Biphasic Functional Regulation in Hippocampus of Rat with Chronic Cerebral Hypoperfusion Induced by Permanent Occlusion of Bilateral Common Carotid Artery

Overview

Journal PLoS One

Specialties General Medicine
Science

Date 2013 Aug 13

PMID 23936146

Citations 22

Authors

Jihye Bang

Won Kyung Jeon

In Sun Lee

Jung-Soo Han

Bu-Yeo Kim

Affiliations

Soon will be listed here.

Abstract

Background: Chronic cerebral hypoperfusion induced by permanent occlusion of the bilateral common carotid artery (BCCAO) in rats has been commonly used for the study of Alzheimer's disease and vascular dementia. Despite the apparent cognitive dysfunction in rats with BCCAO, the molecular markers or pathways involved in the pathological alternation have not been clearly identified.

Methods: Temporal changes (sham, 21, 35, 45, 55 and 70 days) in gene expression in the hippocampus of rats after BCCAO were measured using time-course microarray analysis. Gene Ontology (GO) and pathway analyses were performed to identify the functional involvement of temporally regulated genes in BCCAO.

Results: Two major gene expression patterns were observed in the hippocampus of rats after BCCAO. One pattern, which was composed of 341 early up-regulated genes after the surgical procedure, was dominantly involved in immune-related biological functions (false discovery rate [FDR]<0.01). Another pattern composed of 182 temporally delayed down-regulated genes was involved in sensory perception such as olfactory and cognition functions (FDR<0.01). In addition to the two gene expression patterns, the temporal change of GO and the pathway activities using all differentially expressed genes also confirmed that an immune response was the main early change, whereas sensory functions were delayed responses. Moreover, we identified FADD and SOCS3 as possible core genes in the sensory function loss process using text-based mining and interaction network analysis.

Conclusions: The biphasic regulatory mechanism first reported here could provide molecular evidence of BCCAO-induced impaired memory in rats as well as mechanism of the development of vascular dementia.

Citing Articles

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PMID: 37987796 DOI: 10.1007/s00210-023-02783-0.

Differential Expression of Pax6 Following Bilateral Common Carotid Artery Occlusion.

Kim D, Lee M, Cho H, Jo G, Hwang H, Shin H In Vivo. 2023; 37(2):655-660.

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Wu F, Li Y, Liu W, Xiao R, Yao B, Gao M Metabolites. 2022; 12(12).

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Xu J, Guo S, Xue R, Xiao L, Kou J, Liu Y Aging (Albany NY). 2021; 13(10):14001-14014.

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Kim H, Hong J, Jeon J Front Neurol. 2020; 11:927.

PMID: 32982937 PMC: 7477392. DOI: 10.3389/fneur.2020.00927.

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