Keio University · Medicine
Professor Toru Takebayashi's research lab focuses on epidemiological studies investigating the health effects of environmental and lifestyle factors, particularly the potential risks associated with mobile phone use and brain tumours. The lab employs advanced exposure assessment methods, such as SAR modeling, to explore the relationship between radiofrequency radiation and neurological diseases. Additionally, the lab examines the metabolic impacts of physical activity, linking lifestyle behaviors to biomarkers of metabolic health and chronic disease risk. Their work bridges environmental exposure science with preventive medicine, aiming to inform public health policy.
Figures are computed from collected data and may differ slightly.
In a case-control study in Japan of brain tumours in relation to mobile phone use, we used a novel approach for estimating the specific absorption rate (SAR) inside the tumour, taking account of spatial relationships between tumour localisation and intracranial radiofrequency distribution. Personal interviews were carried out with 88 patients with glioma, 132 with meningioma, and 102 with pituitary adenoma (322 cases in total), and with 683 individually matched controls. All maximal SAR values w
These results suggest that there is no significant increase in the risk of acoustic neuroma in association with mobile phone use in Japan.
Physical activity is related to various plasma metabolites, including known biomarkers for future insulin resistance or type 2 diabetes. These metabolites might potentially play a key role in the protective effects of higher physical activity and/or less sedentary behavior on non-communicable diseases.
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