Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Hannah G Caldwell"'
Autor:
Jan S. Jeppesen, Hannah G. Caldwell, Lone O. Lossius, Anna K. Melin, Lasse Gliemann, Jens Bangsbo, Ylva Hellsten
Publikováno v:
Redox Biology, Vol 75, Iss , Pp 103250- (2024)
Abstract (301 words): Introduction: The effects of low energy availability (LEA) on the immune system are poorly understood. This study examined the effects of 14 days of LEA on immune cell redox balance and inflammation at rest and in response to ac
Externí odkaz:
https://doaj.org/article/de52a7cd34ca4cdfbeb6e45fa7fb31a6
Autor:
Patrice Brassard, Lawrence Labrecque, Jonathan D. Smirl, Michael M. Tymko, Hannah G. Caldwell, Ryan L. Hoiland, Samuel J. E. Lucas, André Y. Denault, Etienne J. Couture, Philip N. Ainslie
Publikováno v:
Physiological Reports, Vol 9, Iss 15, Pp n/a-n/a (2021)
Abstract In 1959, Niels Lassen illustrated the cerebral autoregulation curve in the classic review article entitled Cerebral Blood Flow and Oxygen Consumption in Man. This concept suggested a relatively broad mean arterial pressure range (~60–150 m
Externí odkaz:
https://doaj.org/article/b5bff2ce6f6c46edae53b5c80e2c04e8
Autor:
Tyler Kelly, Alexander Patrician, Mohini Bryant-Ekstrand, Courtney Brown, Christopher Gasho, Hannah G. Caldwell, Rachel N. Lord, Tony Dawkins, Aimee Drane, Michael Stembridge, Tanja Dragun, Otto Barak, Boris Spajić, Ivan Drviš, Joseph W. Duke, Glen E. Foster, Philip N. Ainslie, Željko Dujić, Andrew T. Lovering
Publikováno v:
Journal of Science and Medicine in Sport. 25:553-556
Objectives: During apnea diving, a patent foramen ovale may function as a pressure relief valve under conditions of high pulmonary pressure, preserving left-ventricular output. Patent foramen ovale prevalence in apneic divers has not been previously
Autor:
Benjamin S. Stacey, Ryan L. Hoiland, Hannah G. Caldwell, Connor A. Howe, Tyler Vermeulen, Michael M. Tymko, Gustavo A. Vizcardo‐Galindo, Daniella Bermudez, Rómulo J. Figueroa‐Mujíica, Christopher Gasho, Edouard Tuaillon, Christophe Hirtz, Sylvain Lehmann, Nicola Marchi, Hayato Tsukamoto, Francisco C. Villafuerte, Philip N. Ainslie, Damian M. Bailey
KEY POINTS: High-altitude (HA) hypoxia has the potential to alter the structural-functional integrity of the neurovascular unit (NVU) in humans. For the first time, we examined to what extent chronic and lifelong hypoxia impacts multimodal biomarkers
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::46ea372579d298c4f3af53e2e8ff10ca
https://hdl.handle.net/20.500.12866/13113
https://hdl.handle.net/20.500.12866/13113
Autor:
Hannah G Caldwell, Ryan L Hoiland, Kurt J Smith, Patrice Brassard, Anthony R Bain, Michael M Tymko, Connor A Howe, Jay MJR Carr, Benjamin S Stacey, Damian M Bailey, Audrey Drapeau, Mypinder S Sekhon, David B MacLeod, Philip N Ainslie
Publikováno v:
Journal of Cerebral Blood Flow & Metabolism. 42:559-571
This study investigated trans-cerebral internal jugular venous-arterial bicarbonate ([HCO3−]) and carbon dioxide tension (PCO2) exchange utilizing two separate interventions to induce acidosis: 1) acute respiratory acidosis via elevations in arteri
Autor:
Ryan L. Hoiland, Kurt J. Smith, Michael M. Tymko, Philip N. Ainslie, Hannah G. Caldwell, Jay M. J. R. Carr, Daniel J. Green, Howard H. Carter
Publikováno v:
Experimental Physiology. 106:2542-2555
New findings What is the central question of this study? During a steady-state cerebrovascular CO2 reactivity test, do different data extraction time points change the outcome for cerebrovascular CO2 reactivity? What is the main finding and its impor
Autor:
Jay M. J. R. Carr, Philip N. Ainslie, Connor A. Howe, Travis D. Gibbons, Michael M. Tymko, Andrew R. Steele, Ryan L. Hoiland, Gustavo A. Vizcardo‐Galindo, Alex Patrician, Courtney V. Brown, Hannah G. Caldwell, Joshua C. Tremblay
Publikováno v:
Experimental physiologyREFERENCES. 107(12)
What is the central question of this study? What are the contributions of shear stress and adrenergic tone to brachial artery vasodilatation during hypercapnia? What is the main finding and its importance? In healthy young adults, shear-mediated vaso
Publikováno v:
Tamariz-Ellemann, A, Caldwell, H G & Gliemann, L 2022, ' Gastric inhibitory polypeptide as the new candidate for the interaction of skeletal muscle blood flow and glucose disposal ', Journal of Physiology, vol. 600, no. 7, pp. 1593-1595 . https://doi.org/10.1113/JP282843
Autor:
Ryan L Hoiland, David B MacLeod, Benjamin S Stacey, Hannah G Caldwell, Connor A Howe, Daniela Nowak-Flück, Jay MJR Carr, Michael M Tymko, Geoff B Coombs, Alexander Patrician, Joshua C Tremblay, Michelle Van Mierlo, Chris Gasho, Mike Stembridge, Mypinder S Sekhon, Damian M Bailey, Philip N Ainslie
Publikováno v:
Journal of Cerebral Blood Flow & Metabolism. :0271678X2311695
Cerebral hypoxic vasodilation is poorly understood in humans, which undermines the development of therapeutics to optimize cerebral oxygen delivery. Across four investigations (total n = 195) we investigated the role of nitric oxide (NO) and hemoglob
Autor:
Thompson G. Robinson, Connor A. Howe, Philip N. Ainslie, Courtney V. Brown, Jay M. J. R. Carr, Alexander Patrician, Jatinder S. Minhas, Ronney B. Panerai, Hannah G. Caldwell, Carter J. Chalifoux, Joshua C. Tremblay, Ryan L. Hoiland
Publikováno v:
The Journal of Physiology. 599:3663-3676
KEY POINTS We investigated the influence of arterial PCO2 ( PaCO2 ) with and without acute experimental metabolic alkalosis on neurovascular coupling (NVC). We assessed stepwise iso-oxic alterations in PaCO2 prior to and following intravenous NaHCO3