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Elizabeth L. Barry, PhD

Associate Professor of Epidemiology
Associate Professor of Community and Family Medicine

Community and Family Medicine

Dartmouth College CECS, MS
University of Wisconsin-Madison, PhD
Grinnell College, BA

Norris Cotton Cancer Center
Quantitative Biomedical Sciences


Contact Information

One Medical Center Drive
Rubin Building, Room 857
HB 7927
Lebanon NH 03756

Office: Room 857
Phone: 603-646-5406

Professional Interests

Dr. Barry's current research focuses on the chemoprevention of cancer and the pharmacogenetics of chemopreventative agents. She is especially interested in the role and mechanism of action of anti-inflammatory drugs (such as aspirin) and nutritional supplements (such as calcium, vitamin D and folate) as chemopreventative agents for cancer. Using data from clinical trials, Dr. Barry is currently investigating how genetic polymorphisms may modify the effectiveness of some of these drugs in the prevention of colorectal adenomas. In addition to her interest in cancer, Dr. Barry has a long-standing interest in calcium and vitamin D regulation and their role in bone health and disease (osteoporosis).

Courses Taught

Medical Pharmacology (Calcium and Bone Pharmacology)

Selected Publications


Plasma Metabolomics Analysis of Aspirin Treatment and Risk of Colorectal Adenomas.
Barry EL, Fedirko V, Jin Y, Liu K, Mott LA, Peacock JL, Passarelli MN, Baron JA, Jones DP
Cancer Prev Res (Phila). 2022 Aug 1;15(8):521-531. doi: 10.1158/1940-6207.CAPR-21-0555.
PMID: 35653338

Predictors of Incident Serrated Polyps: Results from a Large Multicenter Clinical Trial.
Crockett SD, Barry EL, Mott LA, Snover DC, Wallace K, Baron JA
Cancer Epidemiol Biomarkers Prev. 2022 May 4;31(5):1058-1067. doi: 10.1158/1055-9965.EPI-21-1226.
PMID: 35506244

Association of demographic and health characteristics with circulating oxysterol concentrations.
Passarelli MN, McDonald JG, Thompson BM, Arega EA, Palys TJ, Rees JR, Barry EL, Baron JA
J Clin Lipidol. 2022 May-Jun;16(3):345-355. doi: 10.1016/j.jacl.2022.03.012. Epub 2022 Apr 9.
PMID: 35461764

Proliferation, apoptosis and their regulatory protein expression in colorectal adenomas and serrated lesions.
Figueiredo JC, Passarelli MN, Wei W, Ahnen DJ, Morris JS, Corley L, Mehta T, Bartley AN, McKeown-Eyssen G, Bresalier RS, Barry EL, Goel A, Hernandez Mesa G, Hamilton SR, Baron JA
PLoS One. 2021;16(11):e0258878. doi: 10.1371/journal.pone.0258878. Epub 2021 Nov 11.
PMID: 34762658

Circulating Sex Hormones and Risk of Colorectal Adenomas and Serrated Lesions in Men.
Figueiredo JC, Gresham G, Barry EL, Mott LA, Passarelli MN, Bradshaw PT, Anderson CW, Baron JA
Cancer Epidemiol Biomarkers Prev. 2022 Jan;31(1):293-295. doi: 10.1158/1055-9965.EPI-21-0713. Epub 2021 Nov 10.
PMID: 34758968

Oral Antibiotics and Risk of New Colorectal Adenomas During Surveillance Follow-up.
Passarelli MN, Mott LA, Barry EL, Rees JR, Baron JA
Cancer Epidemiol Biomarkers Prev. 2021 Oct;30(10):1974-1976. doi: 10.1158/1055-9965.EPI-21-0323. Epub 2021 Jul 21.
PMID: 34289971

Circulating 27-hydroxycholesterol and Risk of Colorectal Adenomas and Serrated Polyps.
Passarelli MN, Thompson BM, McDonald JG, Snover DC, Palys TJ, Rees JR, Barry EL, Baron JA
Cancer Prev Res (Phila). 2021 Apr;14(4):479-488. doi: 10.1158/1940-6207.CAPR-20-0414. Epub 2021 Jan 6.
PMID: 33408073

Effects of Supplemental Calcium and Vitamin D on Circulating Biomarkers of Gut Barrier Function in Patients with Colon Adenoma: A Randomized Clinical Trial.
Vermandere K, Bostick RM, Tran HQ, Gewirtz AT, Barry EL, Rutherford RE, Seabrook ME, Fedirko V
Cancer Prev Res (Phila). 2021 Mar;14(3):393-402. doi: 10.1158/1940-6207.CAPR-20-0461. Epub 2020 Nov 23.
PMID: 33229339

Risk of keratinocyte carcinomas with vitamin D and calcium supplementation: a secondary analysis of a randomized clinical trial.
Passarelli MN, Karagas MR, Mott LA, Rees JR, Barry EL, Baron JA
Am J Clin Nutr. 2020 Dec 10;112(6):1532-1539. doi: 10.1093/ajcn/nqaa267.
PMID: 33022713

Inflammation Modulation by Vitamin D and Calcium in the Morphologically Normal Colorectal Mucosa of Patients with Colorectal Adenoma in a Clinical Trial.
Gibbs DC, Fedirko V, Baron JA, Barry EL, Flanders WD, McCullough ML, Yacoub R, Raavi T, Rutherford RE, Seabrook ME, Bostick RM
Cancer Prev Res (Phila). 2021 Jan;14(1):65-76. doi: 10.1158/1940-6207.CAPR-20-0140. Epub 2020 Sep 11.
PMID: 32917645

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