Lewis E. Braverman, MD

Professor of Medicine


MD – Johns Hopkins School of Medicine

General field of research:


Affiliations other than medicine:

Evans Center for Interdisciplinary Biomedical Research
Section of Endocrinology, Diabetes, and Nutrition

Contact information:

88 East Newton Street, Evans 201
Phone: (617)-638 7211
Fax: (617)-638 7221


Research group information

Elizabeth Pearce, MD, MSc
Angela Leung, MD
Xuemei He, MD
Sam Pino


Thyroid; Iodine Perchlorate

Summary of research interest:

Research interests include the sufficiency of dietary iodine in the U.S., thyroid function in pregnancy and lactation, and the thyroid effects of exposure to environmental perchlorate and other potential endocrine disruptors.

Recent publications:

Leung A.M., E.N. Pearce, L.E. Braverman. 2009. Iodine content of prenatal multivitamins in the United States. N Engl J Med 360(9): 939-40. PMID: 19246372

Oken E., L.E. Braverman, D. Platek, M.L. Mitchell, S.L. Lee, E.N. Pearce. 2009. Neonatal thyroxine, maternal thyroid function, and child cognition. J Clin Endocrinol Metab 94(2): 497-503. PMID: 19033373

Leung A.M., E.N. Pearce, T. Hamilton, X. He, S. Pino, A. Merewood, L.E. Braverman. 2009. Colostrum iodine and perchlorate concentrations in Boston-area women: a cross-sectional study. Clin Endocrinol (Oxf) 70(2): 326-30. PMID: 18616704

Lee R.H., C.A. Spencer, J.H. Mestman, E.A. Miller, I. Petrovic, L.E. Braverman, T.M. Goodwin. 2009. Free T4 immunoassays are flawed during pregnancy. Am J Obstet Gynecol 200(3): 260.e1-6. PMID: 19114271

Rayburn W.F., A. Robinson, L.E. Braverman, X.M. He, S. Pino, M.L. Gargas, J.H. Kinzell. 2008 Iodide concentrations in matched maternal serum, cord serum, and amniotic fluid from preterm and term human pregnancies. Reprod Toxicol 25(1): 129-32. PMID: 18333297

Pearce E.N., E. Oken, M.W. Gillman, S.L. Lee, B. Magnani, D. Platek, L.E. Braverman. 2008. Association of first-trimester thyroid function test values with thyroperoxidase antibody status, smoking, and multivitamin use. Endocr Pract 14(1): 33-9. PMID: 18238739

Pearce E.N., A.M. Leung, B.C. Blount, H.R. Bazrafshan, X. He, S. Pino, L. Valentin-Blasini, L.E. Braverman. 2007. Breast milk iodine and perchlorate concentrations in lactating Boston-area women. J Clin Endocrinol Metab 92(5): 1673-7. PMID: 17311853

Braverman L.E., E.N. Pearce, X. He, S. Pino, M. Seeley, B. Beck, B. Magnani, B.C. Blount, A Firek. 2006. Effects of six months of daily low-dose perchlorate exposure on thyroid function in healthy volunteers. J Clin Endocrinol Metab 91(7): 2721-4. PMID: 16636123