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Evaluation of thermal antinociceptive effects after intramuscular administration of buprenorphine hydrochloride to American kestrels (Falco sparverius)
2014
Ceulemans, Susanne M. | Sanchez-Migallon Guzman, David | Olsen, Glenn H. | Beaufrere, Hugues | Paul-Murphy, Joanne R.
Objective—To evaluate the thermal antinociceptive effects and duration of action of buprenorphine hydrochloride after IM administration to American kestrels (Falco sparverius). Animals—12 healthy 3-year-old American kestrels. Procedures—Buprenorphine hydrochloride (0.1, 0.3, and 0.6 mg/kg) and a control treatment (saline [0.9% NaCl] solution) were administered IM in a randomized crossover experimental design. Foot withdrawal response to a thermal stimulus was determined 1 hour before (baseline) and 1.5, 3, and 6 hours after treatment administration. Agitation-sedation scores were determined 3 to 5 minutes before each thermal stimulus. Adverse effects were monitored for 6 hours after treatment administration. Results—Buprenorphine hydrochloride at 0.1, 0.3, and 0.6 mg/kg, IM, increased thermal threshold for 6 hours, compared with the response for the control treatment. There were no significant differences among buprenorphine treatments. A mild sedative effect was detected at a dose of 0.6 mg of buprenorphine/kg. Conclusion and Clinical Relevance—At the doses tested, buprenorphine hydrochloride resulted in thermal antinociception in American kestrels for at least 6 hours, which suggested that buprenorphine has analgesic effects in this species. Further studies with longer evaluation periods and additional forms of noxious stimuli, formulations, dosages, and routes of administration are needed to fully evaluate the analgesic effects of buprenorphine in American kestrels.
Mostrar más [+] Menos [-]Cutaneous peripheral nerve sheath tumors in 15 dogs
2014
Ko, S.B., Jeju National University, jeju, Repubic of Korea | Song, K.O., Jeju Self-Governing Provincial Veterinary Research Institute, jeju, Republic of Korea | Kang, S.C., Optipharm, Cheongwon, Republic of Korea | Kim, J.H., Jeju National University, jeju, Repubic of Korea
Peripheral nerve sheath tumors (PNSTs) are heterogeneous tumor groups of peripheral nerves that originate from either Schwann cells or modified Schwann cells, fibroblasts, or perineural cells. In this study, signalment and clinical data such as tumor location and size were evaluated for 15 cases of PNSTs collected from local animal hospitals. The mean age of dogs with malignant PNST was higher than that of dogs with benign PNST. Additionally, the male to female ratio in dogs with PNST was 1 : 4. In dogs with PNST, the primary sites of involvement were the hindlimb, forelimb, around the mammary glands, the neck, and the abdomen. Histiopathologic examination revealed that eight PNSTs were benign and seven were malignant. The tumor cells were composed of loosely to densely arranged interlacing bundles and wavy spindle cells arranged in short bundles, palisading, and whirling. High mitotic figures, local invasion, multifocal necrosis and atypical multinucleated giant cells were observed in malignant PNST cases. All PNSTs showed immunoreactivity for vimentin and S-100. However, only 93.3% and 73.3% were immunoreactive for NSE and GFAP, respectively. Overall, these results indicated that immunohistochemical markers such as vimentin, S-100 and NSE could help confirm the diagnosis of canine PNSTs.
Mostrar más [+] Menos [-]Anti-diabetic effects of benfotiamine on an animal model of type 2 diabetes mellitus
2014
Chung, K.M., Department of Toxicology and Biochemistry, College of Veterinary Medicine, Jeju National University, Jeju, Republic of Korea | Kang, W.Y., Department of Toxicology and Biochemistry, College of Veterinary Medicine, Jeju National University, Jeju, Republic of Korea | Kim, D.G., Department of Toxicology and Biochemistry, College of Veterinary Medicine, Jeju National University, Jeju, Republic of Korea | Hong, H.J., Department of Toxicology and Biochemistry, College of Veterinary Medicine, Jeju National University, Jeju, Republic of Korea | Lee, Y.J., Department of Toxicology and Biochemistry, College of Veterinary Medicine, Jeju National University, Jeju, Republic of Korea | Han, C.H., Department of Toxicology and Biochemistry, College of Veterinary Medicine, Jeju National University, Jeju, Republic of Korea
Although benfotiamine has various beneficial anti-diabetic effects, the detailed mechanisms underlying the impact of this compound on the insulin signaling pathway are still unclear. In the present study, we evaluated the effects of benfotiamine on the hepatic insulin signaling pathway in Otsuka Long-Evans Tokushima Fatty (OLETF) rats, which are a type 2 diabetes mellitus model. OLETF rats treated with benfotiamine showed decreased body weight gain and reduced adipose tissue weight. In addition, blood glucose levels were lower in OLETF rats treated with benfotiamine. Following treatment with benfotiamine, the levels of Akt phosphorylation (S473/T308) in the OLETF groups increased significantly compared to the OLETF control group so that they were almost identical to the levels observed in the control group. Moreover, benfotiamine restored the phosphorylation levels of both glycogen synthase kinase (GSK)-3¥�/¥�(S21, S9) and glycogen synthase (GS; S641) in OLETF rats to nearly the same levels observed in the control group. Overall, these results suggest that benfotiamine can potentially attenuate type 2 diabetes mellitus in OLETF rats by restoring insulin sensitivity through upregulation of Akt phosphorylation and activation of two downstream signaling molecules, GSK-3¥�/¥� and GS, thereby reducing blood glucose levels through glycogen synthesis.
Mostrar más [+] Menos [-]Prevalence of virulence and cytolethal distending toxin (CDT) genes in thermophilic Campylobacter spp. from dogs and humans in Gyeongnam and Busan, Korea
2014
Cho, H.H., Animal, Plant and Fisheries Quarantine and Inspection Agency, Anyang, Republic of Korea | Kim, S.H., Viral infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea | Min, W.G., Gyeongsang National University, Jinju, Republic of Korea | Ku, B.K., Animal, Plant and Fisheries Quarantine and Inspection Agency, Anyang, Republic of Korea | Kim, Y.H., Gyeongsang National University, Jinju, Republic of Korea
The prevalence of thermophilic Campylobacter (C.) spp. in stray, breeding, and household dogs was 25.2, 12.0, and 8.8%, respectively. C. jejuni and C. upsaliensis were the predominant Campylobacter spp. from household dogs. cdtA, cdtB, and cdtC were detected by PCR in all isolates. Despite the high cytolethal distending toxin (CDT) gene prevalence, only 26 (31%) C. jejuni strains and one (15.3%) C. coli strain showed evidence of CDT production in HEp-2 cell cytotoxicity assays. Virulence-associated genes detected in the C. jejuni and C. coli isolates were cadF, dnaJ, flaA, racR, ciaB, iamA, pldA, virB11, ceuE, and docC. cadF, dnaJ, flaA, and ceuE were found in all C. jejuni and C. coli isolates. When detecting Guillain-Barre syndrome-associated genes (galE, cgtB, and wlaN), galE was identified in all isolates. However, cgtB and wlaN were more prevalent in C. jejuni isolates from humans than those from dogs. Adherence and invasion abilities of the C. jejuni and C. coli strains were tested in INT-407 cells. A considerable correlation (adjusted R©�= 0.678) existed between adherence and invasion activities of the Campylobacter spp. isolates.
Mostrar más [+] Menos [-]Serum cardiac troponin I concentrations in clinically normal and Dirofilaria immitis infected Korean Jindo dogs
2014
Hwang, S.H., Chungnam National University, Daejeon, Republic of Korea | Park, H.J., Chungnam National University, Daejeon, Republic of Korea | Seo, K.W., Chungnam National University, Daejeon, Republic of Korea | Lee, S.E., Korea Centers for Disease Control and Prevention, Cheongwon, Republic of Korea | Song, K.H., Chungnam National University, Daejeon, Republic of Korea
This study was conducted to determine the serum cardiac troponin I (cTnI) concentrations in clinically normal (uninfected) Korean Jindo dogs and those infected with Dirofilaria (D.) immitis. Forty Korean Jindo dogs (22 females, 18 males) were obtained from two kennels in the Boryeong area of Chungnam Province and the Daejeon area, Korea. Significantly higher cTnI concentrations were observed in D. immitis-infected dogs than clinically normal dogs. cTnI testing in addition to thoracic radiography, echocardiography, and electrocardiography shows promise as an additional method for diagnosis of heartworm infection.
Mostrar más [+] Menos [-]Focal form of acquired myasthenia gravis with megaesophagus in a Yorkshire terrier dog
2014
Hahn, T.Y., Konkuk University, Seoul, Republic of Korea | Kang, M.H., Konkuk University, Seoul, Republic of Korea | Eom, K.D., Konkuk University, Seoul, Republic of Korea | Park, H.M., Konkuk University, Seoul, Republic of Korea
A 12-year-old, castrated male Yorkshire terrier dog presented with frequent regurgitations that had begun 45 days earlier and become more progressive. Radiographs revealed an air-trap region behind the cranial esophageal sphincter muscle in the esophagus and esophagographies with barium contrast showed mild esophageal dilation with decreased motility. Esophageal motility increased within 5 min of neostigmine methylsulfate administration and acetylcholine receptor antibodies titer increased to beyond the normal range. Based on these findings, acquired myasthenia gravis with focal form was diagnosed, making this the first such case diagnosed by an acetylcholine receptor antibody test in Korea.
Mostrar más [+] Menos [-]Evaluation of the immunogenicity of Bordetella bronchiseptica, a vaccine antigen
2014
Woo, S.H., Jeju National University, Jeju, Republic of Korea | Moon, S.Y., Jeju National University, Jeju, Republic of Korea | Byon, Y.Y., Jeju National University, Jeju, Republic of Korea | Joo, H.G., Jeju National University, Jeju, Republic of Korea
Bordetella (B.) bronchiseptica is a causative agent of swine atrophic rhinitis that promotes colonization of the mucous membrane of the swine nasal cavity by Pasteurella (P.) multocida. Mixed infection with B. bronchiseptica and P. multocida leads to growth inhibition of pigs, resulting in significant economic loss. There are many commercial vaccines for atrophic rhinitis, including B. bronchiseptica as a killed vaccine antigen (Ag). However, the immunogenicity of killed B. bronchiseptica Ag has not yet been elucidated; therefore, this study was conducted to investigate the immunogenicity of killed B. bronchiseptica Ag and the type of immune response it induces. In vitro assays using mouse spleen cells and flow cytometry revealed that B. bronchiseptica Ag induced high proliferation capability of lymphocytes, especially B lymphocytes, and the proliferating cells showed a significant response to interleukin (IL)-2. B. bronchiseptica Ag also enhanced the production of IL-12, a representative cytokine for cell-mediated immunity. In vivo experiments using mice showed that the injection of B. bronchiseptica Ag markedly induced Ag-specific antibody. Taken together, these results indicate that B. bronchiseptica Ag has high immunogenicity by itself.
Mostrar más [+] Menos [-]A survey of the use of veterinary anesthetics in Korea
2014
Lee, J.W., Konkuk University, Seoul, Republic of Korea | Lee, J.I., Konkuk University, Seoul, Republic of Korea | Cho, Y.J., Seojeong College University, Yangju, Republic of Korea | Lee, Y.A., Shingu College University, Seongnam, Republic of Korea | Kim, J.I., Konkuk University, Seoul, Republic of Korea | Hwang, B.R., Konkuk University, Seoul, Republic of Korea | Kim, H.J., Konkuk University, Seoul, Republic of Korea | Jhun, H.J., Konkuk University, Seoul, Republic of Korea | Han, J.S., Konkuk University, Seoul, Republic of Korea
This study was conducted to investigate actual conditions associated with veterinary anesthetic drug use in Korea, and to obtain responses from Korean veterinarians and researchers pertaining to the use of anesthetic drugs. To accomplish this, a nationwide survey was issued to veterinarians working at animal hospitals and to researchers in the Korean Association for Laboratory Animal Science (KALAS). A self-administered questionnaire-based survey was then conducted in which respondents were asked questions about actual conditions associated with the use of animal anesthetic drugs. The survey revealed that the distribution and management of animal medicines in Korea was quite vulnerable to misuse or abuse due to a variety of factors. Therefore, a relevant regulatory system should be strictly enforced to protect vulnerable individuals from abuse or misuse.
Mostrar más [+] Menos [-]Loop-mediated isothermal amplification assay for the detection of Salmonella spp. in pig feces
2014
Kim, Y.K., Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Kim, H.Y., Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Jeon, A.B., Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Lee, M.H., Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Bae, Y.C., Animal and Plant Quarantine Agency, Anyang, Republic of Korea | Byun, J.W., Animal and Plant Quarantine Agency, Anyang, Republic of Korea
Salmonella are causative agents of gastroenteritis and systemic disease in animals. The invA gene was selected as a target sequence of loop-mediated isothermal amplification (LAMP) assay for diagnosis of Salmonella infection. The detection limits for broth dilution, spiked feces and enrichment were 10. 10. and 10. CFUs/mL, respectively. The LAMP assay developed in the present study may be a reliable method for detection of Salmonella spp. in pig feces.
Mostrar más [+] Menos [-]The treatment of lower extremity defects with severe proliferative tissue using an adjustable horizontal mattress suture in a Tosa dog
2014
Heo, S.Y., Chonbuk University, Jeonju, Republic of Korea | Kim, N.S., Chonbuk University, Jeonju, Republic of Korea
A 2-year-old male Tosa was admitted for treatment of a non-healing wound on the right forelimb. Skin tests were unremarkable; however, the lesion contained severe proliferative tissue. Surgical treatment was conducted due to the extensive skin defect and granulation tissue present. Following removal of the proliferative tissue, the wound was closed using the adjustable horizontal mattress suture method with multiple punctate relaxing incisions. The proliferative tissue healed completely after the surgical treatment. This technique can be considered an alternative treatment for the proliferative tissue when conditions require a skin graft or flap after surgical treatment.
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