著者

Ryoko NAKAGAWA Hiroaki MOKI Kazuhide HAYASHI Kaname OONIWA Kyori TOKUYAMA Tsutomu KAKUDA Kazuki YOSHIOKA Shinji TAKAI

出版者

JAPANESE SOCIETY OF VETERINARY SCIENCE

雑誌

Journal of Veterinary Medical Science (ISSN:09167250)

巻号頁・発行日

vol.80, no.5, pp.819-822, 2018 (Released:2018-05-18)

参考文献数

24

被引用文献数

12

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Rhodococcus equi was isolated from the granulomatous lesions of the lung, kidney, liver, and hepatic, mesenteric, and abomasum lymph nodes of a Japanese black heifer. R. equi isolates were analyzed by polymerase chain reaction for virulence-associated protein genes. The vapN gene was detected in all the isolates examined. This is the first report in which vapN-positive R. equi was isolated from cattle in Japan.

著者

Kazuki YOSHIOKA Aika ISHIKAWA Makoto SUGIYAMA Jun NAGASAO Motohiro KIKUCHI

出版者

Editorial Board of Okajimas Folia Anatomica Japonica

雑誌

Okajimas Folia Anatomica Japonica (ISSN:0030154X)

巻号頁・発行日

vol.94, no.1, pp.1-6, 2017 (Released:2017-12-06)

参考文献数

14

被引用文献数

1

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The present report describes a newborn calf with spina bifida that presented with a giant mass of the lumbar region, as well as subsequent gross, histological, and immunohistochemical examinations. A malformed Japanese black calf (estimated weight = 20 kg) was euthanized immediately after birth. A gross evaluation revealed a giant mass (approximately 60 cm × 30 cm × 15 cm) covered by the hair coat in the lumbar region and connected with the hair coat of the trunk. The mass surface was divided by a deep polygonal groove and externally resembled a lobulated kidney. Histology and immunohistochemistry revealed that the giant mass comprised a vessel, bronchiolus lined with cuboidal epithelium, and small alveolus. Bone bleaching revealed various abnormalities, including spina bifida, vertebral fusion, vertebral deformity, vertebral malformation, vertebral scoliosis, and coxal bone malformation. Following a suggestion that the giant lumbar region mass was occupied by lung tissue, this case was considered to involve an asymmetric conjoined duplicitas that resulted in a very rare dichotomous spondylosis malformation.

著者

Hideki OHNO Shunsuke GOTO Masao OWAKI Joji OHTA Naoshi NAKAJIMA Kaori NAKATA Ken-ichiro MUTOH Toshifumi OYAMADA Kazuki YOSHIOKA

出版者

オカジマ・フォリア・アナトミカ・ヤポニカ編集部

雑誌

Okajimas Folia Anatomica Japonica (ISSN:0030154X)

巻号頁・発行日

vol.90, no.2, pp.31-39, 2013 (Released:2013-10-10)

参考文献数

18

被引用文献数

1

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Androgen is closely involved as the cause of rupture of anterior cruciate ligament (ACL) in human. In dogs, however, factors contributing to rupture of ACL remain unknown. In this study, expression of androgen receptor (AR) and histological distribution of blood vessels in ACL, and serum testosterone concentration were investigated in relation with age and sex to confirm whether canine ACL is an androgen-responsive tissue. Materials of ACL were obtained from 26 dogs: 12 young female Beagles, 2 old female mixed breeds, 9 young male Beagles, and 3 old male mixed breeds. In all canine ACL, positive AR expression was recognized in the nuclei of the fibrocytes, fibroblasts, synovial cells, and vascular endothelial cells of ACL. Expressions of AR were lesser in old males compared to the young males; however, females had no age difference in expression. Distributions of blood vessels in the synovial membrane of the ligament were fewer in old dogs both of males and females than youngs. Although distributions of vessels in the interstitium were apparently fewer in young females. Serum testosterone concentration was significantly higher in young males. Females had no age difference in the levels. From these results, it is suggested that canine ACL is an androgen-responsive tissue, and this consideration seems to closely relate to the epidemiological background that the incidence of rupture of ACL of dogs is higher in females than in males.

著者

Hideki OHNO Yoko KOWATARI Masao OWAKI Joji OHTA Naoshi NAKAJIMA Kazuki YOSHIOKA Ken-ichiro MUTOH Toshifumi OYAMADA

出版者

オカジマ・フォリア・アナトミカ・ヤポニカ編集部

雑誌

Okajimas Folia Anatomica Japonica (ISSN:0030154X)

巻号頁・発行日

vol.89, no.2, pp.35-38, 2012 (Released:2012-10-27)

参考文献数

10

被引用文献数

3 7

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Anterior cruciate ligament (ACL) fibroblasts obtained from beagle dogs were cultured in basal medium containing different concentrations of 1 to 10-3 µM 5α-dihydrotestosterone (DHT) and in basal medium itself as a control. It was demonstrated that DHT promoted cell proliferation activity, expression of androgen receptor, and collagen synthesis in ACL fibroblasts as compared with control. These results suggest that sex hormones are involved in the sex difference seen in ACL rupture of dogs.