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Peste des petits ruminants virus infection of Black Bengal goats showed altered haematological and serum biochemical profiles
2018
Begum, Shahana(Bangladesh Agricultural University Department of Pathology) | Nooruzzaman, Mohammed(Bangladesh Agricultural University Department of Pathology) | Parvin, Murshida(Bangladesh Agricultural University Department of Pathology) | Mohanto, Nijaya(Bangladesh Agricultural University Department of Pathology) | Parvin, Rokshana(Bangladesh Agricultural University Department of Pathology) | Islam, Mohammad R.(Bangladesh Agricultural University Department of Pathology) | Chowdhury, Emdadul H.(Bangladesh Agricultural University Department of Pathology)
In Bangladesh, veterinarians often claim to reduce the mortality of natural peste des petits ruminants (PPR) outbreaks with the help of supportive fluid and electrolyte therapy. Information on haematological and biochemical parameters of PPR-infected goats, which is often altered because of associated tissue damages, is necessary to formulate the appropriate supportive therapy. This study determined the haematological and serum biochemical parameters of Black Bengal goats naturally infected with PPR virus. Blood and serum samples from 13 PPR-affected Black Bengal goats from 13 field outbreaks and 5 healthy goats were collected and analysed by routine haematological and biochemical examination. Haematological analysis of PRR-affected goats showed severe anaemia characterised by significant decrease in the values of haemoglobin, total erythrocyte counts (TECs) and packed cell volume (PCV). On the contrary, PPR-affected goats showed marked leucocytosis with absolute increase in lymphocytes and neutrophils counts compared to the healthy goats. Biochemical analysis revealed significant decrease in total protein and albumin level and increased creatine kinase, aspartate transaminase and alanine transaminase that mirrored the gross and histopathological changes in the PPR-affected goats. Significant increase in the values of sodium and chloride ions was found in the sera of PPR-infected goats. Peste des petits ruminants virus altered the haematological and serum biochemical parameters of the infected goats. Antidiarrheal agents with aqua solution together with other drugs to support liver and kidney function could help improve therapy of PPR-infected goats.
Показать больше [+] Меньше [-]Optimized computed tomography protocol for assessment of dentition in alpacas
2018
Fulkerson, Caroline V. | Lim, Chee Kin | Baird, Aubrey N. | Weil, Ann B. | Heng, Hock Gan | Gutierrez-Crespo, Beatrice | Moore, George E.
OBJECTIVE To determine the optimal protocol for acquisition of CT images of the dentition in alpacas. ANIMALS 3 healthy adult male alpacas. PROCEDURES Each alpaca was anesthetized with an IM injection of a combination of ketamine, xylazine, and butorphanol and positioned in sternal recumbency on the CT couch with its legs folded in a natural cush position and its head positioned within the isocenter of the gantry of a 64-slice CT scanner. Images were acquired by means of 6 protocols (sequential and helical modes at slice thicknesses of 1.25, 2.5, and 5 mm). Five images (2 molar, 2 premolar, and mandibular incisor teeth) were selected from each protocol for evaluation by 3 veterinary radiologists. For each image, tooth root visibility and sharpness and image noise artifact were subjectively evaluated on a 3-point scoring system. RESULTS Slice thickness significantly affected tooth root visibility and tooth root sharpness but did not affect image noise artifact. Acquisition mode significantly affected tooth root visibility and tooth root sharpness as well as image noise artifact. Tooth root visibility and sharpness did not differ significantly between the helical and sequential images when the slice thickness was 1.25 mm. Image noise artifact was greater for helical images than sequential images but did not differ by slice thickness within either acquisition mode. CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that for a 64-slice CT scanner, the optimal protocol for the acquisition of CT images of the dentition in alpacas was a sequential scan with a slice thickness of 1.25 mm.
Показать больше [+] Меньше [-]Detection and characterization of avian hepatitis E virus from broiler breeders and layers in Korea
2018
Moon, H.W., Kangwon National University, Chuncheon, Republic of Korea | Sung, H.W., Kangwon National University, Chuncheon, Republic of Korea | Kwon, H.M., Kangwon National University, Chuncheon, Republic of Korea
The helicase genes and hypervariable regions (HVRs) of three avian hepatitis E viruses (HEVs) detected at three different farms were sequenced and characterized. Two isolates (DW-L and GI-B2) were classified as genotype 2 and one isolate (GR-B) was classified as genotype 1. A phylogenetic tree, based on the helicase gene and HVR nucleotide sequences, revealed the newly detected viruses and other avian HEVs were classified similarly. Unlike previously reported avian HEVs, the DW-L isolate detected in broiler breeders with characteristic lesions of avian HEV had no prolinerich motif in its HVR, suggesting that the proline-rich motif is non-essential for viral replication and infection.
Показать больше [+] Меньше [-]Meningoencephalitis and pneumonia caused by Pasteurella multocida in rabbits
2018
Jeong, J., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Lee, K., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Choi, E.J., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Kim, H.Y., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Sohn, J.H., Gyeonguk Veterinary Service Laboratory, Andong, Republic of Korea | So, B.J., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Jung, J.Y., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea
Eight rabbits exhibited head tilt and subsequently died. At necropsy, three rabbits had crusty deposits in ears and four had reddish lungs. The main histopathological features were severe diffuse suppurative meningoencephalitis (75.0% of rabbits), fibrinopurulent pneumonia (37.5%), and otitis externa (37.5%). Pasteurella multocida (P. multocida) was isolated from brains, ears, and lungs. The capsular serogroups of the isolates were untypable. Based on histopathological features and bacterial analysis results, the rabbits were diagnosed as P. multocida infection. P. multocida infections might result in considerable economic loss in commercial rabbit production facilities in Korea.
Показать больше [+] Меньше [-]The effects of green tea (Camellia sinensis) flower extract on melanin synthesis in B16-F10 melanoma cells
2018
Chanuri-Yashara Dissanayake, Jeju National University, Jeju, Republic of Korea | Moon, H.H., Jeju National University, Jeju, Republic of Korea | Yang, K.M., Jeju National University Medium and Small Business Center, Jeju, Republic of Korea | Lee, Y., Jeju National University, Jeju, Republic of Korea | Han, C.H., Jeju National University, Jeju, Republic of Korea
The present study observed the effects of a green tea (Camellia sinensis) flower extract (GTFE) on melanin synthesis in B16-F10 melanoma cells. GTFE exhibited antioxidant activity on 2,2-diphenyl-1-picrylhydrazyl and inhibited mushroom tyrosinase activity in a dose-dependent manner. Furthermore, GTFE significantly diminished alphamelanocyte stimulating hormone (alpha-MSH) stimulated cellular melanin content and tyrosinase activity throughout the concentration range evaluated. Based on RNA sequencing analysis, differential gene expression patterns observed in alpha-MSH stimulated B16-F10 melanoma cells were normalized by the addition of GTFE. In particular, the expression levels of melanoregulin and tyrosinase genes which are key regulating genes in melanin synthesis were up-regulated by 3.5 and 3 fold respectively by alpha-MSH, and were normalized to control levels by the addition of GTFE. The results suggest that GTFE inhibits melanin synthesis in alpha-MSH stimulated B16-F10 melanoma cells by normalizing expression of genes that are essential for melanin synthesis. Overall, the results suggest that GTFE could be applied in the development of a whitening agent for the treatment of dermal hyperpigmentation.
Показать больше [+] Меньше [-]Prevalence of dog erythrocyte antigen 1, determined via immunochromatography, in domestic dogs in Korea
2018
Kim, E., National Institute of Animal Science, Rural Development Administration, Wanju, Republic of Korea | Choe, C., National Institute of Animal Science, Rural Development Administration, Wanju, Republic of Korea | Yoo, J.G., National Institute of Animal Science, Rural Development Administration, Wanju, Republic of Korea | Oh, S.I., National Institute of Animal Science, Rural Development Administration, Wanju, Republic of Korea | Jung, Y., National Institute of Animal Science, Rural Development Administration, Wanju, Republic of Korea | Cho, A., National Institute of Animal Science, Rural Development Administration, Wanju, Republic of Korea | Kim, S., National Institute of Animal Science, Rural Development Administration, Wanju, Republic of Korea | Do, Y.J., National Institute of Animal Science, Rural Development Administration, Wanju, Republic of Korea
Blood group determination in dogs is an important factor in transfusion medicine to minimize immediate or delayed adverse reactions after red blood cells transfusion in small animal clinics. Dog erythrocyte antigen (DEA) 1 is the most important blood type due to its high degree of antigenicity causing acute transfusion adverse reactions. The aim of this study was to investigate the prevalence of DEA 1 in various dog breeds in Korea. As a result of testing 592 blood samples from more than 35 dog breeds, DEA 1 blood typing for each breed showed that 57.8% of Malteses, 63.3% of Poodles, 76.2% of Mastiff-like dogs, 72.5% of Pomeranians, 47.7% of Shih Tzus, 70.3% of mixed breeds, 60.0% of Yorkshire Terriers, and 71.4% of Beagles were DEA 1-positive. Miniature Schnauzers and Jindo breeds had a significantly high prevalence (100%) of DEA 1-positive dogs compared to that in other small breed dogs. This is the first report of immunochromatography-detected DEA 1 prevalence in various domestic dog breeds. Although additional studies need clarifying the potential blood transfusion risks in domestic breed dogs with DEA 1, the results of this study may be useful when selecting a blood donor.
Показать больше [+] Меньше [-]Oral malodor-reducing effects by oral feeding of Weissella cibaria CMU in Beagle dogs
2018
Do, K.H., Chungbuk National University, Cheongju, Republic of Korea | Park, H.E., Chungbuk National University, Cheongju, Republic of Korea | Kang, M.S., Research Institute, Oradentics Inc., Seoul, Republic of Korea | Kim, J.T., Research Institute, Oradentics Inc., Seoul, Republic of Korea | Yeu, J.E., Research Institute, Oradentics Inc., Seoul, Republic of Korea | Lee, W.K., Chungbuk National University, Cheongju, Republic of Korea
This study assessed the effects of Weissella cibaria (W. cibaria) CMU on oral health in male and female beagles (n = 18) by measuring oral malodor and periodontal disease-related parameters (calculus, plaque, and gingivitis indices). Oral malodor and indicators of periodontal disease were assessed in five treatment groups: negative control (scaling and 0.24 mg of maltodextrin, n = 3), positive control (0.24 mg of maltodextrin, n = 3), and W. cibaria CMU groups (each n = 4) at low (CMU-L, 2 × 107 colony forming unit [CFU]), medium (CMU-M, 2 × 108 CFU), and high (CMU-H, 2 × 109 CFU) concentrations. After feeding with W. cibaria CMU for 6 weeks, total volatile sulfur compound concentrations in the CMU-L (2.0 plus-minus 1.04 ng/10 mL), CMU-M (2.4 plus-minus 1.05 ng/10 mL), and CMU-H (2.6 plus-minus 1.33 ng/10 mL) groups were significantly lower than in the positive control group (3.2 plus-minus 1.65 ng/10 mL). Also, CMU-L (1.4 plus-minus 0.83 ng/ 10 mL) and CMU-H (1.9 plus-minus 1.14 ng/10 mL) groups had methyl mercaptan levels lower than that in the positive control group (2.4 plus-minus 1.21 ng/10 mL) at week 2. The plaque index was significantly lower in the CMU-H group (4.5 plus-minus 0.28) than in the positive control group (5.9 plus-minus 1.08) at week 6. W. cibaria CMU could be useful as a novel oral hygiene probiotics for reducing volatile sulfur compounds production and inhibiting plaque growth in companion animals.
Показать больше [+] Меньше [-]Ectopic migration of Dirofilaria immitis in a Eurasian otter (Lutra lutra) in Korea
2018
Jung, J.Y., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Lee, K., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Seo, H.J., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Cho, Y.S., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Kim, Y.D., Onnury Animal Clinic, Suncheon, Republic of Korea | Kim, J.H., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | So, B.J., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Choi, E.J., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea
An 8-year-old female Eurasian otter (Lutra lutra) reared in a wetland center, died 2 h after sudden onset of astasia and dyspnea despite medical treatment. Gross examination of internal organs revealed 10 adult filarioid nematodes in the right ventricle of the heart and three between the left and right cerebral hemispheres. All nematodes were identified as Dirofilaria immitis by direct microscopy and polymerase chain reaction assay. Histopathological observation revealed multifocal hemorrhage in the cerebral subarachnoid space and focal necrosis with hemorrhage in the cerebellar parenchyma. Although rare, veterinarians should consider cerebral dirofilariasis as a differential diagnosis in unexplained neurological cases.
Показать больше [+] Меньше [-]Idiopathic type-4 hiatal hernia in a middle-aged cat
2018
Kim, G.N., Konkuk University, Seoul, Republic of Korea | Jeong, S.W., Konkuk University, Seoul, Republic of Korea | Yoon, H.Y., Konkuk University, Seoul, Republic of Korea | Han, H.J., Konkuk University, Seoul, Republic of Korea
A 6-year-old female domestic short hair cat presented with acute onset of vomiting, anorexia, lethargy, and tachypnea. The cat was apparently healthy prior to presentation without history of trauma. On diagnostic imagings, the entire stomach and spleen were detected in the thoracic cavity. An emergent celiotomy was performed, and a type4 hiatal hernia was confirmed; the stomach, spleen, pancreas, and duodenum were herniated through the esophageal hiatus. It was corrected using phrenicoplasty, esophagopexy, and left-sided gastropexy and there was no recurrence 16 months after surgery. This is the first case report of an idiopathic type-4 hiatal hernia in a cat.
Показать больше [+] Меньше [-]Prevalence state of canine brucellosis in South Korea during 2015 and 2016
2018
Jung, J.Y., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Yoon, S.S., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Lee, S.H., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Park, J.W., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Lee, J.J., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Her, M., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | So, B., Animal and Plant Quarantine Agency, Gimcheon, Republic of Korea | Kim, J.H., Jeju National University, Jeju, Republic of Korea
We investigated the prevalence of canine brucellosis in companion and stray dogs between March 2015 and December 2016 and determined the disease characteristics based on the geographic distribution, sex and age of the dogs in South Korea. We conducted a large-scale survey using serological and bacteriological tests. Samples were collected from 2,394 dogs (1,825 companions and 569 strays). Thirty (1.3%) samples were positive for Brucella canis antibodies including 16 (0.9%) from companion dogs and 14 (2.5%) from stray dogs. Two (1.0%) of the 196 samples cultured from the stray dogs were positive. When compared with male dogs, the female companion and stray dogs had a significantly higher prevalence of brucellosis. Moreover, the prevalence of canine brucellosis was significantly higher in stray dogs older than 6 years and the prevalence of the disease in companion dogs was highest in Incheon (2.1%) and Jeolla (2.1%) provinces. Stray dogs from the Daejeon metropolitan area had the highest prevalence of brucellosis (7.9%). National control measures for canine brucellosis have not previously been implemented. Our findings suggest that appropriate screening tests and control measures are necessary to improve the health of dogs and to protect public health in Korea, particularly with the rapid growth of the companion animal industry.
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