PROJECT 3:This project will elucidate basic mechanisms linking sleep disordered breathing with accelerated decline inpulmonary and systemic manifestations of COPD. Its overall hypothesis is that sleep disorderedbreathing in COPD triggers pulmonary and systemic inflammatory responses, which can bemitigated by a novel therapeutic strategy. A combination of human and murine models will be utilized toaddress this hypothesis. Human studies are designed to elucidate unique physiologic mechanisms of sleepdisordered breathing in COPD, characterize its impact on nocturnal oxygenation and systemic inflammation,and pilot novel therapy to prevent accelerated decline in COPD. These human studies will derive crucialsupport from parallel SCCOR studies of inflammatory profiles and therapeutic trials in COPD patients. Incomplementary murine studies, this project will model the effects of intermittent hypoxemia in sleepdisordered breathing, and in concert with basic lung biologists involved in this SCCOR program, will dissectfundamental molecular antimorphogenic and proinflammatory mechanisms of COPD progression. Ourproposal has immediate clinical implications for the patient with COPD. It will provide new non-invasivephysiologic and serum markers of disease progression. These markers may be used to stratify COPDpatients at increased risk of morbidity and mortality, target particular patient subgroups for early intervention,and monitor therapeutic responses. This project will provide fundamental molecular, physiologic andtherapeutic insights from a unique combination of human and murine studies, which will ultimately improvehealth outcomes in COPD.

Agency
National Institute of Health (NIH)
Institute
National Heart, Lung, and Blood Institute (NHLBI)
Type
Specialized Center (P50)
Project #
1P50HL084945-01
Application #
7246943
Study Section
Special Emphasis Panel (ZHL1-CSR-A (M1))
Project Start
2006-12-01
Project End
2011-11-30
Budget Start
2006-12-01
Budget End
2008-08-31
Support Year
1
Fiscal Year
2007
Total Cost
$532,346
Indirect Cost
Name
Johns Hopkins University
Department
Type
DUNS #
001910777
City
Baltimore
State
MD
Country
United States
Zip Code
21218
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