Open Access

Pharmacological postconditioning with atorvastatin calcium attenuates myocardial ischemia/reperfusion injury in diabetic rats by phosphorylating GSK3β

  • Authors:
    • Linyan Chen
    • Ping Cai
    • Zhendong Cheng
    • Zaibao Zhang
    • Jun Fang
  • View Affiliations

  • Published online on: May 17, 2017     https://doi.org/10.3892/etm.2017.4457
  • Pages: 25-34
  • Copyright: © Chen et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

Diabetes is an independent risk factor for myocardial ischemia, and many epidemiological data and laboratory studies have revealed that diabetes significantly exacerbated myocardial ischemia/reperfusion injury and ameliorated protective effects. The present study aimed to determine whether pharmacological postconditioning with atorvastatin calcium lessened diabetic myocardial ischemia/reperfusion injury, and investigated the role of glycogen synthase kinase (GSK3β) in this. A total of 72 streptozotocin‑induced diabetic rats were randomly divided into six groups, and 24 age‑matched male non‑diabetic Sprague‑Dawley rats were randomly divided into two groups. Rats all received 40 min myocardial ischemia followed by 180 min reperfusion, except sham‑operated groups. Compared with the non‑diabetic ischemia/reperfusion model group, the diabetic ischemia/reperfusion group had a comparable myocardial infarct size, but a higher level of serum cardiac troponin I (cTnI) and morphological alterations to their myocardial cells. Compared with the diabetic ischemia/reperfusion group, the group that received pharmacological postconditioning with atorvastatin calcium had smaller myocardial infarct sizes, lower levels of cTnI, reduced morphological alterations to myocardial cells, higher levels of p‑GSK3β, heat shock factor (HSF)‑1 and heat shock protein (HSP)70. The cardioprotective effect conferred by atorvastatin calcium did not attenuate myocardial ischemia/reperfusion injury following application of TDZD‑8, which phosphorylates and inactivates GSK3β. Pharmacological postconditioning with atorvastatin calcium may attenuate diabetic heart ischemia/reperfusion injury in the current context. The phosphorylation of GSK3β serves a critical role during the cardioprotection in diabetic rats, and p‑GSK3β may accelerate HSP70 production partially by activating HSF‑1 during myocardial ischemic/reperfusion injury.
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July-2017
Volume 14 Issue 1

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Chen L, Cai P, Cheng Z, Zhang Z and Fang J: Pharmacological postconditioning with atorvastatin calcium attenuates myocardial ischemia/reperfusion injury in diabetic rats by phosphorylating GSK3β. Exp Ther Med 14: 25-34, 2017.
APA
Chen, L., Cai, P., Cheng, Z., Zhang, Z., & Fang, J. (2017). Pharmacological postconditioning with atorvastatin calcium attenuates myocardial ischemia/reperfusion injury in diabetic rats by phosphorylating GSK3β. Experimental and Therapeutic Medicine, 14, 25-34. https://doi.org/10.3892/etm.2017.4457
MLA
Chen, L., Cai, P., Cheng, Z., Zhang, Z., Fang, J."Pharmacological postconditioning with atorvastatin calcium attenuates myocardial ischemia/reperfusion injury in diabetic rats by phosphorylating GSK3β". Experimental and Therapeutic Medicine 14.1 (2017): 25-34.
Chicago
Chen, L., Cai, P., Cheng, Z., Zhang, Z., Fang, J."Pharmacological postconditioning with atorvastatin calcium attenuates myocardial ischemia/reperfusion injury in diabetic rats by phosphorylating GSK3β". Experimental and Therapeutic Medicine 14, no. 1 (2017): 25-34. https://doi.org/10.3892/etm.2017.4457