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Titolo:
NEW ASPECTS IN A MURINE MODEL FOR EXTRAHEPATIC BILIARY ATRESIA
Autore:
PETERSEN C; BIERMANNS D; KUSKE M; SCHAKEL K; MEYERJUNGHANEL L; MILDENBERGER H;
Indirizzi:
HANNOVER MED SCH,ABT KINDERCHIRURG,CARL NEUBERG STR 1 D-30625 HANNOVER GERMANY
Titolo Testata:
Journal of pediatric surgery
fascicolo: 8, volume: 32, anno: 1997,
pagine: 1190 - 1195
SICI:
0022-3468(1997)32:8<1190:NAIAMM>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
NEONATAL CHOLESTASIS; ROTAVIRUS INFECTION; MICE; PATHOGENESIS; CHOLANGITIS; DISEASE; NEWBORN;
Keywords:
BILIARY ATRESIA; ANIMAL MODEL; ROTAVIRUS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
21
Recensione:
Indirizzi per estratti:
Citazione:
C. Petersen et al., "NEW ASPECTS IN A MURINE MODEL FOR EXTRAHEPATIC BILIARY ATRESIA", Journal of pediatric surgery, 32(8), 1997, pp. 1190-1195

Abstract

The cause of extrahepatic biliary atresia (EHBA) remains unknown, andeven an animal model is still lacking. Observations in a murine infectious model (newborn Balb/c mice infected with rhesus rotavirus group A [RRV]) reported extrahepatic biliary obstruction similar to findingsin children who have EHBA. In the present study, this animal experiment was repeated, and the clinical and histomorphologic changes were observed over 3 weeks. Eighty-nine newborn mice were infected with RRV, and 67% showed signs of cholestasis and delayed growth. Eight of theseanimals recovered spontaneously whereas the others remained icteric. Fourty-six pups were prepared for microscopic examination following a 2-day interval. From the fifth day, the whole biliary tract showed edematous swelling with cellular infiltration. Ten days later, in the extrahepatic bile duct, a transformation took place in which concentric infiltration led to complete obstruction, sometimes with prestenotic dilatation. The intrahepatic changes showed reactive necrosis and proliferation of the small bile ducts. In one 19-day-old mouse, a ballooningdilatation was observed, similar to a developing choledochal cyst. Infection with RRV induces in newborn Balb/c mice a cholestatic clinicalpicture with different courses of the disease leading mostly to complete biliary obstruction and secondary hepatic changes similar to EHBA in children. This is the first animal model for EHBA with complete obstruction of the extrahepatic bile duct induced by infection. These findings present a new basis for further studies. Copyright (C) 1997 by W. B. Saunders Company.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 14:18:49