نتایج جستجو برای: dehydration physiology

تعداد نتایج: 102446  

Journal: :Plant, cell & environment 2006
Horst Röhrig Jürgen Schmidt Thomas Colby Anne Bräutigam Peter Hufnagel Dorothea Bartels

Reversible phosphorylation of proteins is an important mechanism by which organisms regulate their reactions to external stimuli. To investigate the involvement of phosphorylation during acquisition of desiccation tolerance, we have analysed dehydration-induced protein phosphorylation in the desiccation tolerant resurrection plant Craterostigma plantagineum. Several dehydration-induced proteins...

2017
Thomas P Ferrand Nadège Hilairet Sarah Incel Damien Deldicque Loïc Labrousse Julien Gasc Joerg Renner Yanbin Wang Harry W Green Ii Alexandre Schubnel

Intermediate-depth earthquakes (30-300 km) have been extensively documented within subducting oceanic slabs, but their mechanics remains enigmatic. Here we decipher the mechanism of these earthquakes by performing deformation experiments on dehydrating serpentinized peridotites (synthetic antigorite-olivine aggregates, minerals representative of subduction zones lithologies) at upper mantle con...

2005
LOIS E. TUCKER

Experiments using Na-uptake and serial sampling techniques showed that during dehydration Na was taken up by the fat body in adult Periplaneta americana, but not in nymphs. Generally, accumulation of Na in the fat body was highest in animals which had little reserve lipid and in those which excreted the smallest amounts of Na during the dehydration period. Dehydration caused little change in th...

Journal: :The Yale Journal of Biology and Medicine 2009
Shelby Montague

Animal Physiology differs from the typical physiology textbook in that it describes the principles of physiology that underlie all animals, rather than focusing exclusively on humans. It provides a comprehensive overview of physiological systems in a wellorganized and concise manner by moving between description of general principles of physiology and specific examples of these principles from ...

2015
Christopher C. Barney Elizabeth M. Schanhals Justin L. Grobe Bradley T. Andresen Michael Traver

The effects of heat acclimation on water intake and urine output responses to thermal dehydration and other thirst stimuli were studied in male Sprague-Dawley rats. Rats were heat acclimated by continuous exposure to a 34°C environment for at least 6 weeks. Thermal dehydration-induced thirst was brought about by exposing the heat-acclimated rats and control rats housed at 24°C to a 37.5°C envir...

Journal: :Clinical physiology and functional imaging 2007
Lars Schwabe Gabor Szinnai Ulrich Keller Hartmut Schachinger

Enhanced hydration increases the human cardiovascular reactivity to mental stress. If reduced water intake has the opposite effect, this would suggest controlling for water deprivation when studying such responses. Blood pressure, heart rate and parasympathetically dominated beat-to-beat heart rate fluctuations were assessed during resting baseline and mental stress. Two challenging cognitive-m...

Journal: :Journal of integrative plant biology 2008
Hong-Yan Cheng Song-Quan Song

The relationships among desiccation sensitivities of Antiaris toxicaria seeds and axes, changes in activities of superoxide dismutase (SOD), ascorbate peroxidase (APX), catalase (CAT), glutathione reductase (GR) and dehydroascorbate reductase, (DHAR), production rate of superoxide radical (.O(2) (-)), and the contents of hydrogen peroxide (H(2)O(2)) and thiobarbituric acid (TBA)-reactive substa...

Journal: :Annals of nutrition & metabolism 2017
Nathalie Pross

BACKGROUND In the last 10 years, there has been an increase in the publication of literature dealing with the effects of mild dehydration on cognition in healthy adults. Fewer studies, leading to less consistent data, involved other age groups. SUMMARY In healthy young adults refraining from drinking or participating in dehydration protocols, it was found that mild dehydration had no impact o...

Amir Hussein Asgari Safdar, Hussein Daghigh Kia Ramin Farhadi

Labor is a physiological event involving a sequential, integrated set of changes within the myometrium, deciduas, and uterine cervix that occur gradually over a period of days to weeks. Biochemical connective tissue changes in the uterine cervix appear to precede uterine contractions and cervical dilation, and all of these events usually occur before rupture of the fetal membranes. In other wor...

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