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Brain Sci. 2018, 8(2), 30; doi:10.3390/brainsci8020030

Possible Role of Inflammation and Galectin-3 in Brain Injury after Subarachnoid Hemorrhage

Department of Neurosurgery, Mie University Graduate School of Medicine, Tsu 514-8507, Japan
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Received: 22 January 2018 / Revised: 5 February 2018 / Accepted: 5 February 2018 / Published: 7 February 2018
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Abstract

Aneurysmal subarachnoid hemorrhage (SAH) is known as one of the most devastating diseases in the central nervous system. In the past few decades, research on SAH has focused on cerebral vasospasm to prevent post-SAH delayed cerebral ischemia (DCI) and to improve outcomes. However, increasing evidence has suggested that early brain injury (EBI) is an important mechanism contributing to DCI, cerebral vasospasm as well as poor outcomes. Though the mechanism of EBI is very complex, inflammation is thought to play a pivotal role in EBI. Galectin-3 is a unique chimera type in the galectin family characterized by its β-galactoside-binding lectin, which mediates various pathologies, such as fibrosis, cell adhesion, and inflammation. Recently, two clinical studies revealed galectin-3 to be a possible prognostic biomarker in SAH patients. In addition, our recent report suggested that higher acute-stage plasma galectin-3 levels correlated with subsequent development of delayed cerebral infarction that was not associated with vasospasm in SAH patients. We review the possible role and molecular mechanisms of inflammation as well as galectin-3 in brain injuries, especially focusing on EBI after SAH, and discuss galectin-3 as a potential new therapeutic or research target in post-SAH brain injuries. View Full-Text
Keywords: galectin-3; early brain injury; inflammation; subarachnoid hemorrhage galectin-3; early brain injury; inflammation; subarachnoid hemorrhage
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Nishikawa, H.; Suzuki, H. Possible Role of Inflammation and Galectin-3 in Brain Injury after Subarachnoid Hemorrhage. Brain Sci. 2018, 8, 30.

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