Glucose-Insulin-Potassium Solution Protects Ventricular Myocytes of Neonatal Rat in an In Vitro Coverslip Ischemia/Reperfusion Model
Korean Circulation Journal
; : 234-241, 2015.
Article
in En
| WPRIM
| ID: wpr-19603
Responsible library:
WPRO
ABSTRACT
BACKGROUND AND OBJECTIVES: The benefit of high glucose-insulin-potassium (GIK) solution in clinical applications is controversial. We established a neonatal rat ventricular myocyte (NRVM) in vitro coverslip ischemia/reperfusion (I/R) model and investigated the effects of GIK solution on suppressing reactive oxygen species (ROS) and upregulating O-GlcNacylation, which protects cells from ischemic injury. MATERIALS AND METHODS: NRVMs were isolated from postnatal day 3-4 Sprague-Dawley rat pups and grown in Dulbecco's modified Eagle's medium containing high glucose (4.5 g/L), fetal bovine serum, and penicillin/streptomycin. The effects of the GIK solution on ROS production, apoptosis, and expression of O-GlcNAc and O-GlcNAc transferase (OGT) were investigated in the coverslip I/R model. RESULTS: Covering the 24-well culture plates for 3 hr with 12 mm diameter coverslips resulted in the appropriate ischemic shock. Glucose and insulin synergistically reduced ROS production, protected NRVM dose-dependently from apoptosis, and altered O-GlcNAc and OGT expression. CONCLUSION: The high GIK solution protected NRVM from I/R injury in vitro by reducing ROS and altering O-GlcNacylation.
Key words
Full text:
1
Index:
WPRIM
Main subject:
Shock
/
Transferases
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Reactive Oxygen Species
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Rats, Sprague-Dawley
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Apoptosis
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Muscle Cells
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Myocytes, Cardiac
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Glucose
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Insulin
Limits:
Animals
Language:
En
Journal:
Korean Circulation Journal
Year:
2015
Type:
Article