K Ochiai
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Spontaneous cholangiohepatitis in broiler chickens: immunohistochemical study of Ito cells Handharyani, E; Ochiai, K; Winarsih, W; Harlina, E; Estuninngsih, Salfina Nurdin
Jurnal Ilmu Ternak dan Veteriner Vol 6, No 4 (2001): DECEMBER 2001
Publisher : Indonesian Center for Animal Research and Development (ICARD)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (169.803 KB) | DOI: 10.14334/jitv.v6i4.245

Abstract

The function of Ito cells is expanding from a fat-storing site to a center of extracellular matrix metabolism and mediator production in the liver. Immunohistochemical reactivities of Ito cells were examined in eight livers of broiler chickens affected with spontaneous cholangiohepatitis and six chicken livers with malformation of extrahepatic biliary tracts. The livers in both groups revealed severe diffuse fibrosis. Ito cells expressing HHF35 muscle actin and desmin actively proliferated in the fibrotic foci of the all livers. The immunoreactivities of Ito cells to antibodies were enhanced compared with those in normal livers. There were no immunohistochemical differences between the Ito cells of two groups. From these findings, it was suggested that Ito cells actively proliferate and show enhanced immunoreactivities in the livers affected with cholangiohepatitis andmalformation of extrahepatic biliary tracts.   Key words : Cholangiohepatitis, immunohistochemistry, ito cell, broiler chicken
Extrahepatic bile duct ligation in broiler chickens: ultrastructural study of Ito cell Handharyani, Ekowati; Ochiai, K; Winarto, A
Indonesian Journal of Animal and Veterinary Sciences Vol 9, No 4 (2004)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14334/jitv.v9i4.435

Abstract

The Ito cell (fat-storing cell) is a cell lying in perisinusoidal space of liver. The function of Ito cell is expanding from a site of fat-storing site to a center of extracellular matrix metabolism and mediator production in the liver. This study was performed in order to evaluate the Ito cells in cholestatic condition. The artificial cholestatic was conducted by ligation of extrahepatic bile ducts (bile duct ligation = BDL) in broilers. The results showed that BDL induced bile congestion, fibrosis, proliferation of Ito cells and intrahepatic bile ductules. Immunohistochemistry demonstrated that Ito cells were scattered throughout the fibrotic areas, and larger in size with more extensive immunoreactivity than those in normal livers. Ultrastructural study demonstrated that Ito cells were closely associated with the production of extracellular collagen fibers. Ito cells actively react against hepatocytic injuries, especially in fibrogenesis of cholestatic livers.   Key words: Bile duct, ito cell, broiler
Spontaneous cholangiohepatitis in broiler chickens: immunohistochemical study of Ito cells Handharyani, E; Ochiai, K; Winarsih, W; Harlina, E; Estuninngsih, Salfina Nurdin
Indonesian Journal of Animal and Veterinary Sciences Vol 6, No 4 (2001)
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (169.803 KB) | DOI: 10.14334/jitv.v6i4.245

Abstract

The function of Ito cells is expanding from a fat-storing site to a center of extracellular matrix metabolism and mediator production in the liver. Immunohistochemical reactivities of Ito cells were examined in eight livers of broiler chickens affected with spontaneous cholangiohepatitis and six chicken livers with malformation of extrahepatic biliary tracts. The livers in both groups revealed severe diffuse fibrosis. Ito cells expressing HHF35 muscle actin and desmin actively proliferated in the fibrotic foci of the all livers. The immunoreactivities of Ito cells to antibodies were enhanced compared with those in normal livers. There were no immunohistochemical differences between the Ito cells of two groups. From these findings, it was suggested that Ito cells actively proliferate and show enhanced immunoreactivities in the livers affected with cholangiohepatitis andmalformation of extrahepatic biliary tracts.   Key words : Cholangiohepatitis, immunohistochemistry, ito cell, broiler chicken
Spontaneous cholangiohepatitis in broiler chickens: immunohistochemical study of Ito cells Handharyani, E; Ochiai, K; Winarsih, W; Harlina, E; Estuninngsih, Salfina Nurdin
Jurnal Ilmu Ternak dan Veteriner Vol 6, No 4 (2001): DECEMBER 2001
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (169.803 KB) | DOI: 10.14334/jitv.v6i4.245

Abstract

The function of Ito cells is expanding from a fat-storing site to a center of extracellular matrix metabolism and mediator production in the liver. Immunohistochemical reactivities of Ito cells were examined in eight livers of broiler chickens affected with spontaneous cholangiohepatitis and six chicken livers with malformation of extrahepatic biliary tracts. The livers in both groups revealed severe diffuse fibrosis. Ito cells expressing HHF35 muscle actin and desmin actively proliferated in the fibrotic foci of the all livers. The immunoreactivities of Ito cells to antibodies were enhanced compared with those in normal livers. There were no immunohistochemical differences between the Ito cells of two groups. From these findings, it was suggested that Ito cells actively proliferate and show enhanced immunoreactivities in the livers affected with cholangiohepatitis andmalformation of extrahepatic biliary tracts.   Key words : Cholangiohepatitis, immunohistochemistry, ito cell, broiler chicken
Extrahepatic bile duct ligation in broiler chickens: ultrastructural study of Ito cell Handharyani, Ekowati; Ochiai, K; Winarto, A
Jurnal Ilmu Ternak dan Veteriner Vol 9, No 4 (2004): DECEMBER 2004
Publisher : Indonesian Animal Sciences Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1912.657 KB) | DOI: 10.14334/jitv.v9i4.435

Abstract

The Ito cell (fat-storing cell) is a cell lying in perisinusoidal space of liver. The function of Ito cell is expanding from a site of fat-storing site to a center of extracellular matrix metabolism and mediator production in the liver. This study was performed in order to evaluate the Ito cells in cholestatic condition. The artificial cholestatic was conducted by ligation of extrahepatic bile ducts (bile duct ligation = BDL) in broilers. The results showed that BDL induced bile congestion, fibrosis, proliferation of Ito cells and intrahepatic bile ductules. Immunohistochemistry demonstrated that Ito cells were scattered throughout the fibrotic areas, and larger in size with more extensive immunoreactivity than those in normal livers. Ultrastructural study demonstrated that Ito cells were closely associated with the production of extracellular collagen fibers. Ito cells actively react against hepatocytic injuries, especially in fibrogenesis of cholestatic livers.   Key words: Bile duct, ito cell, broiler