GEO accession GSE237321 is currently private and is scheduled to be released on Jul 03, 2029.
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA994570 | ENA |
REPOSITORIES: ENA
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Project description:Mesial temporal lobe epilepsy (MTLE) with hippocampal sclerosis accounts for the majority of refractory epilepsies in adults. Recently, astrocytes have attracted attention as a novel target for anti-seizure medications. We purified hippocampal astrocyte RNA from intrahippocampal kainic acid-injected MTLE model mice using RiboTag AAV and investigated the gene expression profiles of astrocytes in the epileptic hippocampus. By comparing the astrocytic RNA sequence data with whole hippocampal RNA, we identified gene expression profiles that are specific to epileptic hippocampal astrocytes.
2025-12-04 | GSE237321 | GEO
Project description:Ion channel splice array data collected from temporal neocortex brain tissue collected from patients with mesial temporal lobe epilepsy. Temporal cortex samples from control subjects were compared to temporal neocortex of patients with mesial temporal lobe epilepsy
2010-06-11 | E-GEOD-6773 | biostudies-arrayexpress
Project description:Hippocampal sclerosis (HS) is the most common neuropathological finding of medically intractable cases of mesial temporal lobe epilepsy (MTLE), the most common form of partial epilepsy. Within the dentate gyrus, HS may be associated with granule cell dispersion and aberrant mossy fiber sprouting, and these pathological changes are accompanied by a range of molecular changes. In this study, we analyzed the gene expression profiles of dentate granule cells of MTLE patients with and without HS to show that next-generation sequencing methods can produce interpretable genomic data from RNA collected from small homogenous cell populations and to shed light on the transcriptional changes associated with HS. 12 samples of dentate granule cells from patients with mesial tempora lobe epilepsy, 5 with hippocampal sclerosis and 7 without hippocampal sclerosis. 10 samples had replicates.
2016-06-29 | E-GEOD-71058 | biostudies-arrayexpress
Project description:Ion channel splice array data from temporal cortex brain tissue samples collected from control subjects (no mesial temporal lobe epilepsy). Keywords: disease associated splicing changes Temporal cortex samples from control subjects were compared to temporal neocortex of patients with mesial temporal lobe epilepsy
2007-01-23 | E-GEOD-6771 | biostudies-arrayexpress
Project description:The epilepsies represent one of the most common neurological disorders. Mesial temporal lobe epilepsies (MTLE) are the most frequent form of partial epilepsies and display frequent resistance to anti-epileptic drugs thus representing a major health care problem. In TLE, the origin of seizure activity typically involves the hippocampal formation, which displays major neuropathological features, described with the term hippocampal sclerosis (HS). HS is the most frequent pathological substrate of refractory mesial temporal lobe epilepsy. Complex partial seizures (CPS) are the predominant seizure type associated with medial temporal lobe epilepsy. MTLE is commonly due to mesial temporal sclerosis (MTS). The biology underlying the epilepstic seizures and the transcriptome associated to the seizure in intractable medial temporal lobe epilepsy is ill understood. The aim of the study was to identify potential biomarkers that could identify epileptic seizure. Thus we performed transcriptome profiling of ten medial temporal lobe epilepsy cases which are resistant to the drug and underwent temporal lobectomy. The cases constitutes of patients with intractable complex partial seizure, treated medically and have undergone detailed presurgical evaluation and subjected to surgery for standard temporal lobectomy and amygdalo-hippocampectomy. The spiking areas identified after the electrocorticography will form the test tissues, which compared with the nonspiking areas removed during the surgery, from the same patient. This could probably form one of the appropriate controls, as test and control are from same patient, which eliminates the genome variations that could incur due to the comparison with the tissues from the another patient. Also this could get rid of expression changes due to the treatments undergone by the patient. We performed two color microarray wherein we labled seizure focus (spiking area) with Cy5 and non-seizure region tissues (non-spiking) with Cy3. As a strategy to test the possibility of potential diagnostic biomarkers we are intended to test the differentially regulated molecules in an independent set of epilepsy samples. Two color experiment
2012-12-01 | E-GEOD-25453 | biostudies-arrayexpress
Project description:Ion channel splice array data collected from temporal neocortex brain tissue collected from patients with mesial temporal lobe epilepsy. Keywords: disease associated splicing changes
2007-01-23 | GSE6773 | GEO
Project description:The epilepsies represent one of the most common neurological disorders. Mesial temporal lobe epilepsies (MTLE) are the most frequent form of partial epilepsies and display frequent resistance to anti-epileptic drugs thus representing a major health care problem. In TLE, the origin of seizure activity typically involves the hippocampal formation, which displays major neuropathological features, described with the term hippocampal sclerosis (HS). HS is the most frequent pathological substrate of refractory mesial temporal lobe epilepsy. Complex partial seizures (CPS) are the predominant seizure type associated with medial temporal lobe epilepsy. MTLE is commonly due to mesial temporal sclerosis (MTS). The biology underlying the epilepstic seizures and the transcriptome associated to the seizure in intractable medial temporal lobe epilepsy is ill understood. The aim of the study was to identify potential biomarkers that could identify epileptic seizure. Thus we performed transcriptome profiling of ten medial temporal lobe epilepsy cases which are resistant to the drug and underwent temporal lobectomy. The cases constitutes of patients with intractable complex partial seizure, treated medically and have undergone detailed presurgical evaluation and subjected to surgery for standard temporal lobectomy and amygdalo-hippocampectomy. The spiking areas identified after the electrocorticography will form the test tissues, which compared with the nonspiking areas removed during the surgery, from the same patient. This could probably form one of the appropriate controls, as test and control are from same patient, which eliminates the genome variations that could incur due to the comparison with the tissues from the another patient. Also this could get rid of expression changes due to the treatments undergone by the patient. We performed two color microarray wherein we labled seizure focus (spiking area) with Cy5 and non-seizure region tissues (non-spiking) with Cy3. As a strategy to test the possibility of potential diagnostic biomarkers we are intended to test the differentially regulated molecules in an independent set of epilepsy samples.
2012-12-01 | GSE25453 | GEO
Project description:Ion channel splice array data from temporal cortex brain tissue samples collected from control subjects (no mesial temporal lobe epilepsy). Keywords: disease associated splicing changes
2007-01-23 | GSE6771 | GEO
Project description:Mesial temporal lobe epilepsy (mTLE) is a chronic neurological disease characterized by recurrent seizures. The pathogenic mechanisms underlying TLE involve defects in post-transcriptional regulation of gene expression. Previously we have shown the differences in cell compartment specific differential expression of coding transcripts in mTLE hippocampal and cortical samples compared to post-mortem controls (Vangoor et al., MedRxiv. 2021). On the same set of patient samples containing subcellular RNA from resected hippocampal (HC) and neo-cortical (Cx) tissue from mTLE no hippocampal sclerosis (non-HS) and mTLE HS International League Against Epilepsy (ILAE) Type 1 or mTLE+HS patients and postmortem control tissue, we applied small RNA sequencing (smRNA-seq). SmRNA-seq was analyzed for investigating the expression profiles of small non-coding RNA species as microRNAs and transferRNA fragments in human mTLE and control hippocampal tissue.
2024-11-06 | GSE245228 | GEO
Project description:Comparative analysis of gene expression differences (DEGs) between the amygdalohippocampal complex (most often the region of seizure onset in mesial temporal lobe epilepsy (mTLE)) and neocortex from mTLE patients who undergo epilepsy surgery can be used to illuminate pathophysiological events involved in epileptogenises. Transcriptome analysis was performed on freshly resected amygdalohippocampal and temporal lobe cortex tissue obtained after surgery of 17 patients with drug-resistant temporal lobe epilepsy from Copenhagen University Hospital.
2019-07-24 | GSE134697 | GEO