Serial (non-terminal) biopsies of tissues such as skeletal muscle could provide corresponding information on the molecular and biochemical changes mediating the effects aging and interventions on function.
Mediational analyses disconfirmed the hypothesized model, in which frontal activation mediated the age-related increase in attentional capture, but supported an alternative model in which age was a mediator of the relation between frontal activation and capture.
The SIRT1-deficient mice developed an emphysematous phenotype after 1 year of age although the reduction of SIRT1 levels was started at 6 8 months of age in the lung of these rodents [ 87], suggesting one more time a role of SIRT1 in mediating the aging-associated features of COPD.
I am identifying genes that mediate the age-related decline of long-term memory and the ability of injured neurons to repair themselves.
We did not find any evidence that the HRV mediated the age differences in rsMEG variability.
To test whether prior awareness or comprehension mediated the age or version effects, we used a multivariate model.
Given the known involvement of p53 in age-associated pathways (Sahin & DePinho, 2012), one may speculate that p53 might mediate the age-induced upregulation of miR-34a.
Moreover, by comparing with neurophysiological MEG data from the same participants, we demonstrated that age-related changes of neuronal variability did not mediate the age-related changes in RSFA.
In loss-of-function analyses, clathrin knockdown increased the anti-adipogenic effect of SPARC, whereas Rab7 knockdown reduced it, indicating that alterations in SPARC internalization may mediate the age-related decline in its anti-adipogenic effect.
Because its facilitator role in Ca2+ release through IP3R and RyR channels [ 25; 27- 29], modifications of mTOR and FKBP12 function are plausible candidates to mediate the age-induced Ca2+ signal changes.
