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The expression of insulin-like growth factor-1 in senior patients with diabetes and dementia

  • Authors:
    • Yan‑Ling Zhou
    • Shu‑Qing Liu
    • Bin Yuan
    • Ning Lu
  • View Affiliations / Copyright

    Affiliations: Department of Neurology, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264003, P.R. China, Department of Neurology, Linglong Yingcheng Hospital, Zhaoyuan, Shandong 265400, P.R. China, Department of Neurology, Affiliated Hospital of Heze Medical College, Heze, Shandong 274000, P.R. China, Department of Geriatric Medicine, Yantai Affiliated Hospital of Binzhou Medical University, Yantai, Shandong 264003, P.R. China
    Copyright: © Zhou et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 103-106
    |
    Published online on: December 6, 2016
       https://doi.org/10.3892/etm.2016.3961
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Abstract

This study was conducted to investigate the expression of insulin-like growth factor-1 (IGF-1) in elderly patients with diabetes and dementia and to analyze the expression mechanism. A total of 30 senior patients with diabetes and dementia (group A), 30 senior patients with dementia but no diabetes (group B), 30 senior patients with diabetes but no dementia (group C), and 30 healthy seniors (group D) were continuously selected. The ELISA method was used to test the level of serum IGF‑1, β‑amyloid peptide (Aβ) and the phosphorylation of immunohistochemical staining of microtubule associated protein (tau protein). Western blot analysis was utilized to test the level of prion protein (PrP), forkhead transcription factor O (FOXO) subfamily protein, p-PI3K and p-Akt. The levels of IGF‑1, Aβ, tau protein positive rate, PrP, FOXO protein, p‑PI3K, and p‑Akt in group A were significantly higher than that in group B, which was higher than in groups C and D. The results between groups A and B, but not groups C and D, were statistically significant (P<0.05). IGF‑1 was highly expressed in senior patients with diabetes and dementia. Thus, IGF‑1 can adjust the expression of PrP and FOXO through p-PI3K/Akt pathway and further impact the formation of Aβ and tau protein, leading to dementia.
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Copy and paste a formatted citation
Spandidos Publications style
Zhou YL, Liu SQ, Yuan B and Lu N: The expression of insulin-like growth factor-1 in senior patients with diabetes and dementia. Exp Ther Med 13: 103-106, 2017.
APA
Zhou, Y., Liu, S., Yuan, B., & Lu, N. (2017). The expression of insulin-like growth factor-1 in senior patients with diabetes and dementia. Experimental and Therapeutic Medicine, 13, 103-106. https://doi.org/10.3892/etm.2016.3961
MLA
Zhou, Y., Liu, S., Yuan, B., Lu, N."The expression of insulin-like growth factor-1 in senior patients with diabetes and dementia". Experimental and Therapeutic Medicine 13.1 (2017): 103-106.
Chicago
Zhou, Y., Liu, S., Yuan, B., Lu, N."The expression of insulin-like growth factor-1 in senior patients with diabetes and dementia". Experimental and Therapeutic Medicine 13, no. 1 (2017): 103-106. https://doi.org/10.3892/etm.2016.3961
Copy and paste a formatted citation
x
Spandidos Publications style
Zhou YL, Liu SQ, Yuan B and Lu N: The expression of insulin-like growth factor-1 in senior patients with diabetes and dementia. Exp Ther Med 13: 103-106, 2017.
APA
Zhou, Y., Liu, S., Yuan, B., & Lu, N. (2017). The expression of insulin-like growth factor-1 in senior patients with diabetes and dementia. Experimental and Therapeutic Medicine, 13, 103-106. https://doi.org/10.3892/etm.2016.3961
MLA
Zhou, Y., Liu, S., Yuan, B., Lu, N."The expression of insulin-like growth factor-1 in senior patients with diabetes and dementia". Experimental and Therapeutic Medicine 13.1 (2017): 103-106.
Chicago
Zhou, Y., Liu, S., Yuan, B., Lu, N."The expression of insulin-like growth factor-1 in senior patients with diabetes and dementia". Experimental and Therapeutic Medicine 13, no. 1 (2017): 103-106. https://doi.org/10.3892/etm.2016.3961
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