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Trichophyton mentagrophytes infection in an African lion cub (Panthera leo) and transmission to a zookeeper
2015
Kim, K.T., Animal Health Center, Zoo Land, Daejeon O-World Theme Park, Daejeon, Republic of Korea | Lee, S.H., College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea | Kwak, D., College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
Dermatophytosis was found on the right front leg of a 4-month-old female African lion cub (Panthera leo) kept at a zoo with locally marginal alopecia. For diagnosis, culturing on sabouraud dextrose agar was performed and skin scrapings from the lesion were analyzed. The ones from the culture and skin scrapings were identified as Trichophyton mentagrophytes. A zookeeper that had been in contacted with the lion for artificial rearing developed skin lesions with well-defined erythematous plaques on the right arm about 1 month after the lesion in the lion was observed. The ringworm was probably transmitted from the lion through continuous contact.
Показать больше [+] Меньше [-]Cervical lung lobe herniation in a Pekingese dog
2015
Choi, R., Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea | Suh, S.I., Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea | Hyun, C., Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea
An 8-year-old intact male Pekingese (weighing 13 kg) was presented for evaluation of chronic coughing. Thoracic radiography found a redundant tissue swelling (protruded on expiration and collapsed on inspiration) on the ventral neck just cranial to the thoracic inlet. Fluoroscopy also identified that the cranial portion of the right/left cranial lung lobe was seen to protrude through the thoracic inlet into the ventral neck on expiration. On the echocardiogram, there were no abnormal jets in all cardiac valves and no dilation in all cardiac chambers. Based on diagnostic imaging studies, the case was diagnosed as cervical lung lobe herniation.
Показать больше [+] Меньше [-]Evaluation of conservation of endangered species through somatic cell nuclear technology
2015
Hyun, S.H., Sooam Biotech Research Foundation, Seoul, Republic of Korea | Jeong, Y.W., Sooam Biotech Research Foundation, Seoul, Republic of Korea | Hwang, K.C., Sooam Biotech Research Foundation, Seoul, Republic of Korea | Lee, G.J., Technology Strategy Planning Office, Seoul, Republic of Korea | Yang, I.S., Sooam Biotech Research Foundation, Seoul, Republic of Korea
The number of wild animal species is gradually decreasing due to poaching, hunting and habitat loss. While several endangered animal species have been successfully preserved at the zoo, assisted reproductive technology (ART) must be applied to restore wild animals. In the case of critically endangered animals, somatic cell cloning is considered the most appropriate method of ART. Somatic cell cloning can be beneficial for the reproduction of endangered species with limited female populations. However, gene and cell banks, and understanding of reproductive physiology and optimization of ART for wild animals are urgently required for further activation of artificial reproduction of endangered species, which enlarges its application and maintains biodiversity. Care should also be taken to consider ethical and legal issues associated with somatic cell cloning for conservation of endangered animals.
Показать больше [+] Меньше [-]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.
Показать больше [+] Меньше [-]Characterization of proteases isolated from Kudoa septempunctata
2015
Shin, S.P., Fisheries Laboratory, Kinki University, Wakayama, Japan | Zenke, K., Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan | Yokoyama, H., Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, University of Tokyo, Tokyo, Japan
Proteases play important roles in parasite development and host parasite interactions. The protease of Kudoa spp. has been recognized as a key factor of severe proteolysis of fish muscle post-mortem; however, there is little information available regarding the protease of Kudoa (K.) septempunctata, which was recently identified as a cause of food poisoning in humans. The present study was conducted to isolate and characterize proteases to elucidate the type of protease contained in the parasite and determine the optimal pH for protease activity. We confirmed the cysteine protease and metalloprotease produced by K. septempunctata. While the cysteine protease showed optimal activity at pH 5 that decreased rapidly with increasing pH, the optimal activity of metalloprotease was pH 7, and it remained stable from pH 6 to pH 8. These results indicate that the pH of cysteine protease is not proper for fish muscle postmortem, and that metalloprotease can act in human intestines. Overall, the present study provides important information that improves our understanding of the role of protease physiology and the subsequent food poisoning caused by K. septempunctata.
Показать больше [+] Меньше [-]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.
Показать больше [+] Меньше [-]Hypertrophic cardiomyopathy secondary to severe right and left ventricular outflow tract obstruction in a Maltese dog
2015
Yoon, W.K., Guardian Angel Animal Hospital, Anyang, Republic of Korea | Suh, S.I., Section of Small Animal Internal Medicine, Kangwon National University, Chuncheon, Republic of Korea | Oh, Y.S., Department of Veterinary Pathology, College of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea | Hyun, C., Section of Small Animal Internal Medicine, Kangwon National University, Chuncheon, Republic of Korea
An 8-year-old spayed female Maltese (2.5 kg of body weight) presented with the primary complaint of loud heart murmur and exercise intolerance. Diagnostic imaging revealed severe pulmonic stenosis (peak velocity 5.2 m/ s) with right ventricular hypertrophy. The dog revisited after 2 years, at which time, diagnostic imaging revealed severe biventricular hypertrophy, dynamic left ventricular outflow tract obstruction, left atrial dilation and pulmonary hypertension with worsened pre-existing pulmonic stenosis. Postmortem investigation revealed hypertrophic cardiomyopathy and regional myocardial infarction. The case was diagnosed as hypertrophic cardiomyopathy secondary to severe right and left ventricular outflow tract obstruction.
Показать больше [+] Меньше [-]Effects of alfaxalone on echocardiographic examination in healthy dogs
2015
Kim, Y.W., Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea | Kim, T.J., Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea | Hyun, C., Section of Small Animal Internal Medicine, College of Veterinary Medicine, Kangwon National University, Chuncheon, Republic of Korea
This study evaluated the effects of alfaxalone (3 mg/kg, intravenously) on echocardiographic examination in healthy dogs using echocardiography. Six adult Beagle dogs were used for this study. Left ventricular dimensions with systolic indexes, trans - blood flow at all cardiac valvular annulus and trans - mitral tissue Doppler values were measured from routine transthoracic echocardiography. Although the changes were not statistically significant, heart rate, left ventricular end - systolic diameter, left ventricular end - diastolic diameter, peak velocities of tricuspid A - wave and transpulmonic flow were increased after alfaxalone induction, while systolic blood pressure, fractional shortening, left ventricular ejection fraction, peak velocities of mitral E - wave, mitral A wave, tricuspid E - wave, transaortic flow and medial e - , a - and s - peaks decreased after alfaxalone induction. No dogs showed hypoxemia during sedation, regardless of intubation and oxygen supply. Although alfaxalone showed mild cardiovascular depression, this protocol could be a good alternative sedative protocol for echocardiographic examination in healthy dogs because the cardiovascular depression was statistically and clinically insignificant. However, further studies in dogs with heart diseases should be conducted to confirm these findings after alfaxalone induction.
Показать больше [+] Меньше [-]Establishment of a live vaccine strain against fowl typhoid and paratyphoid
2015
Cho, S.H., BioPOA Co., Yongin, Republic of Korea | Ahn, Y.J., BioPOA Co., Yongin, Republic of Korea | Kim, T.E., BioPOA Co., Yongin, Republic of Korea | Kim, S.J., BioPOA Co., Yongin, Republic of Korea | Huh, W., Daesung Microbiological Lab. Co., Euiwang, Republic of Korea | Moon, Y.S., Daesung Microbiological Lab. Co., Euiwang, Republic of Korea | Lee, B.H., Daesung Microbiological Lab. Co., Euiwang, Republic of Korea | Kim, J.H., Laboratories of Avian Diseases, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea | Kwon, H.J., Laboratories of Poultry Production Medicine, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
To develop a live vaccine strain against fowl typhoid and paratyphoid caused by Salmonella serovar Gallinarum biovar Gallinarum (Salmonella Gallinarum) and Salmonella serovar Enteritidis (Salmonella Enteritidis), respectively, several nalidixic acid resistant mutants were selected from lipopolysaccharide (LPS) rough strains of Salmonella Gallinarum that escaped from fatal infection of a LPS - binding lytic bacteriophage. A non - virulent and immunogenic vaccine strain of Salmonella Gallinarum, SR2 - N6, was established through in vivo pathogenicity and protection efficacy tests. SR2 - N6 was highly protective against Salmonella Gallinarum and Salmonella Enteritidis and safer than Salmonella Gallinarum vaccine strain SG 9R in the condition of protein-energy malnutrition. Thus, SR2 - N6 may be a safe and efficacious vaccine strain to prevent both fowl typhoid and paratyphoid.
Показать больше [+] Меньше [-]A novel biomarker of exercise-induced stress in horses
2015
Lee, S., College of Veterinary Medicine, BK21plus Program for Creative Veterinary Science Research, and Research Institute for Veterinary Science, Seoul National University, Seoul, Republic of Korea | Oh, D., College of Veterinary Medicine, BK21plus Program for Creative Veterinary Science Research, and Research Institute for Veterinary Science, Seoul National University, Seoul, Republic of Korea | Kim, M.C., College of Veterinary Medicine, BK21plus Program for Creative Veterinary Science Research, and Research Institute for Veterinary Science, Seoul National University, Seoul, Republic of Korea | Kim, Y., College of Veterinary Medicine, BK21plus Program for Creative Veterinary Science Research, and Research Institute for Veterinary Science, Seoul National University, Seoul, Republic of Korea | Ryu, D.Y., College of Veterinary Medicine, BK21plus Program for Creative Veterinary Science Research, and Research Institute for Veterinary Science, Seoul National University, Seoul, Republic of Korea
Exercise is one of the most common stressors in horses. Although various physiological parameters such as cortisol respond to exercise, there is no reliable parameter for the measurement of exercise-induced stress in sport horses. This study was performed to discover a new biomarker with high sensitivity for exercise-induced stress. The expression of fos mRNA was increased more than 10-fold in horse blood samples collected after an hour of exercise, as compared with before the exercise. The plasma cortisol levels were also increased after the exercise, but only by about two-fold. The fos mRNA levels were well-correlated with plasma cortisol concentrations. These findings suggest that fos mRNA expression in blood may be useful for the measurement of exercise-induced stress in horses.
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