After the demonstration of changes in cytoplasmic copper levels in P. anserina we asked whether this is specific for ageing in this fungal model system or whether such molecular changes are more general and conserved among organisms.
To our knowledge, this is the first demonstration of changes in both autophagic flux and aggregation of autophagy substrates in a vertebrate model of polyglutamine disease.
Because the three clusterin spots altered after Mtb-specific antigen stimulation were not clearly distinguished by immunoblotting, we did not attempt any further demonstration of changes in these signals in our study.
Nevertheless, our findings provide the first demonstration of developmental change of chromatophore photosensitivity of migratory species as well as developmental changes in the expression of two non-visual pigments, cryptochrome and melanopsin, which could participate in the photoresponses of extraretinal photoreceptors.
The best demonstration of this change, he added, was the fact that he had been commissioned to examine "La Bella Principessa" and, possibly, help make one of the greatest discoveries in the history of art.
Democrats and Republicans agreed today that an early demonstration of a change in power of the Democrats would probably come in the Judiciary Committee, where Mr. Leahy has demanded additional scrutiny of President Bush's nominee to be solicitor general, Theodore B. Olson, before his name goes to the Senate floor for a final vote.
Fig. 6 Experimental demonstration of percentage change on synapse weight as a function of the relative timing between pre- and post-synaptic spikes.
Although the precise relationship between increased activities of PKB/Akt and ERK1/2 by aging and decreased expression of Gβ4 remains unknown, current data represent the first demonstration of a change in Gβ4 expression with age in rat brain and suggest that an age-related alteration in expression level of Gβ4 may, at least in part, play an important role in aging processes.
