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Determination of lonized calcium in serum with a calcium electrode
Biochemical Medicine, 1970 Abstract Using a calcium-sensitive electrode, the determination of ionic calcium in human serum was investigated. Serum samples obtained from 17 healthy individuals yielded the following data: total calcium 9.63 ± 1.11 mg 100 ml ; ionized calcium 4.72 ± 0.61 mg 100 ml ; and bound calcium, 4.91 ± 0.83 mg 100 ml .
Raman, A.
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JAMA: The Journal of the American Medical Association, 1970
To the Editor.— In a patient with proven hyperparathyroidism, who demonstrated normocalcemia for a 12-month period ( 210 :2063, 1969), repeated total serum calcium values were within the normal range of the reporting laboratory: 8.8 to 11.0 per 100 ml. Though hypercalcemia is considered to be the most constant finding in primary hyperparathyroidism, a
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To the Editor.— In a patient with proven hyperparathyroidism, who demonstrated normocalcemia for a 12-month period ( 210 :2063, 1969), repeated total serum calcium values were within the normal range of the reporting laboratory: 8.8 to 11.0 per 100 ml. Though hypercalcemia is considered to be the most constant finding in primary hyperparathyroidism, a
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Effect of thiazides on serum calcium
Clinical Pharmacology & Therapeutics, 1979A retrospective study of 22 hypertensive patients who were treated with thiazide diuretics for 2 to 12 yr revealed that 36% developed transient, self-limited asymptomatic elevations of serum calcium which occurred at varying periods of therapy and returned to normal within 2 to 4 wk despite continued administration of thiazides.
M, Mohamadi, L, Bivins, K L, Becker
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The calcium fractions of normal serum
Clinical Biochemistry, 1971Summary 1. The calcium fractions of normal serum at room temperature have been investigated with a newly introduced ultrafiltration cone filter and a calcium-sensitive electrode. 2. Mean values obtained were 1.53 mM/L for ultrafiltrable calcium (59% of the total calcium), and 1.07 mM/L for protein-bound calcium (41% of the total calcium).
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Determination of serum and urine calcium
Clinica Chimica Acta, 1967Abstract Equipment for quantitative visualization of the fluorometric end point in the titration of calcium with EDTA using calcein indicator is described. Results with pooled serum had an acceptable standard deviation and agreement with isolation as the oxalate was excellent.
G G, Rudolph, J J, Holler, W J, Ford
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Serum Calcium in Greenland Eskimos
Acta Medica Scandinavica, 1983ABSTRACT. Serum calcium i Greenland Eskimos living in Greenland is significantly lower than in Greenland Eskimos and Danes living in Denmark (p<0.001). Danes living in Greenland show intermediate values. High vitamin D levels have been found in Eskimos (Canada). Thus vitamin D deficiency is probably not the cause of the low serum calcium levels.
B B, Jeppesen, B, Harvald
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Interactions of calcium with serum albumin
Archives of Biochemistry and Biophysics, 1953Abstract Binding of calcium ions by bovine serum albumin has been found to be essentially independent of temperature over the range 0 to 25 °C. On the other hand, pH has a very pronounced effect. No complexes with calcium are detectable until the protein is appreciably above its isoelectric point.
S, KATZ, I M, KLOTZ
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Direct microdetermination of serum calcium
Clinica Chimica Acta, 1973Abstract A rapid micro method for the direct determination of calcium in serum is described wherein cresolphthalein complexone was employed as the color reagent and dimethyl sulfoxide as the organic solvent responsible for increased solubility of reagents and stabilization of the system.
E S, Baginski +3 more
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