Macroscopic cerebral energy efficiency corresponds to neuron reorganization in awake and anesthetized mice.

Authors

Da Wang, Hui Li, Jinggui Gao, Yifan Zeng, Mengyang Xu, Binshi Bo, Mengchao Pei, Zhifeng Liang, Ning Zhou, Garth J Thompson

Published in

Frontiers in neuroscience. Volume 20. Pages 1949911. Epub Oct 09, 2026.

Abstract

Non-invasive imaging of brain function and energy supply is crucial for diagnosing and treating brain disorders. Conventional imaging struggles to capture altered relationships between energy supply and demand caused by brain diseases. A novel method, thus far only tested non-invasively in human subjects, is to calculate relative power (rPWR) and relative cost (rCST) to assess cerebral energy efficiency. However, whether rPWR/rCST tracks individual changes and relate to neural activity remains unproven.
Our study examines awake and anesthetized male mice and compares rPWR/rCST with invasive two-photon microscopy.
We found that rPWR/rCST distributions were similar between awake mice and humans, but changed in anesthetized mice, indicating a shift in the brain's economic balance. Furthermore, changes in rPWR/rCST were linked to the reorganization of microscopic neural networks, observed with two-photon microscopy.
Our work highlights the potential of rPWR/rCST for medical applications, and that neural network reorganization is linked to the brain's economic balance.

PMID:
42920513
Bibliographic data and abstract were imported from PubMed on 24 Oct 2026.

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