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Histological Characterization of the Irritative Zones in Focal Cortical Dysplasia Using a Preclinical Rat Model

Overview of attention for article published in Frontiers in Cellular Neuroscience, May 2018
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Title
Histological Characterization of the Irritative Zones in Focal Cortical Dysplasia Using a Preclinical Rat Model
Published in
Frontiers in Cellular Neuroscience, May 2018
DOI 10.3389/fncel.2018.00052
Pubmed ID
Authors

Abhay Deshmukh, Jared Leichner, Jihye Bae, Yinchen Song, Pedro A. Valdés-Hernández, Wei-Chiang Lin, Jorge J. Riera

Abstract

Current clinical practice in focal epilepsy involves brain source imaging (BSI) to localize brain areas where from interictal epileptiform discharges (IEDs) emerge. These areas, named irritative zones, have been useful to define candidate seizures-onset zones during pre-surgical workup. Since human histological data are mostly available from final resected zones, systematic studies characterizing pathophysiological mechanisms and abnormal molecular/cellular substrates in irritative zones-independent of them being epileptogenic-are challenging. Combining BSI and histological analysis from all types of irritative zones is only possible through the use of preclinical animal models. Here, we recorded 32-channel spontaneous electroencephalographic data from rats that have focal cortical dysplasia (FCD) and chronic seizures. BSI for different IED subtypes was performed using the methodology presented in Bae et al. (2015). Post-mortem brain sections containing irritative zones were stained to quantify anatomical, functional, and inflammatory biomarkers specific for epileptogenesis, and the results were compared with those obtained using the contralateral healthy brain tissue. We found abnormal anatomical structures in all irritative zones (i.e., larger neuronal processes, glioreactivity, and vascular cuffing) and larger expressions for neurotransmission (i.e., NR2B) and inflammation (i.e., ILβ1, TNFα and HMGB1). We conclude that irritative zones in this rat preclinical model of FCD comprise abnormal tissues disregarding whether they are actually involved in icto-genesis or not. We hypothesize that seizure perpetuation happens gradually; hence, our results could support the use of IED-based BSI for the early diagnosis and preventive treatment of potential epileptic foci. Further verifications in humans are yet needed.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 46 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 46 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 8 17%
Student > Bachelor 6 13%
Student > Master 4 9%
Researcher 4 9%
Student > Doctoral Student 3 7%
Other 9 20%
Unknown 12 26%
Readers by discipline Count As %
Medicine and Dentistry 10 22%
Neuroscience 9 20%
Computer Science 3 7%
Engineering 3 7%
Immunology and Microbiology 1 2%
Other 5 11%
Unknown 15 33%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. 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 May 2018.
All research outputs
#16,139,483
of 23,942,830 outputs
Outputs from Frontiers in Cellular Neuroscience
#2,810
of 4,427 outputs
Outputs of similar age
#213,125
of 332,377 outputs
Outputs of similar age from Frontiers in Cellular Neuroscience
#57
of 89 outputs
Altmetric has tracked 23,942,830 research outputs across all sources so far. This one is in the 22nd percentile – i.e., 22% of other outputs scored the same or lower than it.
So far Altmetric has tracked 4,427 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.5. This one is in the 30th percentile – i.e., 30% of its peers scored the same or lower than it.
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We're also able to compare this research output to 89 others from the same source and published within six weeks on either side of this one. This one is in the 33rd percentile – i.e., 33% of its contemporaries scored the same or lower than it.