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American Journal of Veterinary Research

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https://www.readbyqxmd.com/read/27901396/effects-of-dobutamine-hydrochloride-on-cardiovascular-function-in-horses-anesthetized-with-isoflurane-with-or-without-acepromazine-maleate-premedication
#1
Mara F Schier, Anthea L Raisis, Cristy J Secombe, Giselle Hosgood, Gabrielle C Musk, Guy D Lester
OBJECTIVE To determine the effects of acepromazine maleate premedication on cardiovascular function before and after infusion of dobutamine hydrochloride for 30 minutes in isoflurane-anesthetized horses. ANIMALS 6 healthy adult horses. PROCEDURES Each horse was anesthetized once following premedication with acepromazine (0.02 mg/kg, IV) administered 30 minutes prior to anesthetic induction (ACP+ treatment) and once without premedication (ACP- treatment). Anesthesia was induced with IV administration of xylazine hydrochloride (0...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901395/javma-news-digest
#2
(no author information available yet)
No abstract text is available yet for this article.
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901394/computed-tomographic-anatomy-of-the-heads-of-blue-and-gold-macaws-ara-ararauna-african-grey-parrots-psittacus-erithacus-and-monk-parakeets-myiopsitta-monachus
#3
Irene A Veladiano, Tommaso Banzato, Luca Bellini, Alessandro Montani, Salvatore Catania, Alessandro Zotti
OBJECTIVE To create an atlas of the normal CT anatomy of the head of blue-and-gold macaws (Ara ararauna), African grey parrots (Psittacus erithacus), and monk parakeets (Myiopsitta monachus). ANIMALS 3 blue-and-gold macaws, 5 African grey parrots, and 6 monk parakeets and cadavers of 4 adult blue-and-gold macaws, 4 adult African grey parrots, and 7 monk parakeets. PROCEDURES Contrast-enhanced CT imaging of the head of the live birds was performed with a 4-multidetector-row CT scanner. Cadaveric specimens were stored at -20°C until completely frozen, and each head was then sliced at 5-mm intervals to create reference cross sections...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901393/comparison-of-desired-radiographic-advancement-distance-and-true-advancement-distance-required-for-patellar-tendon-tibial-plateau-angle-reduction-to-the-ideal-90%C3%A2-in-dogs-by-use-of-the-modified-maquet-technique
#4
Paul Pillard, Veronique Livet, Quentin Cabon, Camille Bismuth, Juliette Sonet, Denise Remy, Didier Fau, Claude Carozzo, Eric Viguier, Thibaut Cachon
OBJECTIVE To evaluate the validity of 2 radiographic methods for measurement of the tibial tuberosity advancement distance required to achieve a reduction in patellar tendon-tibial plateau angle (PTA) to the ideal 90° in dogs by use of the modified Maquet technique (MMT). SAMPLE 24 stifle joints harvested from 12 canine cadavers. PROCEDURES Radiographs of stifle joints placed at 135° in the true lateral position were used to measure the required tibial tuberosity advancement distance with the conventional (A(M)) and correction (A(E)) methods...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901392/assessment-of-frailty-in-aged-dogs
#5
Julie Hua, Sara Hoummady, Claude Muller, Jean-Louis Pouchelon, Marc Blondot, Caroline Gilbert, Loic Desquilbet
OBJECTIVE To define a frailty-related phenotype-a clinical syndrome associated with the aging process in humans-in aged dogs and to investigate its association with time to death. ANIMALS 116 aged guide dogs. PROCEDURES Dogs underwent a clinical geriatric assessment (CGA) and were followed to either time of death or the study cutoff date. A 5-component clinical definition of a frailty phenotype was derived from clinical items included in a geriatric health evaluation scoresheet completed by veterinarians during the CGA...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901391/comparison-of-antibacterial-effects-among-three-foams-used-with-negative-pressure-wound-therapy-in-an-ex-vivo-equine-perfused-wound-model
#6
Lore L Van Hecke, Maarten Haspeslagh, Katleen Hermans, Ann M Martens
OBJECTIVE To compare antibacterial effects among 3 types of foam used with negative-pressure wound therapy (NPWT) in an ex vivo equine perfused wound model. SAMPLES Abdominal musculocutaneous flaps from 6 equine cadavers. PROCEDURES Each musculocutaneous flap was continuously perfused with saline (0.9% NaCl) solution. Four 5-cm circular wounds were created in each flap and contaminated with 10(6) CFUs of both Pseudomonas aeruginosa and methicillin-resistant Staphylococcus aureus (MRSA). After a 1-hour incubation period, 1 of 4 treatments (NPWT with silver-impregnated polyurethane foam [NPWT-AgPU], polyurethane foam [NPWT-PU], or polyvinyl alcohol foam [NPWT-PVA] or a nonadherent dressing containing polyhexamethylene biguanide without NPWT [control]) was randomly applied to each wound...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901390/effects-of-various-antiplatelet-drugs-on-ex-vivo-platelet-activation-induced-by-equine-herpesvirus-type-1
#7
Daniela Hernandez, Wee Ming Yeo, Marjory B Brooks, Sally L Ness, Thomas J Divers, Tracy Stokol
OBJECTIVE To evaluate the effects of treatment of horses with standard platelet inhibitors on ex vivo inhibition of platelet activation by equine herpesvirus type I (EHV-I). ANIMALS II healthy adult horses. PROCEDURES In a double-blinded, placebo-controlled crossover study, horses were treated orally for 5 days with theophylline (5 mg/kg, q 12 h), pentoxifylline (10 mg/kg, q 12 h), clopidogrel bisulfate (4 mg/kg, q 24 h), acetylsalicylic acid (20 mg/kg, q 24 h), or placebo. Horses received all treatments, each separated by a 3-week washout period...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901389/population-pharmacokinetics-of-a-single-dose-of-meloxicam-after-oral-and-intramuscular-administration-to-captive-lesser-flamingos-phoeniconaias-minor
#8
Martín A Zordan, Mark G Papich, Ashley A Pich, Katy M Unger, Carlos R Sánchez
OBJECTIVE To determine the pharmacokinetics of a single dose of meloxicam after IM and oral administration to healthy lesser flamingos (Phoeniconaias minor) by use of a population approach. ANIMALS 16 healthy captive lesser flamingos between 1 and 4 years of age. PROCEDURES A single dose of meloxicam (0.5 mg/kg) was administered IM to each bird, and blood samples were collected from birds at 3 (n = 13 birds), 2 (2), or 1 (1) selected point between 0 and 13 hours after administration, with samples collected from birds at each point...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901388/systemic-and-ocular-immune-responses-in-cattle-following-intranasal-vaccination-with-precipitated-or-partially-solubilized-recombinant-moraxella-bovis-cytotoxin-adjuvanted-with-polyacrylic-acid
#9
John A Angelos, Munashe Chigerwe, Judy M Edman, John F Hess
OBJECTIVE To evaluate changes in systemic and ocular antibody responses of steers following intranasal vaccination with precipitated or partially solubilized recombinant Moraxella bovis cytotoxin (MbxA). ANIMALS 13 Angus steers with ages ranging from 318 to 389 days and weights ranging from 352 to 437 kg. PROCEDURES Steers were assigned to receive 500 μg of a precipitated (MbxA-P; n = 5) or partially solubilized (MbxA-S; 5) recombinant MbxA subunit adjuvanted with polyacrylic acid. A control group (n = 3) received the adjuvant alone...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901387/quantification-and-characterization-of-pleural-fluid-in-healthy-dogs-with-thoracostomy-tubes
#10
Germaine C Hung, M Casey Gaunt, Joseph E Rubin, Gregory S Starrak, Sherisse A Sakals
OBJECTIVE To quantify and characterize pleural fluid collected from healthy dogs after placement of a thoracostomy tube (TT). ANIMALS 8 healthy Coonhound-cross dogs (mean ± SD weight, 27.2 ± 1.6 kg). PROCEDURES Thoracic CT of each dog was performed before placement of a TT and daily thereafter for 7 days. Thoracic fluid volume was calculated from CT images. Effusion was aspirated when detected; volume was recorded, and cytologic analysis and bacterial culture were performed. RESULTS Mean ± SD volume of pleural effusion detected by CT was 1...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901386/comparison-of-four-methods-for-generating-decellularized-equine-synovial-extracellular-matrix
#11
Nathalie A Reisbig, Hayam A Hussein, Erin Pinnell, Alicia L Bertone
OBJECTIVE To evaluate 4 methods for generating decellularized equine synovial extracellular matrix. SAMPLE Villous synovium harvested from the femoropatellar and medial femorotibial joints of 4 healthy adult horses < 7 years of age. Synovial samples were frozen (-80°C) until used. PROCEDURES Synovial samples were thawed and left untreated (control) or decellularized with 1 of 4 methods (15 samples/horse/method): incubation in 0.1% peracetic acid (PAA), incubation in 0.1% PAA twice, incubation in 1% Triton X-100 followed by incubation in DNase, and incubation in 2M NaCl followed by incubation in DNase...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901385/concentrations-of-thromboxane-metabolites-in-feline-urine
#12
Brittany Heggem-Perry, Stephanie A Smith, Maureen A McMichael, Mauria O'Brien, Anne Saunders, Jason Tarricone
OBJECTIVE To determine the predominant thromboxane (TX) metabolite in urine of healthy cats, evaluate whether the method of sample collection would impact concentration of that metabolite, and propose a reference interval for that metabolite in urine of healthy cats. ANIMALS 17 cats (11 purpose-bred domestic shorthair cats, 5 client-owned domestic shorthair cats, and 1 client-owned Persian cat). PROCEDURES All cats were deemed healthy on the basis of results for physical examination, a CBC, serum biochemical analysis, urinalysis, and measurement of prothrombin time and activated partial thromboplastin time...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901384/pharmacokinetics-of-zonisamide-following-rectal-administration-to-healthy-dogs
#13
Jennifer R Michaels, Amy J Hodshon, William B Thomas, Dawn M Boothe, Lindsay Williams
OBJECTIVE To evaluate the pharmacokinetics of zonisamide following rectal administration of 20 or 30 mg/kg suspended in sterile water or polyethylene glycol (PEG) to healthy dogs and determine whether either dose resulted in plasma zonisamide concentrations within the recommended therapeutic target range (10 to 40 μg/mL). ANIMALS 8 healthy mixed-breed dogs. PROCEDURES Each dog received each of 2 doses (20 or 30 mg/kg) of zonisamide suspended in each of 2 delivery substrates (sterile water or PEG) in a randomized crossover study with a 7-day washout period between phases...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901383/security-and-biomechanical-strength-of-three-end-pass-configurations-for-the-terminal-end-of-intradermal-closures-performed-with-unidirectional-barbed-suture-material-in-dogs
#14
Penny J Regier, Daniel D Smeak, Kirk C McGilvray
OBJECTIVE To compare security of continuous intradermal suture lines closed by use of barbed suture with 3 end-pass configurations or without an end-pass configuration. SAMPLE 40 full-thickness, 4-cm-long, parasagittal wounds in canine cadavers. PROCEDURES Each continuous intradermal closure was terminated with 1 of 3 end-pass techniques or without an end-pass configuration (control group). A servohydraulic machine applied tensile load perpendicular to the long axis of the suture line. A load-displacement curve was generated for each sample; maximum load, displacement, stiffness, mode of construct failure, and load at first suture slippage at termination (ie, terminal end of the suture line) were recorded...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27901382/assessment-of-in-vitro-release-of-carboplatin-from-six-carrier-media
#15
Marije Risselada, Denis J Marcellin-Little, Kristen M Messenger, Emily Griffith, Gigi S Davidson, Mark G Papich
OBJECTIVE To investigate in vitro carboplatin release from 6 carrier media. SAMPLE 6 carboplatin-containing carrier media. PROCEDURES An in vitro release study was performed with 6 commercially available carrier media: a hemostatic gelatin sponge, a poloxamer copolymer gel, and 2 sizes (3 and 4.8 mm in diameter) of beads molded from each of 2 commercial calcium sulfate products. All carrier media contained 10 mg of carboplatin. Carrier media specimens were placed in 37°C PBS solution for 96 hours. Carboplatin concentrations in PBS solution were measured by use of high-performance liquid chromatography at 15 time points to calculate the amount and proportion of carboplatin released from each specimen...
December 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27805451/retrograde-catheterization-of-the-urinary-bladder-in-healthy-male-goats-by-use-of-angiographic-catheters
#16
Emily J Reppert, Robert N Streeter, Katharine M Simpson, Jared D Taylor
OBJECTIVE To identify and evaluate 3 types of angiographic catheters for retrograde urinary bladder catheterization in healthy male goats. ANIMALS 12 sexually intact yearling Alpine-cross bucks. PROCEDURES Three 5F angiographic catheters of the same length (100 cm) and diameter (0.17 cm) but differing in curvature at the tip were labeled A (straight tip), B (tip bent in 1 place), and C (tip bent in 2 places). During a single anesthetic episode, attempts were made to blindly pass each catheter into the urinary bladder of each goat...
November 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27805450/elution-of-platinum-from-carboplatin-impregnated-calcium-sulfate-hemihydrate-beads-in-vitro
#17
Rachel J Tulipan, Heidi Phillips, Laura D Garrett, Levent Dirikolu, Mark A Mitchell
OBJECTIVE To characterize the elution of platinum from carboplatin-impregnated calcium sulfate hemihydrate (CSH) beads in vitro. SAMPLE 60 carboplatin-impregnated CSH beads and 9 CSH beads without added carboplatin (controls). PROCEDURES Carboplatin-impregnated CSH beads (each containing 4.6 mg of carboplatin [2.4 mg of platinum]) were placed into separate 10-mL plastic tubes containing 5 mL of PBSS in groups of 1, 3, 6, or 10; 3 control beads were placed into a single tube of PBSS at the same volume. Experiments were conducted in triplicate at 37°C and a pH of 7...
November 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27805449/biomechanical-assessment-of-the-effects-of-vertebral-distraction-fusion-techniques-on-the-adjacent-segment-of-canine-cervical-vertebrae
#18
Takaharu Hakozaki, Tomu Ichinohe, Nobuo Kanno, Takuya Yogo, Yasuji Harada, Tadashi Inaba, Yuichi Kasai, Yasushi Hara
OBJECTIVE To assess effects of vertebral distraction-fusion techniques at a treated segment (C5-C6) and an adjacent segment (C4-C5) of canine cervical vertebrae. SAMPLE Cervical vertebrae harvested from cadavers of 10 skeletally mature Beagles. PROCEDURES Three models (intact, titanium plate, and polymethylmethacrylate [PM MA]) for stabilization of the caudal region of the cervical vertebrae (C4 through C7) were applied to the C5-C6 vertebral segment sequentially on the same specimens. Biomechanical assessments with flexion-extension, lateral bending, and axial rotational tests were conducted after each procedure...
November 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27805448/population-pharmacokinetics-of-enrofloxacin-in-purple-sea-stars-pisaster-ochraceus-following-an-intracoelomic-injection-or-extended-immersion
#19
Justin F Rosenberg, Martin Haulena, Brianne E Phillips, Craig A Harms, Gregory A Lewbart, Lesanna L Lahner, Mark G Papich
OBJECTIVE To determine population pharmacokinetics of enrofloxacin in purple sea stars (Pisaster ochraceus) administered an intracoelomic injection of enrofloxacin (5 mg/kg) or immersed in an enrofloxacin solution (5 mg/L) for 6 hours. ANIMALS 28 sea stars of undetermined age and sex. PROCEDURES The study had 2 phases. Twelve sea stars received an intracoelomic injection of enrofloxacin (5 mg/kg) or were immersed in an enrofloxacin solution (5 mg/L) for 6 hours during the injection and immersion phases, respectively...
November 2016: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/27805447/evaluation-of-two-platelet-rich-plasma-processing-methods-and-two-platelet-activation-techniques-for-use-in-llamas-and-alpacas
#20
Stacy A Semevolos, Cori D Youngblood, Stephanie K Grissom, M Elena Gorman, Maureen K Larson
OBJECTIVE To evaluate 2 processing methods (commercial kit vs conical tube centrifugation) for preparing platelet rich plasma (PRP) for use in llamas and alpacas. SAMPLES Blood samples (30 mL each) aseptically collected from 6 healthy llamas and 6 healthy alpacas. PROCEDURES PRP was prepared from blood samples by use of a commercial kit and by double-step conical tube centrifugation. A CBC was performed for blood and PRP samples. Platelets in PRP samples were activated by means of a freeze-thaw method with or without 23mM CaCl2, and concentrations of platelet-derived growth factor-BB and transforming growth factor-β1 were measured...
November 2016: American Journal of Veterinary Research
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