Coenzyme Q-10 (ubiquinone) is a small hydrophobic substance that acts as an electron carrier in the mitochondrial respiratory chain.
Therefore, even for basic body reactions to a small particulate substance, the results of animal experiments are considered to be highly representative.
NO, a small molecular substance, participates in the regulation of oxidative stress and acts as intercellular messenger molecule to participating in the regulation of a variety of physiological processes such as angiogenesis, nerve conduction and memory [ 8].
Interestingly, our data indicate that a barrier for small substances is generated after that for large ones during de novo formation of TJs.
A physiological function of cholangiocytes is the secretion of small substances by various transmembrane channel proteins such as multidrug resistance protein 1 (MDR1).
Conclusions: This technique recovered extremely small quantities (<0.5μL) of very small substances (molecular weight, <100kd) directly from soft tissue.
In addition, the relative transfer rates of small substances determined in monolayer BeWo models correlate well with transfer indices from ex vivo placenta perfusions47,48.
Importantly, it has been shown that the relative transfer rates of small substances determined in monolayer BeWo models correlate well with transfer indices from ex vivo placenta perfusions47,48,71, suggesting that our model delivers results with a high predictive value.
Its barrel structure makes it suitable to carry small substances within the cavity and the barrel sides can acquire diverse functions [ 41].
Immunoassays are only available for a small number of substance classes, and it suffers from lack of specificity and sensitivity (Hammett-Stabler and Cotten 2012).
