Results 31 to 40 of about 1,398 (131)

Differential intestinal injury and unchanged systemic inflammatory responses to leg and whole‐body passive hyperthermia in healthy humans

Experimental Physiology, EarlyView.
Abstract Hyperthermia can cause intestinal injury, facilitating endotoxin translocation and an inflammatory response that has been associated with heat illness. However, the potential occurrence of these responses has been incompletely reported during passive hyperthermia, and the independent effect of hyperthermia is equivocal.
Oliver R. Gibson, Orlando Laitano, Kazuhito Watanabe, José González‐Alonso   +3 more
wiley   +1 more source

Modulation of cerebral blood flow and cognition by hyperthermia and hypoxia: An electroencephalographic event‐related potentials perspective

Experimental Physiology, EarlyView.
Abstract Cerebral blood flow (CBF) is essential for sustaining neuronal metabolism and cognitive performance; however, the precise relationship between perfusion and cognition remains unclear. Although ageing and disease are associated with progressive declines in CBF and cognitive impairment, the acute effects of altered CBF under environmental ...
Hiroki Nakata, Shigehiko Ogoh, Manabu Shibasaki   +2 more
wiley   +1 more source

Numerical simulation of the effect of hypergravity on the dendritic growth characteristics of aluminum alloys

Heliyon
The cellular automata-lattice Boltzmann method is used to simulate the dendritic growth process of aluminum alloys under the action of hypergravity by performing coupling heat and mass transfer, solidification and flow.
Yanying Zhang, Ruifeng Dou, Junsheng Wang, Xunliang Liu, Zhi Wen   +4 more
doaj   +1 more source

Brain strain: Blood flow and metabolism in environmental extremes

Experimental Physiology, EarlyView.
Abstract This narrative review compares and contrasts the most commonly encountered environmental stressors on human cerebrovascular functioning. From high altitude and space, extreme apnoea, heat and cold stress, the impact of these stressors on the regulation of cerebral blood flow (CBF) and oxygen metabolism (CMRO2${\mathrm{CM}}{{\mathrm{R}}_ ...
Dario Vrdoljak, Damian M. Bailey, Travis D. Gibbons, Philip N. Ainslie   +3 more
wiley   +1 more source

Tunable flexible capacitive sensor for dynamic pressure monitoring

Microsystems & Nanoengineering
Flexible capacitive pressure sensors have gained widespread application in health monitoring, robotics, and structural diagnostics. However, conventional designs that rely on flat or micropatterned dielectric layers typically offer high sensitivity only ...
Haoran Fu, Zhehui Zhao, Jianqun Jiang, Yunmin Chen, Haoyu Zhang, Haoran Li, Guanwen Liang   +6 more
doaj   +1 more source

Mechanisms of haemoglobin mass expansion following heat stress

The Journal of Physiology, EarlyView.
Abstract figure legend Theorised mechanisms of heat stress‐induced erythropoiesis which may facilitate the expansion of haemoglobin mass. A, acute: heat stress‐induced renal ischaemia. Redistribution of blood flow away from the kidneys to facilitate thermoregulation during heat stress could reduce renal oxygen delivery, subsequently lowering renal PO2${
Elliott J. Jenkins, Brittany A. Edgett, Michael G. Hughes, Joshua C. Tremblay, Mike Stembridge   +4 more
wiley   +1 more source

The Study of Hypergravity and Flight Stress on Different Cell Lines Function in Sounding Rocket [PDF]

فصلنامه علوم و فناوری فضایی, 2014
Stress environment of space flights including hypergravity and microgravity effect cell functions and processes. We studied effect of hypergravity and flight stress on function, death, growth and cellular damage of five cell lines including human ...
Z. Hajebrahimi, L. Alidoust, M. Arabian, E. Alavi, M. Ebrahimi, M. Bahrami   +5 more
doaj  

The importance of gravity vector on adult mammalian organisms: Effects of hypergravity on mouse testis.

PLoS ONE, 2023
In the age of space exploration, the effect of hypergravity on human physiology is a relatively neglected topic. However, astronauts have several experiences of hypergravity during their missions. The main disturbance of altered gravity can be imputed to
Valentina Bonetto, Valeria Magnelli, Maurizio Sabbatini, Flavia Caprì, Jack J W A van Loon, Sara Tavella, Maria Angela Masini   +6 more
doaj   +1 more source

Elevation of body temperature during exercise enhances protection against dexamethasone‑induced skeletal muscle atrophy

Experimental Physiology, Volume 111, Issue 10, Page 4781-4792, 1 October 2026.
Abstract Prolonged glucocorticoid exposure induces skeletal muscle atrophy through suppression of protein synthesis and activation of catabolic signalling pathways. Although exercise attenuates glucocorticoid‐induced muscle loss, whether exercise‐induced increases in body temperature contribute remains unclear.
Berkay Ozerklig, Senay Akin, Seda Olgaz Bingol, Bulent Okan Yildiz, Scott K. Powers, Ibrahim Turkel, Haydar A. Demirel   +6 more
wiley   +1 more source

The Impact of Altered Gravity and Vibration on Endothelial Cells During a Parabolic Flight

Cellular Physiology and Biochemistry, 2013
Background: Endothelial cells (EC) cultured under altered gravity conditions show a cytoskeletal disorganization and differential gene expression (short-term effects), as well as apoptosis in adherently growing EC or formation of tubular 3D structures ...
Markus Wehland, Xiao Ma, Markus Braun, Jens Hauslage, Ruth Hemmersbach, Johann Bauer, Jirka Grosse, Manfred Infanger, Daniela Grimm   +8 more
doaj   +1 more source