[Fructosamine determination as a screening test for diabetes mellitus in patients with acute coronary heart disease].

Plasma fructosamine was determined in 41 patients with acute coronary heart disease (acute myocardial infarction and instable angina) to assess its usefulness as a screening method for diabetes mellitus. The results (11/15 true positive and 23/26 true negative) were comparable to those for glycated hemoglobin (14/15, 22/26). Discriminant analysis was performed to extract additional information from further laboratory data (glucose and albumin).

Determination of thiocyanate in plasma and saliva without deproteinisation and its validation as a smoking parameter.

A simple photometric procedure was developed for the determination of thiocyanate (SCN-) in plasma and saliva without deproteinisation or dialysis. Fe(III) ions form a red coloured complex with SCN- with a maximum absorbance at 460 nm. Mercury(II) nitrate is used to run a sample blank.

Enzymology of human myometrium: variations related to the hormonal milieu.

The activities of various enzymes involved in glycolysis, tricarboxylic acid cycle and fatty acid oxidation were assayed in human myometrium. A gradient of the activities from fundal to cervical myometrium was observed. In contrast to studies performed in rodents, cyclic changes of glycolytic enzymes could not be detected.

Activities in leiomyomas and myometrium of enzymes involved in energy metabolism.

The activities of six enzymes involved in energy metabolism were measured in leiomyoma specimens and in the adjacent normal myometrium from the uterus of 17 patients. In leiomyomas the specific activities of hexokinase, lactate dehydrogenase and hydroxyacyl-CoA dehydrogenase (HAD) were higher than in myometrium. The soluble protein content was lower in leiomyomas.

Laboratory evaluation of the Greiner G-400 discrete selective multichannel analyzer.

We evaluated the new Greiner G-400 selective multichannel analyzer. Thirty different tests can be run in combination profile and single-test mode at a rate between 150 and 300 tests per hour. The new photometer allows kinetic and equilibrium (endpoint) measurements.