[Effect of propranolol on the cardiac rhythm variability and the cardiac cycle phase structure in healthy volunteers].

In an acute pharmacological test in 13 healthy volunteers (24 +/- 4) years old effects were studied of propranolol, 40 mg/50 kg body mass, on the sympathovagal regulation and phase patterns of the cardiac cycle. The study was made with the aid of the computer electrocardiograph "Cardiolab 2000" at the height of the propranolol effect by standard methods. The state of the sympathovagal regulation was assessed by the heart's rhythm variability technique with respect to the spectrum lowfrequency and highfrequency ranges powers.

[The clinical picture of internal diseases in the light of immunology].

Clinical profiles of internal diseases are examined from the immunological standpoint together with the causes for creation by immunology of its own clinical base. It is shown that the approach common in immunology, based on the fundamental notions of the immunity system offers superior efficacy and should be recommended in dealing with internal diseases in a clinical setting.

[The characteristics of the clinical manifestations of chronic hepatitis and liver cirrhosis depending on the structure of the inflammatory infiltrate in the liver tissue].

A study is presented of 107 patients with chronic hepatitis and liver cirrhosis verified on the basis of morphological changes of the punctate obtained at echocontrol puncture liver biopsy. It was established that clinical manifestations of chronic hepatitis and liver cirrhosis are determined not only by their morphological forms, but also by the structure of the inflammatory infiltrate of the liver tissue. This is to be considered in evaluation of the severity of the disease course and differentiated treatment.

[Calcium and calcium-channel blockers in the healing of an experimental myocardial infarct].

It has been shown in experiments on 36 dogs with experimental myocardial infarction (MI) that the effect of calcium and blockers of calcium channels largely depends on the initial condition of reactivity and is realized via changes in lipid peroxidation (LPO). In MI, calcium enhances necrotic processes whereby aggravating disorders in its healing in case of high reactivity and returns them to normal, thus contributing to optimization of its healing in animals with low reactivity. Calcium channels blockers attenuate necrotic processes associated with MI and lead to its better healing in the presence of high reactivity and aggravate disorders in its healing in animals with low reactivity.

[Kinetics of myoglobin, creatine kinase and aspartate aminotransferase in uncomplicated and complicated forms of healing of experimental myocardial infarction].

It was demonstrated in experiments on 60 dogs that in hyporeactive myocardial infarction (MI) myoglobin (MG) concentration and the activity of creatine kinase (CK) and aspartate aminotransferase (ASAT) increase at a slower rate and reach maximum values later. In hyperreactive MI the rate of their increase and the time of attainment of maximum values are, respectively, greater and earlier than in normoreactive MI. The connection of MG, CK, and ASAT changes with reactivity allows them to be used in prognosticating MI healing.