Although the pH-value reached a relatively low value at 4.5, the metabolic activity is sustained, due to the continuous release of the Na2CO3.
In addition, the pharmacodynamic half-life of drugs that change receptor activation levels is much longer than the tens of seconds the network activity is sustained.
This trend seems to indicate that the fervor to load up a new phone or tablet with apps doesn't just result in a temporary spike – the increased activity is sustained over weeks (and perhaps months) into the future.
In addition, the fact that cyclin degradation is activated when cdk1 activity is sustained by non-degradable cyclin B [19] suggests that a reduction in MPF activity is not absolutely required to initiate cyclin degradation.
In principle, it would be interesting to investigate whether striatal activity is sustained throughout the anticipation period, i.e., whether it also occurs in the absence of the cue.
Knock down strategies that reduced Rac1 protein levels in these cells (see above, Figure 5A) resulted in a decreased basal level of active PAK1 and JNK, suggesting that their basal activity is sustained by Rac1 (Figure 5D).
The Government should also intervene to find proper markets within or outside India for any excess material, to see that the farmer is not put to loss, and his interest in plantation activity is sustained.
Other studies have shown that they may be beneficial if activity is sustained over years.
Upon prolonged starvation, JNK activity is sustained at a high level, resulting in increased Bcl-2 phosphorylation and dissociation from Bax, which leads to Bax-mediated apoptosis [84].
If Hog1 activity is sustained for an extended period, cells undergo a programmed cell death that requires the action of the nuclear serine proteinase Nma111 and the SCF CDC4 ubiquitin ligase (Vendrell et al. 2011).
Thus, too much autophagy impairs myofiber homeostasis, causing excessive removal of cellular components that are needed for normal activities and leading to muscle atrophy when excessive catabolic activity is sustained for long periods.
