[Diagnostics and differential diagnostics of bronchial asthma and chronic obstructive pulmonary disease].

The subjects of the study were 14 patients with bronchial asthma (BA) and 11 patients with chronic obstructive pulmonary diseases (COPD). A special diagnostic approach, including spirography with a broncholytic test after inhalation loading (IL), was developed and applied to these patients in order to optimize diagnostics and differentiation diagnostics of BA. IL included the use of hypertonic sodium chloride solution inhalation.

[Body impedance recording in the assessment of stroke volume].

The first derivative of the integral tetrapolar rheogram of the body, body impedance recording, was found to show changes in blood flow in the arterial compression chamber. Evidence was given for a close relation of the distance between the electrodes while recording an integral rheogram of the body and the examinees' height. The relation of the distance to the examinees' height was equal in males and females and proved to be lower than that previously applied.

[The effect of polysaccharide from typhoid bacteria on hemopoietic stem cells].

A study was made of dynamics of the content of colony-forming units (CFU) in the spleen and the bone marrow of the nonirradiated F1 (CBA times C57BL) mice to which polysaccharide (PS) from typhoid bacilli was administered. A method of exogenous colony formation was used in this work. A single PS administration increased the CFU count in the bone marrow (2-2 1/2 times) and in the spleen (3 times).

Effect of bacterial polysaccharide on the number of antibody-producing cells in the spleen of irradiated and unirradiated mice.

The effect of bacterial polysaccharide on the number of spleen cells producing antibodies against sheep's red cells was investigated in irradiated and unirradiated mice. The polysaccharide increased the number of antibody-producing cells both in lethally irradiated (psi rays) and in unirradiated mice, unimmunized with sheep's red cells. This increase was connected with the stimulation of proliferative processes in the recipient by the polysaccharide.