Publications by authors named "R M Larson"

Metaphylaxis or treating the entire population of cattle at arrival with an antimicrobial has been studied extensively in the cattle industry; however, little information is available on the impacts of treating only a proportion of the population with antimicrobials at arrival. The study objective was to determine potential associations between the proportion of animals in a pen treated with antimicrobial therapy with pen performance and nasopharyngeal microbiome. Yearling steers (n = 160) were randomly allocated to study pens (n = 40) and pens were systematically randomized to one of two antimicrobial treatments (META: all four head received tulathromycin; MIXED: two of four head randomly selected to receive tulathromycin).

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Absence of functional acid-α-glucosidase (GAA) leads to early-onset Pompe disease with cardiorespiratory and neuromuscular failure. A novel Pompe rat model ( ) was used to test the hypothesis that neonatal gene therapy with adeno-associated virus serotype 9 (AAV9) restores cardiorespiratory neuromuscular function across the lifespan. Temporal vein administration of AAV9-DES-GAA or sham (saline) injection was done on post-natal day 1; rats were studied at 6-12 months old.

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Background: Group peer telementoring supports interprofessional learning through multi-directional and synchronous engagement where experienced and knowledgeable individuals exchange guidance and support with differently experienced and knowledgeable individuals. A leading example of group peer telementoring among medical specialists and medical generalists is Project Extension for Community Healthcare Outcomes (Project ECHO), a rapidly spreading program with demonstrated learning outcomes among community-based medical generalists. Yet the multi-directional exchanges that characterize group peer telementoring interactions suggest that specialists facilitating sessions may also learn from the group experiences.

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Objective: To use a novel approach of targeted thoracic point-of-care ultrasound (TT-POCUS) of the caudodorsal right lung to determine potential associations between TT-POCUS measurements and the presence of interstitial pneumonia (IP) in feedyard cattle.

Methods: Cross-sectional study evaluated feedyard animals (n = 62; 358.4 ± 10.

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