- 著者
-
Go SUGAHARA
Ichiro NAITO
Yuichi MIYAGAWA
Takaaki KOMIYAMA
Naoyuki TAKEMURA
Ryosuke KOBAYASHI
Takayuki MINESHIGE
Junichi KAMIIE
Kinji SHIROTA
- 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.15-0117, (Released:2015-04-17)
The renal biopsy tissue from a 9-month-old, male Pyrenean Mountain dog with renal disorder and severe proteinuria was examined. Ultrastructural examination revealed multilaminar splitting and fragmentation of the glomerular basement membrane (GBM) and diffuse podocyte foot process effacement. Immunofluorescent staining for α (IV) chains revealed presence of α5 (IV) and complete absence of α3 (IV) and α4 (IV) chains in the GBM. Immunohistochemistry also revealed decreased and altered expression of nephrin and podocin in the glomeruli compared with normal canine glomeruli. These results suggested that the glomerular disease of the present case might be consistent with canine hereditary nephropathy resembling human Alport syndrome caused by genetic defect of type IV collagen, and indicated possible contribution of podocyte injury to severe proteinuria in this case.