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“After the combined supplementation of 2 g potassium and 1 g magnesium (27 mmol K+ and 17 mmol Mg2+ daily), both serum potassium and magnesium concentrations increased statistically significantly during the first 2 weeks of treatment.”
“Supplementation with potassium or potassium plus magnesium resulted in a clear trend for suppression of ventricular ectopic activity.”
“Supplementation with potassium plus magnesium but not with potassium only, resulted in a significant rise in serum potassium values (P less than 0.01).”
“Endogenous GABAB receptor activation played a role in the decreased cannabinoid sensitivity observed for epileptiform activity induced by omission of magnesium plus elevation of potassium.”
Journal of neuroscience research • 2012 | View Paper
“In the kidney, effects of magnesium on ion channels may subserve a protective role and may explain how potassium balance is altered in magnesium depletion syndromes.”
“Abstract Because magnesium (Mg ++ ) has been shown to promote maintenance of a negative resting potential it might oppose the depolarizing effect of potassium (K + ) in cardiac cells.”
The American journal of cardiology • 1980 | View Paper
“ Magnesium and potassium exert substantial synergism in maintenance of cardiac rhythm (in particular preventing QT prolongation) and in cardioprotection.”