文献一覧: Yasuyuki KANEKO (著者)

27 0 0 0 OA Identification of domestic cat hepadnavirus from a cat blood sample in Japan

著者: Kazuki TAKAHASHI Yasuyuki KANEKO Akiko SHIBANAI Shushi YAMAMOTO Ayana KATAGIRI Tatsuyuki OSUGA Yoshiyuki INOUE Kohei KURODA Mika TANABE Tamaki OKABAYASHI Kiyokazu NAGANOBU Isao MINOBE Akatsuki SAITO
出版者: JAPANESE SOCIETY OF VETERINARY SCIENCE
雑誌: Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日: pp.22-0010, (Released:2022-03-24)
被引用文献数: 16

The hepatitis B virus (Hepadnaviridae) induces chronic hepatitis and hepatic cancer in humans. A novel domestic cat hepadnavirus (DCH) was recently identified in several countries, however, the DCH infection status of cats in Japan is unknown. Therefore, we investigated the DCH infection rate of 139 cat samples collected in Japan. We identified one positive blood sample (0.78%) from a 17-year-old female cat with chronically elevated alanine aminotransferase. Phylogenetic analysis demonstrated that the DCH strain identified in this study is genetically different from strains in other countries. Further investigations are required to elucidate the evolution of DCH and the impact of DCH infection on hepatic diseases in domestic cats.

2022-03-29 18:58:39
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5 0 0 0 OA Effects of ozonated autohemotherapy on the antioxidant capacity of Thoroughbred horses

著者: Nao TSUZUKI Yoshiro ENDO Lisa KIKKAWA Kenji KOROSUE Yasuyuki KANEKO Akira KITAUCHI Hiromu KATAMOTO Yuichi HIDAKA Mitsuyoshi HAGIO Shidow TORISU
出版者: 公益社団法人日本獣医学会
雑誌: Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日: vol.77, no.12, pp.1647-1650, 2015 (Released:2016-01-01)
参考文献数: 17
被引用文献数: 2 12

The performance of horses undergoing regular intense exercise is adversely affected by oxidative stress. Thus, it is important to increase antioxidant production in horses in order to reduce oxidative stress. Ozonated autohemotherapy (OAHT) reportedly promotes antioxidant production. This study aimed to evaluate the effects of OAHT on antioxidant capacity. Ten Thoroughbred horses were used in this study. After the OAHT, we collected serum samples and measured biological antioxidant potential (BAP). We found that BAP began to increase after the OAHT and was significantly higher in the OAHT group than at 3 (P<0.01) and 7 days (P<0.05) after OAHT than in the control group at 3 and 7 days after starting collection of blood samples. Therefore, it was shown that OAHT improved the antioxidant capacity of the horses.

2017-03-06 03:16:36
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2 0 0 0 OA Pseudorabies virus infection in hunting dogs in Oita, Japan: report from a prefecture free from Aujeszky’s disease in domestic pigs

著者: Chiho KANEKO Yasuyuki KANEKO Putu Eka SUDARYATMA Hirohisa MEKATA Yumi KIRINO Ryoji YAMAGUCHI Tamaki OKABAYASHI
出版者: JAPANESE SOCIETY OF VETERINARY SCIENCE
雑誌: Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日: pp.20-0450, (Released:2021-02-15)
被引用文献数: 10

We isolated two pseudorabies virus (PRV) isolates (designated OT-1 and OT-2) from two hunting dogs exhibiting neurological manifestations after eating the flesh of wild boar hunted in Oita prefecture, Kyushu Island, Japan. The isolates corresponded to a previously reported PRV (MY-1 strain) isolated from a hunting dog in neighboring Miyazaki prefecture, and it clustered into genotype II based on the glycoprotein C sequence. Our results suggest that this common PRV strain may have been maintained in wild boars on Kyushu Island even though domestic pigs in this area have attained an Aujeszky’s disease-free status.

2021-02-16 02:50:09
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2 0 0 0 OA Arterial blood gas anomaly in canine hepatobiliary disease

著者: Yasuyuki KANEKO Shidow TORISU Takumi KOBAYASHI Shinya MIZUTANI Nao TSUZUKI Hiroko SONODA Masahiro IKEDA Kiyokazu NAGANOBU
出版者: 公益社団法人日本獣医学会
雑誌: Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日: pp.15-0169, (Released:2015-08-08)
被引用文献数: 1 2

Arterial blood gas analysis is an important diagnostic and monitoring tool for respiratory abnormalities. In human medicine, lung complications often occur as a result of liver disease. Although pulmonary complications of liver disease have not been reported in dogs, we have frequently encountered hypoxemia in dogs with liver disorders, especially extrahepatic biliary obstruction. In addition, respiratory disorders account for 20% of perioperative fatalities in dogs. Therefore, in this study, we evaluated the respiratory status in dogs with hepatobiliary disease by arterial blood gas analysis. PaO2 and PaCO2 were measured. Alveolar-arterial oxygen difference (AaDO2), the indicator of gas exchange efficiency, was calculated. Compared to healthy dogs (control group), hepatobiliary disease dogs had significantly lower PaO2 and higher AaDO2. Hypoxemia (PaO2 of ≤80 mmHg) was observed in 28/71 dogs with hepatobiliary disease. AaDO2 was higher (≥30 mmHg) than the control group range (11.6 to 26.4 mmHg) in 32/71 hepatobiliary disease dogs. By classifying type of hepatobiliary disease, dogs with extrahepatic biliary obstruction and chronic hepatitis showed significantly lower PaO2 and higher AaDO2 than in a control group. Dogs with chronic hepatitis also had significantly lower PaCO2. The present study shows that dogs with hepatobiliary disease have respiratory abnormalities more than healthy dogs. Preanesthetic or routine arterial blood gas analysis is likely beneficial to detect the respiratory abnormalities in dogs with hepatobiliary disease, especially extrahepatic biliary obstruction and chronic hepatitis.

2015-08-21 20:42:32
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1 0 0 0 OA Expression patterns of aquaporins 1, 3, 5 in canine mammary gland carcinomas

著者: Naruki FUJIMOTO Yoshiki TANIGUCHI Hiroko SONODA Yasuyuki KANEKO Toshiyuki MATSUZAKI Teruo ITOH Takuya HIRAI Kazuyuki UCHIDA Masahiro IKEDA
出版者: JAPANESE SOCIETY OF VETERINARY SCIENCE
雑誌: Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日: pp.23-0278, (Released:2023-12-20)

Aquaporins (AQPs) are water channel proteins, and the expression of AQPs in carcinoma cells has received much attention over the last 15 years. In the veterinary field, however, little is known about the expression of AQPs. In the present study using immunohistochemistry, we examined the expression of AQP1, AQP3, and AQP5 in canine mammary gland carcinomas. The 27 samples comprised 10 grade I, 12 grade II, and 5 grade III samples (See Materials and Methods section for grade classification method). AQP1 was expressed in only 2 of the grade III carcinomas, and the expression was limited to spindle-shaped cells in the solid structure and on the outside of the solid mass. AQP3-positive cells were observed in 20 of 22 grade I and II samples. On the other hand, among grade III carcinomas, AQP3 was expressed only in spindle-shaped cells in 1 sample. AQP5 was expressed in all grade I and II carcinomas but not in the grade III tumors. In addition, enhanced expression of basolateral AQP3 and apical AQP5 was observed in lobular hyperplastic cells. These results suggest that the expression patterns of AQP3 and AQP5 can be of help for judging the grading of canine mammary tumors and that AQP1 is likely to be involved in metastasis. Moreover, AQP3 and AQP5 might be relevant to lactation in female dogs.

2023-12-28 05:42:43
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1 0 0 0 OA Retrospective analysis of canine gallbladder contents in biliary sludge and gallbladder mucoceles

著者: Shinya MIZUTANI Shidow TORISU Yasuyuki KANEKO Shushi YAMAMOTO Shinsuke FUJIMOTO Benedict Ong Huai ERN Kiyokazu NAGANOBU
出版者: 公益社団法人日本獣医学会
雑誌: Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日: pp.16-0562, (Released:2016-12-17)
被引用文献数: 19

The pathophysiology of canine gallbladder diseases, including biliary sludge, gallbladder mucoceles, and gallstones, is poorly understood. This study aimed to evaluate the composition of gallbladder contents and bacterial infection of the gallbladder in order to elucidate the pathophysiology of biliary sludge and gallbladder mucoceles. A total of 43 samples of canine gallbladder contents (biliary sludge, 21 and gallbladder mucoceles, 22) were subjected to component analysis by infrared spectroscopy, and the resultant infrared spectra were compared with that of swine mucin. Of the 43 samples, 41 were also evaluated by aerobic and anaerobic bacterial culture. The contents of 20 (95.2%) biliary sludge and 22 (100%) gallbladder mucocele samples exhibited similar infrared spectra as swine mucin. Although biliary sludge and gallbladder mucocele contents exhibited similar infrared spectra, one sample of biliary sludge (4.8%) was determined to be composed of proteins. The rate of bacterial infection of the gallbladder was 10.0% for biliary sludge and 14.3% for gallbladder mucoceles. Almost all of the identified bacterial species were intestinal flora. These results indicate that the principal components of gallbladder contents in both gallbladder mucoceles and biliary sludge are mucins and that both pathophysiologies exhibit low rates of bacterial infection of the gallbladder. Therefore, it is possible that gallbladder mucoceles and biliary sludge have the same pathophysiology, and, rather than being independent diseases, they could possibly represent a continuous disease. Thus, biliary sludge could be considered as the stage preceding the appearance of gallbladder mucoceles.

2016-12-20 03:26:13
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1 0 0 0 OA Arterial blood gas anomaly in canine hepatobiliary disease

著者: Yasuyuki KANEKO Shidow TORISU Takumi KOBAYASHI Shinya MIZUTANI Nao TSUZUKI Hiroko SONODA Masahiro IKEDA Kiyokazu NAGANOBU
出版者: 公益社団法人日本獣医学会
雑誌: Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日: vol.77, no.12, pp.1633-1638, 2015 (Released:2016-01-01)
参考文献数: 23
被引用文献数: 1 2 1

2016-01-19 00:24:08
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1 0 0 0 OA A case report of suspected hepatopulmonary syndrome secondary to ductal plate malformation with chronic active hepatitis in a dog

著者: Yasuyuki KANEKO Shidow TORISU Mitsuyoshi HAGIO Ryoji YAMAGUCHI Shinya MIZUTANI Kiyokazu NAGANOBU
出版者: 公益社団法人日本獣医学会
雑誌: Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日: pp.15-0425, (Released:2015-11-30)
被引用文献数: 2

Hepatopulmonary syndrome (HPS) is a respiratory complication of hepatic disease, that is well recognized in humans and defined by the presence of 1) liver disease, 2) hypoxemia and/or high alveolar-arterial oxygen gradient (AaDO2) and 3) intrapulmonary vasodilatation. The present report describes a similar case of HPS in a dog. A six-month-old Papillon was diagnosed with ductal plate malformation with chronic active hepatitis and showed progressive increases in AaDO2 over the course of the following six months. The presence of intrapulmonary vasodilatation was confirmed by agitated saline contrast transthoracic echocardiography. Also, the absence of congenital cardiac defect was confirmed by transthoracic echocardiography. From these results, we suspected that this dog had HPS. This is the first description of suspected canine HPS.

2015-12-02 23:11:20
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1 0 0 0 OA Effects of ozonated autohemotherapy on the antioxidant capacity of Thoroughbred horses

著者: Nao TSUZUKI Yoshiro ENDO Risa KIKKAWA Kenji KOROSUE Yasuyuki KANEKO Akira KITAUCHI Hiromu KATAMOTO Yuichi HIDAKA Mitsuyoshi HAGIO Shidow TORISU
出版者: 公益社団法人日本獣医学会
雑誌: Journal of Veterinary Medical Science (ISSN:09167250)
巻号頁・発行日: pp.15-0225, (Released:2015-07-10)
被引用文献数: 2 12

2015-08-04 14:16:24
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