Monday, December 1, 2025

Delayed Postconditioning Protects against Focal Ischemic Brain Injury in Rats

Authors: Chuancheng Ren, Xuwen Gao, Gang Niu, Zhimin Yan, Xiaoyuan Chen, Heng Zhao

DOI: 10.1371/journal.pone.0003851

Abstract Summary

Researchers discovered that “delayed postconditioning”—brief, repetitive blood flow interruptions performed 3-6 hours after stroke—significantly reduces brain damage in rats. This technique improved long-term outcomes for up to two months and even counteracted harmful side effects of tPA clot-busting therapy. Unlike immediate postconditioning with impractically narrow treatment windows, this delayed approach offers a more clinically feasible neuroprotective strategy.

Why Brain? 🧠

Delayed ischemic postconditioning performed hours after stroke significantly reduces brain damage in rats, offering a wider therapeutic window than rapid postconditioning and potentially counteracting tPA side effects.


The image is AI-generated for illustrative purposes only. Courtesy of Midjourney.

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