Sentences with phrase «of oxygen metabolism»

Free radicals are natural by - products of oxygen metabolism that may contribute to the development of chronic diseases such as cancer and heart disease.

These two conventional nutrients play a critical role in our body's regulation of oxygen metabolism, and they are widely known for their role in helping lower our risk of oxidative stress.

Different factors, including the free radicals that are a byproduct of oxygen metabolism, result in Top1ccs becoming trapped on DNA and accumulating in cells.

Not exact matches

They also are rich in iron, which helps transport oxygen from the lungs to the rest of the body, and is integral for energy production and metabolism.

Lentils are also a good source of vegetarian iron, an essential mineral needed for oxygen transportation in the blood and for proper metabolism.

In addition, he is the co-author of more than 30 scientific publications in the areas of food processing, yeast metabolism, wine aroma and chemistry of oxygen in wine.

Most of the genes are involved in cells» ability to deal with oxidative stress, in which reactive oxygen products of metabolism harm cells.

HIF - 1 senses reduced oxygen levels and triggers many changes in cellular function, including a changed metabolism and sending signals for the formation of new blood vessels.

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.

These oxygen radicals interfere with cell activity and slow down metabolism, which promotes accumulation of fat in the cell.

Oxidative stress is caused when oxygen - free radicals and other byproducts of cell metabolism build up in cells.

Subsequently, energy is generated by the process of anaerobic metabolism, which does not require oxygen.

As a cofactor of certain proteins, it plays an essential role in oxygen transport and metabolism.

Slowing metabolism — and thus oxygen use — would delay or eliminate the formation of molecules that cause inflammation and cell death, he says.

One possibility, advanced by the Wisconsin team, is that restricting food consumption reduces the production of tissue - damaging oxygen free radicals that are a byproduct of food metabolism.

The critical oxygen level varied with the metabolic state of the tested crabs — which the researchers could raise by increasing the water temperature, feeding a crab a meal of menhaden, or using crabs infected with a parasite known to boost metabolism.

Results of their experiments show that — contrary to previous studies — blue crabs are «oxygen regulators» that can maintain a constant rate of aerobic metabolism until they reach a critical oxygen level.

A blue crab occupies the respirometer chamber during tests of oxygen consumption and metabolism at VIMS» Eastern Shore Laboratory.

Energy in the brain is generated almost exclusively from a form of metabolism that requires oxygen.

When temperatures drop below freezing, the frog's metabolism eases to a near halt, so its cells can survive on negligible amounts of oxygen and energy.

As oxygen increased in Earth's atmosphere and organisms became more complex, different forms of metabolism evolved, from plants» photosynthesis to the lesser - known chemolithotrophy.

Thus, chlorination can have important ecological functions related to the activity of microorganisms, such as dealing with dangerous oxygen radicals that form during metabolism, or being part of the chemical battle that the microorganisms are engaged in, in the competition for resources in the ground.

Free radicals, otherwise known as reactive oxygen species, are a byproduct of metabolism.

Crocodiles use a waste product of metabolism — the bicarbonate ions formed when carbon dioxide dissolves in water — as the trigger for haemoglobin to unload the oxygen it carries.

This efficient system of oxygen allocation, combined with the reptile's very slow metabolism, explains how it is able to survive underwater for so long.

During long periods of moderate exercise, aerobic metabolism does most of the work, using oxygen to turn sugar into energy, water, and CO2.

But organisms from humans to algae also have another clock that doesn't rely on rhythmic gene expression to keep time, but instead uses the rise and fall of the reactive oxygen molecules that are formed as natural byproducts of metabolism.

The principle is that, if no oxygen is present, the bacteria's metabolism changes to produce protons and electrons instead of carbon dioxide and water.

Life as we know it requires three primary ingredients: liquid water; a source of energy for metabolism; and the right chemical ingredients, primarily carbon, hydrogen, nitrogen, oxygen, phosphorus and sulfur.

They first recorded basal metabolism — the minimal numbers of calories needed to stay alive — by a method known as indirect calorimetry, which measures the amount of oxygen consumed and carbon dioxide produced.

Berenbrink and Cathrine Fagernes at the University of Oslo, Norway, and their colleagues discovered that the fish carry an extra set of the enzymes that specifically helps generate alcohol when metabolism occurs in the absence of oxygen (Scientific Reports, doi.org/cbq7).

Enhance learning and memory, especially under conditions of disturbed neural metabolism resulting from a lack of oxygen, electroshock or age - related changes

Also, in both cell culture and a mouse model of the condition, blocking the excessive splintering reduced production of reactive oxygen species, a potentially harmful byproduct of metabolism, as well as cell death.

When their waters get warmer, their metabolism accelerates and they need more oxygen to sustain their body functions,» said William Cheung, co-author of the study, associate professor at the Institute for the Ocean and Fisheries and director of science for the Nippon Foundation - UBC Nereus Program.

«Conversely, the necrotic part of the tumor is driven by a distinct set of glioma stem cells utilizing the BIM1 pathway and are characterized by a mesenchymal, inflammatory cell type dependent on glucose metabolism in the absence of oxygen.

A majority of these genes are involved in metabolism and presumably allow the amoeba to use bacterial metabolic pathways to adapt to the low oxygen environment of the gut.

Now, using a powerful laser scanning microscope, George Brooks, an exercise metabolism expert at the University of California, Berkeley, and colleagues demonstrate that lactic acid is present in rat muscle cells regardless of oxygen content.

Many bacteria produce methane as a byproduct of their metabolism, but most of these bacteria live in oxygen - poor environments such as the deep ocean or the digestive tract of animals — not near the ocean's surface.

Among the most interesting ones identified were those associated with 1) the large category of transport, and the more specific categories of carbohydrate transport and cation: amino acid symport; 2) several related to calcium, including calcium ion binding, calmodulin binding, and voltage gated calcium channel activity; 3) DNA damage response and signal transduction; 4) response to oxidative stress; and 5) oxygen and reactive oxygen species metabolism.

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.

Hemodynamic changes after visual stimulation and breath holding provide evidence for an uncoupling of cerebral blood flow and volume from oxygen metabolism.

Countering the prevailing theory that cellular hydrogen peroxide signaling is broad and non-specific, Whitehead Institute scientists have discovered that this reactive oxygen species (ROS) in fact triggers a distinct signal transduction cascade under control of the mitochondrial respiratory chain — the Syk pathway — that regulates transcription, translation, metabolism, and the cell cycle in diverse cell types.

Regardless of when the cyanobacteria appeared, it is widely accepted that they comprised the predominant form of life on early earth for some two billion years, and were responsible for the creation of earth's atmospheric oxygen, consuming CO2 and releasing O2 by photosynthetic metabolism.

The basic metabolism of a cell generates reactive oxygen species (ROS) which oxidize cellular lipids, proteins, and DNA leading to production of reactive electrophiles which can lead to deleterious consequences if not eliminated [1].

Oxygen Consumption measurements have become a key functional readout of cell metabolism and mitochondrial function, providing important insights into the cell function and role of perturbed metabolism in disease progression.

She calculated that the escape dives her team monitored in narwhals required 97 percent of the animal's oxygen supply and often exceeded its aerobic dive limit (meaning depletion of oxygen stores in the muscles, lungs, and blood, followed by anaerobic metabolism).

During the normal processes of metabolism the body generates what are called «reactive oxygen species» which are commonly referred to as «free radicals».

A lot of physiologists and coaches consider that a long warm up offers an increased anaerobic metabolism, an acceleration of oxygen uptake kinetics, an increase in muscle temperature, and a process known as postactivation potentiation of the muscles.

EFAs or essential fatty acids play a very important role in different body functions like cell maintenance, brain development, transportation of oxygen from the lungs to the bloodstream, regulation of metabolism and mood, regulation of insulin sensitivity, as well as hormone production.

Like most of its fellow cruciferous vegetables, cauliflower is also a very good source of manganese — a mineral antioxidant that is especially important in oxygen - related metabolism.