The range of organic molecules that organisms, especially microbes, can metabolize is very wide and occasionally includes foods such as formaldehyde or petroleum that seem unlikely from a human point of view.
While there are countless examples of redox reactions in biochemistry, the reactions that are most closely related to oxidative stress involve molecules that are especially strong oxidizing agents, known collectively as free radicals, and include reactive oxygen species (ROS) and reactive nitrogen species (RNS) (the predominance of RNS is often referred to as nitrosative stress).
Amino acids are small polar molecules that easily diffuse, especially, through the Fe-S gel, the principal constituent of the hydrothermal compartments [ 72, 73].
Since we were interested in factors, which can predict whether the tumour is beyond cure by surgery alone, we reasoned that especially molecules involved in cell cell and cell extracellular matrix (ECM) interactions might be of high relevance.
He described the study as "very important, because it is rare that we identify orally active molecules, especially natural molecules, that have such a broad-based, positive effect on a problem which is as widespread in society as metabolic disease".
Behaviorally-driven reductions in the mRNA encoding this transcription factor could ultimately affect downstream molecules that function in vocal exploration, especially during sensorimotor learning.
UV-visible spectroscopy is especially informative for molecules that contain conjugated π bonds.
Our study identified several CSF small-molecule metabolites that discriminated especially well between clinically diagnosed AD and control groups.
He also said it was an especially sensitive molecule that was prone to degradation, and so when storing that particular "book" in one of his "libraries" it had to be "bound" with a "light-blocked book cover".
Scientists would like to investigate the geological history of the moons' surfaces and identify the types of molecules there, especially ones that might indicate life.
