WORLD NEWS

A human prefrontal-cortex atlas maps 6.32 million nuclei from 1,494 donors

2026.09.25 Global briefing

Briefings by language

The cohort spans ages 0–108 and includes Alzheimer’s, Parkinson’s, schizophrenia, bipolar disorder and neurologically typical donors.

Gene-activity changes tied to neuronal development and synaptic function overlapped especially strongly across dementias and Parkinson’s disease.

Why single nuclei

Whole-tissue averages hide rare cells and cell-type differences. Single-nucleus RNA analysis separates which genes change in which cell populations.

6.32 million is not people

That is the number of nuclei after quality control; there were 1,494 unique donors. Calling it 6.32 million people would be wrong.

A human prefrontal-cortex atlas maps 6.32 million nuclei from 1,494 donors — This AI-generated image explains the topic; it is not a photograph of an actual event, observation or field site.

What it enables

Researchers can examine disease-specific and shared cell changes and ancestry-linked genetic risk. Association does not prove a treatment target works or establish cause.

Limits

Postmortem condition, diagnosis, medication and cause of death can affect results. Other regions, models, populations and functional tests are needed.