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Hippocampal subregion-specific microRNA expression during epileptogenesis in experimental temporal lobe epilepsy

Overview of attention for article published in Neurobiology of Disease, October 2013
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Title
Hippocampal subregion-specific microRNA expression during epileptogenesis in experimental temporal lobe epilepsy
Published in
Neurobiology of Disease, October 2013
DOI 10.1016/j.nbd.2013.10.026
Pubmed ID
Authors

Jan A. Gorter, Anand Iyer, Ian White, Anna Colzi, Erwin A. van Vliet, Sanjay Sisodiya, Eleonora Aronica

Abstract

Since aberrant miRNA expression has been implicated in numerous brain diseases, we studied miRNA expression and miRNA regulation of important signaling pathways during temporal lobe epileptogenesis in order to identify possible targets for epilepsy therapy. The temporal profile of miRNA expression was analyzed in three brain regions (CA1; dentate gyrus, DG; parahippocampal cortex, PHC) associated with epileptogenesis in a rat model for temporal lobe epilepsy. Tissue was obtained after electrically-induced status epilepticus (SE) at 1day (n=5), 1week (n=5) and 3-4months (n=5), and compared with control tissue (n=10) using the Exiqon microRNA arrays which contain capture probes targeting all miRNAs for rat (p<0.01, and a 1.5 fold up- or downregulation). Expression of three blood plasma miRNAs from the same group of rats was also investigated in rats in order to determine whether plasma miRNAs could serve as potential biomarkers of the epileptogenic process. Molecular pathways potentially altered by the expression of multiple miRNAs were identified using a web-based algorithm, DIANA. In CA1 and DG, more upregulated than downregulated miRNAs were present during each stage after SE. The highest numbers of upregulated miRNAs were encountered during the chronic stage in the DG. In PHC, a high number of downregulated miRNAs were detected. Key pathways involved, based upon quantitatively altered miRNA expression were: axon guidance, MAPK signaling pathway, focal adhesion, TGFβ, ErbB-, Wnt- and mTOR signaling, and regulation of actin skeleton. Expression of plasma miRNAs was differentially regulated after induction of SE. This study identified several signaling pathways possibly involved in temporal lobe epileptogenesis, not previously indicated by RNA microarray studies. These include miRNAs that regulate the ErbB and Wnt pathways and focal adhesion, which may represent interesting new targets for therapeutic interventions.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 148 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Netherlands 2 1%
Ireland 1 <1%
Brazil 1 <1%
Czechia 1 <1%
United Kingdom 1 <1%
Mexico 1 <1%
United States 1 <1%
Unknown 140 95%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 29 20%
Researcher 26 18%
Student > Master 17 11%
Student > Bachelor 17 11%
Professor > Associate Professor 9 6%
Other 19 13%
Unknown 31 21%
Readers by discipline Count As %
Agricultural and Biological Sciences 37 25%
Medicine and Dentistry 28 19%
Neuroscience 24 16%
Biochemistry, Genetics and Molecular Biology 6 4%
Pharmacology, Toxicology and Pharmaceutical Science 5 3%
Other 11 7%
Unknown 37 25%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 25 November 2013.
All research outputs
#15,169,949
of 25,374,647 outputs
Outputs from Neurobiology of Disease
#2,445
of 3,389 outputs
Outputs of similar age
#121,838
of 225,925 outputs
Outputs of similar age from Neurobiology of Disease
#29
of 46 outputs
Altmetric has tracked 25,374,647 research outputs across all sources so far. This one is in the 38th percentile – i.e., 38% of other outputs scored the same or lower than it.
So far Altmetric has tracked 3,389 research outputs from this source. They typically receive more attention than average, with a mean Attention Score of 9.8. This one is in the 26th percentile – i.e., 26% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 225,925 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 44th percentile – i.e., 44% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 46 others from the same source and published within six weeks on either side of this one. This one is in the 36th percentile – i.e., 36% of its contemporaries scored the same or lower than it.