Sentences with word «aldehyde»

I therefore agree that drinking kombucha could increase the flux of aldehydes through the body, but I do not see it as intrinsically any more dangerous than meeting our essential caloric needs by consuming carbohydrates and fat.

They found that cyclophosphamide kills all of the donor's transplanted bone marrow cells except for stem cells containing high levels of an enzyme called aldehyde dehydrogenase (ALDH).

In this post, I will address the question of whether we should avoid kombucha and other fermented foods because their content of chemicals known as aldehydes makes them toxic.

Conklin cited a range of supporting research, which has found that exposure to e-cigarette aerosols or tobacco smoke increases the levels of toxic aldehyde metabolites found in the urine in mice.

Additionally, when oil is heated to high temperatures over an extended period of time, poisonous substances called aldehydes form (11), not to mention the excess calories added due to the oil that is absorbed into the food during the cooking process.

Instead of a hydrophilic alcohol group (an oxygen - hydrogen molecule bound to a hydrogen - saturated carbon atom), the final lignin polymer contained a hydrophobic aldehyde group (a carbon atom double - bonded to an oxygen atom).

It starts with the formation of hydroperoxides which then decompose to form aldehydes which have a pungent, disagreeable flavor and odour.

The scientists identified the two new aldehydes by detecting a number of frequencies of radio emission in what is termed the K - band region (18 to 26 GHz) of the electromagnetic spectrum.

A scanning electron micrograph (SEM) of DT - 40 cells adhered to glass and fixed with aldehydes.

«We wanted to see if there was a difference in the lignin - hemicellulose network if you substituted water - resisting aldehydes in the lignin for water - attracting alcohols,» said Loukas Petridis, an ORNL staff scientist.

Nakano and colleagues found that one form of the enzyme aldehyde dehydrogenase — ALDH1A3 — is a specific marker for mesenchymal GSCs, and his group is the first to show that, among the heterogeneous mix of cells in a GBM tumor, cells with high levels of ALDH1A3 expression were more tumorigenic in vivo than are cells that are low in ALDH1A3.

Emissions of volatile aldehydes from heated cooking oils.

In the 3 March issue of Science, researchers report a way to clean up a commonplace family of chemical reactions — turning alcohols into aldehydes, ketones, and carboxylic acids, starting materials for everything from pharmaceuticals to fragrances.

But not all of it is invalid: it is still true that there are more aldehyde emissions according to the book I found, so if you want to control those, a catalytic converter is required.

Work on Alzheimer's disease addresses a highly reactive keto - aldehyde product of the cyclooxygenases called levuglandin.

Back in the laboratory, the group isolated three compounds called aldehydes produced by the diatoms.

At Benjamin Cardozo High School in New York City, Schor became interested in how aldehydes — chemical compounds often present in car exhaust — affect respiration in animals as well as photosynthesis, the process by which plants turn light into usable energy.

This allows for the identification, evaluation, and isolation of stem and progenitor cells based on aldehyde dehydrogenase (ALDH), expression and not their cell surface phenotype.

Effects of cooking method, cooking oil, and food type on aldehyde emissions in cooking oil fumes.

This type of sensitive, fast, and inexpensive method for detecting volatile aldehydes and ketones is of use in many fields: from the detection of chemical toxins like formaldehyde, to safety and food inspections, and preventative screening.

The biotech company hopes to develop new drugs based on one of her favorite inventions — a genetically - encoded aldehyde tag.

PPAM inhibited mammosphere formation of aggressive breast cancer cells and decreased expression of the CSC surrogate marker aldehyde dehydrogenase (ALDH1) as well as of the epithelial - mesenchymal transition (EMT) phenotype [59].

High PI and DBI equals short lifespan MLSP despite mitochondrial Glutathione and Thioredoxin trying its best to scavenge membrane Hydroperoxides formation from hydroxyl radical stealing hydrogen atom from unsaturated fatty acids (initiating lipid peroxidation propagation forming highly mutational reactive aldehydes (MDA, MDA - TBARS), alkenals (4 - HNE), methylglyoxals (creating glucosepane, MDA - Lys, CML, pentosidine, CEL, furosine from Amadori).

«The detection of the two new aldehydes, which are related by a common chemical pathway called hydrogen addition, demonstrates that evolution to more complex species occurs routinely in interstellar clouds and that a relatively simple mechanism may build large molecules out of smaller ones.

This idea comes from the article by Dr. Wilson, which states that fermented foods such as kombucha, kimchi, and most fermented grains contain aldehydes that are «quite toxic for the liver.»

The fumes have been found to contain polycyclic aromatic hydrocarbons (PAHs), heterocyclic amines, higher and mutated aldehydes, and fine and ultrafine particles.

Molybdenum serves as a cofactor for four critical enzymes: Sulfite oxidase, Xanthine oxidase, Aldehyde oxidase, and Mitochondrial amidoxime reducing component (mARC).

In the GBT experiment, three aldehyde molecules were observed and appear to be related by simple hydrogen addition reactions, which probably occur on the surface of interstellar grains.

In addition, a detailed oxidation mechanism for OSCs was added to the model (SI Appendix, sections 1 and 3), including reactions of the CH3S (O)(O) O • radical with HCHO and larger aldehydes.

Its abundant aldehyde chemical composition leads one to infer that it's sedating yet uplifting.

The new collection also features Nails inc's patented Regenerating Complex (a two-fold Aldehyde, Zinc and Calcium blend), making it the ultimate treatment for stronger, healthier looking nails.

To get around that problem, a group at the Department of Energy's Ames Laboratory in Iowa, led by Vitalij Pecharsky — a materials scientist with a joint appointment at Iowa State University, Ames — started with powdery organic compounds, such as phosphonium salts, solid aldehydes or ketones, and anhydrous potassium carbonate.

The binding of a peptide aldehyde inhibitor marks the active site in the central cavity at the amino termini of the beta subunits and suggests a novel proteolytic mechanism.

Thermolysis of the applied tosyl hydrazones (easily prepared by condensation of the corresponding aldehydes with tosyl hydrazine) leads to in situ formation of the corresponding diazo compounds.

«We conclude that toxic aldehydes present in electronic cigarette aerosols are potentially a cause for concern and could adverse impact the cardiovascular health of users,» Conklin said.

The researchers made their ionic liquids using furfural, vanillin and p - anisaldehyde, which are aromatic aldehydes derived from lignin and cellulose.

They also had 32 % more betaine aldehyde dehydrogenase, a compound found to reduce chromosomal abnormalities in human blood exposed to radiation.

The new array was able to detect and differentiate numerous different aldehydes and ketones at concentrations below 0.0001 %.

It includes indicators for aldehydes and ketones as well as a number of other classes of substance such as carboxylic acids, sulfides, amines, and polyphenols, registering a broader palette of the aromatic compounds that make up the specific flavors of spirits.

Most of the 140 types of molecules found in space have been discovered here, including some common on Earth: acetic acid (vinegar), ethylene glycol (the chief ingredient in antifreeze), and a basic sugar known as glycol aldehyde.

Her efforts allowed her to discover that single - cell plants that were exposed to aldehydes did end up with less chlorophyll — the green pigment in plants that absorbs light and plays a key role in photosynthesis.

Requires heat - induced antigen retrieval where aldehydes are used as fixatives.

aMOx works well because it stabilizes high - energy radical and carbocation intermediates created when its iron - oxo group attacks styrene's terminal alkene, allowing anti-Markovnikov aldehyde formation to predominate.

In the new study, postdoc Stephan C. Hammer, now at the University of Stuttgart, found that the enzyme actually made 45 % aldehyde directly, without going through an epoxide intermediate.

An earlier study by another group had found that P450LA1 also made 19 % aldehyde side - product by opening the epoxide.

Current industrial processes to make alcohols and aldehydes require starting with a complex, petrochemical - based target molecule, an olefin, which is then converted to liquid chemicals in a complicated series of several steps.

It also may improve alcohol tolerance and reduce the negative effects of alcohol by inducing aldehyde dehydroenases.