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Susan Kay Murphy

Associate Professor Emeritus in Obstetrics and Gynecology
Obstetrics and Gynecology, Reproductive Sciences
Duke PO Box 90534, the Chesterfield Building, Durham, NC 27701
701 W. Main Street, Suite 510, Room 5140, Durham, NC 27701

Overview


Dr. Murphy is a tenured Associate Professor in the Department of Obstetrics and Gynecology and serves as Chief of the Division of Reproductive Sciences. As a molecular biologist with training in human epigenetics, her research interests are largely centered around the role of epigenetic modifications in health and disease. 

Dr. Murphy has ongoing projects on gynecologic malignancies, including approaches to eradicate ovarian cancer cells that survive chemotherapy and later give rise to recurrent disease. Dr. Murphy is actively involved in many collaborative projects relating to the Developmental Origins of Health and Disease (DOHaD).

Her lab is currently working on preconception environmental exposures in males, particularly on the impact of cannabis on the sperm epigenome and the potential heritability of these effects. They are also studying the epigenetic and health effects of in utero exposures, with primary focus on children from the Newborn Epigenetics STudy (NEST), a pregnancy cohort she co-founded who were recruited from central North Carolina between 2005 and 2011. Dr. Murphy and her colleagues continue to follow NEST children to determine relationships between prenatal exposures and later health outcomes.

Current Duke Appointments & Affiliations


Associate Professor Emeritus in Obstetrics and Gynecology · 2026 - Present Obstetrics and Gynecology, Reproductive Sciences, Obstetrics and Gynecology
Chief, Division of Reproductive Sciences in the Department of Obstetrics and Gynecology · 2017 - Present Obstetrics and Gynecology, Reproductive Sciences, Obstetrics and Gynecology
Associate Professor in Pathology · 2012 - Present Pathology, Clinical Science Departments
Associate Professor in the Division of Environmental Natural Sciences · 2025 - Present Environmental Natural Science, Nicholas School of the Environment
Member of the Duke Cancer Institute · 1998 - Present Duke Cancer Institute, Institutes and Centers

Recent News Items


Published November 28, 2022
Mom’s Dietary Fat Rewires Male And Female Brains Differently
Published September 22, 2021
Trying to Conceive? Stop Smoking Pot.
Published August 27, 2019
Gene Linked to Autism Undergoes Changes in Men’s Sperm After Pot Use

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Recent Scholarly Works


Differential methylation at novel putative imprinting control regions on chromosome 20 associated with childhood obesity.

Journal article Epigenetics · December 2026 DNA methylation may link early-life exposures to later obesity risk; however, most studies examine individual CpG sites using commercial arrays that cover < 5% of the genome and often overlook biologically relevant regulatory regions. Imprinting control re ... Full text Link to item Cite

Associations of Placental Oxidative Stress with Exposure to Gestational Air Pollution: Evidence from the UPSIDE Cohort.

Journal article Environ Res · September 15, 2026 BACKGROUND: Increased placental oxidative stress is frequently documented in pregnant women with adverse maternal outcomes such as preeclampsia. However, environmental determinants of placental oxidative stress remain poorly understood. OBJECTIVES: To dete ... Full text Link to item Cite

Differential Methylation at Novel Putative Imprinting Control Regions on Chromosome 20 Associated with Childhood Obesity.

Preprint · September 7, 2026 DNA methylation may link early-life exposures to later obesity risk; however, most studies examine individual CpG sites using commercial arrays that cover <5% of the genome and often overlook biologically-relevant regulatory regions. Imprinting control reg ... Full text Link to item Cite
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Recent Grants


Duke Women's Reproductive Health Research Scholars

Inst. Training Prgm or CMEMentor · Awarded by Eunice Kennedy Shriver National Institute of Child Health and Human Development · 2020 - 2030

Duke-NCCU Interdisciplinary Postdoctoral Training Program in Child Psychiatric and Neurodevelopmental Conditions Program (DN-IPT)

Inst. Training Prgm or CMEPreceptor · Awarded by National Institute of Mental Health · 2024 - 2029

Genomic Imprinting in the Development of NAFLD

ResearchCo Investigator · Awarded by National Institute of Diabetes and Digestive and Kidney Diseases · 2024 - 2028

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Education


Wake Forest University · 1998 Ph.D.
University of North Carolina, Charlotte · 1992 B.A.