title: Effects of magnesium, sodium, calcium or potassium intakes on magnesium content in rat skeletal muscle.
abstract: Magnesium skeletal (myocardium and gastrocnemius) content has been studied in rats supplemented with 30 mM dissolutions of Mg2+, Na+, Ca2+ and K+ in drinking water, for 7 or 30 days. In both muscles, the ingestion of Mg2+ for 30 days increased Mg2+ content, while Ca2+ and K+ supplementation caused a significant drop. The increase in Na+ ingestion reduced Mg2+ content in gastrocnemius. There were no significant differences between control and animals supplemented for 7 days. These results suggest that, in the case of supplementation situations, the control mechanisms of the Mg2+ tissular content have a lower gain than those of Na+ and K+ of one order of magnitude.
authors.affiliation: Departamento de Farmacología y Fisiología, Facultad de Medicina, Universidad de Zaragoza, Spain.
authors.forename: P
authors.initials: P
authors.lastname: Gros
authors.forename: J F
authors.initials: JF
authors.lastname: Escanero
authors.forename: J O
authors.initials: JO
authors.lastname: Alda
mesh_terms: D000818:Animals; D002118:Calcium / Q000494:pharmacology*; D008274:Magnesium / Q000378:metabolism* / Q000494:pharmacology; D008297:Male; D018482:Muscle, Skeletal / Q000737:chemistry* / Q000378:metabolism*; D009206:Myocardium / Q000737:chemistry / Q000378:metabolism; D011188:Potassium / Q000494:pharmacology*; D051381:Rats; D017208:Rats, Wistar; D012964:Sodium / Q000494:pharmacology*
chemical_list: D012964:Sodium; D008274:Magnesium; D011188:Potassium; D002118:Calcium