Biomedical subjects
Publications and source records attributed to J Brauman.
Bone mineralization is impaired in alcoholic non cirrhotics admitted to hospital for withdrawal. The defect is more marked in women than in men. Low 25-OH vitamin D plasma values may be observed in these patients and seem to be related to malnutrition. The degree of bone demineralization is not statistically correlated to 25-OH vitamin D plasma level.
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No modification of plasma or serum viscosity was observed after in vitro addition of ioglycamide in a series of 160 healthy subjects and 1 467 patients including 33 cases of IgM paraproteinemia, 20 with Waldenström's disease. The labelled contrast medium never bound to paraproteins. These results are contradictory to the statements in the literature, that plasma gel formation occurs in Waldenström's disease.
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A simple method for the separation of alkaline phosphatase and pyrophosphatase activities of pig bone ribs is described. Using anionic exchange chromatography (DEAE-cellulose) and affinity chromatography on Concanavalin A sepharose (Con A) eluted by a step pH gradient and Na4P2O7, several activities were obtained. A pyrophosphatase containing very little alkaline phosphatase activity was isolated from Con A sepharose by elution with pyrophosphatase. Our data are consistent, with the hypothesis that cortical alcaline phosphatase and pyrophosphatase activities are not due to a single enzyme protein. The method was used on whole bone, on bone marrow and on cortical bone.
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In 42 untreated patients at various stages of chronic renal failure, plasma level of parathyroid hormone was directly proportional to the degree of renal failure and inversely proportional to the serum calcium level. Plasma parathyroid hormone levels were frequently elevated in 21 patients undergoing regular dialysis treatment, in spite of normal levels of serum total calcium and magnesium. Serum-ionized calcium levels measured in dialyzed patients were usually reduced and inversely correlated with the creatinine levels. Parathyroid hormone levels were correlated with the creatinine levels, but the inverse relationship with ionized calcium was not significant.
Normal standards were defined in term and preterm infants on precise days of the neonatal period for the following serum enzymes: creatine phosphokinase (CPK), lactate dehydrogenase (LDH), diphosphofructoaldolase (ALD), glutamic-oxalacetic (SGOT) transaminase and glutamic pyruvic transaminase (SGPT), CPK values have reached adult standards at 10 days of life. This permits early diagnosis of muscular dystropy, especially the Duchenne form. LDH and ALD are still high at the 10th day of life. Low SGOT and SGPT levels encountered in premature infants is probably due to immaturity of enzyme synthesis in this group of children.
Chronic alcoholism tends to alter the serum levels of numerous blood components. In comparing the serum levels of these elements in a noncirrhotic chronic alcoholic patient after withdrawal, the authors determined a characteristic biological table. The serum factors demonstrating a significant difference after the withdrawal of alcohol were as follows: total cholesterol, triglycerides, total lipids, total bilirubin, SGOT, SGPT, alkaline phosphatase, serum iron, uric acid, hematocrit and the number of red blood cells. It is noteworthy that these tests are those of routine and can be performed in any modestly equipped laboratory.
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