Candidate: Jonathan Mansbach, MD is an Instructor in Pediatrics at Harvard Medical School at Children's Hospital Boston (CHB). He supervises an inpatient pediatric service and works with his mentor, Carlos A. Camargo, MD, DrPH, conducting bronchiolitis research. As Co-PIs, they recently completed two Emergency Department (ED)-based bronchiolitis studies: 1) a 37-site cohort study with data collection on 2,847 children, and 2) a 14-site virology study with data collection on 277 children. He also has published health services research on bronchiolitis. Finally, he is a Co-Investigator on U01 AI67693 (Camargo, PI), a 15-site study of 2,250 inpatients age <2 years with bronchiolitis. This K23 application will build directly on this U01 project. Training: In order to meet his career goals of: 1) becoming a national leader of bronchiolitis research;2) understanding the association between vitamin D deficiency and severity of bronchiolits;and 3) becoming an independent patient-oriented investigator, Dr Mansbach requires more training in epidemiology, biostatistics, vitamin D /nutrition, and infectious disease. Therefore, he proposes to take masters-level courses at the Harvard School of Public Health in all of these areas. He also will take classes in leadership development and the ethical conduct of research. Science: Our research has shown that vitamin D deficiency is associated with increased respiratory infections in the first 3 months of life and increased risk of childhood wheezing. The scientific portion of this K23 application focuses on the association between vitamin D deficiency in infancy and the severity of bronchiolitis. Dr Mansbach proposes to conduct a study of children with bronchiolitis presenting to CHB to examine if vitamin D deficiency is associated with: 1) the level of care a child requires - sent home from the ED, ward admission, or intensive care unit admission;2) the viral load of respiratory syncytial virus;and 3) the duration of cough and hospital length of stay. Using 75 hospitalized patients from the U01, and 150 newly-enrolled ED patients for this K23 project, we will have 80% power to detect reasonable odds ratios, effect sizes, and hazard ratios for each of the hypotheses. Summary: A multidisciplinary team of experienced mentors and consultants have committed to help Dr Mansbach fulfill the personal and scientific goals of this K23 application. The results from the scientific portion of this proposal may provide data that will change the care of children and directly lead to R01 applications.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Mentored Patient-Oriented Research Career Development Award (K23)
Project #
5K23AI077801-04
Application #
8234097
Study Section
Microbiology and Infectious Diseases B Subcommittee (MID)
Program Officer
Kim, Sonnie
Project Start
2009-03-01
Project End
2014-02-28
Budget Start
2012-03-01
Budget End
2014-02-28
Support Year
4
Fiscal Year
2012
Total Cost
$132,300
Indirect Cost
$9,800
Name
Children's Hospital Boston
Department
Type
DUNS #
076593722
City
Boston
State
MA
Country
United States
Zip Code
02115
Schroeder, Alan R; Mansbach, Jonathan M (2014) Recent evidence on the management of bronchiolitis. Curr Opin Pediatr 26:328-33
Hasegawa, Kohei; Mansbach, Jonathan M; Teach, Stephen J et al. (2014) Multicenter study of viral etiology and relapse in hospitalized children with bronchiolitis. Pediatr Infect Dis J 33:809-13
Hyde, Embriette R; Petrosino, Joseph F; Piedra, Pedro A et al. (2014) Nasopharyngeal Proteobacteria are associated with viral etiology and acute wheezing in children with severe bronchiolitis. J Allergy Clin Immunol 133:1220-2
Schroeder, Alan R; Mansbach, Jonathan M; Stevenson, Michelle et al. (2013) Apnea in children hospitalized with bronchiolitis. Pediatrics 132:e1194-201
Mansbach, Jonathan M; Piedra, Pedro A; Laham, Federico R et al. (2012) Nasopharyngeal lactate dehydrogenase concentrations predict bronchiolitis severity in a prospective multicenter emergency department study. Pediatr Infect Dis J 31:767-9
Ginde, Adit A; Sullivan, Ashley F; Mansbach, Jonathan M et al. (2010) Vitamin D insufficiency in pregnant and nonpregnant women of childbearing age in the United States. Am J Obstet Gynecol 202:436.e1-8
Jartti, Tuomas; Ruuskanen, Olli; Mansbach, Jonathan M et al. (2010) Low serum 25-hydroxyvitamin D levels are associated with increased risk of viral coinfections in wheezing children. J Allergy Clin Immunol 126:1074-6, 1076.e1-4
Mansbach, Jonathan M; Camargo Jr, Carlos A (2009) Respiratory viruses in bronchiolitis and their link to recurrent wheezing and asthma. Clin Lab Med 29:741-55