Publications

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prion protein in cardiac muscle of elk (cervus elaphus nelsoni) and white-tailed deer (odocoileus virginianus) infected with chronic wasting disease.to investigate the possible presence of disease-associated prion protein (prp(d)) in striated muscle of chronic wasting disease (cwd)-affected cervids, samples of diaphragm, tongue, heart and three appendicular skeletal muscles from mule deer (odocoileus hemionus), white-tailed deer (odocoileus virginianus), elk (cervus elaphus nelsoni) and moose (alces alces shirasi) were examined by elisa, western immunoblot and immunohistochemistry (ihc). prp(d) was detected in samples of heart muscle from se ...200617030881
oral transmission of chronic wasting disease in captive shira's moose.three captive shira's moose (alces alces shirasi) were orally inoculated with a single dose (5 g) of whole-brain homogenate prepared from chronic wasting disease (cwd)-affected mule deer (odocoileus hemionus). all moose died of causes thought to be other than cwd. histologic examination of one female moose dying 465 days postinoculation revealed spongiform change in the neuropil, typical of transmissible spongiform encephalopathy. immunohistochemistry staining for the proteinase-resistant isofor ...200617092895
a natural case of chronic wasting disease in a free-ranging moose (alces alces shirasi).chronic wasting disease (cwd) was diagnosed in a free-ranging moose (alces alces shirasi) killed by a hunter in jackson county, colorado, usa, in september 2005. the diagnosis was based upon immunohistochemistry (ihc) demonstrating the presence of accumulations of cwd-associated prion protein (prp(cwd)) in tissue sections of medulla oblongata at the level of the obex (dorsal motor nucleus of the vagus) and in retropharyngeal lymph node (rpln); additional testing by ihc revealed deposits of prp(c ...200717495319
molecular characterization of the rocky mountain elk (cervus elaphus nelsoni) prnp putative promoter.chronic wasting disease (cwd) is a transmissible spongiform encephalopathy (tse) affecting deer (odocoileus spp.), moose (alces alces), and rocky mountain elk (cervus elaphus nelsoni). leucine homozygosity at elk prnp codon 132 has been associated with reduced cwd susceptibility. however, naturally acquired cwd has been detected in elk possessing the 132 leu/leu genotype. recent human and bovine studies indicate that prnp regulatory polymorphisms may also influence tse occurrence. therefore, we ...200718032463
association analysis of prnp gene region with chronic wasting disease in rocky mountain elk.abstract:201021087518
modeling routes of chronic wasting disease transmission: environmental prion persistence promotes deer population decline and extinction.chronic wasting disease (cwd) is a fatal disease of deer, elk, and moose transmitted through direct, animal-to-animal contact, and indirectly, via environmental contamination. considerable attention has been paid to modeling direct transmission, but despite the fact that cwd prions can remain infectious in the environment for years, relatively little information exists about the potential effects of indirect transmission on cwd dynamics. in the present study, we use simulation models to demonstr ...201121603638
experimental chronic wasting disease in wild type vm mice.chronic wasting disease (cwd) is a naturally occurring prion disease in north american deer (odocoileus species), rocky mountain elk (cervus elaphus nelsoni) and moose (alces alces). the disease was first confirmed in the republic of korea in 2001, and subsequent cases were diagnosed in 2004, 2005 and 2010. the experimental host range of cwd includes ferrets, several species of voles, white-footed mice, deer mice and syrian golden hamsters. in addition, cwd was transmitted to the transgenic mous ...201323708962
strain characterization of the korean cwd cases in 2001 and 2004.chronic wasting disease (cwd) has been recognized as a naturally occurring prion disease in north american deer (odocoileus species), rocky mountain elk (cervus elaphus nelsoni) and moose (alces alces). the disease was confirmed only in elk in the republic of korea in 2001, 2004 and 2005. epidemiological investigations showed that cwd was introduced via importation of infected elk from canada between 1994 and 1997. in spite of the increasing geographic distribution and host range of cwd, little ...201322972463
mineral licks: motivational factors for visitation and accompanying disease risk at communal use sites of elk and deer.free-ranging cervids acquire most of their essential minerals through forage consumption, though occasionally seek other sources to account for seasonal mineral deficiencies. mineral sources occur as natural geological deposits (i.e., licks) or as anthropogenic mineral supplements. in both scenarios, these sources commonly serve as focal sites for visitation. we monitored 11 licks in rocky mountain national park, north-central colorado, using trail cameras to quantify daily visitation indices (d ...201424711146
early detection of chronic wasting disease prions in urine of pre-symptomatic deer by real-time quaking-induced conversion assay.chronic wasting disease (cwd) is a prion disease of captive and free-ranging deer (odocoileus spp), elk (cervus elaphus nelsonii) and moose (alces alces shirasi). unlike in most other prion diseases, in cwd prions are shed in urine and feces, which most likely contributes to the horizontal transmission within and between cervid species. to date, cwd ante-mortem diagnosis is only possible by immunohistochemical detection of protease resistant prion protein (prp (sc) ) in tonsil or recto-anal muco ...201523764839
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