Free magnesium concentration in isolated rabbit hearts subjected to high dose isoproterenol infusion: a 31P NMR study

1997 ◽  
Vol 75 (8) ◽  
pp. 1015-1021 ◽  
Author(s):  
I. Mottet ◽  
J.-F. Goudemant ◽  
M. Francaux ◽  
R. Demeure ◽  
X. Sturbois
Keyword(s):  
Magnesium Concentration ◽  
High Dose ◽  
Nmr Study ◽  
Free Magnesium ◽  
Isoproterenol Infusion

scholarly journals Lack of effect of transmembrane gradient of magnesium and sodium on regulation of cytosolic free magnesium concentration in rat lymphocytes

1997 ◽  
Vol 1329 (1) ◽  
pp. 169-173 ◽  
Author(s):  
Nobuo Sasaki ◽  
Tetsuya Oshima ◽  
Hideo Matsuura ◽  
Mitsuisa Yoshimura ◽  
Mikio Yashiki ◽  
...  
Keyword(s):  
Magnesium Concentration ◽  
Rat Lymphocytes ◽  
Free Magnesium

On the composition of the cytosol of relaxed skeletal muscle of the frog

1988 ◽  
Vol 254 (5) ◽  
pp. C591-C604 ◽  
Author(s):  
R. E. Godt ◽  
D. W. Maughan
Keyword(s):  
Skeletal Muscle ◽  
Computer Program ◽  
Ionic Species ◽  
Magnesium Concentration ◽  
Frog Skeletal Muscle ◽  
Buffer Power ◽  
Whole Muscle ◽  
Free Magnesium

This review summarizes a variety of estimates for the concentrations of the principal cytosolic constituents in frog skeletal muscle. From these estimates (listed in the APPENDIX), we chose representative values and used electroneutrality and osmotic considerations to ensure that all major constituents have been considered. Given total cytosolic concentrations of these constituents from the literature, we employed a computer program to calculate the concentrations of all the major ionic species in the cytosol. In relaxed muscle, electroneutrality and osmotic constraints are fulfilled if, in addition to diffusible species, the charge contribution of the myofilaments is considered. Mean buffer power of the diffusible cytosolic species is calculated to be less than one-third of that experimentally determined for whole muscle. Computations indicate that recent estimates of intracellular free magnesium concentration approximately 1 mM are likely to be correct.

scholarly journals Effects of prolonged application of isoprenaline on intracellular free magnesium concentration in isolated heart of rat

1993 ◽  
Vol 109 (2) ◽  
pp. 443-448 ◽  
Author(s):  
H. Nishimura ◽  
T. Matsubara ◽  
Y. Ikoma ◽  
S. Nakayama ◽  
N. Sakamoto
Keyword(s):  
Isolated Heart ◽  
Magnesium Concentration ◽  
Free Magnesium
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