Neuroprotective Effects of Hydrogen Sulfide Against Early Brain Injury and Secondary Cognitive Deficits Following Subarachnoid Hemorrhage.

Brain Pathology
Tong LiZhen Wang

Abstract

Although the neuroprotective effects of hydrogen sulfide (H2 S) have been demonstrated in several studies, whether H2 S protects against early brain injury (EBI) and secondary cognitive dysfunction in subarachnoid hemorrhage (SAH) model remains unknown. This study was undertaken to evaluate the influence of H2 S on both acute brain injury and neurobehavioral changes as well as the underlying mechanisms after SAH. The H2 S donor, NaHS, was administered via an intraperitoneal injection at a dose of 5.6 mg/kg at 2 h, 6 h, 24 h, and 46 h after SAH in rat model. The results showed that NaHS treatment significantly improved brain edema and neurobehavioral function, and attenuated neuronal cell death in the prefrontal cortex, associated with a decrease in Bax/Bcl-2 ratio and suppression of caspase-3 activation at 48 h after SAH. NaHS also promoted phospho-Akt and phospho-ERK levels. Furthermore, NaHS treatment significantly enhanced the levels of brain-derived neurotrophic factor (BDNF) and phospho-CREB. Importantly, NaHS administration improved learning and memory performance in the Morris water maze test at 7 days post-SAH in rats. These results demonstrated that NaHS, as an exogenous H2 S donor, could significantly alleviate the de...Continue Reading

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Citations

Jul 15, 2016·Oxidative Medicine and Cellular Longevity·Sandesh PanthiNa Young Jeong
Aug 5, 2017·Journal of Neurosurgery·Philipp HendrixChristoph J Griessenauer
Feb 20, 2018·Translational Neurodegeneration·Sandesh PanthiKripa Gautam
Feb 24, 2020·Biochemical and Biophysical Research Communications·Pan ShangShihong Chen

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