title: Histopathological changes in the pancreas of cattle with abdominal fat necrosis.
abstract: The association between pancreatic disorder and abdominal fat necrosis in cattle remains unclear. The pancreases of 29 slaughtered cattle with or without fat necrosis were collected to investigate pathological changes. Japanese Black (JB) cattle were classified into the FN group (with abdominal fat necrosis; n=9) and N group (without fat necrosis; n=5). The pancreases were also collected from 15 Holstein Friesian (HF) cows. All JB cattle showed high body condition scores. Regarding the pathological findings, fatty pancreas which involves adipocyte infiltration into the pancreas and fat necrosis (saponification) were observed in 25 and 27 cases, respectively. Immunohistochemical staining with anti-Iba-1 antibody showed large numbers of macrophages surrounding the saponified fat in the pancreas. CD3-positive T cells were significantly more common in the pancreas of both the FN and N groups compared with the HF group (P<0.05). Furthermore, fibrosis in the pancreas exhibited a correlative tendency with the formation of necrotic fat mass in the peritoneal cavity (P<0.1). These results indicate that obesity leads to increased severity of pancreatic disorder, including fatty pancreas and pancreatitis. The pathological lesions in the pancreas may play a key role in abdominal fat necrosis through the inflammatory process.
authors: Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, 5200, Kihara, Kiyotake, Miyazaki 889-1692, Japan.
authors: Chikako
authors: C
authors: Tani
authors: Watanyoo
authors: W
authors: Pratakpiriya
authors: Mineto
authors: M
authors: Tani
authors: Takenori
authors: T
authors: Yamauchi
authors: Takuya
authors: T
authors: Hirai
authors: Ryoji
authors: R
authors: Yamaguchi
authors: Hitoshi
authors: H
authors: Ano
authors: Hiromu
authors: H
authors: Katamoto
mesh_terms: D050153:Abdominal Fat / Q000473:pathology*; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000473:pathology*; D005218:Fat Necrosis / Q000473:pathology / Q000662:veterinary*; D005260:Female; D005355:Fibrosis / Q000662:veterinary; D007150:Immunohistochemistry; D008297:Male; D010179:Pancreas / Q000473:pathology*; D010182:Pancreatic Diseases / Q000473:pathology / Q000662:veterinary*