Leif D. Nelin, MD

Leif Nelin

Contact Information


Dr. Nelin is the Division Chief of Neonatology at Nationwide Children's Hospital, Dean Jeffers Endowed Chair in Neonatology and a Professor of Pediatrics at The Ohio State University College of Medicine.

Clinically, Dr. Nelin is particularly interested in respiratory diseases, specifically in how pulmonary blood flow affects newborn respiratory diseases. Thus, persistent pulmonary hypertension of the newborn(PPHN) is one of his primary clinical interests. This has lead to his research interest in nitric oxide (NO), a potent vasodilator whose production is decreased in patients with PPHN. Utilizing cell culture techniques, isolated perfused lungs and animal preparations, Dr. Nelin studies the mechanisms that determine biological availability of the amino acid L-arginine on the ability of the lungs to produce NO and thereby regulate blood flow. The ultimate goal of this research is to understand the pathophysiology of PPHN and to develop new and specific therapies for the treatment of lung diseases that are characterized by alterations in NO production. A second area of research interest is the study of the developmental toxicology of inhaled NO.

Patient Care
Languages Spoken
  • English
  • Swedish
Academic and Clinical Areas
Awards, Honors & Organizations
  • Listed, Best Doctors in America

Date of Appointment at Nationwide Children’s Hospital: 05/23/2003

Board Certifications
  • Neonatal-Perinatal Medicine
Fellowship Baylor College of Medicine Date Completed: 06/30/1988
Residency Uppsala University Date Completed: 01/01/1986
Residency Baylor College of Medicine Date Completed: 06/30/1985
Internship Baylor College of Medicine Date Completed: 06/30/1983
Medical School University of South Florida Date Completed: 06/12/1982
Professional Experience

2010 - Present Division of Neonatology, The Ohio State University, Interim Chief

2007 - Present Center for Perinatal Research, The Research Institute at Nationwide Children's Hospital, Director

2002 - Present Department of Pediatrics, Ohio State University, Associate Professor

2006 - 2007 Center for Perinatal Research, Nationwide Children's Research Institute, Interim Director

2002 - 2006 Center for Developmental Pharmacology and Toxicology, Columbus Children's Research Institute, Investigator

1998 - 2002 Department of Pediatrics, University of New Mexico, Associate Professor

1994 - 1998 Department of Pediatrics, Medical College of Wisconsin, Associate Professor

1994 - 1998 Biomedical engineering Department, Marquette University, Adjunct Associate Professor

1989 - 1994 Department of Pediatrics, Medical College of Wisconsin, Assistant Professor

Baby Jack BPD

Breakthrough Research, Comprehensive BPD Care: Meet Dr. Nelin

Come inside the Comprehensive Center for Bronchopulmonary Dysplasia at Nationwide Children’s Hospital, where groundbreaking treatment protocols are greatly improving outcomes for even the smallest babies.