Selenium is incorporated into at least 25 distinct selenoproteins, including the antioxidant enzyme glutathione per- oxidase (GPX), which acts to prevent lipid peroxidation of membranes and scavenges free radicals (64). While it is an essential nutrient at appropriate levels in the diet, selenium ...
Like nearly all metazoan cells, cancer cells possess mechanisms to respond to heterogeneity in the supply of oxygen, including activation of a family of hypoxia-inducible transcription factors (HIF-1α, HIF-2α, and HIF-3α)16,17, cell cycle arrest, a coordinated decrease in oxidative phosphory...
In 1546 the Italian scholar Girolamo Fracastoro (Hieronymus Fracastor- ius) proposed transmittable, imperceptible seed-like particles (semi- naria morbi) as causative agents for the outbreak of certain diseases.4 It took several centuries to prove that bacteria are one example of such 'particles'....
It is preferable to add the polymerisation initiator just before the heating of the mixture to the polymerisation temperature. The polymerisation initiator forming free radicals on heating is present in an amount comprised between 0.1 and 5 % by weight based on the weight of liquid monomer ...
These gellants, however, like many other gellants known in the art, are not acid stable and therefore tend to interact with the antiperspirant active due to the acidic nature of the active. This interaction can result in reduced efficacy of the active, poor gel formation, and lower gel ...
1546 the Italian scholar Girolamo Fracastoro (Hieronymus Fracastorius) proposed transmittable, imperceptible seed-like particles (seminaria morbi) as causative agents for the outbreak of certain diseases.4It took several centuries to prove that bacteria are one example of such ‘particles’. In the ...
to the Irving–Williams series [3]. Mn and Fe represent an interesting case: both prefer similar coordination environments and bind weakly to their protein ligands [1]. During recent years it has been shown that protein scaffolds of R2-like ligand-binding oxidases (R2lox) and the radical-...
These gellants, however, like many other gellants known in the art, are not acid stable and therefore tend to interact with the antiperspirant active due to the acidic nature of the active. This interaction can result in reduced efficacy of the active, poor gel formation, and lower gel ...
In order to enhance their bioavailability, leucoselect® has been reformulated with soy phospholipids at a ratio of approximately 1:2.6 (w/w), resulting in the creation of leucoselect® phytosome® [80]. The antioxidant molecules act as powerful scavengers of free radicals and contrast the ...
The iNOS suppressing effect of the rapeseed could be due to the blocking of iNOS expression, inactivation of iNOS catalytic function or scavenging of NO radicals [17]. Various compounds could be involved in iNOS suppression by additive or synergistic effects although the roles of phenolics and ...