Dynamics of indicators of cadets' daily motor activity in different training years.

Objective: Aim: The aim is to investigate the dynamics of indicators of daily motor activity of cadets of higher educational institutions with specific learning environment in different training years.

Patients And Methods: Materials and Methods: The research involved 226 cadets of the National Academy of Internal Affairs in the first (n = 62), second (n = 56), third (n = 60), and fourth (n = 48) training years. We used the Framingham method which involves the calculation of the motor activity index to determine the daily time spent on cadets' motor activity and their daily energy expenditure.

Comparative Evaluation of the Radioprotective Properties of Copper Chlorophyllin, Trolox, and Indralin in an Experiment on Mice.

The radioprotective properties of copper chlorophyllin (100 and 150 μg/g), the standard antioxidant trolox (100 and 200 μg/g), and the standard radioprotector indralin (100 and 150 μg/g) were compared in male ICR mice (CD-1) subjected to whole-body irradiation (X-ray radiation) in doses of 6, 6.5, and 6.75 Gy.

Assessment of the Acute Toxicity of Chlorophyllin and Trolox for the Possibility of Studying Their Radioprotective Properties.

The acute toxicity of chlorophyllin and trolox upon intraperitoneal injection of their solutions was studied in male ICR (CD-1) mice. The LD of chlorophyllin was found to be 633±37.2 μg/g body weight, which is lower than the LD of established radioprotectors.

Radioprotective Properties of Riboxin (Inosine) and Indralin under External Irradiation.

A comparative assessment of radioprotective properties of inosine nucleoside (riboxin) and recognized radioprotector indralin was carried out. We analyzed survival of male ICR CD-1 mice weighting 32.2±0.

DNA Damage in Splenocytes of Mice Exposed to Secondary Radiation Created by 650 MeV Protons Bombarding a Concrete Shielding Barrier.

The proportion of splenocytes with a high level of DNA double-strand breaks was determined in mice exposed to primary and secondary radiation created by bombarding of a concrete barrier (thickness 20, 40, and 80 cm) by 650 MeV protons. The proportion of splenocytes with a high level of DNA double-strand breaks was assessed by flow cytometric analysis of γH2AX and TUNEL cells. It is shown that concrete barrier can significantly reduce primary proton radiation; the severity of negative biological effects in mice irradiated in the center of the proton beam decreased with increasing the thickness of this barrier.