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. 2005 Aug 23;390(Pt 2):377–394. doi: 10.1042/BJ20042006

Table 1. Pharmacological and biochemical targets for cardioprotection involving mitochondrial activities.

CPT-1, carnitine palmitoyl transferase-1; DEVD-CHO, acetyl-Asp-Glu-Val-Asp-CHO; PDH, pyruvate dehydrogenase.

Treatment Effect(s) Comment(s) Reference(s)
General Treatments
 Fasting and diet Complex Lowers glycogen stores [205207]
 Brief incubation at low O2 Complex Ischaemic preconditioning [208]
 Glucose/insulin Promote glycolysis May induce protein phosphorylation [209211]
 Pyruvate Metabolic substrate, inhibits fatty acid oxidation Also protects against ROS [212,213]
Inhibitors of fatty acid metabolism
 Trimetazidine, ranolazine Inhibit fatty acid dehydrogenases [214]
 Oxfenicine and other CPT-I inhibitors Inhibit fatty acid entry into mitochondria [206,215]
 Malonate Inhibits fatty acid oxidation [216,217]
 Dichloroacetate Inhibits PDH kinase Promotes glucose utilization [218]
 Carnitine and its derivatives Lowers acetyl-CoA/free CoA, increasing free CoA Promotes glycolysis by decreasing inhibition of PDH [219,220]
 Niacin Reduces plasma non-esterified fatty acids May help NAD recovery [29,221]
Inhibitors of mitochondrial respiration
 Amytal, rotenone Inhibits electron flow, complex I Decreases ROS production [30,222]
 Myxothiazole Inhibits electron flow, complex III Antimycin and CN not protective [223]
 Uncouplers (dinitrophenol) Decrease mitochondrial membrane potential Time/dose dependence, to avoid energy wastage [223]
 Oligomycin Inhibits F1Fo-ATPase Time/dose dependence, to avoid ATP depletion [224]
Inhibitors of ion movement
 Ruthenium Red Blocks mitochondrial Ca2+ import Can also block the sarcoplasmic reticulum Ca2+-channel [225,226]
 Nisoldipine; gallopamil Block Ca2+ entry into cytoplasm [227229]
 Tetrodotoxin Blocks Na+ entry into cytoplasm Damages mitochondria during ischaemia [63]
 Amiloride Blocks cytoplasmic Na+/H+ exchanger Prevents Ca2+ overload, therefore protects against reoxygenation-induced hypercontracture [150,230,231]
 Diltiazem; SEA0400 (5-ethoxyaniline derivative) Inhibits mitochondrial Na+/Ca2+ exchange [232234]
 Diazoxide; nicorandil K+-channel opener Reversed by 5-OH decanoate, decreases ROS and plays roles in other undefined mechanisms [59,66]
Inhibitors of cell damage mechanisms
 Cyclosporin Prevents MPT opening May also inhibit Ca2+/CAM-dependent protein phosphatase (calcineurin) [197,235]
 Propofol Traps ROS ROS promote MPT [199,236]
 DEVD-CHO Caspase 3 inhibitor (prevents downstream steps in apoptosis) Only partially effective [203]
 Dipyridamole; carvedilol; natural compounds such as vitamin E and resveratrol; N-acetylcysteine Antioxidants Restores GSSG/GSH balance [237240]
 Chloramphenicol Inhibits cytochrome P450 mono-oxygenases Also inhibits mitochondrial protein synthesis [241]
Effectors of signalling pathways
 Sevoflurane and other anaesthetics NADH increase on ischaemia is reduced, and total [NAD]+[NADH] is preserved Uncontrolled effects on membrane permeability to ions [242]
 Bromoenol-lactone Inhibits mitochondrial Ca2+-independent phospholipases [243]
 Soluble factors released from preconditioned heart Includes adenosine, catecholamines, NO, prostanoids, endorphins See review [244]
 Adenosine Many effects, including modulation of mK+ATP channel and protein kinase C Other additional protective mechanisms include phosphorylation to 5′-AMP during reperfusion [245,246]