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Michael A. O'Reilly, Ph.D.

Contact Information

Phone Numbers

Administrative: (585) 275-5948

Office: (585) 275-5948

Research Labs

O'Reilly Lab

Lab: (585) 275-1450

Lab: (585) 273-4831

Lab: (585) 273-3118

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Faculty Appointments



The O'Reilly lab consists of an interactive group of senior scientists, graduate students, technicians, and undergraduate scholars interested in understanding how the oxygen environment at birth influences children's health and disease. Premature exposure to oxygen is a major risk factor for neonatal lung disease and can cause bronchopulmonary dysplasia (BPD), a chronic form of lung disease frequently seen in preterm infants with very low birth weight. While better clinical care has reduced mortality, children born prematurely are at risk for having reduced lung function, increased airway wheezing, increased severity of pulmonary morbidity following a respiratory viral infection, and development of pulmonary hypertension. Hence, there is an urgent need to better understand how early-life exposure to oxygen and failure to gain weight adversely affects health of children born preterm. Using the mouse as a model system, our studies are focused on defining how the oxygen environment at birth influences growth and differentiation of progenitor cells critical for development and regeneration of the cardiopulmonary system. We also investigate how oxygen-induced damage to mitochondrial and nuclear genomes activates molecular pathways that control whether oxidized cells live or die. We then collaborate with physicians who study health outcomes and treat children born prematurely. By integrating research findings in cells, mice, and humans, we hope to ultimately identify therapeutic opportunities for improving the long-term health of children born prematurely.



BS | SUNY at Stony Brook

PhD | University of Cincinnati
Developmental Biology

Post-doctoral Training & Residency

1993 - 1995
NRC Fellow, Lab. Mamm. Genes and Develop., NICHD, NIH Dr. Heiner Westphal

1992 - 1993
Senior Staff Fellow, Laboratory of Chemoprevention, NCI, NIH

1989 - 1992
Staff Fellow, Laboratory of Chemoprevention, NCI, NIH Drs. Michael B. Sporn and Anita B. Roberts

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Ruth A. Lawrence Academic Faculty Service Award
Sponsor: Department of Pediatrics

2004 - 2008
Dean's Incentive Award
Location: University of Rochester Research

1993 - 1995
National Research Council
Sponsor: NICHD, NIH Research

1988 - 1989
Albert B. Ryan
Location: University of Cincinnati Ph.D Studies

1986 - 1988
NIH Training Grant
Location: University of Cincinnati

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Journal Articles

Morris-Schaffer K, Sobolewski M, Allen JL, Marvin E, Yee M, Arora M, O'Reilly MA, Cory-Slechta DA. "Effect of neonatal hyperoxia followed by concentrated ambient ultrafine particle exposure on cumulative learning in C57Bl/6J mice." Neurotoxicology.. 2018 Jul 0; 67:234-244. Epub 2018 Jun 18.

Yee M, Cohen ED, Domm W, Porter GA, McDavid AN, O'Reilly MA. "Neonatal hyperoxia depletes pulmonary vein cardiomyocytes in adult mice via mitochondrial oxidation." American journal of physiology. Lung cellular and molecular physiology.. 2018 May 1; 314(5):L846-L859. Epub 2018 Jan 18.

Morris-Schaffer K, Sobolewski M, Welle K, Conrad K, Yee M, O'Reilly MA, Cory-Slechta DA. "Cognitive flexibility deficits in male mice exposed to neonatal hyperoxia followed by concentrated ambient ultrafine particles." Neurotoxicology and teratology.. 2018 70:51-59. Epub 2018 Oct 11.

Books & Chapters

Chapter Title: Perinatal disruptions of lung development: Mechanisms and implications for chronic lung diseases.
Book Title: Lung Development, Clinical Correlates and Technologies for the Future
Author List: O'Reilly, MA.
Edited By: Whitsett J, Jobe A, and Abman, S
Published By: New York, Cambridge University Press 2015

Chapter Title: The impact of DNA damage on epithelial cell maintenance of the lung.
Book Title: Mitochondrial Function in Lung Health and Disease.
Author List: Kalifa L and O'Reilly MA.
Edited By: Natargajan V and Parinandi NL
Published By: Springer Science+Business Media 2014

Chapter Title: Cell and Animal Models of Lung Injury
Book Title: Lung Injury: Mechanisms, Pathophysiology, and Therapy
Author List: Finkelstein JN, O'Reilly MA, Holm BA, Chess PC, Notter RH
Published By: Marcel Dekker 2005 in New York, NY




Many 'Adult' Diseases Trace Back to Baby's Earliest Days