@article{giles_ferdous_halleran_yeatts_baynes_mzyk_2024, title={Flunixin meglumine tissue residues after intravenous administration in goats}, volume={10}, ISSN={["2297-1769"]}, DOI={10.3389/fvets.2023.1341779}, abstractNote={BackgroundFlunixin is commonly used in goats in an extra-label manner, indicating a significant need to determine withdrawal intervals for edible tissues.}, journal={FRONTIERS IN VETERINARY SCIENCE}, author={Giles, Claire B. and Ferdous, Farha and Halleran, Jennifer L. and Yeatts, Jim L. and Baynes, Ronald E. and Mzyk, Danielle A.}, year={2024}, month={Jan} } @article{halleran_sylvester_jacob_callahan_baynes_foster_2024, title={Impact of florfenicol dosing regimen on the phenotypic and genotypic resistance of enteric bacteria in steers}, volume={14}, ISSN={["2045-2322"]}, DOI={10.1038/s41598-024-55591-8}, abstractNote={Abstract}, number={1}, journal={SCIENTIFIC REPORTS}, author={Halleran, Jennifer and Sylvester, Hannah and Jacob, Megan and Callahan, Benjamin and Baynes, Ronald and Foster, Derek}, year={2024}, month={Feb} } @article{halleran_papich_li_lin_davis_maunsell_riviere_baynes_foster_2022, title={Update on withdrawal intervals following extralabel use of procaine penicillin G in cattle and swine}, volume={260}, ISSN={["1943-569X"]}, DOI={10.2460/javma.21.05.0268}, abstractNote={IntroductionExtralabel drug use (ELDU) is defined as the use of an FDA-approved medication in a manner that differs from what is provided on the label of the medication.1 Administration of the medication to a different species or at a different dose, volume, route, duration, indication, or frequency than indicated on the label is considered ELDU. Extralabel drug use also requires an extended withdrawal period to avoid violative residues, and practitioners can get advice on withdrawal intervals (WDIs) following ELDU from the Food Animal Residue Avoidance and Depletion Program (FARAD). Penicillin is one of the most commonly used}, number={1}, journal={Journal of the American Veterinary Medical Association}, author={Halleran, J.L. and Papich, M.G. and Li, M. and Lin, Z. and Davis, J. and Maunsell, F. and Riviere, J. and Baynes, R. and Foster, D.M.}, year={2022}, month={Jan}, pages={50–55} } @article{halleran_minch_slyvester_jacob_prange_baynes_foster_2021, title={Comparison of the Intestinal Pharmacokinetics of Two Different Florfenicol Dosing Regimens and Its Impact on the Prevalence and Phenotypic Resistance of E. coli and Enterococcus over Time}, volume={9}, ISSN={["2076-2607"]}, DOI={10.3390/microorganisms9091835}, abstractNote={In order to mitigate the food animal sector’s role in the growing threat of antimicrobial resistance (AMR), the World Health Organization (WHO) suggests the use of lower tier antimicrobials, such as florfenicol. Florfenicol has two dosing schemes used to treat primarily bovine respiratory disease. In this study, the objective was to characterize the plasma and gastrointestinal pharmacokinetics of each dosing regimen and assess the effect of these dosing regimens on the prevalence of resistant indicator bacteria over time. Twelve steers underwent abdominal surgery to facilitate the placement of ultrafiltration probes within the lumen of the ileum and colon, as well as placement of an interstitial probe. Following surgery, cattle were dosed with either 20 mg/kg IM every 48 h of florfenicol given twice (n = 6) or a single, subcutaneous dose (40 mg/kg, n = 6). Plasma, interstitial fluid, gastrointestinal ultrafiltrate, and feces were collected. Pharmacokinetic analysis demonstrated high penetration of florfenicol within the gastrointestinal tract for both the high and low dose group (300%, 97%, respectively). There was no significant difference noted between dosing groups in proportion or persistence of phenotypically resistant bacterial isolates; however, the percent of resistant isolates was high throughout the study period. The recommendation for the use of a lower tier antimicrobial, such as florfenicol, may allow for the persistence of co-resistance for antibiotics of high regulatory concern.}, number={9}, journal={MICROORGANISMS}, author={Halleran, Jennifer L. and Minch, Ryker and Slyvester, Hannah J. and Jacob, Megan E. and Prange, Timo and Baynes, Ronald and Foster, Derek M.}, year={2021}, month={Sep} } @article{halleran_callahan_jacob_sylvester_prange_papich_foster_2021, title={Effects of danofloxacin dosing regimen on gastrointestinal pharmacokinetics and fecal microbiome in steers}, volume={11}, ISSN={["2045-2322"]}, DOI={10.1038/s41598-021-90647-z}, abstractNote={Abstract}, number={1}, journal={SCIENTIFIC REPORTS}, author={Halleran, J. L. and Callahan, B. J. and Jacob, M. E. and Sylvester, H. J. and Prange, T. and Papich, M. G. and Foster, D. M.}, year={2021}, month={May} } @article{halleran_yau_paegelow_streeter_foster_2021, title={Mycobacterial Cell Wall Stimulant in the Treatment of Squamous Cell Carcinoma: A Case Series Regarding Treatment in Equine, Bovine and Caprine Patients}, volume={8}, ISSN={["2297-1769"]}, DOI={10.3389/fvets.2021.635800}, abstractNote={Squamous cell carcinoma (SCC) is a common dermatological neoplasia found in large animal species. Treatment options, such as surgery and cryotherapy may be difficult or not feasible. Alternative therapies, such as immunomodulating drugs, can potentially be used for companion large animals. The hypothesis of the following retrospective study is: following multiple intravenous and intralesional injections of a mycobacterial cell wall stimulant (MCW) regression of SCC in equine, bovine and caprine patients will be observed. In this observational-retrospective case series, patients included are 2 bovine, 2 caprine and 3 equine patients. The medical records at two different teaching veterinary hospitals were searched for cases with a positive histopathological diagnosis of squamous cell carcinoma that were subsequently treated with MCW, as either the sole therapy, or in conjunction with other therapies. Seven cases were included in this retrospective study. The median duration of therapy was 56.5 days, with 3 of the 7 patients being euthanized. Significant complications were seen in 3/7 patients. Repeated injections of a MCW may lead to reduction in lesion size of SCC in some cases, but long-term resolution is unlikely and the risk of significant complications is high; due to limited sample size and the variety in species, it is difficult to conclude if MCW is an effective therapy for SCC.}, journal={FRONTIERS IN VETERINARY SCIENCE}, author={Halleran, Jennifer and Yau, Katie and Paegelow, Jillian and Streeter, Robert and Foster, Derek}, year={2021}, month={Aug} } @article{yau_halleran_boileau_foster_2021, title={Retrospective study on the use of lidocaine constant rate infusions for the treatment of ileus in ruminants and camelids}, volume={9}, ISSN={["1939-1676"]}, DOI={10.1111/jvim.16262}, abstractNote={Abstract}, journal={JOURNAL OF VETERINARY INTERNAL MEDICINE}, author={Yau, Katie and Halleran, Jennifer and Boileau, Melanie and Foster, Derek}, year={2021}, month={Sep} }