Publications by authors named "M Orita"
Nearly forty years have passed since the Chornobyl Nuclear Power Plant accident, which resulted in childhood and adolescent thyroid cancers increasing due to internal exposure to iodine-131. Therefore, the Fukushima Daiichi Nuclear Power Station accident, in 2011, raised serious anxiety about potential risks of thyroid cancers. Considering the causal relationship between thyroid cancer and the Chornobyl accident, radiation dose to the thyroid due to this accident should be considered carefully.
View Article and Find Full Text PDFFor over 12 years since the 2011 East Japan Earthquake, the decontamination of radioactive materials is still incomplete. Although evacuation orders had been lifted in ~15% of Futaba town, the site of the Fukushima Daiichi Nuclear Power Plant, by August 2022, anxiety regarding the effects of nuclear radiation persists among evacuees, and their intention to return (ITR) remains low. As of August 2023, only 90 residents lived there.
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- Argyrophilic grain disease (AGD) is linked to senile dementia, particularly cases where it is the sole pathological cause, also associated with parkinsonism.
- The study presents two autopsy cases of dementia with grains, highlighting distinct clinical features such as parkinsonism in one patient and pure amnestic dementia in another.
- Using cryo-electron microscopy, the researchers found a similar three-dimensional structure of tau protein in both cases and noted the presence of argyrophilic grains and tau structures in specific brain regions, suggesting a potential connection between AGD and parkinsonism.