The broad goals of this K02 are to expand our understanding of basic mechanisms mediating adverse birth outcomes in the context of S. japonicum infection and to extend the areas of scientific expertise of an established investigator. The proposed work will leverage the infrastructure and samples collected by an NIH funded randomized controlled trial (U01AI066050) of praziquantel treatment for S. japonicum during pregnancy. The U01 study just started its second of five years and will begin recruitment in mid June of 2007. The specific goals of this work are to examine how treatment for S. japonicum alters placental iron metabolism, modifies the cytokine micro-environment of the placenta, and how this alters placental health as defined by quantification of trophoblast apoptosis. This work is highly collaborative in nature, allowing examination of basic mechanism of S. japonicum related pregnancy morbidity not addressed by the U01 study. This will allow the principal investigator to explore novel avenues of inquiry, not currently her primary skill set. S. japonicum offers an outstanding model for understanding how systemic inflammation, including anemia of inflammation with attendant alterations in iron metabolism affects pregnancy outcomes. Due to the fact that it is easily treated and systemic inflammation is shown to dissipate within a few weeks of therapy, this disease provides an excellent model in which to study the effects of systemic inflammation during pregnancy. Thus, this work is generalizable to a host of infectious and non-infectious diseases of pregnancy that generate an exuberant pro-inflammatory immune response including HIV, tuberculosis, systemic lupus erythematosus, and many others.

Agency
National Institute of Health (NIH)
Institute
National Institute of Allergy and Infectious Diseases (NIAID)
Type
Research Scientist Development Award - Research (K02)
Project #
5K02AI077708-02
Application #
7590427
Study Section
Microbiology and Infectious Diseases B Subcommittee (MID)
Program Officer
Prograis, Lawrence J
Project Start
2008-04-01
Project End
2012-03-31
Budget Start
2009-04-01
Budget End
2010-03-31
Support Year
2
Fiscal Year
2009
Total Cost
$105,195
Indirect Cost
Name
Rhode Island Hospital
Department
Type
DUNS #
075710996
City
Providence
State
RI
Country
United States
Zip Code
02903
Blake, Rachel A; Park, Sangshin; Baltazar, Palmera et al. (2016) LBW and SGA Impact Longitudinal Growth and Nutritional Status of Filipino Infants. PLoS One 11:e0159461
McDonald, Emily A; Pond-Tor, Sunthorn; Jarilla, Blanca et al. (2014) Schistosomiasis japonica during pregnancy is associated with elevated endotoxin levels in maternal and placental compartments. J Infect Dis 209:468-72
McDonald, Emily A; Friedman, Jennifer F; Sharma, Surendra et al. (2013) Schistosoma japonicum soluble egg antigens attenuate invasion in a first trimester human placental trophoblast model. PLoS Negl Trop Dis 7:e2253
Shaw, Julia G; Friedman, Jennifer F (2011) Iron deficiency anemia: focus on infectious diseases in lesser developed countries. Anemia 2011:260380
Kurtis, Jonathan D; Higashi, Ashley; Wu, Hai-Wei et al. (2011) Maternal Schistosomiasis japonica is associated with maternal, placental, and fetal inflammation. Infect Immun 79:1254-61