Loyola University Chicago

Marcella Niehoff School of Nursing

Faculty and Staff

Mary Byrn, RN, PhD

Title/s:  Assistant Professor

Office #:  BVM Hall, Room 915, LSC

Phone: 773.508.8973



BSN 2002 Hope College
PhD 2011 Loyola University Chicago

Teaching Interests

Courses Taught, 2015-2016

GNUR 207: Individual, Family, Community, Wellness and Health
GNUR 360: Research
MCN 273: Family Health Patterns

Research/Scholarly Interests and Selected Publications

My research interests include adults with diabetes.  I have worked on a number of studies examining health and quality of life of women in with diabetes.  In my dissertation work, I investigated the relationship between depressive symptoms and women diagnosed with gestational diabetes.  In this cross-sectional study, pregnant women with and without depressive symptoms participated. Findings indicated that previous history of depression was a significant predictor of gestational diabetes.  Most recently, my research is examining the impact of vitamin D on cognition in both men and women with type 2 diabetes (University of Chicago DRTC, NIH P30 DK020595, LU #20688031815, Think-D study).  This pilot study is testing the benefit of vitamin D supplementation in persons with type 2 diabetes who have symptoms of cognitive impairment but are not depressed (as depression is a confounder for cognitive impairment).

Byrn, M., & Penckofer, S. (2015). The relationship between gestational diabetes and antenatal depression. JOGNN, 44, 246-255

Byrn, M.A. & Penckofer, S. (2013). Antenatal depression and gestational diabetes: A review of maternal and fetal outcomes. Nursing for Women's Health, 17 (1), 22-33.

Penckofer, S., Byrn, M., Mumby, P., Ferrans, C.  (2011).  Improving Subject Recruitment, Retention, and Participation in Research Through Peplau’s Theory of Interpersonal Relations.  Nursing Science Quarterly, 24: 146-151

Penckofer, S., Kouba, J., & Byrn, M.  (2010).  Vitamin D and depression: Where is all the sunshine?  Issues in Mental Health Nursing, 31: 385-393.

Penckofer, S., Ferrans, C., Mumby, P., Byrn, M., Emanuele, M.A., Harrison, P., Durazo-Arvizu, R., & Lustman, P.  (2012).  A psychoeducational intervention (SWEEP) for depressed women with diabetes.  Annals of Behavioral Medicine, 44(2), 192-206.

Professional & Community Affiliations

  • Sigma Theta Tau
  • Midwest Nursing Research Society
  • Association of Women’s Health, Obstetric, and Neonatal Nursing
  • Alpha Sigma Nu, Honor’s Society