[Effect of iodoacetamide on cell-cell adhesion of fibroblasts in the rat].

The -SH groups of rat fibroblasts of cell-coat were blocked with Iodacetamide. This substance interferes negatively on the homologous intercellular adhesion of the tested cells, with a proportional effect related to the concentration used. The meaning of -SH groups on the cell-cell interactions is discussed.

[Clinico-functional data concerning chronic asthmatic bronchitis patients treated wih guacetisal].

Guacetisal was administered to a group of patients suffering from chronic asthmatic bronchitis. The drug in question was shown to possess a good fluidifying, expectorant and indirect anti-cough action, by means of an initial increase of the bronchial secretions and a subsequent progressive decrease of secretions towards the end of the treatment. The analysis of the respiratory parameters examined showed no modifications of statistical significance.

Regulation of ornithine decarboxylase activity by amino acids, cyclic AMP and luteinizing hormone in cultured mammalian cells.

Any one of five amino acis (alanine, asparagine, glutamine, glycine, and serine) is an essential requirement for the induction of ornithine decarboxylase (EC 4.1.1.

[Distribution of the O-groups of E. coli strains isolated from urinary infections in Sardinia].

We refer to the results of the serological identification of E.Coli strains from urinary tract infections and from faeces of healthy subjects in Sardinia. The serological groups more frequently found in urinary tract infections (06, 018, 075) of our geographical region one similar to those of other authors.

[Lipid aspects in subjects with glucose-6-phosphate dehydrogenase deficiency].

To control some aspects of Lipid metabolism in G-6-PD defective subjects, are evaluated the haematic levels of Cholesterol, Tri glycerides, total Lipids and Lipoproteins. There is no significative difference between enzymopathic and normal control subjects.

Role of valine and isoleucine as regulators of actinomycin peptide formation by Streptomyces chrysomallus.

Katz, Edward (Rutgers, The State University, New Brunswick, N. J.), Clarence R.