Hosseini N, Alaei H, Zarrindast MR, Nasehi M, Radahmadi M. Cholestasis progression effects on long-term memory in bile duct ligation rats.
Adv Biomed Res 2014;
3:215. [PMID:
25371872 PMCID:
PMC4219212 DOI:
10.4103/2277-9175.143263]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2013] [Accepted: 11/02/2013] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND
There is evidence that cognitive functions are affected by some liver diseases such as cholestasis. Bile duct ligation induces cholestasis as a result of impaired liver function and cognition. This research investigates the effect of cholestasis progression on memory function in bile duct ligation rats.
MATERIALS AND METHODS
MALE WISTAR RATS WERE RANDOMLY DIVIDED INTO FIVE GROUPS, WHICH INCLUDE: control group for BDL-7, control group for BDL-21, sham group (underwent laparotomy without bile duct ligation), BDL-7 group (7 days after bile duct ligation), and BDL-21 group (21 days after bile duct ligation). Step-through passive avoidance test was employed to examine memory function. In all groups, short-term (7 days after foot shock) and long-term memories (21 days after foot shock) were assessed.
RESULTS
Our results showed that liver function significantly decreased with cholestasis progression (P < 0.01). Also our findings indicated BDL-21 significantly impaired acquisition time (P < 0.05). Memory retrieval impaired 7 (P < 0.05) and 21 days (P < 0.001) after foot shock in BDL-7 and BDL-21 groups, respectively.
CONCLUSION
Based on these findings, liver function altered in cholestasis and memory (short-term and long-term memory) impaired with cholestasis progression in bile duct ligation rats. Further studies are needed to better insight the nature of progression of brain damage in cholestatic disease.
Collapse