and species of isolates were determined in order to establish the zoonotic potential of pigs in this region. As determined by di...
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BACKGROUND: Cattle represent a reservoir for Giardia and Cryptosporidium and may contaminate water sources. OBJECTIVES: To determine the distribution of Cryptosporidium and Giardia on dairy farms and in water bodies near the farms. FARMS AND WATER SOURCES: Twenty dairy farms and 20 wells and 13 su...
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The objectives of this study were to determine the prevalence and assemblages of Giardia and species of Cryptosporidium on beef farms in Prince Edward Island (PEI), Canada, including the water sources associated with the farms, and to determine risk factors for infection of cattle with these parasit...