Russia 2020: Zalata Olga Aleksandrovna

Delegate: Zalata Olga Aleksandrovna

Affiliations: Student of medical university Zhukova Anna

Short Bio: Associate professor, Department of Physiology. I study problems of high-level activity and state of elementary balance of human organism from 2003 years. Study sleep problems in medical students.

Activity: Sleep as well as any aspect of human life affected by the factors of our environment.
The purpose of the study was to determine the relationship between the content of chemical elements of the lanthanide series in the human body with the sleep characteristics of healthy students of different sexes. Lanthanides are substances that participate in the biological processes of the body, accumulating in the body in fairly small concentrations. These are lanthanum (La), cerium (Ce), neodymium (Nd), samarium (Sm), europium (Eu), terbium (Tb), ytterbium (Yb), lutetium (Lu), and hafnium (Hf). This group of chemical elements matches the very process of sleep. These are mysterious and one of the least studied among its “neighbors on the table”. The study group included 74 students of the Medical Academy (43 girls, 31 boys, 19.0±0.1 years). Hair samples were obtained by cutting in the basal zone of the occipital region from 3-5 places, in an amount of 5 gr. These elements contents in hair was assessed using instrumental neutron activation analysis with thermal neutron irradiation. Subjective characteristics of nighttime sleep quality were obtained using the Pittsburgh sleep Quality Index (PSQI) test. The Epworth daytime sleepiness scale (ESS) was used to analyze the level of daytime sleepiness. The level of sleepiness in part of the group of girls (P75=11) and boys (P75=10) was high, but did not differ significantly. A subjective assessment of the quality of sleep, including both time indicators and narrower qualitative characteristics of sleep (subjective sleep quality, sleep latency, sleep disorders, taking sleeping pills, daytime sleep dysfunction), allowed us to state that the state of night sleep of students of different sexes was satisfactory. The exception was the sleep efficiency index (K4), which was consistently high in two subgroups (Me=3; P25=3; P75=3), which makes it possible to suspect problems in non-compliance with the students ‘ waking and sleeping regime. The analysis of REE content in hair revealed a number of features of the respondents ‘ elemental status. Correlation analysis of REE content in students ‘ hair and sleep quality indicators revealed a number of relationships. The results of the study are shown in the images. Despite the low concentration and insufficiently studied physiological role in the human body, rare earth elements can mediate the processes occurring on the cell membranes of nerve cells. There is probably a sexual differentiation in the physiological significance of certain rare earth elements for the quality of sleep characteristics of healthy young people.

Location: Russia, Simferopol

Date of Activity: 29.11.2019

Submitted By: Zhukova Anna, Zalata Olga at II Student Scientific and Theoretical Conference “Topical Medicine”