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Journal of Veterinary Medical Science

Wen-Sheng Fan, He-Ming Li, Yi-Ning He, Ning Tang, Li-Hua Zhang, Hai-Yong Wang, Lian Zhong, Jian-Cai Chen, Tian-Chao Wei, Teng Huang, Mei-Lan Mo, Ping Wei
Live attenuated vaccines are critical in the control of avian infectious bronchitis. It is necessary to know the protection conferred by commonly used commercial live vaccines. In this study, specific pathogen-free chicks were vaccinated with the commercial live vaccines H120, 4/91 and LDT3-A. Blood samples were collected at weekly intervals for the detection of IBV-specific antibodies and quantification of CD4+ and CD8+ T lymphocytes. At 21 days post-inoculation the vaccinated birds were challenged with the IBV prevalent local strains GX-YL5, GX-GL11079 and GX-NN09032, respectively...
July 18, 2018: Journal of Veterinary Medical Science
Noriko Funasaka, Motoi Yoshioka, Keiichi Ueda, Haruka Koga, Makio Yanagisawa, Sotaro Koga, Kouji Tokutake
Long-term monitoring of circulating progesterone levels in three captive female false killer whales, Pseudorca crassidens, was conducted to characterize their reproductive events and to reveal the relationship between their estrous cycles or pregnancies and peripheral white blood cell (WBC) counts. Blood samples were collected at 2-3-day intervals or on a weekly-to-monthly basis for up to 10 years, from 2006 to 2017. In two mature females (initial body lengths of 4.22 and 4.07 m), some cyclic progesterone elevations were detected during the study period; the estimated mean (± SE) estrous cycle length was 40...
July 18, 2018: Journal of Veterinary Medical Science
Nabil Misk, Tarik Misk, Ahmed El-Khamary, Mohamed Semeika
The present retrospective study was conducted from 2003 to 2015 in Egypt to document common surgical affections of the udder and teat in cattle and buffaloes, and determine medical and surgical treatment options that are feasible in a field setting. We diagnosed 19 different surgical affections and classified them into 4 groups according to their location. Teat orifice affections (12.41%) included imperforate teat, contracted teat orifice, enlarged teat orifice, and black spot. Teat cistern affections (23.76%) included teat fistula, dilated teat cistern, teat polypi, and webbed teat...
July 18, 2018: Journal of Veterinary Medical Science
Do Tien Duy, Hanjin Kim, Jiwoon Jeong, Kee Hwan Park, Siyeon Yang, Taehwan Oh, Seeun Kim, Ikjae Kang, Chanhee Chae
The objective of this study was to compare the efficacy of a commercial porcine reproductive and respiratory syndrome (PRRS) subunit vaccine and a prototype PRRS II subunit vaccine against a highly pathogenic PRRS virus (HP-PRRSV) in pigs. Both vaccines were administered intramuscularly in 2 doses at 21 and 42 days of age, and the pigs were challenged intranasally with HP-PRRSV at 63 days of age. Pigs vaccinated with the prototype PRRS II subunit vaccine had significantly higher anti-PRRSV antibody titers, a greater number of interferon-γ-secreting cells, and a greater reduction in lung lesion scores compared to pigs vaccinated with the commercial PRRS subunit vaccine...
July 18, 2018: Journal of Veterinary Medical Science
Tatsuya Maekawa, Takeshi Ohta, Shinichi Kume
In recent years, a relationship between diabetes and neurodegenerative diseases, such as Parkinson's disease, Alzheimer disease or depression, has been proposed. In this study, pathophysiological changes in the brain, especially in the hippocampus, of male SDT fatty rats with obesity and hyperglycemia were investigated. Brains of SD rats and SDT fatty rats were collected at 32 and 58 weeks of age, and parietal cortical thickness and number of pyramidal cells in the hippocampal cornu ammonis 1 and 3 (CA1 and CA3) regions were measured...
July 17, 2018: Journal of Veterinary Medical Science
Tomoya Iizuka, Kenichi Masui, Hideko Kanazawa, Ryohei Nishimura
The relationships between propofol plasma concentrations and the pharmacodynamic endpoints may differ according to a type of airway device. To clarify these relationships in different airway devices would be useful to avoid the complication such as apnea and intraoperative awareness. The aim of this study was to investigate the influence of difference of airway device on propofol requirement during maintenance of anesthesia in dogs. We compared the influence of airway devices on the plasma propofol concentrations for apnea, response to mechanical ventilation, and response to airway device between endotracheal tube (ETT) and supraglottic airway device (SGAD) in Beagles...
July 17, 2018: Journal of Veterinary Medical Science
Fumi Murakoshi, Kenji Koyama, Takumi Akasaka, Noriyuki Horiuchi, Kentaro Kato
Bats are potential reservoirs of Cryptosporidium and Eimeria. The genus Cryptosporidium infects various vertebrates and causes a diarrheal disease known as cryptosporidiosis. Many epidemiological studies in wild animals have been performed; however, most of them relied on only PCR-based detection because of the difficulty of performing pathological analyses. Accordingly, the natural host and pathogenicity of Cryptosporidium bat genotypes remain unclear. In this study, we captured Eptesicus nilssonii (Northern bats) in Hokkaido, Japan...
July 16, 2018: Journal of Veterinary Medical Science
Miyuu Tanaka, Mizuki Kuramochi, Satoshi Nakanishi, Mitsuru Kuwamura, Takashi Kuramoto
Polyomaviruses (PyVs) infect a wide range of animals and provoke wasting diseases, particularly in immunosuppressed hosts. Recently, a novel Rattus norvegicus polyomavirus 2 (RatPyV2) has been identified in a colony of X-linked severe combined immunodeficiency (X-SCID) rats in the United States. Here, we describe the first report of the RatPyV2 infection in an X-SCID rat colony in Japan. The affected rats exhibited adult-onset wasting. Histologically, we observed large basophilic intranuclear inclusion bodies within the hyperplastic or dysplastic epithelial cells in the salivary glands, Harderian glands, extraorbital lacrimal glands, and in respiratory and reproductive tissues...
July 16, 2018: Journal of Veterinary Medical Science
Satoshi Takagi, Yumiko Kagawa, Kiwamu Hanazono, Shoko Murakami, Tatsuya Deguchi, Yusuke Izumi, Kenji Hosoya, Sangho Kim, Masahiro Okumura
A 10-year-old cat presented for evaluation with a 1-month history of salivation and oral bleeding. A right mandibular mass was palpated and computed tomography examination revealed entire bone proliferation. Mandibular bone biopsy was performed, and histopathological diagnosis was vascular hamartoma. The cat suddenly died on day 140.
July 13, 2018: Journal of Veterinary Medical Science
Ye-In Oh, Doo-Sung Cheon, Jung-Keun Lee, Mi-Hyun Choi, Sun-Young Hwang, Hyun-Wook Kim, Byung-Jae Kang, Hwa-Young Youn
A 12-year-old neutered male domestic shorthair cat was presented with a 3-year history of multiple nonpruritic, ulcerated, plaque-like skin lesions but no other clinical signs. A systemic examination revealed mild lymphadenopathy. Histopathologic analysis of the skin lesions revealed multicentric basosquamous carcinoma (BSC). Immunohistochemical analysis, PCR, and sequencing detected Felis catus papillomavirus type 2 (FcaPV-2) within the tumors. As BSC is rare in cats, clinical behavior has not been established...
July 11, 2018: Journal of Veterinary Medical Science
Kazunori Ueda, Tomoyuki Kawai, Haruki Senno, Atsushi Shimizu, Akira Ishiko, Masahiko Nagata
Patellar luxation is abnormal displacement of the patella from the femoral trochlear groove. It is seen primarily in small breed dogs and causes pain and limited mobility of the stifle joint. This study aimed to investigate the relationship among patellar luxation, skin extension, and skin collagen fibril diameter. Nine dogs with patellar luxation and five clinically normal dogs were enrolled in the study. We measured the skin extension and investigated the ultrastructure of the skin and patellofemoral ligament by histopathology and transmission electron microscopy...
July 6, 2018: Journal of Veterinary Medical Science
Makoto Nakata, Yasutsugu Miwa, James K Chambers, Tsubasa Saito, Kazuyuki Uchida
A 14-month-old, female mini rex was referred for a detailed examination because of exercise intolerance with associated dyspnea. The thoracic radiograph demonstrated severe cardiac enlargement and elevation of the trachea. The echocardiography revealed dilatations of the right-side heart and pulmonary artery, and the color flow Doppler echocardiography demonstrated an atrial septum defect with left to right shunt, resulting in a disturbed flow. The rabbit died 19 days after the initial presentation, and a necropsy was performed...
July 5, 2018: Journal of Veterinary Medical Science
Yahiro Mukai, Masayuki Horie, Keizo Tomonaga
Endogenous bornavirus-like elements (EBLs) are sequences derived from bornaviruses (the family Bornaviridae) that are integrated into animal genomes. They are formed through germline insertions of segments of bornaviral transcripts into animal genomes. Because EBLs are molecular fossils of bornaviruses, they serve as precious sources of information to understand the evolutionary history of bornaviruses. Previous studies revealed the presence of many EBLs in bat genomes, especially in vesper bats, and suggested the long-term association between bats and bornaviruses...
July 5, 2018: Journal of Veterinary Medical Science
Firoj Alom, Masumi Miyakawa, Hayato Matsuyama, Hiroshi Nagano, Yasuyuki Tanahashi, Toshihiro Unno
ML204, a potent transient receptor potential canonical 4 (TRPC4) channel blocker, is often used to elucidate the involvement of TRPC4 channels in receptor-operated signaling processes in visceral smooth muscles. In the present study, we investigated the possible antagonistic actions of ML204 on M2 and M3 muscarinic receptors, which mediate contractions in mouse ileal and detrusor smooth muscles. In ileal and detrusor smooth muscle preparations, ML204 (3 or 10 µM) significantly inhibited electrical field stimulation (EFS)-evoked cholinergic contractions...
July 5, 2018: Journal of Veterinary Medical Science
Mioko Honda, Mamoru Sawaya, Kensuke Taira, Akiko Yamazaki, Yoichi Kamata, Hideki Shimizu, Naoki Kobayashi, Ryoichi Sakata, Hiroshi Asakura, Yoshiko Sugita-Konishi
Recently, the Sarcocystis parasite in horse and deer meat has been reported to be a causative agent of acute food poisoning, inducing nausea, vomiting and diarrhea. Compared with other causative agents, such as bacteria, viruses and other parasites, in deer meat, the Sarcocystis species parasite, including its stability under various conditions, is poorly understood. In this study, we assessed the viability of Sarcocystis spp. and the activity of their diarrhea toxin (a 15-kDa protein) in deer meat under conditions of freezing, cold storage, pH change and curing...
July 3, 2018: Journal of Veterinary Medical Science
Ryota Koba, Sakurako Shoji, Sawami Yoshimura, Yukinobu Tohya
The retinoic acid-inducible gene-I-like receptor (RLR) family is a group of cytosolic RNA helicase proteins that play an important role in sensing viral RNAs. Melanoma differentiation-associated gene 5 (MDA5), an RLR protein, recognizes viral double-stranded RNA and 5'-triphosphate single-stranded RNA in the cytoplasm for the expression of type I interferon (IFN). The expression of MDA5 is also induced by type I IFN. In the present study, we determined the complete coding sequence of the feline MDA5 gene, and analyzed its structure...
July 3, 2018: Journal of Veterinary Medical Science
Yupadee Hengjan, Nikom Sae-Koo, Thanmaporn Phichitrasilp, Yasushige Ohmori, Hatsuki Fujinami, Eiichi Hondo
Flying foxes have been widely studied as they are well-known reservoirs of infectious agents. Understanding their population dynamics might help to explain seasonal patterns of disease prevalence, and contribute towards the conservation of flying fox populations. Therefore, this study explored the annual variation in the number of deaths in P. lylei. The study was conducted from 2015-2017, at a Buddhist temple in Thailand, which is the roosting site of P. lylei. The average total number of bat deaths in a month significantly varied between times of a year...
July 2, 2018: Journal of Veterinary Medical Science
Javier Ojeda, Miguel Salgado, Carolina Encina, Camila Santamaria, Gustavo Monti
A domestic cat dwelling in a dairy cattle farm with haematuria was referred for a physical examination. The examination showed no abnormalities therefore complementary exams were performed. Leukocytosis with neutrophilia, monocytosis and hyperproteinaemia were detected. The urine analysis showed a bacterial infection without ultrasound findings. Serological titers to Leptospira interrogans serovar Pomona and Autumnalis were detected. Molecular analysis demonstrated the presence of Leptospira spp. in urine. The findings were consistent with subclinical leptospirosis...
July 2, 2018: Journal of Veterinary Medical Science
Yi-Ming Chen, Chi-Chang Huang, Chien-Yu Hsiao, Sindy Hu, I-Lin Wang, Hsin-Ching Sung
Ludwigia octovalvis extract (LOE) is a widely used traditional Chinese herbal medicine. To date, few studies have demonstrated the effect of LOE supplementation on exercise performance, physical fatigue and biochemical profile. The purpose of this study is to evaluate the potential beneficial effects of LOE extract on fatigue and ergogenic functions following physiological challenge. Male ICR mice from 3 groups (n=8 per group) were orally administered LOE for 4 weeks at 0 (vehicle), 61.5 (LOE-1X) or 307.5 (LOE-5X) mg/kg/day...
June 29, 2018: Journal of Veterinary Medical Science
Khanh Thuan Nguyen, Mizuki Hasegawa, Thu Tam Nguyen, Thi Minh Tam Vo, Thi Hong To Tran, Thi Lien Khai Ly, Takahide Taniguchi, Hideki Hayashidani
A total of 201 wild geckos from the region of Mekong Delta, Vietnam were collected to determine the viable number and survival period of Salmonella in their feces. Of the 101 samples examined, 24 (23.8%) were Salmonella positive. These 24 geckos excreted Salmonella in their feces in a range of 1 to 8.6 log CFU/g with a mean of 4.5 ± 3.2 log CFU/g. Among the Salmonella serovars, Salmonella Weltevreden was the most predominant serovar (37.5%). Moreover, Salmonella could survive for 6 weeks in gecko feces at room temperature in Vietnam...
June 27, 2018: Journal of Veterinary Medical Science
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