Assessment of immunoglobulin heavy chain,immunoglobulin light chain,and T‐cell receptor clonality testing in the diagnosis of feline lymphoid neoplasia     

Emily D. Rout  Robert C. Burnett  Janna A. Yoshimoto  Paul R. Avery  Anne C. Avery 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2019,48(Z1):45-58

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Cold temperature/Biodur®/S10/von Hagens'—Silicone plastination technique     

Robert W. Henry  Gunther von Hagens  Gary Seamans 《Anatomia, histologia, embryologia》2019,48(6):532-538

Plastination is a late 20th century preservation methodology which replaces tissue fluid within a specimen with a curable polymer, such as silicone. Plastination yields superb, beautiful, well‐preserved specimens each with their own unique qualities. Silicone polymer is used around the world to preserve macroscopic cadavers or portions/organs thereof. Plastination was conceived by Dr. Gunther von Hagens, Universität Heidelberg, Heidelberg, Germany prior to 1977. Silicone polymer was the primary polymer which emerged initially for plastination. The Biodur^® line of silicone polymer and additives was chosen and manufactured because it has consistently produced the best plastinates since the inception of plastination. Since the discovery of silicone, generic and similar silicone polymers are known and used around the World by many industries and used in numerous products. The plastination process has four steps: Specimen preparation, Specimen dehydration and degreasing, Vacuum‐forced impregnation of specimens and Specimen hardening.  相似文献   

Co‐reactivity between related and unrelated environmental allergens in equine allergen‐specific IgE serology testing in the UK     

Johanna Forsyth  Richard E. Halliwell  Robert Harrand 《Veterinary dermatology》2019,30(6):544-e165

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Metabolism of the methoxychlor isostere,dianisylneopentane, in mouse,insects, and a model ecosystem     

Joel R. Coats  Robert L. Metcalf  Inder P. Kapoor 《Pesticide biochemistry and physiology》1974,4(2):201-211

Dianisylneopentane or 1,1-bis(p-methoxyphenyl)-2,2-dimethylpropane was metabolized largely by O-demethylation to form mono- and diphenol derivatives. Only a small percentage was degraded by α-hydroxylation and rearrangement. In the model ecosystem, dianisylneopentane reacted very similarly to methoxychlor, accumulating in fish to about the same extent and yielding a slightly higher ratio of polar to nonpolar metabolites. The neopentyl group proved to be approximately as stable in biological systems as the isosterically equivalent trichloromethyl group.  相似文献   

Investigations into carbamate insecticide selectivity: I: Evaluation of potential selectophores     

James R. Sanborn  An-horng Lee  Robert L. Metcalf 《Pesticide biochemistry and physiology》1974,4(1):67-76

In an effort to improve the generally unfavorable mouse/housefly toxicity ratio of most carbamate insecticides, potential selectophores (nitrile, carbamoyl oxime, carboxylic ester, or amide) were incorporated into a series of phenyl N-methylcarbamates. In addition to the insect and mouse toxicity determinations, the anticholinesterase activity of these compounds was determined for purified housefly head acetylcholinesterase and bovine erythrocyte acetylcholinesterase. The presence of these functional groups, in general, did not give enhanced selectivity ratios and, in one case, (o-N-methylcarbamoyloxyiminomethylphenyl N-methylcarbamate), a very unfavorable selectivity ratio of <0.03 was obtained. A mechanism implicating a Beckmann rearrangement is advanced to rationalize the high rodenticidal activity of this molecule. In general, the carbamates showed poor insecticidal activity when applied alone to the housefly, but, when the flies were pretreated with piperonyl butoxide, the compounds were quite toxic. Finally, an explanation is derived which seeks to justify the inability of these potential selectophores to improve the mouse/housefly toxidity ratio.  相似文献   

Veterinary Service District in Saskatchewan     

Robert Connell 《Canadian journal of veterinary research》1947,11(2):33-45

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A Disease Called Bullnose Occurring in Swine     

Robert Connell 《Canadian journal of veterinary research》1945,9(8):224-228

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SALE OF BACK NUMBERS OF "THE AUSTRALIAN VETERINARY JOURNAL"     

Robert I.  Taylor 《Australian veterinary journal》1943,19(4):123-123

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Antimicrobial resistance in Salmonella enterica subspecies enterica serovar Dublin from dairy source calves in the central San Joaquin Valley, California (1998-2002)     

Anna Catharina B Berge  Elizabeth Thornburg  John M Adaska  Robert B Moeller  Patricia C Blanchard 《Journal of veterinary diagnostic investigation》2008,20(4):497-500

The present study describes antimicrobial resistance patterns of Salmonella enterica subspecies enterica serovar Dublin (S. Dublin) in clinical submissions from calves and temporal and farm-type trends in antimicrobial resistance patterns of the isolates. A total of 300 isolates of S. Dublin were obtained from fecal or internal organs of calves fewer than 120 days of age originating from 84 dairies and 18 calf ranches from July 1998 to December 2002. The isolates were susceptibility tested to a panel of 10 antimicrobials using the disk diffusion assay. Temporal and farm-type trends in individual antimicrobial inhibition zone sizes were assessed and antimicrobial resistance patterns were described using cluster analysis. Isolates obtained from calf ranches compared with dairies exhibited decreased susceptibility to florfenicol, gentamicin, neomycin, sulfisoxazole, sulfamethoxazole/trimethoprim, and tetracycline. During the years 1998-2002, decreasing susceptibility was seen for ceftiofur, enrofloxacin, and sulfamethoxazole/trimethoprim. There were 20 different antimicrobial resistance patterns in the isolate set, indicating that S. Dublin has the ability to transfer and pick up resistance genes with relative ease. The trends seen in antimicrobial resistance in S. Dublin may likely be linked to antimicrobial drug use in young calves.  相似文献   

Western blot detection of PrP Sc in archived paraffin-embedded brainstem from scrapie-affected sheep     

Robert A Kunkle  Eric M Nicholson  Semakaleng Lebepe-Mazur  Dennis L Orcutt  Megan L Srinivas  Justin J Greenlee  David P Alt  Amir N Hamir 《Journal of veterinary diagnostic investigation》2008,20(4):522-526

Scrapie is a naturally occurring fatal neurodegenerative disease of adult sheep and goats, one of a group of mammalian diseases known as transmissible spongiform encephalopathies (TSE) or prion diseases. Immunoassays that identify disease-associated prion protein (PrP Sc) are integral to the diagnosis of scrapie and other prion diseases. Results obtained by either immunohistochemistry (IHC) or Western blot (WB) assay are generally adequate for the definitive diagnosis. Approved or accepted methods for WB diagnosis of TSEs requires the use of fresh or frozen nonfixed tissue samples, whereas formalin-fixed, paraffin-embedded tissue is required for the localization of PrP Sc by IHC. Because disparate processing methods are used for these accepted diagnostic techniques, separate tissue samples are collected from the same animal. Occasions arise in which there is either insufficient quantity of tissue available to complete analysis by both techniques or initial tissue processing is incompatible with one of the assays. Also, results between the assays may differ because of the vagaries of sampling, especially in case material that contains moderate-to-low levels of PrP Sc. The present article describes a method to conduct a WB assay from the same paraffin-embedded brainstem sample used for the IHC diagnosis of experimentally induced sheep scrapie.  相似文献