[Imbalance of microelements and vitamins in adolescents with diffuse nontoxic goiter and biliary dyskinesia].

The purpose of the present work was to study the level of microelements and vitamins in adolescents with diffuse nontoxic goiter. It has been shown that comorbid biliary dyskinesia leads to significant dysregulation of vitamin and mineral metabolism: the level of essential elements was decreased and the level of toxic elements was increased. Comorbid biliary dyskinesia in adolescents with diffuse nontoxic goiter was accompanied by a disbalance of vitamins. The changes found in micronutrients have sex differences.

[Predicting the development of vibration disease in coal miners exposed to local vibration combined with noise and dust]. / Prognozirovanie vibratsionnoi bolezni u gornorabochikhpri vozdeistvii lokal'noi vibratsii v sochetanii s shumom i pyl'iu.

The contributors proposed a differentiated diagnostic technique which included 10 most informative physiologic, anthropometric and biochemical+ indices to provide the most reliable data (95% reliability) on the adaptation and compensatory mechanisms under local vibration and in combination with noise and dust, and with due account of the individual sensitivity to local vibration. Testing of the technique demonstrated its high accuracy in determining the levels of "exhaustion", and of "the normal state" of the adaptation-compensatory mechanisms, and its applicability for vibration disease prognosis in individual++ workers, thus establishing corresponding in preventive medical examinations, occupational selection, preventive measures' planning, and in expert solutions requiring precise diagnostic techniques.

[State of the myocardium under the effect of high temperature of the environment (a clinico-experimental study)]. / Sostoianie miokarda pri vozdeistvii vysokoi temperatury okruzhaiushchei sredy (kliniko-éksperimental'noe issledovanie).

The labour conditions in heat treatment shops caused the sympathetic-adrenal system's tension which was preserved in the rehabilitation period and led to ECG functional shifts. The probable traces of IHD and myocardium hypoxia were 2.7 times as often as in the workers engaged in general shops. The cardiomyocytes' damages were proved by higher levels of creatine phosphokinase and lactate dehydrogenase in the blood of heat treatment shop workers.

[Changes in osmolarity of arterial blood in intensive muscle exercise]. / Izmenenie osmoliarnosti arterial'noi krovi pri intensivnoi myshechnoi rabote.

Acute experiments in cats demonstrated that a prolonged rhythmic muscle contraction of four limbs induced by stimulation of transected motor nerve endings is concomitant with an increase in osmotic pressure of arterial and venous blood plasma both in blood vessels and in the heart. The increase in osmolarity is parallel to an increase in the minute volume of the heart, a fall in the arterial pressure and an enhanced blood flow through the exercising limbs. Muscle hyperemia is related to osmotic shifts in venous blood and the increased minute volume of the heart--to those in arterial blood. The osmotic factor seems to be involved in adaptation of the cardiovascular system to intensive physical exercise.