Ultrafiltrable Magnesium in Hyperthyroidism.

Magnesium Partition Studies in Graves ' Disease Andin

In a previous paper (1) we reported the results of determinations of total magnesium and ultrafiltrable magnesium in the serum of patients with hyperthyroidism. These findings were contrasted with those obtained in normal individuals, patients with autonomic imbalance, and patients with various types of muscular dystrophy. It was demonstrated that in normal individuals the percentage of the tot...

Ultrafiltrable calcium and magnesium in ultrafiltrates of serum prepared with the Amicon MPS-1 system.

We evaluated the Amicon micropartition system (MPS-1) for preparing ultrafiltrates of serum for use in evaluating ultrafiltrable Ca and Mg. We found no adsorption of either to the filter and 99.6% retention of serum proteins on the membrane. Ultrafiltrate volumes recovered (100-450 microL) varied with centrifugation time (10-30 min) and temperature. Centrifugation time did not affect the measur...

Magnesium metabolism in patients on regular dialysis treatment.

1. In eight patients being treated by chronic dialysis the relation of magnesium metabolism to the magnesium concentration of the dialysate was investigated. During four periods of 2-6 weeks the magnesium concentrations of the dialysis fluid were 0'44±0'15 mg/IOO ml, 0'70±0'24 mg/IOO ml, 1'83±0'18 mg/IOO ml and 1'97±0'21 mg/IOO ml. 2. During all periods the concentration of plasma magnesium and...

Magnesium metabolism in hyperthyroidism and hypothyroidism.

Reference values for ionized, complexed, and protein-bound plasma magnesium in men and women.

Of the three magnesium fractions in plasma, free ionized magnesium (Mg2+) has the greatest biological activity. Accordingly, information concerning this form in plasma is of cardinal importance to investigations in biometry and human pathology. For this reason, we developed an indirect assay for ionized magnesium in which Mg2+ is determined as the difference between ultrafiltrable magnesium, as...