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Article

Meglumine cyclic adenylate improves neurological function following acute spinal cord injury in rats

  • Authors:
    • Jingwu Liao
    • Jingming Xie
    • Daqiang Lin
    • Ning Lu
    • Limin Guo
    • Weiqiang Li
    • Bo Pu
    • Yang Yang
    • Zhenlong Yang
    • Ying Zhang
    • Yueming Song
  • View Affiliations / Copyright

    Affiliations: Department of Orthopaedic Surgery, The 2nd Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650031, P.R. China, Department of Orthopaedic Surgery, Hospital of Integrated Traditional and Western Medicine, Dazhou, Sichuan 635000, P.R. China, Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
  • Pages: 1225-1230
    |
    Published online on: June 25, 2014
       https://doi.org/10.3892/mmr.2014.2352
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Abstract

Elevation of intracellular cyclic adenosine monophosphate (cAMP) levels facilitates recovery following spinal injury by suppressing secondary pathology and promoting axonal regeneration. However, this treatment strategy is limited by lack of effective and tolerable clinical agents. The present study examined the effects of meglumine cyclic adenylate (MCA) on neurological recovery, cAMP concentration, adenylate cyclase 3 (AC3) activity and phosphodiesterase 4D (PDE4D) activity during early stage acute spinal cord injury (SCI) in rats. A total of 48 Sprague‑Dawley rats were randomly assigned to groups A, B or C, each consisting of 16 animals. SCI was induced by Allen's method using a 7 g x 3 cm extradural weight‑drop impact on spinal cord segment T11. A total of 30 min following SCI, group A received a single 30 mg/kg‑bw i.p. dose of methylprednisolone, group B received 2 mg/kg‑bw i.p. MCA daily for seven days and group C were administered an equal volume of normal saline. Seven days following SCI, the spinal cord samples from eight rats per group were obtained to measure the cAMP concentration, and the activities of AC3 and PDE4D. The remaining eight rats per group were used for behavioral assessments using the inclined plane stability test and Gale scale for up to six weeks post‑SCI. The drug‑treated groups A and B had higher cAMP concentrations and AC3 activities but lower PDE4D activities at the lesion sites, as well as superior behavioral scores post‑SCI compared with the vehicle‑treated group C (P<0.05). Furthermore, cAMP was higher in group B than in group A (P<0.05). It was concluded that MCA may serve as an effective SCI treatment by activating AC3 and suppressing PDE4D.
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Copy and paste a formatted citation
Spandidos Publications style
Liao J, Xie J, Lin D, Lu N, Guo L, Li W, Pu B, Yang Y, Yang Z, Zhang Y, Zhang Y, et al: Meglumine cyclic adenylate improves neurological function following acute spinal cord injury in rats. Mol Med Rep 10: 1225-1230, 2014.
APA
Liao, J., Xie, J., Lin, D., Lu, N., Guo, L., Li, W. ... Song, Y. (2014). Meglumine cyclic adenylate improves neurological function following acute spinal cord injury in rats. Molecular Medicine Reports, 10, 1225-1230. https://doi.org/10.3892/mmr.2014.2352
MLA
Liao, J., Xie, J., Lin, D., Lu, N., Guo, L., Li, W., Pu, B., Yang, Y., Yang, Z., Zhang, Y., Song, Y."Meglumine cyclic adenylate improves neurological function following acute spinal cord injury in rats". Molecular Medicine Reports 10.3 (2014): 1225-1230.
Chicago
Liao, J., Xie, J., Lin, D., Lu, N., Guo, L., Li, W., Pu, B., Yang, Y., Yang, Z., Zhang, Y., Song, Y."Meglumine cyclic adenylate improves neurological function following acute spinal cord injury in rats". Molecular Medicine Reports 10, no. 3 (2014): 1225-1230. https://doi.org/10.3892/mmr.2014.2352
Copy and paste a formatted citation
x
Spandidos Publications style
Liao J, Xie J, Lin D, Lu N, Guo L, Li W, Pu B, Yang Y, Yang Z, Zhang Y, Zhang Y, et al: Meglumine cyclic adenylate improves neurological function following acute spinal cord injury in rats. Mol Med Rep 10: 1225-1230, 2014.
APA
Liao, J., Xie, J., Lin, D., Lu, N., Guo, L., Li, W. ... Song, Y. (2014). Meglumine cyclic adenylate improves neurological function following acute spinal cord injury in rats. Molecular Medicine Reports, 10, 1225-1230. https://doi.org/10.3892/mmr.2014.2352
MLA
Liao, J., Xie, J., Lin, D., Lu, N., Guo, L., Li, W., Pu, B., Yang, Y., Yang, Z., Zhang, Y., Song, Y."Meglumine cyclic adenylate improves neurological function following acute spinal cord injury in rats". Molecular Medicine Reports 10.3 (2014): 1225-1230.
Chicago
Liao, J., Xie, J., Lin, D., Lu, N., Guo, L., Li, W., Pu, B., Yang, Y., Yang, Z., Zhang, Y., Song, Y."Meglumine cyclic adenylate improves neurological function following acute spinal cord injury in rats". Molecular Medicine Reports 10, no. 3 (2014): 1225-1230. https://doi.org/10.3892/mmr.2014.2352
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