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Insulin resistance alters cortical inhibitory neurons and microglia to exacerbate Alzheimer’s knock-in mouse phenotypes

GSE262426 Mus musculus (mouse) RNA-seq (gene expression) 16 samples Submitted 2025/11/01 Platform GPL24247
At a glance

RNA-seq (gene expression) · mouse · 16 samples

What it is
RNA-seq (gene expression)Gene activity measured by sequencing. The summary does not mention single-cell work, so this is most likely bulk: one average per sample, the usual starting point for comparing groups.
Organism
Mus musculus (mouse)
Samples
16 samples: 13 distinct titles, 2 of them repeatedGroups are read from the sample names, not from the paper. Check the list below.
Data you can get
A processed table (series matrix) and supplementary files from NCBI; the raw sequencing reads from ENA. Which of these hold counts depends on the study, so check the file list.
Paper
Insulin resistance alters cortical inhibitory neurons and microglia to exacerbate Alzheimer's knock-in mouse phenotypesbioRxiv : the preprint server for biology · 2025
Summary (written by the submitters)
Clinically, patients with diabetes have a higher risk of suffering from Alzheimer's disease (AD), with increased severity of cognitive decline upon disease onset. Several studies have reported on the metabolic impact of chronic hyperglycemia using various mouse models of AD, with varying results and behavioral outcomes. Furthermore, the underlying cellular mechanisms driving any observable increases in cognitive impairments remain unclear.
Read the full summary ↓
In this study, we induced either Type-1 (streptozotocin, STZ) or Type-2 (chronic high-fat diet, HFD) diabetes on either wild type or a double knock-in AD mouse model. We found that there was no observable difference in behavioral defect between AD and AD mice with STZ-induced diabetes. However, AD mice on a chronic high-fat diet displayed increased impairments in memory and learning. Histological and transcriptomic analysis of these mice revealed an increase in glial-mediated synapse due to an altered metabolic state of microglia.
Published in
Insulin resistance alters cortical inhibitory neurons and microglia to exacerbate Alzheimer's knock-in mouse phenotypes
Nicholson L, Tang SJ, Karra T et al. · bioRxiv : the preprint server for biology 2025 · PMID 40964391 · doi:10.1101/2025.09.05.674487
This dataset
Download · which file do I need?

Direct links to NCBI and ENA, no account and no request form. Pick by what you want to do: take the small processed table to look, the supplementary files to re-analyse, or the original raw data to start over.

1 · Just have a look

Processed table

The series matrix: one table of values per sample as the submitters processed it. The smallest download, and it opens in Excel or R. Start here to see what the data look like.

2 · Re-analyse it

Supplementary files

The count tables and other files the authors uploaded. Take only the samples you need, or the whole study as GSE262426_RAW.tar (it can run to tens of gigabytes).

3 · Start from the raw reads

Raw sequencing reads

The original FASTQ files, straight from the sequencer, held at ENA. Large, and you align them yourself, so only choose this if you need to re-process the study from scratch.

What the files usually look like: For RNA-seq the counts are usually a table among the supplementary files (look for 'counts', 'expression', 'FPKM' or 'TPM' in the file name). The series matrix of a sequencing study is sometimes nearly empty.

Also filed as BioProject PRJNA1091697 and SRA study SRP497740. Searching any of these in the dataset finder brings you back here.

Study design
13 distinct titles, 2 of them repeated
WTCtrD ×3 dCtrD ×2

How we read this: Read from 16 sample titles: 13 distinct titles with little repetition. These groups are guessed from the sample names, not taken from the paper, so check them against the sample list below before relying on them.

Samples in this study
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