Volume 27, Issue 1 pp. 51-63
RESEARCH ARTICLE
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Neuroprotective Effects of Hydrogen Sulfide Against Early Brain Injury and Secondary Cognitive Deficits Following Subarachnoid Hemorrhage

Tong Li

Tong Li

Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, 107#, Wenhua Xi Road, Jinan, Shandong Province, 250012 P.R. China

Department of Physiology, Shandong University School of Medicine, 44#, Wenhua Xi Road, Jinan, Shandong, 250012 P.R. China

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Hansen Liu

Hansen Liu

Department of Physiology, Shandong University School of Medicine, 44#, Wenhua Xi Road, Jinan, Shandong, 250012 P.R. China

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Hao Xue

Hao Xue

Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, 107#, Wenhua Xi Road, Jinan, Shandong Province, 250012 P.R. China

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Jinsen Zhang

Jinsen Zhang

Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, 107#, Wenhua Xi Road, Jinan, Shandong Province, 250012 P.R. China

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Xiao Han

Xiao Han

Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, 107#, Wenhua Xi Road, Jinan, Shandong Province, 250012 P.R. China

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Shaofeng Yan

Shaofeng Yan

Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, 107#, Wenhua Xi Road, Jinan, Shandong Province, 250012 P.R. China

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Shishi Bo

Shishi Bo

Department of Physiology, Shandong University School of Medicine, 44#, Wenhua Xi Road, Jinan, Shandong, 250012 P.R. China

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Song Liu

Song Liu

Department of Physiology, Shandong University School of Medicine, 44#, Wenhua Xi Road, Jinan, Shandong, 250012 P.R. China

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Lin Yuan

Lin Yuan

Department of Physiology, Shandong University School of Medicine, 44#, Wenhua Xi Road, Jinan, Shandong, 250012 P.R. China

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Lin Deng

Lin Deng

Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, 107#, Wenhua Xi Road, Jinan, Shandong Province, 250012 P.R. China

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Gang Li

Corresponding Author

Gang Li

Department of Neurosurgery, Qilu Hospital of Shandong University and Brain Science Research Institute, Shandong University, 107#, Wenhua Xi Road, Jinan, Shandong Province, 250012 P.R. China

Corresponding authors: Gang Li, Neurosurgery Department, Qilu Hospital, Shandong University, Wenhuaxilu Road, Jinan, Shandong Province 250012, P.R. China (E-mail: [email protected]) and Zhen Wang, Department of Physiology, Shandong University School of Medicine, 44#, Wenhua Xi Road, Jinan, Shandong 250012, P.R. China (E-mail: [email protected])Search for more papers by this author
Zhen Wang

Corresponding Author

Zhen Wang

Department of Physiology, Shandong University School of Medicine, 44#, Wenhua Xi Road, Jinan, Shandong, 250012 P.R. China

Corresponding authors: Gang Li, Neurosurgery Department, Qilu Hospital, Shandong University, Wenhuaxilu Road, Jinan, Shandong Province 250012, P.R. China (E-mail: [email protected]) and Zhen Wang, Department of Physiology, Shandong University School of Medicine, 44#, Wenhua Xi Road, Jinan, Shandong 250012, P.R. China (E-mail: [email protected])Search for more papers by this author
First published: 29 January 2016
Citations: 35

Abstract

Although the neuroprotective effects of hydrogen sulfide (H2S) have been demonstrated in several studies, whether H2S 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 H2S on both acute brain injury and neurobehavioral changes as well as the underlying mechanisms after SAH. The H2S 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 H2S donor, could significantly alleviate the development of EBI and cognitive dysfunction induced by SAH via Akt/ERK-related antiapoptosis pathway, and upregulating BDNF-CREB expression.

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