Risk of eating disorders in university students: an international study in Hungary, Poland and Ukraine.

Objective: In this international study, the prevalence of Eating disorders (EDs) was determined among university students and identified associated demographic and behavioral factors predicting disorders using data from three European countries.

Methods: The survey was conducted in Hungary, Poland, and Ukraine in 2018. Registered full-time students completed an online anonymous questionnaire.

Ultrastructural liver changes in the experimental thyrotoxicosis.

Aim of the study is to evaluate ultrastructural changes of rat liver in experimental thyrotoxicosis. For the study, 36 male rats have been utilized, weighing approximately 150-190 g, which were divided into three groups: the first, control group (12 animals) was composed of healthy rats that received intragastric sodium chloride 0.9% solution, the second group (12 animals) - animals with experimental thyrotoxicosis, which received intragastric solution of L-thyroxine at the rate of 200 μg/kg for 2 weeks, and the third group (12 animals) - rats with experimental thyrotoxicosis, which received intragastric solution of L-thyroxine at the rate of 200 μg/kg for 4 weeks.