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American Journal of Veterinary Research

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https://www.readbyqxmd.com/read/28541156/biomechanical-evaluation-of-two-plating-configurations-for-fixation-of-a-simple-transverse-caudal-mandibular-fracture-model-in-cats
#1
Christopher L Greiner, Frank J M Verstraete, Susan M Stover, Tanya C Garcia, Dustin Leale, Boaz Arzi
OBJECTIVE To evaluate biomechanical properties of intact feline mandibles, compared with those for mandibles with an experimentally created osteotomy that was stabilized with 1 of 2 internal fixation configurations. SAMPLE 20 mandibles from 10 adult feline cadavers. PROCEDURES An incomplete block study design was used to assign the mandibles of each cadaver to 2 of 3 groups (locking plate with locking screws [locking construct], locking plate with nonlocking screws [nonlocking construct], or intact). Within each cadaver, mandibles were randomly assigned to the assigned treatments...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28541155/characterization-of-aminoaciduria-and-hypoaminoacidemia-in-dogs-with-hepatocutaneous-syndrome
#2
John P Loftus, Sharon A Center, John M Lucy, Julie A Stanton, Sean P McDonough, Jeanine Peters-Kennedy, Kenneth A Arceneaux, Molly A Bechtold, Courtney L Bennett, Christina A Bradbury, Martha G Cline, Deborah L Hall-Fonte, Julie F Hammer-Landrum, Janice L Huntingford, Jennifer Marshall, Kristopher S Sharpe, Jessica L Redin, Samuel T Selva, Tomasina A Lucia
OBJECTIVE To characterize aminoaciduria and plasma amino acid concentrations in dogs with hepatocutaneous syndrome (HCS). ANIMALS 20 client-owned dogs of various breeds and ages. PROCEDURES HCS was definitively diagnosed on the basis of liver biopsy specimens (n = 12), gross and histologic appearance of skin lesions (4), and examination of skin and liver biopsy specimens (2) and presumptively diagnosed on the basis of cutaneous lesions with compatible clinicopathologic and hepatic ultrasonographic (honeycomb or Swiss cheese pattern) findings (2)...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28541154/assessment-of-agreement-among-diplomates-of-the-american-college-of-veterinary-anesthesia-and-analgesia-for-scoring-the-recovery-of-horses-from-anesthesia-by-use-of-subjective-grading-scales-and-development-of-a-system-for-evaluation-of-the-recovery-of-horses
#3
Stuart C Clark-Price, Kara M Lascola, Jennifer E Carter, Anderson F da Cunha, Lydia L Donaldson, Thomas J Doherty, Manuel Martin-Flores, Erik H Hofmeister, Stephanie C J Keating, Khursheed R Mama, Diane E Mason, Lysa P Posner, Hiroki Sano, Reza Seddighi, Andre C Shih, Ann B Weil, David J Schaeffer
OBJECTIVE To evaluate agreement among diplomates of the American College of Veterinary Anesthesia and Analgesia for scores determined by use of a simple descriptive scale (SDS) or a composite grading scale (CGS) for quality of recovery of horses from anesthesia and to investigate use of 3-axis accelerometry (3AA) for objective evaluation of recovery. ANIMALS 12 healthy adult horses. PROCEDURES Horses were fitted with a 3AA device and then were anesthetized. Eight diplomates evaluated recovery by use of an SDS, and 7 other diplomates evaluated recovery by use of a CGS...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28541153/evaluation-of-the-effects-of-a-4-7-mg-deslorelin-acetate-implant-on-egg-laying-in-cockatiels-nymphicus-hollandicus
#4
Noémie M Summa, David Sanchez-Migallon Guzman, Emma L Wils-Plotz, Nerisa E Riedl, Philip H Kass, Michelle G Hawkins
OBJECTIVE To evaluate effects of administration of a 4.7-mg deslorelin acetate implant on egg laying in healthy cockatiels (Nymphicus hollandicus). ANIMALS 52 cockatiels. PROCEDURES 26 breeding pairs (a female and its respective male in each pair) were selected on the basis of their history of egg laying. Female birds were sedated and received a 4.7-mg deslorelin acetate implant (n = 13) or placebo implant (13) in the subcutaneous tissues between the scapulae. Male and female birds of each breeding pair were placed in separate but adjacent cages...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28541152/biomechanical-comparison-of-a-3-5-mm-conical-coupling-plating-system-and-a-3-5-mm-locking-compression-plate-applied-as-plate-rod-constructs-to-an-experimentally-created-fracture-gap-in-femurs-of-canine-cadavers
#5
Giovanni Tremolada, Daniel D Lewis, Ken Luka Paragnani, Bryan P Conrad, Stanley E Kim, Antonio Pozzi
OBJECTIVE To compare stiffness and resistance to cyclic fatigue of two 3.5-mm locking system plate-rod constructs applied to an experimentally created fracture gap in femurs of canine cadavers. SAMPLE 20 femurs from cadavers of 10 mixed-breed adult dogs. PROCEDURES 1 femur from each cadaver was stabilized with a conical coupling plating system-rod construct, and the contralateral femur was stabilized with a locking compression plate (LCP)-rod construct. An intramedullary Steinmann pin was inserted in each femur...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28541151/morphological-evaluation-of-merkel-cells-and-small-lamellated-sensory-receptors-in-the-equine-foot
#6
Robert M Bowker, Lisa S Lancaster, Diane A Isbell
OBJECTIVE To examine the equine foot for the presence of sensory receptors including Merkel cells and small lamellated Pacinian-like corpuscles (SLPCs). SAMPLE Forefeet obtained from 7 horses following euthanasia for reasons other than foot disease. PROCEDURES Disarticulated feet were cut into either sagittal sections or cross sections and immersed in neutral-buffered 4% formalin. Following fixation, samples were obtained from the midline of the dorsal aspect of the hoof wall and from the frog (cuneus ungulae) between the apex and central sulcus...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28541150/evaluation-of-pathogen-specific-biomarkers-for-the-diagnosis-of-tuberculosis-in-white-tailed-deer-odocoileus-virginianus
#7
Sylvia I Wanzala, Mitchell V Palmer, Wade R Waters, Tyler C Thacker, Michelle Carstensen, Dominic A Travis, Srinand Sreevatsan
OBJECTIVE To develop a noninvasive biomarker-based detection system specific for Mycobacterium bovis for monitoring infection in wild animals. SAMPLE Serum samples from 8 experimentally infected yearling white-tailed deer (Odocoileus virginianus) and 3 age-matched control deer and from 393 Minnesota Department of Natural Resources hunter-harvested white-tailed deer in northwest Minnesota. PROCEDURES 8 yearling deer were inoculated with 2 × 10(8) CFUs of virulent M bovis strain 1315 (day 0), and sera were obtained on days 0, 19, 48, and 60; sera were obtained from 3 uninoculated control deer on those same days...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28541149/characterization-of-equine-vitamin-d-binding-protein-development-of-an-assay-and-assessment-of-plasma-concentrations-of-the-protein-in-healthy-horses-and-horses-with-gastrointestinal-disease
#8
Tina H Pihl, Stine Jacobsen, Dorthe T Olsen, Peter Højrup, Astrid Grosche, David E Freeman, Pia H Andersen, Gunnar Houen
OBJECTIVE To purify and characterize equine vitamin D-binding protein (VDBP) from equine serum and to evaluate plasma concentrations of VDBP in healthy horses and horses with gastrointestinal injury or disease. ANIMALS 13 healthy laboratory animals (8 mice and 5 rabbits), 61 healthy horses, 12 horses with experimentally induced intestinal ischemia and reperfusion (IR), and 59 horses with acute gastrointestinal diseases. PROCEDURES VDBP was purified from serum of 2 healthy horses, and recombinant equine VDBP was obtained through a commercial service...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28541147/pharmacokinetics-of-cefazolin-for-prophylactic-administration-to-dogs
#9
Omar J Gonzalez, Walter C Renberg, James K Roush, Butch KuKanich, Matt Warner
OBJECTIVE To evaluate pharmacokinetics of cefazolin after IV injection of cefazolin (22 mg/kg) and after simultaneous IV and IM injections of cefazolin (total dose, 44 mg/kg) to dogs. ANIMALS 12 adult Beagles. PROCEDURES Dogs (6/group) were assigned to receive a single injection of cefazolin (IV group; 22 mg/kg, IV) or simultaneous injections (IV + IM group; 22 mg/kg, IV, and 22 mg/kg, IM). Interstitial fluid was collected over a 5-hour period by use of ultrafiltration probes for pharmacokinetic analysis. RESULTS Mean cefazolin concentration in the interstitial fluid at 1, 1...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28541146/assessment-of-the-immunogenicity-of-rabies-vaccine-preserved-by-vaporization-and-delivered-to-the-duodenal-mucosa-of-gray-foxes-urocyon-cinereoargenteus
#10
Todd G Smith, Xianfu Wu, James A Ellison, Ashutosh Wadhwa, Richard Franka, Gregory L Langham, Brianna L Skinner, Cathleen A Hanlon, Victor L Bronshtein
OBJECTIVE To assess the immunogenicity of thermostable live-attenuated rabies virus (RABV) preserved by vaporization (PBV) and delivered to the duodenal mucosa of a wildlife species targeted for an oral vaccination program. ANIMALS 8 gray foxes (Urocyon cinereoargenteus). PROCEDURES Endoscopy was used to place RABV PBV (n = 3 foxes), alginate-encapsulated RABV PBV (3 foxes), or nonpreserved RABV (2 foxes) vaccine into the duodenum of foxes. Blood samples were collected weekly to monitor the immune response...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28541145/pharmacokinetics-of-butorphanol-tartrate-in-a-long-acting-poloxamer-407-gel-formulation-administered-to-hispaniolan-amazon-parrots-amazona-ventralis
#11
Delphine Laniesse, David Sanchez-Migallon Guzman, Heather K Knych, Dale A Smith, Cornelia Mosley, Joanne R Paul-Murphy, Hugues Beaufrère
OBJECTIVE To determine pharmacokinetics of butorphanol tartrate incorporated into poloxamer 407 (P407) after SC administration to Hispaniolan Amazon parrots (Amazona ventralis). ANIMALS 11 adult Hispaniolan Amazon parrots (6 males and 5 females; 11 to 27 years old). PROCEDURES A sterile formulation of butorphanol in P407 (But-P407) 25% (percentage determined as [weight of P407/weight of diluent] × 100]) was created (8.3 mg/mL). Five preliminary experiments (2 birds/experiment) were performed to determine the ideal dose for this species...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28541144/in-vitro-characterization-of-a-formulation-of-butorphanol-tartrate-in-a-poloxamer-407-base-intended-for-use-as-a-parenterally-administered-slow-release-analgesic-agent
#12
Delphine Laniesse, Dale A Smith, Heather K Knych, Cornelia Mosley, David Sanchez-Migallon Guzman, Hugues Beaufrère
OBJECTIVE To assess rheological properties and in vitro diffusion of poloxamer 407 (P407) and butorphanol-P407 (But-P407) hydrogels and to develop a sustained-release opioid formulation for use in birds. SAMPLE P407 powder and a commercially available injectable butorphanol tartrate formulation (10 mg/mL). PROCEDURES P407 and But-P407 gels were compounded by adding water or butorphanol to P407 powder. Effects of various concentrations of P407 (20%, 25% and 30% [{weight of P407/weight of diluent} × 100]), addition of butorphanol, and sterilization through a microfilter on rheological properties of P407 were measured by use of a rheometer...
June 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28441056/evaluation-of-gastric-emptying-time-gastrointestinal-transit-time-sedation-score-and-nausea-score-associated-with-intravenous-constant-rate-infusion-of-lidocaine-hydrochloride-in-clinically-normal-dogs
#13
Rebecca A Johnson, Katharine R Kierski, Brian G Jones
OBJECTIVE To quantify nausea and sedation scores, gastric emptying time, and gastrointestinal transit time after IV administration of a lidocaine hydrochloride bolus followed by a constant rate infusion (CRI) in clinically normal dogs. ANIMALS 6 Beagles. PROCEDURES In a crossover study, dogs were fed thirty 1.5-mm barium-impregnated spheres (BIPS) and received a saline (0.9% NaCl) solution bolus (0.05 mL/kg) IV (time 0) followed by a CRI at 10 mL/h, a lidocaine bolus (1 mg/kg) IV followed by a CRI at 25 μg/kg/min, or a lidocaine bolus (1 mg/kg) IV followed by a CRI at 50 μg/kg/min; CRIs were for 12 hours...
May 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28441055/ex-vivo-biomechanical-evaluation-of-pigeon-columba-livia-cadaver-intact-humeri-and-ostectomized-humeri-stabilized-with-caudally-applied-titanium-locking-plate-or-stainless-steel-nonlocking-plate-constructs
#14
Brett G Darrow, Jeffrey J Biskup, Joseph P Weigel, Michael P Jones, Xie Xie, Peter K Liaw, Josh L Tharpe, Aashish Sharma, Dayakar Penumadu
OBJECTIVE To evaluate mechanical properties of pigeon (Columba livia) cadaver intact humeri versus ostectomized humeri stabilized with a locking or nonlocking plate. SAMPLE 30 humeri from pigeon cadavers. PROCEDURES Specimens were allocated into 3 groups and tested in bending and torsion. Results for intact pigeon humeri were compared with results for ostectomized humeri repaired with a titanium 1.6-mm screw locking plate or a stainless steel 1.5-mm dynamic compression plate; the ostectomized humeri mimicked a fracture in a thin cortical bone...
May 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28441054/biomechanical-and-histologic-evaluation-of-the-effects-of-underwater-treadmill-exercise-on-horses-with-experimentally-induced-osteoarthritis-of-the-middle-carpal-joint
#15
Melissa R King, Kevin K Haussler, Chris E Kawcak, C Wayne McIlwraith, Raoul F Reiser, David D Frisbie, Natasha M Werpy
OBJECTIVE To evaluate the effects of exercise in an underwater treadmill (UWT) on forelimb biomechanics and articular histologic outcomes in horses with experimentally induced osteoarthritis of the middle carpal joint. ANIMALS 16 horses. PROCEDURES An osteochondral fragment was induced arthroscopically (day 0) in 1 middle carpal joint of each horse. Beginning on day 15, horses were assigned to exercise in a UWT or in the UWT without water (simulating controlled hand walking) at the same speed, frequency, and duration...
May 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28441053/evaluation-of-oxygen-administration-with-a-high-flow-nasal-cannula-to-clinically-normal-dogs
#16
Jennifer L Daly, Christine L Guenther, Jamie M Haggerty, Iain Keir
OBJECTIVE To evaluate the safety and efficacy of oxygen administration by use of a high-flow nasal cannula (HFNC) in sedated clinically normal dogs. ANIMALS 6 healthy adult dogs undergoing routine dental prophylaxis. PROCEDURES Dogs were sedated with butorphanol tartrate and dexmedetomidine. An esophageal balloon catheter was inserted into the esophagus, a double-pronged nasal cannula was inserted into the nares, and a catheter was inserted into the dorsal pedal artery. Dogs were positioned in right lateral recumbency...
May 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28441052/effects-of-hyaluronan-alone-or-in-combination-with-chondroitin-sulfate-and-n-acetyl-d-glucosamine-on-lipopolysaccharide-challenge-exposed-equine-fibroblast-like-synovial-cells
#17
Allison H Kilborne, Hayam Hussein, Alicia L Bertone
OBJECTIVE To investigate effects of hyaluronic acid (HA) or HA combined with chondroitin sulfate (CS) and N-acetyl-d-glucosamine (NAG) by use of a lipopolysaccharide (LPS) in vitro method. SAMPLE Monolayer cultures of synovial cells from 4 adult horses. PROCEDURES Synovial cell cultures were untreated or treated with HA alone or HA-CS-NAG for 24 hours, subsequently unchallenged or challenge-exposed with 2 LPS concentrations (20 and 50 ng/mL) for 2 hours, and retreated with HA or HA-CS-NAG for another 24 hours...
May 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28441051/diffusion-weighted-magnetic-resonance-imaging-of-the-brain-of-neurologically-normal-dogs
#18
Megan J MacLellan, Christopher P Ober, Daniel A Feeney, Carl R Jessen
OBJECTIVE To acquire MRI diffusion data (apparent diffusion coefficient [ADC] and fractional anisotropy [FA] values, including separate measures for gray and white matter) at 3.0 T for multiple locations of the brain of neurologically normal dogs. ANIMALS: 13 neurologically normal dogs recruited from a group of patients undergoing tibial plateau leveling osteotomy. PROCEDURES: MRI duration ranged from 20 to 30 minutes, including obtaining preliminary images to exclude pathological changes (T2-weighted fluid-attenuated inversion recovery transverse and dorsal images) and diffusion-weighted images...
May 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28441050/comparison-of-platelet-function-and-viscoelastic-test-results-between-healthy-dogs-and-dogs-with-naturally-occurring-chronic-kidney-disease
#19
Alicia Dudley, Julie K Byron, Mary Jo Burkhard, Emma Warry, Julien Guillaumin
OBJECTIVE To compare platelet function and viscoelastic test results between healthy dogs and dogs with chronic kidney disease (CKD) to assess whether dogs with CKD have platelet dysfunction and altered blood coagulation. ANIMALS 10 healthy control dogs and 11 dogs with naturally occurring CKD. PROCEDURES Blood and urine were collected once from each dog for a CBC, serum biochemical analysis, urinalysis, and determination of the urine protein-to-creatinine ratio, prothrombin time, activated partial thromboplastin time, plasma fibrinogen concentration, and antithrombin activity...
May 2017: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/28441048/influence-of-body-weight-and-body-conformation-on-the-pressure-volume-curve-during-capnoperitoneum-in-dogs
#20
Melissa J Dorn, Barbara A Bockstahler, Gilles P Dupré
OBJECTIVE To evaluate the pressure-volume relationship during capnoperitoneum in dogs and effects of body weight and body conformation. ANIMALS 86 dogs scheduled for routine laparoscopy. PROCEDURES Dogs were allocated into 3 groups on the basis of body weight. Body measurements, body condition score, and body conformation indices were calculated. Carbon dioxide was insufflated into the abdomen with a syringe, and pressure was measured at the laparoscopic cannula. Volume and pressure data were processed, and the yield point, defined by use of a cutoff volume (COV) and cutoff pressure (COP), was calculated...
May 2017: American Journal of Veterinary Research
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