Abstract

The rationale for these studies is to explore the role of the bronchial circulation and vascular volume and permeability in the production and/or attenuation of airway obstruction induced by various stimuli i.e. exercise, hyperventilation, allergen, and methacholine. Bronchial blood flow is manipulated by saline, dextran, or dextrose infusions; intravenous or inhaled diuretics, inflation of the lower limb bladders of anti-shock trousers, inhaled vasoconstrictors and vasodilators, or standard anti-asthmatic agents i.e. parasympatholytics, beta agonists, and mast cell stabilizers. The results of these maneuvers upon airway function and reactivity are then assessed. Finally, intra-airway temperatures, as a reflection of flux in blood flow within the bronchial circulation, are measured prior to and following these manipulations in an effort to determine whether alterations in reactivity are indeed correlated with changes in vascular congestion.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
General Clinical Research Centers Program (M01)
Project #
5M01RR000080-34
Application #
5219100
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
34
Fiscal Year
1996
Total Cost
Indirect Cost

  Publications

Randis, Tara M; Rice, Madeline Murguia; Myatt, Leslie et al. (2018) Incidence of early-onset sepsis in infants born to women with clinical chorioamnionitis. J Perinat Med 46:926-933
Clark, Erin A S; Weiner, Steven J; Rouse, Dwight J et al. (2018) Genetic Variation, Magnesium Sulfate Exposure, and Adverse Neurodevelopmental Outcomes Following Preterm Birth. Am J Perinatol 35:1012-1022
Askie, Lisa M; Darlow, Brian A; Finer, Neil et al. (2018) Association Between Oxygen Saturation Targeting and Death or Disability in Extremely Preterm Infants in the Neonatal Oxygenation Prospective Meta-analysis Collaboration. JAMA 319:2190-2201
Saade, G R; Thom, E A; Grobman, W A et al. (2018) Cervical funneling or intra-amniotic debris and preterm birth in nulliparous women with midtrimester cervical length less than 30 mm. Ultrasound Obstet Gynecol 52:757-762
Inker, Lesley A; Grams, Morgan E; Levey, Andrew S et al. (2018) Relationship of Estimated GFR and Albuminuria to Concurrent Laboratory Abnormalities: An Individual Participant Data Meta-analysis in a Global Consortium. Am J Kidney Dis :
Juraschek, Stephen P; Miller 3rd, Edgar R; Appel, Lawrence J (2018) Orthostatic Hypotension and Symptoms in the AASK Trial. Am J Hypertens 31:665-671
Silver, Robert M; Myatt, Leslie; Hauth, John C et al. (2017) Cell-Free Total and Fetal DNA in First Trimester Maternal Serum and Subsequent Development of Preeclampsia. Am J Perinatol 34:191-198
James, Jennifer; Munson, David; DeMauro, Sara B et al. (2017) Outcomes of Preterm Infants following Discussions about Withdrawal or Withholding of Life Support. J Pediatr 190:118-123.e4
Younge, Noelle; Goldstein, Ricki F; Bann, Carla M et al. (2017) Survival and Neurodevelopmental Outcomes among Periviable Infants. N Engl J Med 376:617-628
Bustos, Martha L; Caritis, Steve N; Jablonski, Kathleen A et al. (2017) The association among cytochrome P450 3A, progesterone receptor polymorphisms, plasma 17-alpha hydroxyprogesterone caproate concentrations, and spontaneous preterm birth. Am J Obstet Gynecol 217:369.e1-369.e9

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