Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Tuhin K Roy"'
Autor:
Tuhin K Roy, Timothy W. Secomb
Publikováno v:
Frontiers in Physiology, Vol 5 (2014)
A mathematical simulation of flow regulation in vascular networks is used to investigate the interaction between arteriolar vasoconstriction due to sympathetic nerve activity (SNA) and vasodilation due to increased oxygen demand. A network with thirt
Externí odkaz:
https://doaj.org/article/37ef101238514525bf238df426593021
Publikováno v:
Physiological Reports, Vol 11, Iss 17, Pp n/a-n/a (2023)
Abstract Oxygen transport from the lungs to peripheral tissue is dependent on the affinity of hemoglobin for oxygen. Recent experimental data have suggested that the maximum human capacity for oxygen uptake and utilization (V̇O2max) at sea level and
Externí odkaz:
https://doaj.org/article/0d0c9a91442342c48776a27d695f796b
Autor:
Wyatt W. Pruter, Stephen A. Klassen, Paolo B. Dominelli, Chad C. Wiggins, Jonathon W. Senefeld, Tuhin K. Roy, Michael J. Joyner, Sarah E. Baker
Publikováno v:
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology. 324:R625-R634
During hypoxic exposure, humans with high-affinity hemoglobin (and compensatory polycythemia) have blunted increases in heart rate compared with healthy humans with typical oxyhemoglobin dissociation curves. This response may be associated with alter
Autor:
Timothy W. Secomb, Chad C. Wiggins, Michael J. Joyner, Tuhin K. Roy, Paolo B. Dominelli, Timothy B. Curry
Publikováno v:
Mayo Clin Proc
The oxygen transport cascade describes the physiological ‘steps’ that bring atmospheric oxygen into the body where it is delivered and consumed by metabolically active tissue. As such, the oxygen cascade is fundamental to our understanding of exe
Autor:
Tuhin K. Roy, Timothy W. Secomb
Publikováno v:
The FASEB Journal. 36
Autor:
Wyatt W. Pruter, Stephen A. Klassen, Paolo B. Dominelli, Chad C. Wiggins, Jonathon W. Senefeld, Tuhin K. Roy, Michael J. Joyner, Sarah E. Baker
Publikováno v:
The FASEB Journal. 36
Autor:
Tuhin K Roy, Timothy Secomb
Publikováno v:
Physiological Reports. 10
In the vascular system, an extensive network structure provides convective and diffusive transport of oxygen to tissue. In the microcirculation, parameters describing network structure, blood flow, and oxygen transport are highly heterogeneous. This
Autor:
Paolo B. Dominelli, James D. Hoyer, Shelly K. Roberts, Michael J. Joyner, Sarah E. Baker, Tuhin K. Roy, Jennifer L. Oliveira, John R. A. Shepherd, Chad C. Wiggins, Timothy B. Curry
Publikováno v:
The Journal of Physiology. 598:1475-1490
KEY POINTS Theoretical models suggest there is no benefit of high affinity haemoglobin to preserve maximal oxygen uptake in acute hypoxia but the comparative biology literature has many examples of species that are evolutionarily adapted to hypoxia a
Autor:
Kevin L. Webb, Ahmed N. Elshaer, Paolo B. Dominelli, Jonathon W. Senefeld, Shane M. Hammer, Sarah E. Baker, John R. A. Shepherd, Tuhin K. Roy, Michael J. Joyner, Chad C. Wiggins
Publikováno v:
Experimental physiology. 107(8)
What is the central question of this study? Do humans with high-affinity haemoglobin (HAH) demonstrate attenuated skeletal muscle deoxygenation during normoxic and hypoxic exercise? What is the main finding and its importance? Examination of near-inf
Autor:
Chad C. Wiggins, John R. A. Shepherd, Paolo B. Dominelli, Jennifer L. Oliveira, Pavol Sajgalik, James D. Hoyer, Glenn M. Stewart, Shelly K. Roberts, Glen E. Foster, Timothy B. Curry, Sarah E. Baker, Tuhin K. Roy, Michael J. Joyner
Publikováno v:
J Appl Physiol (1985)
Arterial oxygen tension and oxyhemoglobin saturation ([Formula: see text]) decrease in parallel during hypoxia. Distinguishing between changes in oxygen tension and oxygen content as the relevant physiological stimulus for cardiorespiratory alteratio