scholarly journals Regulation of glucose uptake by muscle. 3. The effects of insulin, anoxia, salicylate and 2:4-dinitrophenol on membrane transport and intracellular phosphorylation of glucose in the isolated rat heart*

1959 ◽  
Vol 73 (4) ◽  
pp. 573-579 ◽  
Author(s):  
H. E. Morgan ◽  
P J Randle ◽  
D. M. Regen
Keyword(s):  
Glucose Uptake ◽  
Membrane Transport ◽  
Rat Heart ◽  
Isolated Rat Heart ◽  
Isolated Rat

scholarly journals Mechanical Postconditioning Promotes Glucose Metabolism and AMPK Activity in Parallel with Improved Post-Ischemic Recovery in an Isolated Rat Heart Model of Donation after Circulatory Death

2020 ◽  
Vol 21 (3) ◽  
pp. 964 ◽  
Author(s):  
Maria Arnold ◽  
Natalia Méndez-Carmona ◽  
Patrik Gulac ◽  
Rahel K Wyss ◽  
Nina Rutishauser ◽  
...  
Keyword(s):  
Glucose Metabolism ◽  
Glucose Uptake ◽  
Rat Heart ◽  
Ischemia Reperfusion ◽  
Left Ventricular ◽  
Isolated Rat Heart ◽  
Donation After Circulatory Death ◽  
Heart Model ◽  
Circulatory Death ◽  
Isolated Rat

Donation after circulatory death (DCD) could improve donor heart availability; however, warm ischemia-reperfusion injury raises concerns about graft quality. Mechanical postconditioning (MPC) may limit injury, but mechanisms remain incompletely characterized. Therefore, we investigated the roles of glucose metabolism and key signaling molecules in MPC using an isolated rat heart model of DCD. Hearts underwent 20 min perfusion, 30 min global ischemia, and 60 minu reperfusion with or without MPC (two cycles: 30 s reperfusion—30 s ischemia). Despite identical perfusion conditions, MPC either significantly decreased (low recovery = LoR; 32 ± 5%; p < 0.05), or increased (high recovery = HiR; 59 ± 7%; p < 0.05) the recovery of left ventricular work compared with no MPC (47 ± 9%). Glucose uptake and glycolysis were increased in HiR vs. LoR hearts (p < 0.05), but glucose oxidation was unchanged. Furthermore, in HiR vs. LoR hearts, phosphorylation of raptor, a downstream target of AMPK, increased (p < 0.05), cytochrome c release (p < 0.05) decreased, and TNFα content tended to decrease. Increased glucose uptake and glycolysis, lower mitochondrial damage, and a trend towards decreased pro-inflammatory cytokines occurred specifically in HiR vs. LoR MPC hearts, which may result from greater AMPK activation. Thus, we identify endogenous cellular mechanisms that occur specifically with cardioprotective MPC, which could be elicited in the development of effective reperfusion strategies for DCD cardiac grafts.

Effect of Hydrogen Sulfide on Reactions of Isolated Rat Heart under Volume Load and Ischemia-Reperfusion

2013 ◽  
Vol 4 (3) ◽  
pp. 201-212
Author(s):  
Tetyana V Shimanskaya ◽  
Yulia V. Goshovska ◽  
Olena M. Semenykhina ◽  
Vadim F. Sagach
Keyword(s):  
Hydrogen Sulfide ◽  
Rat Heart ◽  
Ischemia Reperfusion ◽  
Isolated Rat Heart ◽  
Volume Load ◽  
Isolated Rat

‘Cross Talk’ Between Opioid Peptide and Adrenergic Receptor Signaling in Isolated Rat Heart

Circulation ◽  
1997 ◽  
Vol 95 (8) ◽  
pp. 2122-2129 ◽  
Author(s):  
Salvatore Pepe ◽  
Rui-Ping Xiao ◽  
Charlene Hohl ◽  
Ruth Altschuld ◽  
Edward G. Lakatta
Keyword(s):  
Cross Talk ◽  
Rat Heart ◽  
Adrenergic Receptor ◽  
Opioid Peptide ◽  
Isolated Rat Heart ◽  
Receptor Signaling ◽  
Isolated Rat

Comparison of Polarized and Depolarized Arrest in the Isolated Rat Heart for Long-term Preservation

Circulation ◽  
1997 ◽  
Vol 96 (9) ◽  
pp. 3148-3156 ◽  
Author(s):  
A. K. Snabaitis ◽  
M. J. Shattock ◽  
D. J. Chambers
Keyword(s):  
Rat Heart ◽  
Isolated Rat Heart ◽  
Long Term Preservation ◽  
Isolated Rat
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