Sleep characteristics, chronotype and winter depression in 10-20-year-olds in northern European Russia.

The purpose of this work was to examine the relationships between geographical coordinates and the prevalence of winter depression (SADW ), and to compare the sleep characteristics and chronotype of youths with and without SADW . We conducted a cross-sectional study of self-reported sleep characteristics, chronotype and winter depression in northern European Russia. Two questionnaires, the Munich Chronotype Questionnaire (MCTQ) and the Seasonal Pattern Assessment Questionnaire (SPAQ), were administered to a total of 3435 adolescents aged 10-20 years (1517 males and 1918 females).

Impact of perinatal photoperiod on the chronotype of 11- to 18-year-olds in northern European Russia.

The study investigates the effect of the month of birth and ambient light conditions at birth on sleep length and chronotype among residents of high latitudes. The authors surveyed 1172 persons (609 girls, 563 boys) age 11 to 18 yrs living in five villages and four towns located between 59.5°N and 67.

The antiplatelet effect of atorvastatin in patients with acute coronary syndrome depends on the hs-CRP level.

Background: In data we published earlier, there is a correlation between platelet aggregation in patients with acute coronary syndrome (ACS) who are receiving aspirin and elevated hsCRP-level. We suggested that antiplatelet action of statins, which are known to lower hsCRP-levels, could be especially pronounced in patients with high levels of hsCRP.

Methods And Results: 54 patients with ACS without ST-segment elevation were included in this study.