Results 1 to 10 of about 207,666 (291)

Sensing Magnetic Directions in Birds: Radical Pair Processes Involving Cryptochrome [PDF]

Biosensors, 2014
Birds can use the geomagnetic field for compass orientation. Behavioral experiments, mostly with migrating passerines, revealed three characteristics of the avian magnetic compass: (1) it works spontaneously only in a narrow functional window around the ...
Roswitha Wiltschko, Wolfgang Wiltschko
doaj   +3 more sources

HEK293 cell response to static magnetic fields via the radical pair mechanism may explain therapeutic effects of pulsed electromagnetic fields. [PDF]

PLoS ONE, 2020
PEMF (Pulsed Electromagnetic Field) stimulation has been used for therapeutic purposes for over 50 years including in the treatment of memory loss, depression, alleviation of pain, bone and wound healing, and treatment of certain cancers.
Marootpong Pooam, Nathalie Jourdan, Mohamed El Esawi, Rachel M Sherrard, Margaret Ahmad   +4 more
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Quantum theory of a potential biological magnetic field sensor: Radical pair mechanism in flavin adenine dinucleotide biradicals [PDF]

Computational and Structural Biotechnology Journal
Recent studies in vitro and in vivo suggest that flavin adenine dinucleotide (FAD) on its own might be able to act as a biological magnetic field sensor.
Amirhosein Sotoodehfar, Rishabh, Hadi Zadeh-Haghighi, Christoph Simon   +3 more
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Magneto-oncology: a radical pair primer [PDF]

Frontiers in Oncology
There are few well-established biophysical mechanisms by which external magnetic fields can influence the biochemistry of molecules in living systems. The radical pair mechanism is arguably the most promising.
P. J. Hore
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Hypomagnetic field effects as a potential avenue for testing the radical pair mechanism in biology

Frontiers in Physics, 2023
Near-zero magnetic fields, called hypomagnetic fields, are known to impact biological phenomena, including developmental processes, the circadian system, neuronal and brain activities, DNA methylation, calcium balance in cells, and many more.
Hadi Zadeh-Haghighi, Hadi Zadeh-Haghighi, Hadi Zadeh-Haghighi, Rishabh Rishabh, Rishabh Rishabh, Rishabh Rishabh, Christoph Simon, Christoph Simon, Christoph Simon   +8 more
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Radical pairs may explain reactive oxygen species-mediated effects of hypomagnetic field on neurogenesis.

PLoS Computational Biology, 2022
Exposures to a hypomagnetic field can affect biological processes. Recently, it has been observed that hypomagnetic field exposure can adversely affect adult hippocampal neurogenesis and hippocampus-dependent cognition in mice.
Rishabh Rishabh, Hadi Zadeh-Haghighi, Dennis Salahub, Christoph Simon   +3 more
doaj   +1 more source

Radical pairs may play a role in microtubule reorganization

Scientific Reports, 2022
The exact mechanism behind general anesthesia remains an open question in neuroscience. It has been proposed that anesthetics selectively prevent consciousness and memory via acting on microtubules (MTs).
Hadi Zadeh-Haghighi, Christoph Simon
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Radical pairs may play a role in xenon-induced general anesthesia

Scientific Reports, 2021
Understanding the mechanisms underlying general anesthesia would be a key step towards understanding consciousness. The process of xenon-induced general anesthesia has been shown to involve electron transfer, and the potency of xenon as a general ...
Jordan Smith, Hadi Zadeh Haghighi, Dennis Salahub, Christoph Simon   +3 more
doaj   +1 more source

Cryptochrome and quantum biology: unraveling the mysteries of plant magnetoreception

Frontiers in Plant Science, 2023
Magnetoreception, the remarkable ability of organisms to perceive and respond to Earth’s magnetic field, has captivated scientists for decades, particularly within the field of quantum biology.
Thawatchai Thoradit, Kanjana Thongyoo, Khwanchai Kamoltheptawin, Lalin Tunprasert, Lalin Tunprasert, Mohamed A. El-Esawi, Blanche Aguida, Nathalie Jourdan, Kittisak Buddhachat, Marootpong Pooam   +9 more
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Chiral-induced spin selectivity in the formation and recombination of radical pairs: cryptochrome magnetoreception and EPR detection

New Journal of Physics, 2021
That the rates and yields of reactions of organic radicals can be spin dependent is well known in the context of the radical pair mechanism (RPM). Less well known, but still well established, is the chiral-induced spin selectivity (CISS) effect in which ...
Jiate Luo, P J Hore
doaj   +1 more source