GEO DataSets

(Submitter supplied) MicroRNAs (miRNAs) are small (20-22 nucleotides) regulatory non-coding RNAs that strongly influence gene expression. Most prior studies addressing the role of miRNAs in neurodegenerative diseases (NDs) have focused on individual controls (n = 2), AD (n = 5), dementia with Lewy bodies (n = 4), hippocampal sclerosis of aging (n = 4), and frontotemporal lobar dementia (FTLD) (n = 5) cases, together accounting for the most prevalent ND subtypes. more...

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL10999

20 Samples

Download data: XLS

(Submitter supplied) We carried out Next Generation Sequencing (NGS) to reveal miRNA expression profiles of 16 patients with mTLE+HS and 8 post mortem controls (with median coverage of 10.8 million of unprocessed reads per sample). The sequencing platform identified 1962 miRNA species, out of which 422 miRNAs were present with the coverage of more than 500 reads altogether in all samples. We discovered 9 miRNAs potentially related to mTLE+HS that have not yet been associated with epilepsy.

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL18573

24 Samples

Download data: TXT

(Submitter supplied) Alzheimer's disease (AD) is a devastating neurodegenerative disorder that threatens to reach epidemic proportions as our population ages. Although much research has examined molecular pathways associated with AD, relatively few studies have focused on critical early stages. Our prior microarray study correlated gene expression in human hippocampus with AD markers. Results suggested a new model of early-stage AD in which pathology spreads along myelinated axons, orchestrated by upregulated transcription and epigenetic factors related to growth and tumor suppression (Blalock et al., 2004). more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS4136

Platform:

GPL570

30 Samples

Download data: CEL

Analysis of laser-captured hippocampal CA1 gray matter from FFPE hippocampal sections of subjects at varying stages (incipient, moderate, severe) of Alzheimer’s disease (AD). Results provide insight into gray matter-specific molecular mechanisms underlying AD.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 19 age, 4 disease state sets

Platform:

GPL570

Series:

GSE28146

30 Samples

Download data: CEL

(Submitter supplied) We applied Next-Generation Sequencing (NGS) to miRNAs from blood samples of 48 AD (Alzheimer's Disease) patients and 22 unaffected controls, yielding a total of 140 unique mature miRNAs with significantly changed expression level. Of these, 82 were higher and 58 lower abundant in samples from AD patients. We selected a panel of 12 miRNAs for a qRT-PCR analysis on a larger cohort of 202 samples including not only AD patients and healthy controls but also patients with other CNS illnesses: Multiple Sclerosis, Parkinson's Disease, Major Depression, Bipolar Disorder, Schizophrenia, and Mild Cognitive Impairment, which is assumed to represent a transitional period before the development of AD. more...

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL11154

70 Samples

Download data: XLS

(Submitter supplied) Human post-mortem brain samples from Alzheimer’s disease (AD) and control individuals were processed for small RNA-sequencing followed by comparative analyses

Organism:

Homo sapiens

Type:

Non-coding RNA profiling by high throughput sequencing

Platform:

GPL11154

10 Samples

Download data: TXT