[Determination of the concentration of cytochrome c and its antibodies in the blood serum for the diagnosis and prognosis of complications in myocardial infarct patients].

EIA was used to demonstrate that the development of acute ischemia of the heart muscle progressing to necrosis is accompanied by an increase of the concentration of cytochrome c and antibodies against cytochrome c in the blood serum. As regards its specificity and sensitivity, the alteration in the antibody concentration is comparable with that in the myoglobin concentration but it is marked 1 to 3 hours earlier. The high level of antibodies against cytochrome c remaining unchanged for 2 to 3 days in myocardial infarction patients attests to the possibility of a complicated, often relapsing course of the disease.

[Several causes of complications of the surgical treatment of congenital hip dislocation].

The article is devoted to revealing of the causes of complications in children with congenital dislocation of the hip. 42 patients have undergone roentgenological, electrophysiological and neurological examinations; 32 of them had complications following surgical treatment of the dislocation of the hip. In the patients with complications disturbances in the structure of the lumbosacral section of the spine and neurological changes have been revealed.

[Characteristics of the structure and specificity of aspartyl- and valyl-tRNA-synthetases from muscle tissue of long-fasting rabbits].

Amino acid compositions of aspartyl- and valyl-tRNA synthetases from the muscles of long-fasting and normal rabbits were studied. Certain differences in amino acid content of fasted and normal rabbits were found. The possibility of incorrect aminoacylation was shown for the tRNA and amino-acyl-tRNA synthetases (ARS) from the muscles of experimental animals.

[Effect of cadmium ions on the rate of the tRNA aminoacylation reaction].

Cadmium ions are studied for their effect on the reaction rate of tRNA aminoacylation which was carried out using overall preparations of aminoacyl-tRNA-synthetases (ARSases) isolated from muscles of male rabbits and from three-day pea seedling roots. Cadmium in the concentration of 3 X 10(-5) M is established to accelerate the reaction rate two times as compared to the norm. Other bivalent cations of metals lack this ability.

[Isolation and purification of aspartyl- and valyl-tRNA-synthetases from muscles of normal and long-fasting rabbits. Structural characteristics and various kinetic parameters].

Highly purified aspartyl- and valyl-tRNA synthetases were obtained by 6-stage purification from normal and long-fasting rabbit's muscles. The molecular masses of the enzymes are (120 +/- 10) X 10(3). These proteins consist of two subunits (alpha 2-type) with (60 +/- 10) X X 10(3) molecular mass as determined by electrophoresis in SDS polyacrylamide gel.