1. Ru Y, Pressman EK, Cooper EM, Guillet R, Katzman PJ, Kent TR, Bacak SJ, O'Brien KO. Iron deficiency and anemia are prevalent in women with multiple gestations. Am J Clin Nutr. 2016 Oct;104(4):1052-1060. Epub 2016 Aug 31.
  2. Layden AJ, O'Brien KO, Pressman EK, Cooper EM, Kent TR, Finkelstein JL. Vitamin B12 and placental expression of transcobalamin in pregnant adolescents. Placenta. 2016 Sep;45:1-7. doi: 10.1016/j.placenta.2016.06.011. Epub 2016 Jun 27.
  3. Akoh CC, Pressman EK, Cooper E, Queenan RA, Pillittere J, O'Brien KO. Prevalence and Risk Factors for Infections in a Pregnant Adolescent Population. J Pediatr Adolesc Gynecol. 2017 Feb;30(1):71-75. doi: 10.1016/j.jpag.2016.08.001. Epub 2016 Aug 10.
  4. Best CM, Pressman EK, Cao C, Cooper E, Guillet R, Yost OL, Galati J, Kent TR, O'Brien KO. Maternal iron status during pregnancy compared with neonatal iron status better predicts placental iron transporter expression in humans. FASEB J. 2016 Oct;30(10):3541-3550. Epub 2016 Jul 11.
  5. Ware NA, Oni L, O'Brien KO, Abrams SA, Rees L. The dual-tracer stable isotope method to measure calcium absorption in children on dialysis: a new use for an old technique. Pediatr Nephrol. 2016 Oct;31(10):1713-4. doi: 10.1007/s00467-016-3435-0. Epub 2016 Jun 25. No abstract available.
  6. Kothapalli KS, Ye K, Gadgil MS, Carlson SE, O'Brien KO, Zhang JY, Park HG, Ojukwu K, Zou J, Hyon SS, Joshi KS, Gu Z, Keinan A, Brenna JT. Positive Selection on a Regulatory Insertion-Deletion Polymorphism in FADS2 Influences Apparent Endogenous Synthesis of Arachidonic Acid. Mol Biol Evol. 2016 Jul;33(7):1726-39. doi: 10.1093/molbev/msw049. Epub 2016 Mar 29.
  7. Whisner CM, Bruening M, O'Brien KO. A Brief Survey of Dietary Beliefs and Behaviors of Pregnant Adolescents. J Pediatr Adolesc Gynecol. 2016 Oct;29(5):476-81. doi: 10.1016/j.jpag.2016.03.002. Epub 2016 Mar 16.
  8. Omotayo MO, Dickin KL, O'Brien KO, Neufeld LM, De Regil LM, Stoltzfus RJ. Calcium Supplementation to Prevent Preeclampsia: Translating Guidelines into Practice in Low-Income Countries. Adv Nutr. 2016 Mar 15;7(2):275-8. doi: 10.3945/an.115.010736. Print 2016 Mar. Review.
  9. Thomas CE, Guillet R, Queenan RA, Cooper EM, Kent TR, Pressman EK, Vermeylen FM, Roberson MS, O'Brien KO. Vitamin D status is inversely associated with anemia and serum erythropoietin during pregnancy. Am J Clin Nutr. 2015 Nov;102(5):1088-95. doi: 10.3945/ajcn.115.116756. Epub 2015 Oct 7.
  10. Cao C, Pressman EK, Cooper EM, Guillet R, Westerman M, O'Brien KO. Prepregnancy Body Mass Index and Gestational Weight Gain Have No Negative Impact on Maternal or Neonatal Iron Status. Reprod Sci. 2016 May;23(5):613-22. doi: 10.1177/1933719115607976. Epub 2015 Sep 29.
  11. Whisner CM, Young BE, Witter FR, Harris ZL, Queenan RA, Cooper EM, O'Brien KO. Reductions in Heel Bone Quality Across Gestation Are Attenuated in Pregnant Adolescents With Higher Prepregnancy Weight and Greater Increases in PTH Across Gestation. J Bone Miner Res. 2015 Oct;30(10):1942. doi: 10.1002/jbmr.2571. Epub 2015 Jul 14. No abstract available.
  12. Lee S, Guillet R, Cooper EM, Westerman M, Orlando M, Kent T, Pressman E, O'Brien KO. Prevalence of anemia and associations between neonatal iron status, hepcidin, and maternal iron status among neonates born to pregnant adolescents. Pediatr Res. 2016 Jan;79(1-1):42-8. doi: 10.1038/pr.2015.183. Epub 2015 Sep 18.
  13. DellaValle DM, Glahn RP, Shaff JE, O'Brien KO. Iron Absorption from an Intrinsically Labeled Lentil Meal Is Low but Upregulated in Women with Poor Iron Status. J Nutr. 2015 Oct;145(10):2253-7. doi: 10.3945/jn.115.217273. Epub 2015 Sep 2.
  14. Ye K, Cao C, Lin X, O'Brien KO , Gu Z. Natural selection on HFE in Asian populations contributes to enhanced non-heme iron absorption. BMC Genet . 2015 Jun 10;16:61. doi: 10.1186/s12863-015-0223-y.
  15. Sirichkwal PP, Kamchansuppaisn A, Akoh CC, Kriengsinyos W, Charoenkiatkul S, O'Brien KO. Vitamin D status is positively associated with calcium absorption among postmenopausal thai women with low calcium intakes. J Nutr. 2015 May; 145(5):990-5. doi: 10.3945/jn.114.207290. Epub 2015 Mar 25.
  16. Finkelstein JL , Pressman EK , Cooper EM , Kent TR , Bar HY , O'Brien KO . Vitamin D Status Affects Serum Metabolomic Profiles in Pregnant Adolescents. Reprod Sci. 2015 Jun;22(6):685-95. doi: 10.1177/1933719114556477. Epub 2014 Nov 2.
  17. Whisner CM , Young BE , Pressman EK , Queenan RA ,Cooper EM ,O'Brien KO, Maternal diet but not gestational weight gain predicts central adiposity accretion in utero among pregnant adolescents. Int J Obes (Lond). 2015 Apr;39(4):565-70. doi: 10.1038/ijo.2014.202. Epub 2014 Dec 3
  18. Whisner CM , Young BE , Witter FR , Harris ZL , Queenan RA , Cooper EM , O'Brien KO . Reductions in heel bone quality across gestation are attenuated in pregnant adolescents with higher prepregnancy weight and greater increases in PTH across gestation. J Bone Miner Res. 2014 Sep;29(9):2109-17. doi: 10.1002/jbmr.2233
  19. Lumish RA , Young SL , Lee S , Cooper E , Pressman E , Guillet R , O'Brien KO . Gestational iron deficiency is associated with pica behaviors in adolescents. J Nutr. 2014 Oct;144(10):1533-9. doi: 10.3945/jn.114.192070. Epub 2014 Aug 13
  20. Cao Chang, O'Brien KO. Pregnancy and Iron Homeostatis; An Update . Nutr Rev 2013; 71(1):35-51
  21. Cucchi, CE, Gaffney-Stomberg E, Sub B, O'Brien KO, Kerstetter JE, Insogna KL. Increasing Dietary Protein Augments Intestinal Iron Transporter Expression and Improves Iron Absorption in Rats . In press 2013, FASDB.
  22. O'Brien KO, Donangelo CM, Ritchie LC, Gildengorin G, Abrams SA, King JC. Serum 1,25-dihydroxyvitamin D and calcium intake affect rates of bone calcium deposition during pregnancy and the early postpartum period. Am J Clin Nutr. 2012; 96(1):64-72.
  23. Young BE, McNanley TJ, Cooper EM, McIntyre AW, Witter F, Harris ZL, O'Brien KO. Maternal Vitamin D Status and Calcium Intake Interact to Impact Fetal Skeletal Growth In-Utero in Pregnant Adolescents . Am J Clin Nutr 2012; 95(5):1103-12.
  24. Young MF, Griffin I, Pressman E, McIntryre A, Copper E, McNanley T, Harris L, Westerman M, O'Brien KO. Maternal Hepcidin is Associated with Placental Transfer of Iron Derived from Dietary Heme and Non-heme Sources . J Nutr; 2012; 142(1):33-39.
  25. Young BE, McNanley T, Cooper B, McIntryre A, Witter F, Harris ZL, O'Brien KO. Vitamin D Insufficiency is Prevalent and Vitamin D is Inversely Associated with PTCH and Calcitriol in Pregnant Adolescents . J Bone and Min Res 2011; Sep 28. Doi: 10.1002/jbmr.526. [Epub ahead of print].
  26. Essley BV, McNanley T, Cooper EM, McIntryre AW, Witter F, Harris ZL, O'Brien KO. Osteoprotegerin Differs by Race and is Related to Infant Birth Weight Z-score in Pregant Adolescents . J Developmental Origins of Health and Disease 2011; 2(5):272-9.
  27. Jaacks LM, Young MF, Essley BV, McNanley TJ, Copper EM, Pressman EK, McIntyre AW, Orlando MS, Ankowitz JL, Guillet R, O'Brien KO. Expression of the Heme Transporter, Feline Leukemia Virus Subgroup C Receptor (FLVCR) is Related to Maternal Iron Status in Pregnant Adolescents . J Nutr; 2011 Jul 141(7):1267-72
  28. Young MF, Griffin I, Pressman E, McIntyre A, Cooper E, McNanley T, Harris L, Westerman M, O'Brien KO. Impact of Maternal Iron Status on Placental Transferrin Receptor Expression. Placenta 2010; Nov 31(11): 1010-4. Epub 2010 Sep 15.
  29. Wright MJ, Suillivan RR, Gaffney ED, Caseria DM, O'Brien KO, Proctor DD, Insogna KL, Kersetter JE. Short Term Effect of a Proton Pump Inhibitor on Calcium Absorption in Young Adults: a Randomized, Crossover Controlled Clinical Trial . J Bone Mineral Research 2010; 25(10): 2205-2211.
  30. Young MF, Griffin I, Pressman E, McIntyre A, Cooper E, McNanley T, Harris L, Westerman M, O'Brien KO. Utilization of iron from an animal-based iron source is greater than that of ferrous sulfate in pregnant and non-pregnant women . J Nutr 2010; 140:2162-6.

For a full list of Dr. O'Briens publications, visit PubMed


Also, check out our latest IAEA publication! It is now available online. Assessment of Iron Bioavailabilty in Humans Using Stable Iron Isotope Techniques.