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Updated : May 18, 2018

Department of Epidemiology

Members

Keigo Saeki (Professor)
Kenji Obayashi (Associate Professor)
Yuki Yamagami(Assistant Professor)

Overview

Our primary interest includes the influence of environmental temperature and light exposure on biological rhythm and its long-term effect on disease incidence. 
In our community-based prospective cohort study, the HEIJO-KYO study, among 1127 elderly participants, we measure the indoor temperature, light exposure, physical activity, and food intake as important exposures, and investigate the associations with circadian biological rhythm parameters (e.g. ambulatory blood pressure, objective sleep quality, and melatonin excretion) and disease incidence such as obesity, diabetes, sleep disturbances, depressive symptoms, dementia, stroke, ischemic heart disease, and cancer. In another cohort study, the CHRONO study, including longer-term measurements for environmental exposure and circadian biological rhythm parameters, we focus on the time-dependent and variability analysis for these parameters.

 

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