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Biomedical subjects

D N Baron

Publications and source records attributed to D N Baron.

At least 91 records · Page 5Linked to original sources
PubMed1972

Electrophoretic separation and differentiation of enzymes from human and from porcine liver.

The electrophoretic separations of some human and pig liver enzymes on cellulose acetate and Cellogel were investigated, with reference to their joint occurrence in serum of patients undergoing treatment by extracorporeal pig liver perfusion. In every case it was possible to distinguish between the human and pig enzymes. Pig lactate dehydrogenase isoenzymes occupy a position slightly anodic to the corresponding human bands. The aspartate transaminase band of human is more anodic than that of pig, but their cathodic bands have the same mobility. Alanine transaminase of both human and pig liver extract is shown to exist as two bands each towards the anode. The faster moving human band is more anodic than the corresponding pig band, while the other human band is less anodic. Sorbitol dehydrogenase, alkaline phosphatase, and ornithine carbamoyltransferase all exist as one band each. Human sorbitol dehydrogenase is more cathodic than the pig enzyme, human alkaline phosphatase more anodic than the pig enzyme, while human ornithine carbamoyltransferase is less anodic than the pig enzyme.

Alanine Transaminase↗
PubMed1970

An AutoAnalyzer method for estimating serum glyceride glycerol using a glycerokinase procedure.

THE GLYCERIDE GLYCEROL ANALYSIS DEPENDS, AFTER SAPONIFICATION OF TRIGLYCERIDES, ON A LINKED ENZYMATIC PROCEDURE USING GLYCEROKINASE, PYRUVATE KINASE, AND LACTATE DEHYDROGENASE: the final conversion of NADH to NAD(+) is followed fluorimetrically. Twenty analyses can be performed per hour on the AutoAnalyzer; recoveries of added triglycerides ranged between 90 and 104%. In a mixed male and female group the normal range for glyceride glycerol was 2.5 to 15.5 mg/100 ml (0.2-1.4 mmol/l) fasting, and 2.5 to 18.0 mg/100 ml (0.2-1.6 mmol/l) postprandially using fresh serum. There was a significant rise postprandially in older men.

Adult↗
PubMed1970

A fluorimetric and enzymatic method for the estimation of serum total bile acids.

The enzymatic technique using 3alpha-hydroxysteroid dehydrogenase for determining bile acids in blood has been modified by measuring the reduced nicotinamide adenine dinucleotide fluorimetrically. The increased sensitivity attained enables the concentration of total bile acids in serum to be estimated using 3 ml for normal subjects and 1 ml for jaundiced patients. The range of normal values in serum was found to be 0-4.7 mumol/litre for males and 1.0-8.2 mumol/litre for females.

Bile Acids and Salts↗
PubMed1969

Ultramicrofluorimetric determination of calcium in plasma.

A precise and reproducible method is described for the ultramicro fluorimetric determination of calcium in plasma, based upon the formation of a fluorescent complex between calcium and calcein at a strongly alkaline pH. In a group of normal subjects, the mean concentration of plasma calcium was 9.66 mg/100 ml with a normal range of 8.9 to 10.4 mg/100 ml.

Adolescent↗