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Article

Effects of mild induced hypothermia on hippocampal connexin 43 and glutamate transporter 1 expression following traumatic brain injury in rats

  • Authors:
    • Yue‑Hong Li
    • Chun‑Lai Zhang
    • Xiao‑Yan Zhang
    • Hong‑Xia Zhou
    • Ling‑Li Meng
  • View Affiliations / Copyright

    Affiliations: Department of Obstetrics and Gynecology, Tangshan Gongren Hospital, Tangshan, Hebei 063000, P.R. China, Department of Cardiology, Tangshan Gongren Hospital, Tangshan, Hebei 063000, P.R. China, School of Basic Medical Sciences, Hebei United University, Tangshan, Hebei 063000, P.R. China
  • Pages: 1991-1996
    |
    Published online on: November 12, 2014
       https://doi.org/10.3892/mmr.2014.2928
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Abstract

Traumatic brain injury (TBI) is a common cause of worldwide disability and mortality. Currently, the incidence and prevalence of TBI is markedly increasing and an effective therapy is lacking. Therapeutic hypothermia (32‑35˚C) has been reported to reduce intracranial pressure and induce putative neuroprotective effects. However, the underlying molecular mechanisms remain to be elucidated. The aim of the present study was to investigate the effects of mild induced hypothermia (MIH) on the expression of connexin 43 (Cx43) and glutamate transporter 1 (GLT‑1) in the hippocampus following TBI in rats. A rat model of TBI was created using a modified weight‑drop device, followed by 4 h of hypothermia (33˚C) or normothermia (37˚C). A wet‑dry weight method was used to assess brain edema and spatial learning ability was evaluated using a Morris water maze. The levels of Cx43 and GLT‑1 were detected by immunohistochemical and western blot analysis, respectively. The results demonstrated that MIH treatment improved TBI‑induced brain edema and neurological function deficits. In addition, therapeutic MIH significantly downregulated Cx43 expression and upregulated the levels of GLT‑1 in the hippocampus post‑TBI. These findings suggested that treatment with MIH may provide a novel neuroprotective therapeutic strategy for TBI through reversing the increase in Cx43 protein and the decrease in GLT‑1.
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Copy and paste a formatted citation
Spandidos Publications style
Li YH, Zhang CL, Zhang XY, Zhou HX and Meng LL: Effects of mild induced hypothermia on hippocampal connexin 43 and glutamate transporter 1 expression following traumatic brain injury in rats. Mol Med Rep 11: 1991-1996, 2015.
APA
Li, Y., Zhang, C., Zhang, X., Zhou, H., & Meng, L. (2015). Effects of mild induced hypothermia on hippocampal connexin 43 and glutamate transporter 1 expression following traumatic brain injury in rats. Molecular Medicine Reports, 11, 1991-1996. https://doi.org/10.3892/mmr.2014.2928
MLA
Li, Y., Zhang, C., Zhang, X., Zhou, H., Meng, L."Effects of mild induced hypothermia on hippocampal connexin 43 and glutamate transporter 1 expression following traumatic brain injury in rats". Molecular Medicine Reports 11.3 (2015): 1991-1996.
Chicago
Li, Y., Zhang, C., Zhang, X., Zhou, H., Meng, L."Effects of mild induced hypothermia on hippocampal connexin 43 and glutamate transporter 1 expression following traumatic brain injury in rats". Molecular Medicine Reports 11, no. 3 (2015): 1991-1996. https://doi.org/10.3892/mmr.2014.2928
Copy and paste a formatted citation
x
Spandidos Publications style
Li YH, Zhang CL, Zhang XY, Zhou HX and Meng LL: Effects of mild induced hypothermia on hippocampal connexin 43 and glutamate transporter 1 expression following traumatic brain injury in rats. Mol Med Rep 11: 1991-1996, 2015.
APA
Li, Y., Zhang, C., Zhang, X., Zhou, H., & Meng, L. (2015). Effects of mild induced hypothermia on hippocampal connexin 43 and glutamate transporter 1 expression following traumatic brain injury in rats. Molecular Medicine Reports, 11, 1991-1996. https://doi.org/10.3892/mmr.2014.2928
MLA
Li, Y., Zhang, C., Zhang, X., Zhou, H., Meng, L."Effects of mild induced hypothermia on hippocampal connexin 43 and glutamate transporter 1 expression following traumatic brain injury in rats". Molecular Medicine Reports 11.3 (2015): 1991-1996.
Chicago
Li, Y., Zhang, C., Zhang, X., Zhou, H., Meng, L."Effects of mild induced hypothermia on hippocampal connexin 43 and glutamate transporter 1 expression following traumatic brain injury in rats". Molecular Medicine Reports 11, no. 3 (2015): 1991-1996. https://doi.org/10.3892/mmr.2014.2928
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