Chen Z, Zhang L, Liu C, Wang X, Chen C. Effect of propofol on the skeletal muscle insulin receptor in rats with hepatic ischemia-reperfusion injury.
J Int Med Res 2019;
48:300060519894450. [PMID:
31885348 PMCID:
PMC7607524 DOI:
10.1177/0300060519894450]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Objective
To investigate the effect of propofol on the expression and phosphorylation of the skeletal muscle insulin receptor and its substrates following hepatic ischemia-reperfusion injury (HIRI).
Methods
Sixty healthy Wistar rats were divided randomly into a propofol group (P) and an ischemia-reperfusion group (I/R). Rats in the P group received propofol infusion prior to ischemia and during a 120-minute post-reperfusion period. Plasma glucose and insulin concentrations were measured, as well as expression levels of the insulin signaling proteins insulin receptor (IR) β unit (IRβ) and IR substrate 1 (IRS-1). In addition, tyrosine phosphorylation levels of these proteins were measured in skeletal muscle.
Results
Plasma glucose levels in the two groups were higher at 2 hours after reperfusion (T2) versus exposure of the hepatic hilum (T1). Plasma glucose levels in the I/R group were higher than those in the P group, while insulin levels at T2 were lower. In addition, phosphotyrosine levels of IRβ and IRS-1 were decreased by 32.1% and 22.4%, respectively.
Conclusion
Propofol increased phosphotyrosine levels of IRβ and IRS-2, resulting in an alleviation of increased plasma glucose levels following HIRI.
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