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Chronoradiobiology Of Breast Cancer: The Time Is Now To Link Circadian Rhythm And Radiation Biology, Nicolas Nelson, Joseph Lombardo, Lauren Matlack, Alexandria Smith, Kamryn Hines, Wenyin Shi, Nicole L Simone Feb 2022

Chronoradiobiology Of Breast Cancer: The Time Is Now To Link Circadian Rhythm And Radiation Biology, Nicolas Nelson, Joseph Lombardo, Lauren Matlack, Alexandria Smith, Kamryn Hines, Wenyin Shi, Nicole L Simone

Department of Radiation Oncology Faculty Papers

Circadian disruption has been linked to cancer development, progression, and radiation response. Clinical evidence to date shows that circadian genetic variation and time of treatment affect radiation response and toxicity for women with breast cancer. At the molecular level, there is interplay between circadian clock regulators such as PER1, which mediates ATM and p53-mediated cell cycle gating and apoptosis. These molecular alterations may govern aggressive cancer phenotypes, outcomes, and radiation response. Exploiting the various circadian clock mechanisms may enhance the therapeutic index of radiation by decreasing toxicity, increasing disease control, and improving outcomes. We will review the body’s natural circadian …


Association Between Exposure To Radioactive Iodine After The Chernobyl Accident And Thyroid Volume In Belarus 10-15 Years Later, Ekaterina Chirikova, Robert J Mcconnell, Patrick O'Kane, Vasilina Yauseyenka, Mark P Little, Victor Minenko, Vladimir Drozdovitch, Ilya Veyalkin, Maureen Hatch, June M Chan, Chiung-Yu Huang, Kiyohiko Mabuchi, Elizabeth K Cahoon, Alexander Rozhko, Lydia B Zablotska Jan 2022

Association Between Exposure To Radioactive Iodine After The Chernobyl Accident And Thyroid Volume In Belarus 10-15 Years Later, Ekaterina Chirikova, Robert J Mcconnell, Patrick O'Kane, Vasilina Yauseyenka, Mark P Little, Victor Minenko, Vladimir Drozdovitch, Ilya Veyalkin, Maureen Hatch, June M Chan, Chiung-Yu Huang, Kiyohiko Mabuchi, Elizabeth K Cahoon, Alexander Rozhko, Lydia B Zablotska

Department of Radiology Faculty Papers

Background: While there is a robust literature on environmental exposure to iodine-131 (131I) in childhood and adolescence and the risk of thyroid cancer and benign nodules, little is known about its effects on thyroid volume.

Methods: To assess the effect of 131I dose to the thyroid on the volume of the thyroid gland, we examined the data from the baseline screening of the Belarusian-American Cohort Study of residents of Belarus who were exposed to the Chernobyl fallout at ages ≤18 years. Thyroid dose estimates were based on individual thyroid activity measurements made shortly after the accident and dosimetric data from …