Impact of aging on peribiliary glands in ischemia-reperfusion injury.
J Hepatobiliary Pancreat Sci
; 2024 Jul 16.
Article
em En
| MEDLINE
| ID: mdl-39011821
ABSTRACT
BACKGROUND:
The detailed mechanisms underlying the development of ischemia-type biliary lesions (ITBLs) in aged donor grafts remain unclear. In the present study we aimed to investigate the impact of aging on the response of the peribiliary gland (PBG) to ischemia-reperfusion injury (IRI) and its temporal changes.METHODS:
Experiments were performed using a 90-min partial warm liver ischemia model in male Wistar rats of two age groups young (7-8 weeks old) and old (52-60 weeks old). Liver tissues were obtained 24, 72, and 168 h after IRI. Histopathological and immunohistochemical assessments of the perihilar bile duct (PHBD), including the PBG, distal to the clip-clamped site were performed.RESULTS:
Young rats showed little change in the bile duct tissues after IRI. However, old rats showed an increased PBG volume in the PHBD and marked PBG cell proliferation 24 h after IRI. Bile duct wall thickening with narrowing of the lumen peaked 72 h after IRI. Mucus production and oxidative stress in the PBG were significantly higher in old than in young rats after IRI. These findings showed a trend toward improvement 168 h after IRI.CONCLUSION:
Age-dependent differences in the response of the PBG to IRI may be related to differences in ITBL frequency.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
J Hepatobiliary Pancreat Sci
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Japão