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Renal, gastrointestinal, and hemostatic effects of oral administration of meloxicam to Hispaniolan Amazon parrots (Amazona ventralis) Texto completo
2015
Dijkstra, Bas | Sanchez-Migallon Guzman, David | Gustavsen, Kate | Owens, Sean D. | Hass, Carlyle | Kass, Philip H. | Paul-Murphy, Joanne R.
OBJECTIVE To investigate renal, gastrointestinal, and hemostatic effects associated with oral administration of multiple doses of meloxicam to healthy Hispaniolan Amazon parrots (Amazona ventralis). ANIMALS 12 Hispaniolan Amazon parrots. PROCEDURES Birds were assigned to receive meloxicam oral suspension (1.6 mg/kg, PO, q 12 h) and 2.5 mL of tap water inserted into the crop by use of a gavage tube (n = 8) or the equivalent volume of tap water only (control group; 4) for 15 days. Urine and feces were collected 2 hours after treatment administration each day. Feces were evaluated for occult blood. Results of a CBC and serum biochemical analysis and measured N-acetyl-β-d-glucosaminidase (NAG) activity and whole blood clotting time were evaluated before, during, and after completion of treatments. Results of urinalysis and measured urine NAG activity were also evaluated. RESULTS Birds treated with meloxicam had a significant increase in number of WBCs and decrease in PCV from before to after treatment. The PCV also decreased significantly, compared with results for the control group; however, WBC count and PCV for all birds remained within reference ranges throughout the study. One parrot treated with meloxicam had a single high value for urine NAG activity. CONCLUSIONS AND CLINICAL RELEVANCE Meloxicam administered orally at the dosage used in this study caused no apparent negative changes in several renal, gastrointestinal, or hemostatic variables in healthy Hispaniolan Amazon parrots. Additional studies to evaluate adverse effects of NSAIDs in birds will be needed.
Mostrar más [+] Menos [-]Estimation of glomerular filtration rate in dogs by a single-blood sample method involving iodixanol Texto completo
2015
Sasaki, Yui | Iwama, Ryosuke | Shimamura, Shunsuke | Katayama, Masaaki | Uzuka, Yuji | Yabe, Koichi | Takasuna, Kiyoshi | Satoh, Hirohsi | Furuhama, Kazuhisa
OBJECTIVE To establish a simplified single-blood-sample method (SBSM) involving iodixanol to estimate glomerular filtration rate (GFR) in dogs and compare data provided by that procedure with data provided by a conventional multiple-blood-sample method (MBSM) involving inulin. ANIMALS 26 healthy dogs and 36 dogs with naturally occurring renal disease. PROCEDURES Dogs were used in various preliminary experiments to establish protocols for the SBSM and the MBSM of GFR estimation. To evaluate the relationship between GFRs obtained by the SBSM and the MBSM each involving iodixanol, iodixanol (40 mg of I/kg) was administered IV to 26 healthy dogs and 36 dogs with renal disease; blood sample collection was performed before and at 60, 90, and 120 minutes after the injection. To evaluate the relationship between GFRs obtained by the SBSM involving iodixanol and the MBSM involving inulin, iodixanol (40 mg of I/kg) and inulin (50 mg/kg) were coadministered IV to 22 healthy dogs and 3 dogs with renal disease, followed by blood sample collection 30, 60, 90, and 120 minutes later. Serum iodixanol and inulin concentrations were separately determined by reverse-phase high-performance liquid chromatography. RESULTS Findings revealed a correlation (r = 0.99) between GFR estimated by the SBSM and MBSM each involving iodixanol. Likewise, GFR estimated by the SBSM involving iodixanol was correlated (r = 0.89) with that estimated by the MBSM involving inulin. CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that the SBSM involving iodixanol can be applied to estimate GFR in dogs, instead of use of an MBSM.
Mostrar más [+] Menos [-]Effects of isoflurane on somatosensory-evoked potentials in calves: A pilot study Texto completo
2015
Truchetti, Geoffrey | Burns, Patrick | Nichols, Sylvain | Parent, Joane
Somatosensory evoked potentials (SSEP) are used to monitor sensory function and are often recorded under general anesthesia. The objective of the study was to evaluate the effects of isoflurane on SSEPs in calves as it has not been reported. Eight calves (mean age: 40 days), were included in the study. Calves were anesthetized with a randomized sequence of four different isoflurane partial pressures. Blood gas analysis was performed before each measurement. SSEP were induced by repeated stimulation of the common dorsal digital nerve III. SSEPs were recorded from the lumbo-sacral junction (s-SSEP) and the head (c-SSEP). Latency and inter-amplitude of each peak were measured. For s-SSEP: One negative (Nsp1) and two positive (Psp1 and Psp2) peaks were identified in all tracings except for two calves. There was a significant effect of isoflurane on the latency of Psp2 (P = 0.01). Inter-amplitude decreased significantly with PaO2, PaCO2 and temperature (P < 0.05). Psp2 latency decreased with PaO2 (P = 0.01). For c-SSEP: two positive (Pc1 and Pc2) and two negative (Nc1 and Nc2) peaks were identified. There were identifiable peaks for the analysis of Pc1 latencies only. There was a significant positive linear relation between end-tidal isoflurane partial pressure (ETiso) and Pc1 latency (P = 0.04). None of the co-variables had a significant effect on the latency of Pc1 (P > 0.1). Isoflurane has a major impact on the recording of c-SSEP. Recording should be done at the lowest ETiso as possible, and anesthesia parameters should be kept constant.
Mostrar más [+] Menos [-]Isolation and identification of canine parvovirus type 2b in Korean dogs
2015
Yang, D.K., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Kang, K.S., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Jo, H.Y., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Kim, H.H., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Choi, S.S., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Song, J.Y., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea
Canine parvovirus (CPV) is a major diarrhea-causing agent in puppies. Since CPV type 2 (CPV-2) emerged in 1978, new antigenic variants including CPV-2a, CPV-2b, and CPV-2c have been identified in many countries. Two puppies died suddenly at a veterinary clinic in Gyeonggi province, South Korea. Two viruses were isolated in A72 cells, confirmed as CPV strains based on a CPV rapid kit and an indirect fluorescence test and designated QIACP1403 and QIACP1404. The nucleotide sequences of complete VP2 genes of QIACP1403 and QIACP1404 were determined, and the corresponding amino acid sequences were deduced. Molecular analyses revealed that the QIACP1403 and QIACP1404 isolates were type CPV-2b. Several mutated amino acids were detected on VP2 gene residues of the two isolates. Phylogenetic analyses showed that the two isolates were most closely related to strain CPV-BM11, which was isolated from Chinese dogs in 2011. Our results suggest that these isolates may be a candidate for a vaccine to prevent CPV infection in dogs after conducting passages of the isolates in an in vitro culture system.
Mostrar más [+] Menos [-]Retrospective study of the medical status of 34 Formosan sika deer (Cervus nippon taiouanu) at the Taipei Zoo from 2003 to 2014
2015
Kang, C.L., School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan | Yu, J.F., Taipei Zoo, Taipei, Taiwan | Lai, H., Taipei Zoo, Taipei, Taiwan | Guo, J.C. | Wang, L.C., School of Veterinary Medicine, National Taiwan University, Taipei, Taiwan
The Formosan sika deer (Cervus nippon taiouanus) is an endemic subspecies in Taiwan. The original wild deer has been extinct since the late 1960s. The largest captive population is located at the Taipei Zoo. Except for infectious disease outbreaks, no systemic medical research has been reported for this subspecies. This study was conducted to analyze the medical status of the captive Formosan sika deer population, including the hematological and serum chemistry characteristics. To accomplish this, medical records for 34 Formosan sika deer from January 2003 to January 2014 were acquired and analyzed. The most common illness and cause of death was trauma, followed by gastrointestinal and respiratory disease, respectively. The hematologic and serum chemical values of healthy adults were quite different from those of sika deer (Cervus nippon yesoensis). This study provides a closer medical understanding of this subspecies and the results will facilitate its management.
Mostrar más [+] Menos [-]Expression analysis of ciliary rootlet coiled coil protein mRNA during Xenopus development
2015
Rahman, Md. M., College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju, Republic of Korea | Kim, I.S., College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju, Republic of Korea | Ahn, D.C., College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju, Republic of Korea | Cho, H.S., College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju, Republic of Korea | Kim, W.I., College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju, Republic of Korea | Kim, B., College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju, Republic of Korea | Shin, G.W., College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju, Republic of Korea | Kwon, J.K., College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju, Republic of Korea | Akanda, Md. R., College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju, Republic of Korea | Park, B.Y., College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National University, Jeonju, Republic of Korea
Ciliary rootlet coiled coil protein (CROCC), the structural component that originates from the basal body at the proximal end of the ciliary rootlet, plays a crucial role in maintaining the cellular integrity of ciliated cells. In the current study, we cloned Xenopus CROCC and performed the expression analysis. The amino acid sequence of Xenopus laevis was related to those of Drosophila, cow, goat, horse, chicken, mouse and human. Reverse transcription polymerase chain reaction analysis revealed that CROCC mRNA encoding a coiled coil protein was present maternally, as well as throughout early development. In situ hybridization indicated that CROCC mRNA occurred in the animal pole of embryo during gastrulation and subsequently in the presumptive neuroectoderm at the end of gastrulation. At tailbud stages, CROCC mRNA expression was localized in the anterior roof plate of the developing brain, pharyngeal epithelium connected to gills, esophagus, olfactory placode, intestine and nephrostomes of the pronephric kidney. Our study suggests that CROCC may be responsible for control of the development of various ciliated organs.
Mostrar más [+] Menos [-]Serosurveillance and establishment of a reverse transcription-polymerase chain reaction assay for bovine parainfluenza virus type 5
2015
Yang, D.K., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Choi, S.S., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Lee, B.J., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Kim, H.H., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Jo, H.Y., Viral disease division, Animal and Plant Quarantine Agency, Anyang, Republic of Korea
Bovine parainfluenza virus type 5 (bPIV5) was isolated from cattle with downer cow syndrome in 2012, and included both respiratory and neurotropic pathogens from a variety of animals. In the current study, we conducted serosurveillance using sera obtained from seven Korean farms and optimized a reverse transcription-polymerase chain reaction (RT-PCR) assay to detect bPIV5. The overall seropositive rate for Korean cattle was 21.4% (163/760). A farm located near the city of Milyang in Gyeoungnam province had a markedly elevated seropositive rate for bPIV5 compared to that of the other six farms. The regional seropositive rates were 4.2% (8/192) for Haman, 19.5% (18/ 55) for Hwasung, 73.9% (65/88) for Milyang, 26.0% (50/192) for Namwon, 1.0% (1/96) for Uljin, 13.5% (13/96) for Yeongju, and 32.7% (8/41) for Yongin. The sensitivity and specificity of three RT-PCR primer sets used to amplify the conserved fusion gene of bPIV5 were also evaluated. An RT-PCR assay using the bPIVFR3 primer set was 10- fold more sensitive than the assays using the two other primer sets and did not result in non-specific amplification. These results demonstrated that the bPIFR3 primer set can be used to detect bPIV5.
Mostrar más [+] Menos [-]Virulence factors, antimicrobial resistance patterns, and genetic characteristics of hydrogen sulfide-producing Escherichia coli isolated from swine
2015
Park, H.E., Department of Infectious Disease, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea | Shin, M.K., Department of Infectious Disease, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea | Park, H.T., Department of Infectious Disease, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea | Shin, S.W., Department of Infectious Disease, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea | Jung, M., Department of Infectious Disease, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea | Im, Y.B., Department of Infectious Disease, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea | Yoo, H.S., Department of Infectious Disease, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
Escherichia (E.) coli is commensal bacteria found in the intestine; however, some pathogenic strains cause diseases in animals and humans. Although E. coli does not typically produce hydrogen sulfide (H2S), H2S-producing strains of E. coli have been identified worldwide. The relationship between virulence and H2S production has not yet been determined. Therefore, characteristics of H2S-producing isolates obtained from swine feces were evaluated including antibiotic resistance patterns, virulence gene expression, and genetic relatedness. Rates of antibiotic resistance of the H2Sproducing E. coli varied according to antibiotic. Only the EAST1 gene was detected as a virulence gene in five H2S-producing E. coli strains. Genes conferring H2S production were not transmissible although the sseA gene encoding 3-mercaptopyruvate sulfurtransferase was detected in all H2S-producing E. coli strains. Sequences of the sseA gene motif CGSVTA around Cys238 were also identical in all H2S- producing E. coli strains. Diverse genetic relatedness among the isolates was observed by pulsed-field gel electrophoresis analysis. These results suggested that H2S-producing E. coli strains were not derived from a specific clone and H2S production in E. coli is not associated with virulence genes.
Mostrar más [+] Menos [-]Anti-inflammatory effects of 4 ,4 -diaminodiphenyl sulfone (dapsone) in lipopolysaccharidetreated spleen cells: selective inhibition of inflammation-related cytokines
2015
Moon, S.Y., Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Jeju National University, Jeju, Republic of Korea | Joo, H.G., Laboratory of Veterinary Pharmacology, College of Veterinary Medicine, Jeju National University, Jeju, Republic of Korea
4 , 4 - diaminodiphenyl sulfone (dapsone) is a sulfone drug that has antibacterial effects on a variety of bacteria, especially Mycobacterium leprae ; thus, it has been used to treat leprosy. Previous studies demonstrated that dapsone inhibits integrin-mediated adherence of neutrophils and production of prostaglandin E2 by polymorphonuclear leukocytes. Hence, dapsone may act in immune cells and regulate cell-mediated inflammation processes. However, its antiinflammatory effects remain unclear. The present study demonstrated that dapsone modulates the production of inflammation-related cytokines in immune cells. We employed the spleen cells of mice, which are major immune cells, and lipopolysaccharide (LPS) as a causative agent of inflammation for experiments. Dapsone induced a proportional change in splenocyte subsets and the apoptosis of spleen cells. Interestingly, dapsone decreased the production of tumor necrosis factor-alpha and interleukin (IL)-10, but not IL-6, in LPS-treated spleen cells. In other assays, we measured the dapsone-induced production of nitric oxide (NO) and the expression of activation markers of spleen cells. Dapsone decreased NO production in LPS-treated spleen cells. Taken together, our results demonstrate that dapsone has antiinflammatory effects in immune cells and provide new insight into the potential uses of this agent.
Mostrar más [+] Menos [-]Anti-thrombotic activity of fermented rice bran extract with several oriental plants in vitro and in vivo
2015
Jeon, B.R., Laboratory of Veterinary Physiology and Cell Signaling, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea | Ji, H.D., Laboratory of Veterinary Physiology and Cell Signaling, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea | Kim, S.J., Department of Clinical Pathology, Daegu Health College, Daegu, Republic of Korea | Lee, C.H., Enzyme LAPA Co., Cheonan, Republic of Korea | Kim, T.W., Laboratory of Veterinary Physiology and Cell Signaling, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea | Rhee, M.H., Laboratory of Veterinary Physiology and Cell Signaling, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
Although the effects of the rice bran have recently been investigated, there is no information regarding platelet physiology available. However, it is well known that fermented natural plants have a beneficial effect on cardiovascular diseases. Therefore, this study was conducted to investigate whether fermented rice bran extract (FRBE) with several plants (Artemisia princeps, Angelica Gigantis Radix, Cnidium officinale, and Camellia sinensis) affected agonist - induced platelet aggregation, and if so, what the underlying mechanism of its activity was. We performed several experiments, including in vitro platelet aggregation, intracellular calcium concentration and adenosine triphosphate release. In addition, the activation of integrin alpha IIb beta3 was determined using fibrinogen binding. Thrombus formation was also evaluated in vivo using an arterio-venous shunt model. The FRBE inhibited collagen-induced platelet aggregation in a concentrationdependent manner. FRBE significantly and dose dependently attenuated thrombus formation using rat arterio-venous shunt. FRBE suppressed the intracellular calcium mobilization in collagen-stimulated platelets. We also found that FRBE inhibited extracellular stimuli-responsive kinase 1/2, p38-mitogen - activated protein kinases and c-Jun N-terminal kinase phosphorylation. These results suggested that FRBE inhibited collagen-induced platelet aggregation, which was mediated by modulation of downstream signaling molecules. In conclusion, FRBE could be developed as a functional food against aberrant platelet activation-related cardiovascular diseases.
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