Browsing by Author "Lovering, Andrew"

Navigation

Display Options

Results

Now showing items 1-13 of 13

Association of Patent Foramen Ovale with Respiratory Heat Loss at Rest and During Exercise in Men

Castillo, Elizabeth (University of Oregon, 2023-04)

During exercise, approximately 10-14% of heat loss occurs via respiration, termed respiratory heat loss (RHL). RHL involves components of both evaporative (Eres) and convective (Cres) heat loss from the upper respiratory ...
Association of PATENT FORAMEN OVALE with the METABOLIC HEAT PRODUCTION and CORE TEMPERATURE relationship in men

Subhasree Badrinarayan, Prakrunya (University of Oregon, 2023)

A patent foramen ovale (PFO) is an intracardiac shunt between the right and left atria that allows deoxygenated blood to flow from the right atrium through the shunt to the left atrium. Previous studies from our laboratory ...
Association of PFO, Inflammatory Cytokines and White Blood Cells with Hemoglobin Mass in Men

Matsell, Emma (University of Oregon, 2023)

A patent foramen ovale (PFO) is a source of intracardiac shunt, and preliminary data suggests that those with a PFO have higher concentrations of inflammatory cytokines. Cytokines and white blood cells (WBCs) negatively ...
Blood Flow Through Intrapulmonary Arteriovenous Anastomoses: Reconciliation of Inconsistent Data Obtained in Hypobaria and Body Position Studies

Petrassi, Frank (University of Oregon, 2018-04-10)

Intrapulmonary arteriovenous anastomoses (IPAVA) are vascular conduits through which blood flow bypasses the pulmonary circulation, and does not participate in pulmonary gas exchange. Blood flow through IPAVA (QIPAVA) is ...
Comparing Acute Mountain Sickness Definitions to Examine Differences in Systemic Inflammation

Shah, Karina (University of Oregon, 2021)

Acute mountain sickness (AMS) occurs when individuals rapidly ascend to high altitudes, but its exact cause remains unknown. Additionally, AMS is assessed using a subjective questionnaire with a variety of criteria used ...
Comprehensive examination of the differences in thermoregulatory and ventilatory responses between humans with and without a PFO under different environmental conditions

Davis, James (University of Oregon, 2016-11-21)

The existence of a patent foramen ovale (PFO) has been known about for nearly 2,000 years. The prevalence of a PFO has been shown to be 25-40% in the general population. Despite the fact that blood flowing through a PFO ...
Core and Skin Temperatures in Men With and Without a Patent Foramen Ovale at Rest and During Exercise

Feldmeier, Hannah (University of Oregon, 2023)

Introduction: During exercise, core (Tc) and skin temperatures (Tsk) increase due to elevations in heat production (Hprod) from increased metabolism by exercising muscles. To maintain Tc and Tsk within a precise range, the ...
Heart Holes and Breath Holds: Influence of Sex and Intracardiac Shunt on Pulmonary Gas Exchange Efficiency and Association of Vascular Mediators on Blunted Hypoxic Pulmonary Vasoconstriction in Apnea Divers

Kelly, Tyler (University of Oregon, 2024-03-25)

Patent foramen ovale (PFO) has been documented in humans since Galen reported their existence approximately 2000 years ago. PFO has been associated with a variety of negative outcomes such as impaired ventilatory ...
Insight into the Physiologic Impact of Right-to-Left Intrapulmonary and Intracardiac Shunt in Healthy Humans

Elliott, Jonathan (University of Oregon, 2014-10-17)

Large diameter intrapulmonary arteriovenous anastomoses (IPAVA) have been known to exist in humans for >60 years, and the prevalence of patent foramen ovale (PFO) is ~35-40% in the general population. However, respiratory ...
Power Spectrum of Brain Activity During Sleep and Development of Spaceflight Associated Neuro-ocular Syndrome

Grivette, Margaret (University of Oregon, 2023-05)

Approximately 70% of astronauts returning from 4-6 months of spaceflight present lasting neuro-ocular changes including retinal thickening, cotton wool spots, and optic disc edema among others. This syndrome of findings ...
The Regulation and Significance of Intrapulmonary Arteriovenous Anastomoses in Healthy Humans

Laurie, Steven (University of Oregon, 2012)

Intrapulmonary arteriovenous anastomoses (IPAVA) have been known to exist as part of the normal pulmonary vasculature for over 50 years but have been underappreciated by physiologists and clinicians. Using a technique ...
The Examination of Inflammation, Iron Availability, and Patent Foramen Ovale as Factors that Influence Variability in Erythropoietin, Hemoglobin Mass, and Pulmonary Vascular

DiMarco, Kaitlyn (University of Oregon, 2024-03-25)

Individual variability in the cardiopulmonary system is often ignored in favor of focusing on group or treatment means. Erythropoietin (EPO) concentrations in response to renal hypoxemia, sea level hemoglobin (Hb) mass (Hb ...
The Relationship Between Acute Mountain Sickness, Patent Foramen Ovale, and Systemic Inflammation

Shah, Karina; DiMarco, Kaitlyn; Lovering, Andrew (University of Oregon, 2020)

Acute mountain sickness (AMS) occurs when individuals rapidly ascend to high altitude, but its exact cause is unknown. A patent foramen ovale (PFO) is a hole in the heart present in one-third of the population. PFO+ subjects ...