Sentences with phrase «of low oxygen conditions»

The metadata also details cryopreserved cells and cell lines that can be used to study the molecular effects of low oxygen conditions in the laboratory

They discovered that the geese had a remarkable tolerance of low oxygen conditions — at rest and while they were exercising for 15 minutes at top speed — at oxygen levels that would render most humans completely immobile.

Not exact matches

Glycolysis flourishes in low - oxygen conditions, characteristic of cancerous tumours and characteristic of conditions on the ancient Earth.

Low oxygen conditions under vacuum packaging can minimize oxidative deterioration of meat and inhibit aerobic microbial growth.Also, in order to extend meat display life using nitriteembedded film (NEF) are used.

During 2016/17, environmental water holders were presented with an unexpected challenge, as many lowland rivers in the southern and central regions of the Murray - Darling Basin were subject to low oxygen conditions following widespread natural flooding.

Landon was diagnosed with hypernatremic dehydration (a high concentration of sodium in the blood), cardiac arrest from hypovolemic shock (a condition where the liquid portion of the blood is dangerously low), and hypoxic - ischemic encephalopathy (a brain injury caused by oxygen deprivation).

This over-the-counter painkiller in rare cases may cause methemoglobinemia, a serious or life - threatening condition that lowers the level of oxygen in the bloodstream.

In rare instances, benzocaine can cause methemoglobinemia, a serious condition in which the amount of oxygen in the blood drops dangerously low.

A central factor improving the oxygen situation from last year was that the eutrophic, low - oxygen deep water from the main basin has not flowed into the Gulf of Finland in the weather conditions of the past summer, unlike in the spring of 2014, for example.

Hypoxia - inducible factor 1α (HIF - 1α), an oxygen sensor that controls the expression of various genes for glucose metabolism under conditions of low oxygen levels, is the most well documented substrate of the von Hippel - Lindau (VHL) enzyme.

Thanks to evolution, the animals living there have adapted to these conditions and will have little chance to adjust when the combination of warming and lower oxygen levels hits.

«Similar to the «dead zone» nowadays spreading in the Gulf of Mexico, the soil crisis could have caused a worldwide expanse of uninhabitable low - oxygen conditions in shallow waters,» explains team member Henk Visscher of Utrecht University in the Netherlands.

RoR dams can cause a spike in methylmercury in two ways — they can form small reservoirs, called headponds, which flood soil and create slow - flowing, low - oxygen environments; or they can create higher temperatures in the stream as a result of the reduced flow conditions when portions of the stream are diverted to the turbines.

The Rho - kinase inhibition stimuli under low oxygen conditions (of 5 percent oxygen atmosphere), which is a condition corresponding to conditions in the body's cartilage, produced a more effective increase in chondrocyte - specific gene expression and synthesis of extracellular matrix components by HCS - 2 / 8 cells.

Zeroing in on NANOG, the scientists found that low oxygen conditions increased NANOG's mRNA levels through the action of HIF proteins, which turned on the gene for ALKBH5, which decreased the methylation and subsequent destruction of NANOG's mRNA.

Recent studies showed that low oxygen conditions increase levels of a family of proteins known as HIFs, or hypoxia - inducible factors, that turn on hundreds of genes, including one called NANOG that instructs cells to become stem cells.

This ability to withstand stresses, such as low oxygen conditions and a dearth of calories, may allow animals to live longer.

The U of G researchers found that it is precisely under conditions of low oxygen that cancer cells trigger the production of cadherin - 22, putting in motion a kind of protein boost that helps bind cells together, enhancing cellular movement, invasion and likely metastasis.

Results of a new study led by researchers at William & Mary's Virginia Institute of Marine Science show that adult blue crabs are much more tolerant of low - oxygen, «hypoxic» conditions than previously thought.

The most recent finding: Even short exposures to high elevation can unleash a complex cascade of changes within red blood cells that make it easier for them to cope with low - oxygen conditions.

Mangrove rivulus, which can live out of the water for extended periods of time (days or weeks, as long as the conditions are moist), uses its specialised jumping technique when water has low oxygen concentrations or high levels of hydrogen sulphide, or to escape predators and search for terrestrial prey such as crickets.

Dr Hawkes, formerly of Bangor University, added: «The wider implications of these findings are for low oxygen medical conditions in humans, such as heart attack and stroke — suggesting what adaptations might help prevent problems in the first place and learning how animals have managed to cope with really extreme environments.»

Exposure to low - oxygen air sends EPO levels soaring in normal mice, but these conditions did not induce a rise in the hormone in the animals without HIF - 1α, the researchers report in the 18 April issue of Cell.

«Some of those also have low - oxygen conditions inside them,» he says, «but ultimately they didn't turn out to be a major methane source either.»

Desmond Tobin, a cell biologist at the University of Bradford in the U.K., says that the findings, together with a recent study that found that EPO and HIF - 1α levels increase in human hair under low - oxygen conditions, support the notion that human skin responds to oxygen.

Schuerger has tried to grow hundreds of species of bacteria and fungi in the cold, low - pressure and low - oxygen conditions found on Mars.

Damian Bailey, a physiologist at the University of South Wales, Pontypridd, in the United Kingdom and the project's lead scientist, hopes the risky experiment will yield new information about how the human body responds to low - oxygen conditions, and how similar mechanisms might drive cognitive decline with aging.

«Our current studies were conducted in mice, but we hope that one day we will be able to take advantage of the body's natural response to low blood oxygen levels with drugs that mimics low oxygen conditions.

Perhaps the ultimate solution to keeping transplanted stem cells alive will be to use helpers that give off a cocktail of growth factors, he suggests, as well as pre-conditioning for low oxygen conditions and scaffolds.

Lowest readings of dissolved oxygen were found in late summers, as is the case in other estuaries along the Oregon coast, when incoming salty seawater settles longer in the estuary and warmer, drier conditions reduce the amount of fresh water from the Coos River.

Our results demonstrate that despite cold temperatures and low - oxygen conditions, hunter - gatherers colonized extreme high - altitude Andean environments in the Terminal Pleistocene, within about 2 ky of the initial entry of humans to South America.»

Methane from freshwater is often a byproduct of bacterial metabolism, as they break down organic matter under low - oxygen conditions, like in the sediment at the bottom of a lake.

Without new supplies of oxygen - rich water, conditions in lower coastal waters — where bacteria are feeding — can become suffocating.

Mootha and his team had hoped to find benefits for more moderate low - oxygen conditions, such as intermittent periods of hypoxia or slightly higher levels of oxygen.

Known as the «sulfur pearl of Namibia,» this anaerobic species digests organic matter under low - oxygen (or no - oxygen) conditions that are caused by high rates of phytoplankton growth in the Benguela upwelling zone, and the subsequent decay of large masses of dead phytoplankton that have fallen to the seafloor.

This dataset identifies what animals were sampled and the details of what biosamples were collected to test the hypothesis that signaling modifications prevent local blood vessel changes under low oxygen conditions, thereby allowing the centrally mediated diving reflex to override local perfusion control.

Many of the bacterial species in the young children with CF, he noted, were «anaerobic» microbes that thrive in conditions of very low oxygen.

The more minerals you lose, the greater the risk becomes for conditions such as osteoporosis, coronary artery disease, high blood pressure and a long list of degenerative diseases which are associated with low oxygen and mineral levels such as accelerated aging.

In a laboratory animal study published in the December 2011 issue of the «British Journal of Neurosurgery,» a combination of avocado and soybean fats prevented oxidation and protected against nerve damage after the animals were exposed to low - oxygen conditions.

Anemia is an extremely common condition of low blood cells and hemoglobin, resulting in poor oxygen delivery to the body and symptoms of fatigue.

Silled basins in humid areas such as Kau Bay (Indonesia), the Baltic Sea, and the Black Sea, are particularly sensitive to low oxygen conditions because of salinity stratification and associated reduced vertical mixing (Kemp et al., 2009).

report that ocean sediment cores containing an «undisturbed history of the past» have been analyzed for variations in PP over timescales that include the Little Ice Age... they determined that during the LIA the ocean off Peru had «low PP, diatoms and fish,» but that «at the end of the LIA, this condition changed abruptly to the low subsurface oxygen, eutrophic upwelling ecosystem that today produces more fish than any region of the world's oceans... write that «in coastal environments, PP, diatoms and fish and their associated predators are predicted to decrease and the microbial food web to increase under global warming scenarios,» citing Ito et al..

Global warming is implicated in the loss of Arctic ozone because greenhouse gases trap energy lower down, heating up the atmosphere nearer the ground but cooling the stratosphere, creating conditions conducive to the formation of the reactive chemicals that break apart the three - oxygen molecules of ozone.

Low oxygen conditions slow decay rates, resulting in much of the carbon accumulating in the soil.

In fact, certain of TEPCO's actions in the aftermath of the explosions have been confused and, some might opine, lacking discipline of purpose to the extent that expedient decisions have been made without proper forethought and judiciousness to avoid knock - on consequences: for example, the injection of seawater may have resulted in salt deposits sufficient to foul cooling flows in the lower regions of the RPV [reactor pressure vessel]; the liberation of hydrogen from seawater is more rampant than from freshwater and radiolysis of oxygen from the cooling water could provide stoichiometric conditions and ignition with hydrogen in the absence of air in the containments; and the latest and most recent announcement to deploy a nitrogen purge to the Unit 1 reactor seems yet another ill - explained and unjustified desperate measure».