Can microglial iron-driven ferroptosis be the key to post-hemorrhage neuroinflammation?

 Your competent doctor has been working on solving microbleeds  for over two decades, right? And ferroptosis for well over a decade? NO? So, INCOMPETENT THEN? 

• cerebral microbleeds (8 posts to August 2017) And references to a 2005 one!
• Ferroptosis (12 posts to July 2012)

Can microglial iron-driven ferroptosis be the key to post-hemorrhage neuroinflammation?

After a cerebral hemorrhage (CH), heme oxygenase-1 (HO-1) catalyzes the conversion of heme to release Fe²⁺. Microglia are the primary cells responsible for immune function in the brain. Upon the uptake of heme and iron ions, microglia are activated, leading to the subsequent release of inflammatory mediators and reactive oxygen species. Neuroinflammation and oxidative stress are common features of various brain diseases. Cerebral hemorrhage can trigger microglial iron accumulation and ferroptosis, which in turn leads to neuroinflammation and oxidative stress imbalance in the brain. Therefore, inhibiting microglial iron accumulation and ferroptosis alleviates cerebral hemorrhage-mediated neural damage and counteracts various brain diseases induced by it. We propose that the occurrence of many brain diseases is influenced by the location of cerebral microbleeds, suggesting that cerebral microbleeds may be a high-risk factor for inducing these diseases.

REFERENCES

1. Neuroinflammatory diseases triggered by cerebral hemorrhage: microglial iron accumulation and ferroptosis.

   Gao X, Li H, Liang J, Liu S.

   Eur J Pharmacol. 2026 May 14; 1026 178972 [Epub ahead of print]