Publications by authors named "Stephen A Klassen"

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Baroreflex regulation of sympathetic neuronal discharge during large, rapid changes in blood pressure caused by ventricular bigeminy and sinus pause.
Nathaniel J Iannarelli, Cameron M Lynn, Julia E Spafford, Michael N Sattin, Deborah D O'Leary, Stephen A Klassen

J Appl Physiol (1985)· December 2025

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Long-duration head-down bed rest alters human sympathetic neurocirculatory regulation.
Nathaniel J Iannarelli, Julia E Spafford, Danielle K Greaves, Pierre Denise, Hervé Normand, Stephen A Klassen

J Appl Physiol (1985)· November 2025

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The role of α-adrenergic mechanisms in sympathetic baroreflex control of human blood pressure.
Julia E Spafford, Jacqueline K Limberg, Ronée E Harvey, Chad C Wiggins, Nathaniel J Iannarelli, Stephen A Klassen

Am J Physiol Heart Circ Physiol· November 2025

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Evidence for the Efficacy of COVID-19 Convalescent Plasma.
Stephen A Klassen, Jonathon W Senefeld

Curr Top Microbiol Immunol· October 2025

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Individuals with persisting post-concussion symptoms with physiological subtype demonstrate altered cardiovascular and autonomic responses to face cooling.
Phillip J Wallace, Steve Lidstone, Josh G Nowlan, Johnathan Ljubanovich, Brandon J McKinlay, Stephen A Klassen

Exp Physiol· July 2025

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Cardiac Troponin T Elevation Predicts Mortality in Hospitalized COVID-19 Patients.
Katelyn A Bruno, R Scott Wright, Joshua Culberson, Mikolaj A Wieczorek, David O Hodge, Stephen A Klassen

medRxiv· July 2025

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Human sympathetic neuronal discharge and recruitment patterns regulate neuropeptide Y bioavailability.
Stephen A Klassen, Jacqueline K Limberg, Ronée E Harvey, Chad C Wiggins, Julia E Spafford

Am J Physiol Heart Circ Physiol· December 2024

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No influence of steady-state postural changes on cerebrovascular compliance in humans.
Alicia M Kells, M Erin Moir, Geoff B Coombs, Andrew W D'Souza, Stephen A Klassen

Appl Physiol Nutr Metab· September 2024

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Interaction of simultaneous hypoxia and baroreflex loading on control of sympathetic action potential subpopulations.
Natasha G Boyes, Stephen A Klassen, Sarah E Baker, Wayne T Nicholson, Michael J Joyner

J Neurophysiol· September 2024

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Central α-adrenergic mechanisms regulate human sympathetic neuronal discharge strategies.
Stephen A Klassen, Jacqueline K Limberg, Ronée E Harvey, Chad C Wiggins, Nathaniel J Iannarelli

J Physiol· August 2024

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Examining the Light Heart Mobile Device App for Assessing Human Pulse Interval and Heart Rate Variability: Validation Study.
Stephen A Klassen, Jesica Jabbar, Jenna Osborne, Nathaniel J Iannarelli, Emerson S Kirby

JMIR Form Res· August 2024

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The relationship between hemoglobin and : A systematic review and meta-analysis.
Kevin L Webb, Ellen K Gorman, Olaf H Morkeberg, Stephen A Klassen, Riley J Regimbal

PLoS One· November 2023

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Rates Among Hospitalized Patients With COVID-19 Treated With Convalescent Plasma: A Systematic Review and Meta-Analysis.
Jonathon W Senefeld, Ellen K Gorman, Patrick W Johnson, M Erin Moir, Stephen A Klassen

Mayo Clin Proc Innov Qual Outcomes· October 2023

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Exercise and Experiments of Nature.
Michael J Joyner, Chad C Wiggins, Sarah E Baker, Stephen A Klassen, Jonathon W Senefeld

Compr Physiol· June 2023

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Attenuated cardiac autonomic function in humans with high-affinity hemoglobin and compensatory polycythemia.
Wyatt W Pruter, Stephen A Klassen, Paolo B Dominelli, Chad C Wiggins, Jonathon W Senefeld

Am J Physiol Regul Integr Comp Physiol· May 2023

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Baroreflex resetting of human sympathetic action potential subpopulations during exercise.
Stephen A Klassen, Mark B Badrov, M Erin Moir, J Kevin Shoemaker

J Neurophysiol· April 2023

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Regulation of cerebrovascular compliance compared with forearm vascular compliance in humans: a pharmacological study.
M Erin Moir, Stephen A Klassen, Mair Zamir, J W Hamner, Can Ozan Tan

Am J Physiol Heart Circ Physiol· January 2023

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Aging is associated with enhanced central but impaired peripheral arms of the sympathetic baroreflex arc.
Andrew W D'Souza, Stephen A Klassen, Mark B Badrov, Sophie Lalande, J Kevin Shoemaker

J Appl Physiol (1985)· August 2022

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Limited Correlation between SARS-CoV-2 Serologic Assays for Identification of High-Titer COVID-19 Convalescent Plasma Using FDA Thresholds.
Nicholas E Larkey, Radwa Ewaisha, Michael A Lasho, Matthew M Roforth, Dane Granger, Stephen A Klassen

Microbiol Spectr· August 2022

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Embracing a curiosity-driven approach in the microneurographic exploration of the human vagus nerves.
Michael J Joyner, Stephen A Klassen

J Physiol· July 2022

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Action potential amplitude and baroreflex resetting of action potential clusters mediate hypoxia-induced sympathetic long-term facilitation.
Brooke M Shafer, Anthony V Incognito, Tyler D Vermeulen, Massimo Nardone, André L Teixeira, Stephen A Klassen

J Physiol· July 2022

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Interactive effects of apneic and baroreflex stress on neuronal coding strategies in human muscle sympathetic nerve activity.
Bartek Kulas, Stephen A Klassen, M Erin Moir, J Kevin Shoemaker

J Neurophysiol· April 2022

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Coagulation profile of human COVID-19 convalescent plasma.
Allan M Klompas, Noud van Helmond, Justin E Juskewitch, Rajiv K Pruthi, Matthew A Sexton, Stephen A Klassen

Sci Rep· January 2022

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Influence of High Hemoglobin-Oxygen Affinity on Humans During Hypoxia.
Kevin L Webb, Paolo B Dominelli, Sarah E Baker, Stephen A Klassen, Michael J Joyner

Front Physiol· January 2022

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The Role of Disease Severity and Demographics in the Clinical Course of COVID-19 Patients Treated With Convalescent Plasma.
Tengfei Ma, Chad C Wiggins, Breanna M Kornatowski, Ra'ed S Hailat, Andrew J Clayburn, Stephen A Klassen

Front Med (Lausanne)· January 2022

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