This proposal describes a 5 year training program for the development of an academic career in the field pediatric heart failure. The principal investigator has MD, Ph.D. training, completed clinical residency training in Pediatrics and Genetics at the Children's Hospital of Philadelphia, and recently completed fellowship training in Pediatric Cardiology at the University of Colorado. During this period of clinical training she has developed an interest in the etiologies of heart failure (HF) in children, and initiated a research program under the primary mentorship of Dr. Brian Stauffer. The proposed research program will be the first to provide a thorough characterization of mitochondrial function and energy metabolism in pediatric idiopathic dilated cardiomyopathy (IDC). The project addresses a critical healthcare disparity in an under-represented and vulnerable population: children who have received little benefit from advances in adult HF treatments. The goal of the work is to impact outcomes of heart failure in children through identification of unique pathophysiologic processes in myocardium of children with IDC, allowing identification of dietary and pharmacologic therapies tailored to pediatric disease. The mentorship team provides a diverse training backgrounds and research expertise in cardiovascular biology. Each member is extramurally funded, a leader in the field of pediatric heart failure and cardiovascular physiology, and committed to their role as research mentors. Preliminary work has demonstrated evidence of changes in mitochondrial content, phospholipid content, and energy capacity in pediatric IDC. This research will focus on further characterization of mitochondrial dysfunction through analysis of stress and biogenesis responses and direct assay of the electron transport chain and mediators of fatty-acid influx for -oxidation using human tissue. Features of pediatric HF are recapitulated by treatment of a juvenile mouse with isoproterenol (ISO). This model is proposed as a model to further delineate the mechanisms of altered mitochondrial energy utilization in pediatric HF. The Department of Pediatrics at the University of Colorado Denver provides an ideal setting for training physician-scientists by incorporating expertise and resources from Clinical and Basic Science Departments throughout the University of Colorado System. This environment, with access to a large human heart tissue bank and the principal investigator's mentorship team are ideally suited to ensure the success of a novel area of research upon which a career in translational medicine can be constructed.

Public Health Relevance

Pediatric idiopathic dilated cardiomyopathy (IDC) is the leading indication for heart transplantation in children with life-long implications for the patien, and cost to the health care system. The goal of this research is to identify the causes of heart failure in children with IDC in order to develop treatments that will improve outcomes of this disease.

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Clinical Investigator Award (CIA) (K08)
Project #
5K08HL127294-05
Application #
9645105
Study Section
NHLBI Mentored Clinical and Basic Science Review Committee (MCBS)
Program Officer
Lidman, Karin Fredriksson
Project Start
2015-04-05
Project End
2021-02-28
Budget Start
2019-03-01
Budget End
2021-02-28
Support Year
5
Fiscal Year
2019
Total Cost
Indirect Cost
Name
University of Colorado Denver
Department
Pediatrics
Type
Schools of Medicine
DUNS #
041096314
City
Aurora
State
CO
Country
United States
Zip Code
80045