[Relationship between metabolic changes in regional blood and tissues in ischemia of the extremities]. / Sootnoshenie mezhdu metabolicheskimi izmeneniiami v regionarnoi krovi i tkaniiakh pri ishemii konechnosti.

The authors examined 56 patients with obliterating diseases (OD) of arteries of the lower extremities and conducted experiments on 97 male albino rats. In patients with OD the lactate content in the regional venous blood of the involved extremity increases proportionally to the severity of ischemia. No essential changes occur in the concentration of ATP and glucose. In rats with transitory ischemia of the extremities the lactate level in venous blood increases in the absence of changes of the ATP and glucose content; reduced concentration of ATP and glycogen was encountered in the ischemic muscles of the extremities. The mechanisms and significance of the disorders of metabolic parameters in ischemia are discussed.

[Blood cyclic nucleotide content in acute regional ischemia of the extremities]. / Soderzhanie tsiklicheskikh nukleotidov v krovi pri ostroi regionarnoi ishemii konechnosti.

Fifty healthy males aged from 19 to 34 years were examined. Experiments were conducted on 30 male mice weighing 200-250 g. After 10- and 20-minute ischemia of the upper limb the concentration of cAMP and cGMP in its venous blood increases in direct proportion to the duration of ischemia. Increase of the level of cyclic nucleotides (CN) in the blood does not depend on hypersecretion of catecholamines. Increase of the CN level coincides in time with increase of blood CPK. The mechanisms of changes in the blood CN level in ischemia are discussed.

[Regional blood lactate level in arterial occlusive diseases]. / Issledovanie kontsentratsii laktata v regionarnoi krovi pri obliteriruiushchikh zabolevaniiakh arterii.

Fifty-seven patients with obliterating diseases of the lower limb arteries were examined. The concentration of lactate in the venous blood and the venous-arterial difference in the blood lactate level in the affected limb were found to be increased. A relationship between the marked character of these shifts and the severity of the ischemic syndrome was noted. The authors discuss the possibility of using the values of the lactate content in the regional blood as criteria for evaluating the efficacy of treatment and the prognosis of obliterating diseases of the lower limb arteries.