Publications

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cardiac performance correlates of relative heart ventricle mass in amphibians.this study used an in situ heart preparation to analyze the power output and stroke work of spontaneously beating hearts of four anurans (rhinella marina, lithobates catesbeianus, xenopus laevis, pyxicephalus edulis) and three urodeles (necturus maculosus, ambystoma tigrinum, amphiuma tridactylum) that span a representative range of relative ventricle mass (rvm) found in amphibians. previous research has documented that rvm correlates with dehydration tolerance and maximal aerobic capacity in am ...201323619575
brucella spp. of amphibians comprise genomically diverse motile strains competent for replication in macrophages and survival in mammalian hosts.twenty-one small gram-negative motile coccobacilli were isolated from 15 systemically diseased african bullfrogs (pyxicephalus edulis), and were initially identified as ochrobactrum anthropi by standard microbiological identification systems. phylogenetic reconstructions using combined molecular analyses and comparative whole genome analysis of the most diverse of the bullfrog strains verified affiliation with the genus brucella and placed the isolates in a cluster containing b. inopinata and th ...201728300153
validating the use of dermal secretion as a matrix for monitoring glucocorticoid concentrations in african amphibian species.the complex interaction between factors leading to amphibian declines is responsible for the inability to develop robust, standardized conservation action plans. monitoring physiological stress responses in amphibians may provide an ideal tool to assist conservationists in this regard. this study aimed to validate dermal secretions as a robust matrix for monitoring glucocorticoid alterations in an african amphibian, the edible bullfrog (pyxicephalus edulis). both a biological (handling) and phys ...201931110770
genotypes and zoonotic potential of enterocytozoon bieneusi in edible bullfrogs (lithobates catesbeiana) in china.enterocytozoon bieneusi, an obligate intracellular pathogen of the intestinal epithelium, is commonly identified in humans and many other animals and is ubiquitous in water sources and the environment generally. to determine the molecular prevalence of e. bieneusi in edible bullfrogs (lithobates catesbeiana) and evaluate the possibility of its potential zoonotic transmission to humans via food or water, the intestinal contents of 295 bullfrogs were intermittently collected from two open markets ...202032051812
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