[Investigation of muscle tone in patients with Parkinson's disease in unloading conditions].

Parkinson's disease (PD) is a progressive neurodegenerative disorder, ones of the main symptoms of which are hypertonicity and emergent difficulties during performance of stepping movements due to increased muscle stiffness. Biomechanical (stiffness) and electrophysiological (shorting reaction) characteristics of hip and shank muscles were examined in 25 patients with mild and moderate stages of PD (1 to 3 of Hoehn & Yahr Rating Scale, 61 +/- 9 years) and 22 age-matched healthy controls in unloading leg conditions during passive flexion/extension of hip, knee and ankle joints, as well as the changes of tonic state under levodopa influence. The data obtained were compared with similar findings of healthy subjects.

[Effect of trematoda infection and different concentrations of surface active agents onto physical and chemical characteristics of haemolymph of Planorbarius corneus (Mollusca: Pulmonata)].

Effect of trematod infection and different concentrations of detergent (20, 50, 80 mg/dm3) onto physical and chemical characteristics of haemolymph of Planorbarius corneus (content of Hb, density, active reaction, amount of Hb per unit of total mass and soft mass of the body) have been investigated. It was noted that all changes of named characteristics caused by detergent were more pronounced in infected mollusks.

[Effect of iron chloride (III) on hematological status of the Planorbarius corneus (Mollusca: Gastropoda: Bulinidae) in normal snails and during infection with trematode parthenites].

The effect of three ferric chloride concentrations (100, 200, 300 mg/l) on the acid-alkaline balance of haemolymph and haemoglobin content in Planorbarius corneus under normal conditions and in the case of infection with parthenites and larvae of Echinoparichium aconiatum was examined. In the medium with an effective concentration of ferric chloride, all snail specimens proved to have acidified haemolymph, by 40-50% in infected samples and 80-85% in uninfected ones. Statistically reliable differences in the haemoglobin content in the haemolymph of infected and uninfected specimens between the control and test media were absent, that proves a weak toxic effect of ferric ions on P.

[Effect of phenol and pesticides on the physicochemical properties of the hemolymph in fresh-water gastropod mollusks (Gastropoda, Pulmonata) infected by trematode parthenitae].

The effect of solutions of phenol (100, 250, 400 mg/l), copper sulfate, carbophos and bazudine (0.01, 0.1, 1.

[Changes in the electrocerebellogram and autonomic responses of mice to acceleration].

Nembutal narcotized white rats were exposed to + GZ accelerations of 10 g for 5 min. Changes in the frequency spectrum of the bioelectric spontaneous activity of the cerebellar cortex, respiration rate and heart rate were examined. A correlation between bioelectric reactions of the cerebellum and adaptive-compensatory responses of the cardiovascular and respiratory systems was established.