Relative surface hydrophobicity, antigen K1 and haemagglutinating activity are associated in Escherichia coli.

Hydrophobic property of 136 Escherichia coli strains was examined by salt aggregation test (SAT). Out of the tested strains 61 were SAT positive. The correlations among the surface properties characterized by SAT and other phenotypical properties, e.

Determination and kinetics of antibody response to Candida albicans in ulcerative colitis.

Levels of antibody against the mannan component of Candida albicans cell wall were determined and followed in 57 ulcerative colitis patients. The appearance of higher titers suggests an intermittent (benign) clinical course of the disease. Lower titer values at repeated checks are associated with a continuous (severe) clinical course.

Adhesion properties of E. coli cells in the presence of promethazine.

Some E. coli strains were tested for adsorption to HEp-2 cells and on aluminium hydroxide gel. The adhesiveness of E.

Adsorption to Al(OH), gel of Escherichia coli is correlated with O and K antigens and with type of extraintestinal infection.

Living suspensions of 89 Escherichia coli strains were tested for adsorption to Al(OH)3 gel in the presence of phosphate ions. On the basis of AC50 (phosphate molarity inhibiting 50% adsorption of the strain examined), E. coli strains could be classified into two main groups.

Pancreatic glucagon secretion and exocrine function (BT-PABA test) in chronic pancreatitis.

Plasma concentrations of pancreatic glucagon, C-peptide, and pancreatic polypeptide were measured during arginine stimulation in 16 patients with chronic pancreatitis, in eight subjects with idiopathic diabetes mellitus, and in seven healthy controls. The hormone responses were compared with exocrine pancreatic function as assessed using the urinary excretion rate of p-aminobenzoic acid after oral ingestion of n-benzoyl-l-tyrosyl-p-aminobenzoic acid (BT-PABA). The increase in pancreatic glucagon levels during arginine stimulation was significantly reduced in patients with chronic pancreatitis compared to healthy controls, most markedly in those with secondary diabetes.