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Biomedical subjects

S Sailer

Publications and source records attributed to S Sailer.

At least 73 records · Page 4Linked to original sources
PubMed1976

[The effect of Glipizide on the blood glucose and insulin in non-ketotic diabetes mellitus (author's transl)].

9 patients suffering from non-ketotic diabetes were treated for 7 days with glipizide, a sulphonylurea derivative. A decrease in blood glucose level was observed in 6 patients during the course of the day, accompanied by an increase in immunoreactive insulin during the first half of the day and an increase in the insulinogenic index. In one patient with insulinopenic diabetes glipizide had only a very small effect on the blood glucose and insulin concentration. 2 patients suffering from insulin resistance caused by type IV hyperlipoproteinanemia and obesity showed an increase in insulin, but no decrease in blood glucose concentration. These results are a further indication that sulphonylurea agents should be administered only in the case of certain specific types of diabetes, because no therapeutic response can be expected in diabetes caused by insulinopenia and insulin resistance.

Adult↗
PubMed1976

[Lipolysis in human adipose tissue (author's transl)].

Lipolytic activity was measured under different conditions in isolated fat cells and homogenates of human adipose tissue of the greater omentum. It was demonstrated that lipolysis took place in isolated fat cells at an optimum pH of 7.4 and was markedly stimulated by noradrenaline, but not by blood serum. By contrast lipolysis was significantly stimulated by blood serum, but not by noradrenaline, in homogenates of adipose tissue. Serum-stimulated lipolysis exhibited optimum activity at pH 8 and was inhibited by 1M sodium chloride. It is concluded that lipolytic activity in isolated fat cells can mainly be ascribed to the action of hormone-sensitive lipase, whereas lipolysis in homogenates of adipose tissue in the presence of serum is mostly regulated by lipoprotein lipase.

Adipose Tissue↗
PubMed1976

An enzymatic method for the determination of the initial rate of cholesterol esterification in human plasma.

A method is described for the determination of the initial rate of cholesterol esterification in human plasma, based on the enzymatic determination of free cholesterol in the plasma before and after incubation at 37 degrees C. The cholesterol esterification rate was linear up to 40 minutes. In 18 normal male and 10 normal female subjects the cholesterol esterification rate was 91 +/- 15 (mean +/- SD) and 62 +/- 12 nmoles/hr/ml of plasma, respectively.

Acyltransferases↗
PubMed1974

Separation of the main lipoprotein density classes from human plasma by rate-zonal ultracentrifugation.

The major lipoprotein density classes (chylomicrons-VLDL, LDL, HDL(2) and HDL(3)) were isolated from human plasma in a two-step ultracentrifugal procedure using the Ti-14 zonal rotor. The isolation of the two major high density lipoprotein subclasses (HDL(2) and HDL(3)) was achieved in a 24-hr run using a nonlinear NaBr gradient in the density range of 1.00-1.40. The lipoproteins with a density < 1.063 found in the rotor's center were isolated in a second run of 140 min duration using a continuous linear NaBr gradient in the density range of 1.00-1.30. The isolated lipoproteins were analyzed for chemical composition and for electrophoretic mobility; purity of isolated fractions was checked by immunochemistry. The lipoproteins exhibited flotation rates, chemical compositions, and molecular weights similar to those found with the common sequential procedures in angle-head rotors. The amount of lipoprotein lipids in the bottom fraction of the zonal rotor was comparable to that of the angle-head rotor. The described method yields the main lipoprotein density classes free from albumin in a very short running time; compared with the rate-zonal techniques already in use, this method allows the quantitative separation of an additional lipoprotein density class (HDL(2)) without increasing the running time. Furthermore, this procedure proved to be suitable for isolation of plasma lipoproteins from subjects with various types and varying degrees of hyperlipoproteinemia.

Adolescent↗