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Article

Mechanism of the protective effect of phenylephrine pretreatment against irradiation-induced damage in the submandibular gland

  • Authors:
    • Bin Xiang
    • Ya-Jie Li
    • Xi-Bo Zhao
    • Yang Zou
    • Zeng‑Guo  Yu
    • Yan-Ming Zhao
    • Fu-Yin Zhang
  • View Affiliations / Copyright

    Affiliations: Department of Oral Medicine and Medical Research Center, Medical College, Dalian University, Dalian, Liaoning 116622, P.R. China, Department of Oral and Maxillofacial Surgery, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China, Department of Radiotherapy, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China, Department of Radiology, Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150086, P.R. China
  • Pages: 875-879
    |
    Published online on: December 19, 2012
       https://doi.org/10.3892/etm.2012.867
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Abstract

Irradiation is a fundamental treatment modality for head and neck malignancies. However, a significant drawback of irradiation treatment is the irreversible damage to salivary glands in the radiation field. Although the protective effect of phenylephrine pretreatment on salivary glands following irradiation has previously been demonstrated, the exact mechanism remains unclear. In this study, we investigated the cytoprotective mechanisms of phenylephrine pretreatment in rat submandibular glands following irradiation. Rats were locally irradiated using a linear accelerator in the head and neck region with a single dose of 20 Gy. Phenylephrine (5 mg/kg) was injected intraperitoneally 30 min prior to irradiation and the submandibular glands were collected on day 7 after irradiation. In comparison with the control group, the irradiation‑only group demonstrated severe atrophy, enhanced cell proliferation and increased apoptosis. The phenylephrine‑pretreated group, however, demonstrated markedly alleviated atrophy, further increased cell proliferation and decreased apoptosis compared with the irradiation‑only group. The data indicated that the cytoprotective mechanisms of phenylephrine pretreatment in the submandibular gland following irradiation may be related to improved cell proliferation and inhibition of cell apoptosis.
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Copy and paste a formatted citation
Spandidos Publications style
Xiang B, Li Y, Zhao X, Zou Y, Yu ZG, Zhao Y and Zhang F: Mechanism of the protective effect of phenylephrine pretreatment against irradiation-induced damage in the submandibular gland. Exp Ther Med 5: 875-879, 2013.
APA
Xiang, B., Li, Y., Zhao, X., Zou, Y., Yu, Z., Zhao, Y., & Zhang, F. (2013). Mechanism of the protective effect of phenylephrine pretreatment against irradiation-induced damage in the submandibular gland. Experimental and Therapeutic Medicine, 5, 875-879. https://doi.org/10.3892/etm.2012.867
MLA
Xiang, B., Li, Y., Zhao, X., Zou, Y., Yu, Z., Zhao, Y., Zhang, F."Mechanism of the protective effect of phenylephrine pretreatment against irradiation-induced damage in the submandibular gland". Experimental and Therapeutic Medicine 5.3 (2013): 875-879.
Chicago
Xiang, B., Li, Y., Zhao, X., Zou, Y., Yu, Z., Zhao, Y., Zhang, F."Mechanism of the protective effect of phenylephrine pretreatment against irradiation-induced damage in the submandibular gland". Experimental and Therapeutic Medicine 5, no. 3 (2013): 875-879. https://doi.org/10.3892/etm.2012.867
Copy and paste a formatted citation
x
Spandidos Publications style
Xiang B, Li Y, Zhao X, Zou Y, Yu ZG, Zhao Y and Zhang F: Mechanism of the protective effect of phenylephrine pretreatment against irradiation-induced damage in the submandibular gland. Exp Ther Med 5: 875-879, 2013.
APA
Xiang, B., Li, Y., Zhao, X., Zou, Y., Yu, Z., Zhao, Y., & Zhang, F. (2013). Mechanism of the protective effect of phenylephrine pretreatment against irradiation-induced damage in the submandibular gland. Experimental and Therapeutic Medicine, 5, 875-879. https://doi.org/10.3892/etm.2012.867
MLA
Xiang, B., Li, Y., Zhao, X., Zou, Y., Yu, Z., Zhao, Y., Zhang, F."Mechanism of the protective effect of phenylephrine pretreatment against irradiation-induced damage in the submandibular gland". Experimental and Therapeutic Medicine 5.3 (2013): 875-879.
Chicago
Xiang, B., Li, Y., Zhao, X., Zou, Y., Yu, Z., Zhao, Y., Zhang, F."Mechanism of the protective effect of phenylephrine pretreatment against irradiation-induced damage in the submandibular gland". Experimental and Therapeutic Medicine 5, no. 3 (2013): 875-879. https://doi.org/10.3892/etm.2012.867
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