Tolerance adaptation physiological. Medical search. Frequent questions

In mammals, HVR invokes several physiological mechanisms. (wikipedia.org)
The physiological mechanisms differ in effect and in course of time. (wikipedia.org)
Conclusion: Our results establish indicate ed that leaf osmoregulation, K + retention, Na + exclusion, and ion homeostasis are the main physiological mechanisms conferring salinity tolerance of these cultivars, rather than the regulations of leaf antioxidative ability.As an index of salinity tolerance, K + /Na + ratio in leaves or roots can be used for the selective breeding of highland quinoa cultivars. (researchsquare.com)
In order to tolerate soil salinization conditions, besides anatomical and morphological plasticity, plants have evolved multiple physiological mechanisms, e.g., osmotic adjustment, increased antioxidant response, accumulation or exclusion of ions, and ion homeostasis to maintain plant growth. (researchsquare.com)
Plants have developed various mechanisms of their adaptation, to a greater or lesser extent, to drought. (intechopen.com)
Although hypoxic or ischemia tolerance in AGS involves physiological adaptations, little is known about the critical cellular mechanisms underlying intrinsic AGS cell resilience to metabolic stress. (elifesciences.org)
This presentation intends to provide insights into the mechanisms by which cold adaptation and acclimation is achieved in chill susceptible D. melanogaster flies.complete affiliation for HC: Unité d'Écologie et de Biogéographie, Biodiversity Research Centre, Université catholique de Louvain, Louvain-la-Neuve, Belgium. (univ-lyon1.fr)
Phenotypic traits of climate stress tolerance rely on a complex and intertwined set of physiological, molecular, and biochemical mechanisms. (cas.cz)
The physiological and molecular mechanisms of tolerance to osmotic and ionic components of salinity stress are reviewed at the cellular, organ, and whole-plant level. (nih.gov)
Evaluating how genetic variation influences phenotype is the ultimate objective of genetics, and using omics approaches can improve the understanding of heat tolerance-governing mechanisms. (cgiar.org)

By understanding the different types of natural selection and the selection pressures they impose, we gain valuable insights into the complexities of adaptation and the remarkable ways in which organisms evolve. (tagvault.org)
The rising levels of carbon in our atmosphere are causing adaptations in many organisms throughout the globe, mainly due to its effective heat-trapping ability. (trinitynews.ie)
A common physiological response of organisms to environmental stresses is the increase in expression of heat shock proteins (Hsps). (univ-lyon1.fr)
Over the last three decades, an increasing interest in how climate change will affect life on earth has motivated many comparative physiologists to focus their research on the effects of Anthropogenic drivers (mainly represented by climate change and pollution) on the physiological performance of their study organisms in order to identify critical thresholds and tipping points for their sustainable existence or mere survival. (easychair.org)
The physiological performance of organisms depends on their environmental context, resulting in performance-response curves along environmental gradients. (lu.se)

Anatomic Variation , available until 2013 in the H category - Disciplines and Occupations, H01 subcategory - Anatomy (H01.158.100.045), in 2014 it was moved to the G category - Phenomena and Processes , subcategory, G07 subcategory - Physiological Phenomena. (bvsalud.org)

We also studied the effect of climate on communities and addressed three questions: how species partition the same resource, how temperature affects constraints and trade-offs between behavioural, physiological, morphological and life history traits, if plasticity and thermal tolerance are under selection by temperature. (europa.eu)
Mapping Switchgrass Traits with Common Gardens The combination of field data and genetic information has allowed researchers to associate climate adaptations with switchgrass biology. (doe.gov)
Genetic variations in physiological and molecular traits proved to be the major components for breeding programs to augment the gene pool. (cgiar.org)
Variation in root and shoot traits associated with drought tolerance were analyzed to provide an integrated view of factors that underlie the drought tolerance of sorghum. (preprints.org)
Various root and shoot traits associated with drought tolerance were recorded. (preprints.org)
We have designed and analysed an eco-evolutionary and functional-trait-based model of three interacting trophic levels and we have simulated adaptation and diversification in traits as a response to eco-evolutionary feedbacks. (lu.se)

These are expressed, on the molecular level, by changes of gene expression and of protein content, together with responses at physiological and morphological levels. (intechopen.com)

Tolerance or adaptation to some effects of a drug might occur independently from those responses which are sought by the user. (druglibrary.org)
However, although the adaptation of plants to drought has been widely studied, the anatomical features of wood influencing the functional responses of plants to drought are still lacking at the intraspecific level, especially for species with a wide geographical distribution. (frontiersin.org)
Whole plant SOD responses to heat shock were not correlated with relative heat tolerance. (usda.gov)
This experiment aimed to investigate the efficacy of twice-daily, nonconsecutive heat acclimation (TDHA) in comparison to once-daily heat acclimation (ODHA) and work matched once- or twice-daily temperate exercise (ODTEMP, TDTEMP) for inducing heat adaptations, improved exercise tolerance, and cytokine (immune) responses. (edu.hk)

2022). Key discoveries include genetic evidence that this small forest mammal has survived in high-latitude "northern" glacial refugia near the Carpathians, in areas previously considered uninhabitable for forest species, or haemoglobin genes that confer resistance to oxidative stress, which is important for adaptation to climate change. (cas.cz)
Building on our work on haemoglobin, this line of research aims to unravel genes and regulatory networks involved in adaptation of resistance to oxidative stress. (cas.cz)

Heat acclimatization is a temporary physiological adaptation that improves tolerance and dissipation of heat with repeated exposure to hot environments. (cdc.gov)
Acclimatization is the result of beneficial physiological adaptations (e.g., increased sweating efficiency, etc.) that occur after gradual increased exposure to a hot environment. (cdc.gov)

In biological anthropology, HVR also refers to human adaptation to environmental stresses resulting from high altitude. (wikipedia.org)
Physical training is a process consisting of a series of physiological stresses that bring about or preserve specific adaptations to enhance a subject's ability to tolerate the stressing factors arising from training (8,16,30,52) . (lww.com)

Results: Substantial variations were found in plant size (biomass) and overall salinity tolerance (plant biomass in salt treatment as % of control) among the different quinoa cultivars. (researchsquare.com)
Across different salinity levels and cultivars, without close relationships with antioxidant enzyme activities (SOD, POD, or CAT), salinity tolerance was significantly negatively correlated with leaf organic solute and malondialdehyde contents in leaves and inorganic ion contents in leaves or roots ( not except for root K + content), but positively correlated with K + /Na + ratio in leaves or roots. (researchsquare.com)
Being a physiologically and genetically complex trait, salinity tolerance is associated with multiple subtraits (e.g. osmotic balance, ion homeostasis, and reactive oxygen species regulation), each having a complex and less understandable genetic basis [1]. (researchsquare.com)
Molecular genetics and functional genomics provide a new opportunity to synthesize molecular and physiological knowledge to improve the salinity tolerance of plants relevant to food production and environmental sustainability. (nih.gov)

HIF-1 induces many physiological changes that help the body adapt to the lower availability of oxygen including angiogenesis, increased erythropoietin production, and promoting anaerobic metabolism. (wikipedia.org)

Several experiments have shown that experienced or heavy cannabis users may exhibit smaller reactions on certain physiological, behavioural and psychological measures than do novices or light users with standard doses;305,407,430,431,436,660 but others have not found such a difference.519 There is evidence in Commission experiments of a complex relationship between the frequency of cannabis use and the overall response to marijuana, THC and placebo in the laboratory. (druglibrary.org)

We are also working on induction of abiotic stress tolerance by seed priming and foliar application of synthetic and natural growth enhancer especially in wheat, rice and maize against salinity and drought. (edu.pk)

Chronic hypoxia results in further physiological changes due to the transcription factor hypoxia-inducible factor (HIF). (wikipedia.org)
Before and after the training intervention, subjects completed a test protocol consisting of a bout of submaximal constant-work-rate exercise, a 24-s high-intensity exercise bout to quantify the phosphocreatine recovery time constant, and an incremental test to the limit of tolerance.The tests were completed in normoxia and hypoxia in both INT and IHT legs. (altitudecentre.com)
Preliminary results suggest a role for genes previously implied in adaptation to hypoxia at high altitudes. (cas.cz)

A high metabolic rate may be an adaptation to cold climates allowing them to sustain physiological processes at low temperatures. (europa.eu)
Addressing those 'big questions' of high societal relevance have the merit of creating high visibility and also funding opportunities, however, classic comparative physiology and biochemistry is running the risk of becoming marginalized in this process, if the underlying physiological and biochemical processes cannot be visualized accordingly. (easychair.org)
One aspect of our work focuses on identifying genes and biological processes underlying physiological adaptation to different environmental conditions in bank vole populations that have occupied new habitats as a consequence of end-glacial climate change. (cas.cz)

Metal tolerance in plants. (nature.com)
In this chapter, we present research that provides an insight into the morpho-physiological adaptation and its underlying molecular changes in common bean plants exposed to drought. (intechopen.com)
As the effects of climate change become ever-more threatening to life on Earth, there are plenty of eyes being thrown on finding the most effective natural adaptation for plants in this warming world. (trinitynews.ie)
All of these affect plants either directly (plant physiological tolerance) or indirectly (ecological interactions with other species such as pollinations). (trinitynews.ie)
Heavy Metal Toxicity in Plants: Physiological and Molecular Perspectives highlights the various metal induced impacts on plants and adaptation strategies employed to avoid these stressful conditions. (routledge.com)
Harnessing genetic variability is the key factor in the adaptation of plants to ever-rising temperature. (cgiar.org)

There are some obvious examples of plant adaptations to climate change in the world today. (trinitynews.ie)
However, we have a limited molecular understanding of the overall control of Na(+) accumulation and of osmotic stress tolerance at the whole-plant level. (nih.gov)
Since herbivore attack can be highly variable across plant tissues, we hypothesized that correlations in toxin expression within and between plant tissues may limit population differentiation and, thus, plant adaptation. (bvsalud.org)

Adaptations in populations living at high altitudes range from cultural to genetic, and vary among populations. (wikipedia.org)

Experimental work started with short term single driver experiments but soon developed to include multiple drivers and sometimes even successive generations in an attempt to address as much of climate change's complexity as possible and include adaptive, trans-generational aspects to project physiological reaction norms into the future. (easychair.org)
In this way, it is possible to predict the extent to which the adaptation of individual populations will be disrupted and to assess the extent to which the adaptive variation needed to reverse the maladaptation will be available. (cas.cz)
The adaptive Zn tolerance in S. bovinus is therefore achieved by a preferential removal of Zn out of the cytoplasm, back into the apoplast, instead of the usual transfer of Zn into the vacuole. (lu.se)
Adaptive functional trait matching between species that engage in mutualistic interactions are promoted whereas adaptation to the abiotic environment becomes less pronounced. (lu.se)

If one talks about adaptation as an evolutionary process, then to cope with the impact of climate change, this would entail having the ability to change. (trinitynews.ie)

On Zn-polluted soils, populations of the ectomycorrhizal basidiomycete Suillus bovinus exhibit an elevated Zn tolerance when compared to populations on non-polluted sites. (lu.se)

In contrast to most grasses, D. lanuginosum shows high tolerance to the temperature stress, UV irradiation and dehydration associated with these environmental conditions. (usda.gov)
We include our contribution to establishing the basis for breeding of common bean with greater tolerance to this abiotic stress that uses molecular markers and identification of quantitative trait loci (QTLs). (intechopen.com)
In this presentation I will describe transcriptional patterns of some genes (Hsps, Frost and Stravin) with respect to cold stress and I will discuss their roles in cold tolerance of Drosophila melanogaster. (univ-lyon1.fr)
Such different abilities to cope with heat stress must lie in their physiological makeup. (open.edu)
Once- and twice-daily heat acclimation conferred similar magnitudes of heat adaptation and exercise tolerance improvements, without differentially altering immune function, thus nonconsecutive TDHA provides an effective, logistically flexible method of HA, benefitting individuals preparing for exercise-heat stress. (edu.hk)
Effects of other factors (drugs, alcohol, obesity, etc.) on tolerance to occupational heat stress. (cdc.gov)

It is uncertain whether the alleged sensitization effect often reported is due to an initially poor smoking technique, some learning, conditioning, or psychological adaptation process (see previous discussion of Becker's work39,42), the induction of enzymes producing an active metabolite, an accumulation of cannabinoids in the body over time, some molecular pharmacological receptor sensitization, or perhaps a combination of these. (druglibrary.org)
A primary aim is to further our fundamental understanding of the regulation and adaptation of the cardiovascular, respiratory and neuromuscular systems to exercise and training, as well as the physiological, biomechanical and psychological limitations to human sports performance and exercise tolerance. (prospects.ac.uk)

Intermittent hypoxic training (IHT) is sometimes used by athletes to enhance non-hematological physiological adaptations to simulated altitude. (altitudecentre.com)

Each Aphidius species had thermal tolerances matching their seasonal activity and differed in tolerance and resistance to extreme temperatures. (europa.eu)

Cold tolerance is highly a plastic trait that can vary according to numerous endogenous and exogenous factors, including thermal acclimation. (univ-lyon1.fr)

Immunological tolerance to developmental sperm antigens is not induced in males, because spermatogenesis begins first in the testis on puberty, much after the establishment of tolerance to self-antigens. (benthamscience.com)

Here we report that RNAi-mediated suppression of Oryza sativa GRXS17 ( OsGRXS17 ) improved drought tolerance in rice. (mcmaster.ca)
Drought decreases grain yield of sorghum [Sorghum bicolor (L.) Moench], and understanding the mechanism(s) related to drought tolerance is critical for sustaining sorghum production. (preprints.org)

These data can then be compared against available information on physiological adaptations across levels of organisation, from mitochondria at the subcellular level to energy consumption and cold/heat tolerance at the organismal level. (lu.se)

300 mM NaCl), but salt tolerance between seed germination and seedling growth is was not closely correlated. (researchsquare.com)

It has recently been demonstrated, using radio-active tracer techniques, that certain metabolites of THC may remain in the body in significant quantities for several days, or longer, after use.360,361 The possible role of this retention and possible accumulation of metabolites in the development of either sensitization or tolerance is unclear. (druglibrary.org)
Ultimately, knowledge of how to control their accumulation will enable development of new approaches to improve crop heat tolerance. (usda.gov)

Tolerance is said to develop when the response to the same dose of a drug decreases with repeated use. (druglibrary.org)
Parasite performance-response curves are generally expected to be broader than those of their hosts due to shorter generation times and hence faster adaptation. (lu.se)
This occurswhen physiological tolerance is surpassed (response to the action performed), leading to alterations in the dentition, musculature and temporomandibular joint 8 . (bvsalud.org)

and there is growing evidence that some tolerance develops with chronic use. (druglibrary.org)

Knowledge of the physiological adaptations that enable panic grass to survive at temperatures that would be lethal to wheat will be helpful in improving heat tolerance of wheat and other cool season grain and seed crops. (usda.gov)

Workers should be made aware of the many risk factors that may affect their heat tolerance. (cdc.gov)
Improving heat tolerance of these crops will reduce weather-associated cropping risks. (usda.gov)

However, as this classic Open University video makes clear, the camel handles its water balance better than humans do, as well as having other adaptations that help it survive in a desert ecosystem. (open.edu)

On the other hand, inherent to the concept of training adaptation is the principle of training reversibility or detraining, according to which the stoppage or marked reduction of training leads to a partial or complete reversal of training-induced adaptations, thus compromising athletic performance (8,23,41) . (lww.com)

The D. lanuginosum isolate that displayed the greatest tolerance retained SOD activity while leaf SOD activity was significantly reduced in the isolate showing the least tolerance. (usda.gov)

In addition, the molecular basis of thermal adaptation is not well understood, although a number of candidate genes have been proposed. (univ-lyon1.fr)

This study investigated whether IHT would result in greater improvements in muscle energetics and exercise tolerance compared with work matched intermittent normoxic (sea level) training (INT). (altitudecentre.com)

Gross tolerance to the major effects of cannabis does not ordinarily occur in humans with moderate or intermittent use, but there are many subtle aspects of this topic which have yet to be clarified. (druglibrary.org)

Many investigators have observed that in some individuals there appears to be a 'reverse tolerance', or 'sensitization' after initial use.41,248,314,358,576,578,661 In other words, smaller doses may produce the desired effects after the person has become familiar with the use of the drug. (druglibrary.org)
This would suggest that some sort of differential selective adaptation or tolerance may develop to some of the initially disrupting effects. (druglibrary.org)
But for man, the upper limit of tolerance is only 15% of his body weight before serious side effects are seen to interfere with blood circulation. (open.edu)
Studies on the physiological effects of sulfamic acid and ammonium sulfamate. (cdc.gov)

Self-administration of increased doses would not ordinarily be expected unless tolerance had developed to those specific aspects of the drug reaction which were reinforcing or rewarding its use. (druglibrary.org)
I am working on physiological aspects of seed development and enhancement. (edu.pk)

The panel of experts reviewed the pertinent physiological, epidemiologic, and clinical evidence, including primary research articles and recent review articles. (cdc.gov)

Anatomy27

Organisms20

Diseases16

Chemicals and Drugs28

Analytical, Diagnostic and Therapeutic Techniques and Equipment41

Psychiatry and Psychology25

Phenomena and Processes110

Disciplines and Occupations2

Anthropology, Education, Sociology and Social Phenomena3

Technology, Industry, Agriculture3

Information Science10

Health Care13

Geographicals1

Mechanisms10

Organisms5

Phenomena1

Traits6

Morphological1

Responses4

Oxidative stress2

Acclimatization2

Stresses2

Salinity tolerance4

Metabolism1

Behavioural1

Abiotic stress tolerance1

Hypoxia3

Processes3

Plants6

Plant3

High altitudes1

Adaptive4

Climate change1

Populations1

Stress6

Psychological2

Hypoxic1

Species1

Acclimation1

Developmental1

Drought tolerance2

Subcellular1

Salt tolerance1

Accumulation2

Response3

Chronic1

Temperatures1

Heat2

Survive1

Performance1

Isolate1

Genes1

Improvements1

Occur1

Effects4

Aspects2

Research1