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Related Experiment Video

Updated: Feb 5, 2026

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Generation of a Mouse Spontaneous Autoimmune Thyroiditis Model

Published on: March 17, 2023

THYROID DISEASES AMONG ATOMIC BOMB SURVIVORS.

Misa Imaizumi¹, Kyoji Furukawa², Waka Ohishi³

¹Department of Nagasaki Clinical Studies, Radiation Effects Research Foundation, 1-8-6 Nakagawa, Nagasaki, Japan.

Radiation Protection Dosimetry

|August 31, 2018

Summary

Radiation exposure in childhood may increase thyroid cancer risk for over 50 years. While thyroid nodules risk increases, thyroid dysfunction and autoimmunity risks are not apparent decades after exposure.

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Area of Science:

Epidemiology
Radiation Health Effects
Thyroid Disease

Background:

Atomic bomb survivor studies are crucial for understanding radiation's health impacts.
Previous research indicates a potential long-term increased risk of thyroid cancer following childhood radiation exposure.

Purpose of the Study:

To analyze the long-term effects of radiation exposure on thyroid cancer and non-cancerous thyroid diseases in atomic bomb survivors.
To investigate the persistence of radiation-induced thyroid health risks over several decades.

Main Methods:

Analysis of epidemiological data from Hiroshima and Nagasaki atomic bomb survivors.
Review of cross-sectional studies, including recent data on childhood exposures.
Examination of risks for thyroid cancer, thyroid nodules, thyroid dysfunction, and autoimmunity.

Main Results:

An increased risk of thyroid cancer associated with childhood exposure may persist for over 50 years.
Cross-sectional studies suggest an elevated risk of thyroid nodules after radiation exposure.
No apparent increased risk of thyroid dysfunction or autoimmunity was observed decades post-exposure.

Conclusions:

Radiation exposure, particularly in childhood, can lead to a sustained increase in thyroid cancer risk.
While thyroid nodule risk is elevated, other thyroid functions and autoimmune conditions appear less affected long-term.
Further longitudinal studies are essential to fully elucidate radiation's impact on thyroid health and function.