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Depression: 21st Century Solutions + The Dark Side of Wheat

Abstract Title:

Sulforaphane enhances aquaporin-4 expression and decreases cerebral edema following traumatic brain injury.

Abstract Source:

J Neurosci Res. 2005 Nov 15;82(4):499-506. PMID: 16211562

Abstract Author(s):

Jing Zhao, Anthony N Moore, Guy L Clifton, Pramod K Dash

Article Affiliation:

The Vivian L. Smith Center for Neurologic Research and Department of Neurobiology and Anatomy, The University of Texas Medical School, Houston, 77225, USA.

Abstract:

Brain edema, the infiltration and accumulation of excess fluid causing an increase in brain tissue volume, often leads to a rise in intracranial pressure and is a key contributor to the morbidity and mortality associated with traumatic brain injury (TBI). The cellular and molecular mechanisms contributing to the development/resolution of TBI-associated brain edema are poorly understood. Aquaporin-4 (AQP4) water channel is expressed at high levels in brain astrocytes, and the bidirectional transport of water through these channels is critical for the maintenance of brain water homeostasis. By using a rodent injury model, we show that TBI decreased AQP4 level in the injury core and modestly increased it in the penumbra region surrounding the core. Postinjury administration of sulforaphane (SUL), an isothiocyanate present in abundance in cruciferous vegetables such as broccoli, attenuated AQP4 loss in the injury core and further increased AQP4 levels in the penumbra region compared with injured animals receiving vehicle. These increases in AQP4 levels were accompanied by a significant reduction in brain edema (assessed by percentage water content) at 3 days postinjury. These findings suggest that the reduction of brain edema in response to SUL administration could be due, in part, to water clearance by AQP4 from the injured brain.

Study Type : Animal Study

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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