Preetha Rajaraman,
Vice Chair/Executive Director

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Dr. Preetha Rajaraman currently serves as Vice Chair and Executive Director at the Radiation Effects Research Foundation. She has more than 25 years of experience in research and international science policy.

Following receipt of her Ph.D. in Epidemiology from the Johns Hopkins Bloomberg School of Public Health (Baltimore, USA), Dr. Rajaraman joined the Radiation Epidemiology Branch at the U.S. National Cancer Institute, where her research focused on the interaction of environmental and genetic factors in cancer risk. She co-led the U.S. Radiologic Technologists Study, an occupational cohort of more than 100,000 technologists exposed to low-to-moderate doses of fractionated radiation, and also examined cancer risk following early life exposure to radiation in diagnostic and therapeutic settings. In addition to her work on radiation, Dr. Rajaraman designed and led one of the first genome-wide association studies of brain tumors, and worked closely with international collaborators to design, analyze, and publish the first large genome-wide association study of gallbladder cancer, which identified several new risk loci. Dr. Rajaraman’s subsequent work as South Asia Director at the National Cancer Institute’s Center for Global Health leading the development, oversight, and evaluation of regional programs for cancer research and training was recognized by the NCI Director’s Award for exceptional leadership in marshaling trans-NCI collaboration to foster cooperation in cancer research.

Most recently, as U.S. Health Attaché and Regional Representative for South Asia, Dr. Rajaraman was responsible for in-country representation, monitoring and coordination of the research, program, and policy interests of the U.S. Department of Health and Human Services and its agencies, including the National Institutes of Health, the Centers for Disease Control and Prevention, and the Food and Drug Administration. In this role she coordinated key aspects of the regional COVID-19 pandemic response, finalized a variety of agreements advancing joint biomedical research, and implemented high-level health initiatives at multilateral fora including the G-20, QUAD, and the World Health Assembly.

Dr. Rajaraman is currently an expert member of Committee 1 (Biological Effects) of the International Commission on Radiological Protection and has served on advisory committees for the International Brain Tumor Epidemiology Consortium, the U.S. Childhood Cancer Survivor Study, the World Health Organization, The Lancet Oncology, and the United States–India Educational Foundation program.

Selected Publications

The International Collaboration for Research methods Development in Oncology (CReDO) workshops: shaping the future of global oncology research. Ranganathan P, Chinnaswamy G, Sengar M, …, Rajaraman P, …, Trimble E, Badwe RA, Pramesh CS; National Cancer Grid of India. Lancet Oncol. 2021
The Role of Gallstones in Gallbladder Cancer in India: A Mendelian Randomization Study. Mhatre S, Richmond RC, Chatterjee N, Rajaraman P, …, Davey Smith G, Relton CL, Dikshit RP. Cancer Epidemiol Biomarkers Prev. 2021
Radiation-Related Risk of Cancers of the Upper Digestive Tract among Japanese Atomic Bomb Survivors. Sakata R, Preston DL, Brenner AV, Sugiyama H, Grant EJ, Rajaraman P, Sadakane A, Utada M, French B, Cahoon EK, Mabuchi K, Ozasa K. Radiat Res. 2019
Considerations on the use of the terms radiosensitivity and radiosusceptibility. Wojcik A, Bouffler S, Hauptmann M, Rajaraman P. J Radiol Prot. 2018
Human individual radiation sensitivity and prospects for prediction. Rajaraman P, Hauptmann M, Bouffler S, Wojcik A. Ann ICRP. 2018
Genome-Wide Association Study to Identify Susceptibility Loci That Modify Radiation-Related Risk for Breast Cancer After Childhood Cancer. Morton LM, Sampson JN, Armstrong GT, …, Rajaraman P, Fraumeni JF Jr, Bhatia S, Chanock SJ, Tucker MA, Robison LL. J Natl Cancer Inst. 2017
Common genetic variation and risk of gallbladder cancer in India: a case-control genome-wide association study. Mhatre S, Wang Z, Nagrani R, Badwe R, Chiplunkar S, Mittal B, Yadav S, Zhang H, Chung CC, Patil P, Chanock S, Dikshit R, Chatterjee N, Rajaraman P. Lancet Oncol. 2017
Occupational Radiation Exposure and Deaths from Malignant Intracranial Neoplasms of the Brain and CNS in U.S. Radiologic Technologists, 1983-2012. Kitahara CM, Linet MS, Balter S, Miller DL, Rajaraman P, Cahoon EK, Velazquez-Kronen R, Simon SL, Little MP, Doody MM, Alexander BH, Preston DL. AJR Am J Roentgenol. 2017
Genome-wide association study of glioma subtypes identifies specific differences in genetic susceptibility to glioblastoma and non-glioblastoma tumors. Melin BS, Barnholtz-Sloan JS, Wrensch MR, …, Rajaraman P, …, Jenkins RB, Houlston RS, Bondy ML. Nat Genet. 2017
Stomach Cancer Following Hodgkin Lymphoma, Testicular Cancer and Cervical Cancer: A Pooled Analysis of Three International Studies with a Focus on Radiation Effects. Gilbert ES, Curtis RE, Hauptmann M, …, Rajaraman P,…, Travis LB, Morton LM, van Leeuwen FE. Radiat Res. 2017
Increased pancreatic cancer risk following radiotherapy for testicular cancer. Hauptmann M, Børge Johannesen T, Gilbert ES, Stovall M, van Leeuwen FE, Rajaraman P, …, Morton LM, Fossa SD, Travis LB. Br J Cancer. 2016
Cancer Risks in U.S. Radiologic Technologists Working With Fluoroscopically Guided Interventional Procedures, 1994-2008. Rajaraman P, Doody MM, Yu CL, Preston DL, Miller JS, Sigurdson AJ, Freedman DM, Alexander BH, Little MP, Miller DL, Linet MS. AJR Am J Roentgenol. 2016
Incidence and mortality risks for circulatory diseases in US radiologic technologists who worked with fluoroscopically guided interventional procedures, 1994-2008. Rajaraman P, Doody MM, Yu CL, Preston DL, Miller JS, Sigurdson AJ, Freedman DM, Alexander BH, Little MP, Miller DL, Linet MS. Occup Environ Med. 2016
Breast cancer risk and protracted low-to-moderate dose occupational radiation exposure in the US Radiologic Technologists Cohort, 1983-2008. Preston DL, Kitahara CM, Freedman DM, Sigurdson AJ, Simon SL, Little MP, Cahoon EK, Rajaraman P, Miller JS, Alexander BH, Doody MM, Linet MS. Br J Cancer. 2016
Increased pancreatic cancer risk following radiotherapy for testicular cancer. Hauptmann M, Børge Johannesen T, Gilbert ES, Stovall M, van Leeuwen FE, Rajaraman P, Smith SA, Weathers RE, Aleman BM, Andersson M, Curtis RE, Dores GM, Fraumeni JF Jr, Hall P, Holowaty EJ, Joensuu H, Kaijser M, Kleinerman RA, Langmark F, Lynch CF, Pukkala E, Storm HH, Vaalavirta L, van den Belt-Dusebout AW, Morton LM, Fossa SD, Travis LB. Br J Cancer. 2016
Recommendations for screening and early detection of common cancers in India. Rajaraman P, Anderson BO, Basu P, …, Srivastava A, Trimble E, Mehrotra R. Lancet Oncol. 2015
A report from the 2013 international symposium: the evaluation of the effects of low-dose radiation exposure in the life span study of atomic bomb survivors and other similar studies. Grant EJ, Ozasa K, Ban N, de González AB, Cologne J, Cullings HM, Doi K, Furukawa K, Imaoka T, Kodama K, Nakamura N, Niwa O, Preston DL, Rajaraman P, Sadakane A, Saigusa S, Sakata R, Sobue T, Sugiyama H, Ullrich R, Wakeford R, Yasumura S, Milder CM, Shore RE. Health Phys. 2015
Genome-wide association study of glioma and meta-analysis. Rajaraman P, Melin BS, Wang Z, …, Fraumeni JF Jr, Chatterjee N, Hartge P, Chanock SJ. Hum Genet. 2012
Radiation exposure from CT scans in childhood and subsequent risk of leukaemia and brain tumours: a retrospective cohort study. Pearce MS, Salotti JA, Little MP, McHugh K, Lee C, Kim KP, Howe NL, Ronckers CM, Rajaraman P, Sir Craft AW, Parker L, Berrington de González A. Lancet. 2012
Early life exposure to diagnostic radiation and ultrasound scans and risk of childhood cancer: case-control study. Rajaraman P, Simpson J, Neta G, Berrington de Gonzalez A, Ansell P, Linet MS, Ron E, Roman E. BMJ. 2011