Results 51 to 60 of about 860,227 (306)

Molecular and genetic mechanisms of physiological adaptations in high- altitude natives Molecular and genetic mechanisms of physiological adaptations in high- altitude natives [PDF]

open access: yesفصلنامه ابن سینا, 2019
Physiological properties of adaptation to chronic hypoxia can help the high-altitude natives to overcome oxygen limitations. The protective effects of high altitudes have also been confirmed in experimental studies using the hypobaric chamber.
Abolfazl Khademi   +3 more
doaj  

Evolution of adaptation mechanisms: adaptation energy, stress, and oscillating death

open access: yes, 2016
In 1938, H. Selye proposed the notion of adaptation energy and published "Experimental evidence supporting the conception of adaptation energy". Adaptation of an animal to different factors appears as the spending of one resource.
Gorban, A. N.   +3 more
core   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Behavioral and Physiological Adaptation to Soil Moisture in the Overwintering Larvae of the Rice Stem Borer in the Subtropics

open access: yesAgriculture, 2023
Diapausing larvae of the rice stem borer, Chilo suppressalis Walker, overwinter in rice stubble. During overwintering, the larvae may move to sites with suitable moisture and undergo physiological changes to prepare for the declining temperature.
Changgeng Dai   +4 more
doaj   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Photochemical, Anatomical, and Growth Changes in Cassava Cultivars after Application of Post-Emergent Herbicides

open access: yesAgriculture, 2022
Plants develop a series of adaptive mechanisms capable of tolerating the action of herbicides; however, little is known about the physiological mechanisms developed by cassava.
Jania Claudia Camilo dos Santos   +8 more
doaj   +1 more source

The Impact Of Spike-Frequency Adaptation On Balanced Network Dynamics [PDF]

open access: yes, 2018
A dynamic balance between strong excitatory and inhibitory neuronal inputs is hypothesized to play a pivotal role in information processing in the brain.
Barranca, Victor J.   +2 more
core   +2 more sources

DNA Binding in High Salt: Analysing the Salt Dependence of Replication Protein A3 from the Halophile Haloferax volcanii [PDF]

open access: yes, 2012
Halophilic archaea maintain intracellular salt concentrations close to saturation to survive in high-salt environments and their cellular processes have adapted to function under these conditions.
Bunting, KA, Patoli, B, Winter, JA
core   +2 more sources

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

Analysis of the Alterations in Symbiotic Microbiota and Their Correlation with Intestinal Metabolites in Rainbow Trout (Oncorhynchus mykiss) Under Heat Stress Conditions

open access: yesAnimals
Global warming represents one of the most pressing environmental challenges to cold-water fish farming. Heat stress markedly alters the mucosal symbiotic microbiota and intestinal microbial metabolites in fish, posing substantial barriers to the healthy ...
Changqing Zhou, Fengyuan Ding
doaj   +1 more source

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