Sentences with phrase «changed by oxidation»

It also acts as an anti-oxidant by reducing damage to cells caused by free radicals (molecules which have been changed by oxidation and cause damage to cells).

Not exact matches

Twenty common amino acids exist in nature, but are altered by carbon - hydrogen oxidation reactions to change their shape or add functional groups such as alcohols or carboxylic acids.

This new study, published in the journal Environmental Science & Technology, furthered this research by examining the changes in physical properties of these aerosols due to aging, or oxidation, provoked by ozone or other oxidizing agents.

This means that it does not follow the redox cycle that most antioxidant do e.g. vitamin C. Redox cycle is a cycle of changing a cell's state by oxidation.

And since the link between oxidative and non-oxidative pathways, and heart rate is mediated by hormone levels, aerobic function isn't really going to be mediated by cardiovascular fitness: the hormonal changes that result in a reduction of oxidation and increase in anaerobic function occur at a very high heart rate reserve (long, long before your cardiovascular fitness maxes out).

Scientists have identified multiple mechanisms by which green tea extract helps protect against LDL oxidation, neuronal degradation, and a host of other structural and functional age - related changes.

[1] Ketogenic diet benefits body composition and well - being but not performance in a pilot case study of New Zealand endurance athletes https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5506682 [2] Ketogenic low - carbohydrate diets have no metabolic advantage over nonketogenic low - carbohydrate diets https://academic.oup.com/ajcn/article/83/5/1055/4649481 [3] Energy expenditure and body composition changes after an isocaloric ketogenic diet in overweight and obese men https://academic.oup.com/ajcn/article/104/2/324/456464 [4] Ketones block amyloid https://www.ncbi.nlm.nih.gov/pubmed/26923399 [5] Ketones Inhibit Mitochondrial Production of Reactive Oxygen Species Production Following Glutamate Excitotoxicity by Increasing NADH Oxidation https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1865572/ [6] The ketogenic diet may have mood - stabilizing properties https://www.ncbi.nlm.nih.gov/pubmed/11918434 [7] The antidepressant properties of the ketogenic diet http://www.ncbi.nlm.nih.gov/pubmed/15601609

Oxygen uptake and carbon dioxide production were measured by using a respiratory chamber to assess changes in energy expenditure, respiratory quotient (RQ; CO2 produced / O2 consumed), and carbohydrate and lipid oxidation rates, respectively.

While plasma glucose, insulin, and carbohydrate oxidation did not change significantly, plasma free fatty acid levels rose from 432 ± 31 to 848 ± 135 µEq / liter and were accompanied by significant increases in fat oxidation during the last hour of the test.

What would affect atmospheric CO2 directly is the changes in the total amount of stored C in vegetation and soil, which is changed by imbalances between C - fixation and respiration / decomposition / oxidation.

The balance between methane production and its oxidation within these environments before it can be released to the atmosphere, both of which are affected by temperature and hydrology, is crucial to understanding the response of these systems to climate change.

I think that the cyanobacteria took a very grave risk by ignoring he cautionary warnings of the Interplanetary Panel on Changes in the Oxidation States of Planets.

Stored chemical energy obtained by the oxidation of carbon and hydrogen, will be our main source of energy long after this climate change insanity is rotting on the trash heap of history.

Ozone values are modeled changes relative to 1980 from simulations with greenhouse gas (GHG) increases alone (blue), GHG increases and the additional water vapor produced by methane oxidation (red), and GHG increases with water vapor from both methane oxidation and increased transport from the troposphere (green).