Secondly, a difference between human experiments and the present rat experiment is that in humans group norms are used, while in rats only one demonstrator rat is present.
Although several studies have evaluated bio-markers of methyl eugenol in animals, primarily rats, only one method has been reported to measure methyl eugenol in humans (Barr et al. 2000).
The next point we addressed was the paradox that, although intron 10 of the rat and mouse genes contain mainly copies of SHORT1 including self-complementary microsatellites, the mouse has 65 miRNA-producing genes in this region, while the rat only has one gene that expresses Mir-466d.
In the current rat model, only one out of ca. 30,000 nephrons is infected.
Mouse has two other Gsdma3-related genes, Gsdma and Gsdma2, whereas human and rat have only one related gene.
In previous studies of OFF- l-dopa dyskinesias and foetal VM transplantation in this rat model, only one reported mild spontaneous dyskinetic behaviours in the first weeks post-tx (Lane et al., 2006), but after these early stages none of the studies reported spontaneous dyskinesias (Lee et al., 2000; Steece-Collier et al., 2003; Carlsson et al., 2006; Lane et al., 2006; Maries et al., 2006).
Here, in an array analysis (containing 1178 brain-associated genes), 18 genes were overexpressed in submissive rats but only one gene was overexpressed in dominant rats [ 30].
Interestingly, the replicated rat lines also resulted in APO-UNSUS rats with three Aph-1b gene copy numbers and APO-SUS rats with only one or two gene copies (Coolen et al. 2005).
