EFFECTS OF ACEPROMAZINE ON THREE-PHASE ^99mTc-MDP BONE IMAGING IN 11 HORSES     

Mauricio Solano  Jeremy Welcome  Karen Johnson 《Veterinary radiology & ultrasound》2005,46(5):437-442

Horses undergoing skeletal scintigraphy can have decreased radiopharmaceutical bone uptake in the limbs. This reduces the diagnostic value of the scan. The aim of the present study was to measure the changes in count density caused by vasodilatation and increased blood flow associated with intravenous injection of acepromazine during bone scintigraphy in normal horses. A three-phase bone scan was performed twice in 11 adult horses to study the effects of acepromazine on the count density of the resultant scintigrams. With acepromazine, there was a statistically significant mean difference of 12 s for initial blood flow and 21 s for peak flow. The time to initial blood flow and time to peak flow occurred earlier for the scans in which acepromazine was used. There were no significant differences in the bone to soft tissue ratios during the soft tissue and bone phases of the scan between procedures. Intravenous administration of acepromazine increases peripheral blood flow causing an earlier onset of the vascular phase during the three-phase bone scan. Acepromazine did not increase the count density of the bone phase scintigrams. As expected, the vasodilatation and increased blood flow associated with intravenous injection of acepromazine affected the count density of the vascular phase of the bone scan.  相似文献   

Ecological effects of climate fluctuations   总被引：3，自引：0，他引：3  

Stenseth NC  Mysterud A  Ottersen G  Hurrell JW  Chan KS  Lima M 《Science (New York, N.Y.)》2002,297(5585):1292-1296

Climate influences a variety of ecological processes. These effects operate through local weather parameters such as temperature, wind, rain, snow, and ocean currents, as well as interactions among these. In the temperate zone, local variations in weather are often coupled over large geographic areas through the transient behavior of atmospheric planetary-scale waves. These variations drive temporally and spatially averaged exchanges of heat, momentum, and water vapor that ultimately determine growth, recruitment, and migration patterns. Recently, there have been several studies of the impact of large-scale climatic forcing on ecological systems. We review how two of the best-known climate phenomena-the North Atlantic Oscillation and the El Ni?o-Southern Oscillation-affect ecological patterns and processes in both marine and terrestrial systems.  相似文献   

Incidentally detected heart murmurs in dogs and cats: executive summary 2015          下载免费PDF全文

E. Côté  N. J. Edwards  S. J. Ettinger  V. L. Fuentes  K. A. MacDonald  B. A. Scansen  D. D. Sisson  J. A. Abbott 《The Journal of small animal practice》2015,56(10):593-594

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Circulating concentrations of a marker of type I collagen metabolism are associated with hypertrophic cardiomyopathy mutation status in ragdoll cats          下载免费PDF全文

K. Borgeat  J. Dudhia  V. Luis Fuentes  D. J. Connolly 《The Journal of small animal practice》2015,56(6):360-365

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Alimentary squamous cell carcinoma in psittacines: 12 cases and review of the literature     

Viviana Gonzalez-Astudillo  Asl&#x; Mete  Mauricio A. Navarro  Francisco A. Uzal  Javier Asin 《Journal of veterinary diagnostic investigation》2021,33(5):906

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Intra-specific patterns of δ13C,growth and wood density variation at sites of contrasting precipitation with implications for modelling carbon sequestration of tropical tree species     

Halder  Nirmol Kumar  Chowdhury  Md. Qumruzzaman  Fuentes  David  Possell  Malcolm  Merchant  Andrew 《Agroforestry Systems》2021,95(8):1429-1443

Agroforestry Systems - Tropical agroforestry practices play a crucial role in mitigating global climate change by absorbing CO2 from the atmosphere through photosynthesis and storing carbon in...  相似文献   

Comparison of computed tomography pulmonary angiography and point‐of‐care tests for pulmonary thromboembolism diagnosis in dogs     

D. L. Chan  L. Benigni  L. Kellett‐Gregory  V. L. Fuentes 《The Journal of small animal practice》2014,55(4):190-197

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Genomic analysis of influenza A virus from captive wild boars in Brazil reveals a human-like H1N2 influenza virus     

Natalha Biondo  Rejane Schaefer  Danielle Gava  Mauricio E. Cantão  Simone Silveira  Marcos A.Z. Mores  Janice R. Ciacci-Zanella  David E.S.N. Barcellos 《Veterinary microbiology》2014

Influenza is a viral disease that affects human and several animal species. In Brazil, H1N1, H3N2 and 2009 pandemic H1N1 A(H1N1)pdm09 influenza A viruses (IAV) circulate in domestic swine herds. Wild boars are also susceptible to IAV infection but in Brazil until this moment there are no reports of IAV infection in wild boars or in captive wild boars populations. Herein the occurrence of IAV in captive wild boars with the presence of lung consolidation lesions during slaughter was investigated. Lung samples were screened by RT-PCR for IAV detection. IAV positive samples were further analyzed by quantitative real-time PCR (qRRT-PCR), virus isolation, genomic sequencing, histopathology and immunohistochemistry (IHC). Eleven out of 60 lungs (18.3%) were positive for IAV by RT-PCR and seven out of the eleven were also positive for A(H1N1)pdm09 by qRRT-PCR. Chronic diffuse bronchopneumonia was observed in all samples and IHC analysis was negative for influenza A antigen. Full genes segments of H1N2 IAV were sequenced using Illumina's genome analyzer platform (MiSeq). The genomic analysis revealed that the HA and NA genes clustered with IAVs of the human lineage and the six internal genes were derived from the H1N1pdm09 IAV. This is the first report of a reassortant human-like H1N2 influenza virus infection in captive wild boars in Brazil and indicates the need to monitor IAV evolution in Suidae populations.  相似文献   

Arterial Thromboembolism in 250 Cats in General Practice: 2004–2012     

K. Borgeat  J. Wright  O. Garrod  J.R. Payne  V.L. Fuentes 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2014,28(1):102-108

Background

Population characteristics and outcome of cats with arterial thromboembolism (ATE) managed in general practice (GP) have been poorly described.

Hypothesis

Cats with ATE presenting to GP are usually euthanized at presentation, but survival times >1 year are possible.

Animals

Cats with ATE managed by 3 GP clinics in the United Kingdom.

Methods

Records of cases presenting to GP over a 98‐month period (2004–2012) were reviewed. Cats with an antemortem diagnosis of limb ATE were included. Outcome information was obtained.

Results

Over 98 months, 250 cats were identified with ATE. Prevalence was approximately 0.3%. At presentation, 153 cats (61.2%) were euthanized, with 68/97 (70.1%) of the remaining cats (27.2% of the total population) surviving >24 hours after presentation. Of these, 30/68 (44.1%) survived for at least 7 days. Hypothermia (HR, 1.44; 95% CI, 1.002–2.07; P = .049) and management by Clinic 2 (HR, 5.53; 95% CI, 1.23–24.8; P = .026) were independent predictors of 24‐hour euthanasia or death. For cats surviving >24 hours, hypothermia (HR, 2.25; 95% CI, 1.12–4.48; P = .021) and failure to receive aspirin, clopidogrel, or both (HR, 8.26; 95% CI, 1.39–50; P = .001) were independent predictors of euthanasia or death within 7 days. For cats that survived ≥7 days, median survival time was 94 (95% CI, 42–164) days, with 6 cats alive 1 year after presentation.

Conclusions

Although 153/250 cats were euthanized at presentation, 6 cats survived >12 months. No factors were identified that predicted euthanasia on presentation.  相似文献   

Effects of temperature and lipid droplet adherence on mortality of hatchery-reared southern hake Merluccius australis larvae     

Claudia A. Bustos  Mauricio F. Landaeta  Enrique Bay-Schmith  Rodrigo Lewis  Ximena Moraga 《Aquaculture (Amsterdam, Netherlands)》2007,270(1-4):535-540

Effects of exogenous (water temperature) and endogenous (lipid droplet adherence) factors were experimentally tested on early survival of southern hake Merluccius australis reared under controlled conditions. Experiments to determine the effect of temperature (10, 12 and 14 °C) on larval growth rates and yolk-sac absorption rates of unfed southern hake were carried out under laboratory conditions. There was no significant differences in growth rates at the temperature range tested (ANCOVA, F = 0.164, p > 0.25), but yolk-sac absorption rates and mortality increased with temperature (ANCOVA, F = 53.84, p < 0.001). A high percentage (between 31 and 81%) of hake eggs showed a lipid droplet not adhered (i.e., freely moving in the yolk, and not located in the posteriormost portion of the yolk-sac). In a second experiment, fed southern hake larvae with the lipid droplet not adhered during embryonic development did not survive after yolk-sac absorption. This study provides the first data on the influence of the lipid droplet absorption on larval survival of cultured hake, and can be used as an early indication of the quality of the batch.  相似文献