Once a pain receptor like the capsaicin receptor is activated, the initial electrical spike causes sodium ion channels to open in sequence down the length of the nerve, conveying the electrical impulse all the way to the nerve's end.
Using pathway analysis, we found that group CG activates the initial phagocytosis process and induces genes relevant to immune response, whereas group PG can de-activate the phagocytosis process associated with phagosome-lysosome fusion.
Moreover, diverse inducers of autophagic programmed cell death were shown to act through the generation of reactive oxygen species (ROS) [33], more specifically H2O2 which was shown to act as a signalling molecule able to activate the initial autophagosome formation, via the oxidation of a specific cystein of Atg4 [34].
Together, these results provide compelling evidence for a role of oxidative stress, which activates the initial process of renal calcium crystallization and can be prevented by catechin.
Hence, although S phase arrest activates the initial stages of the DDR pathway similarly in both cell types, the downstream outcomes are different: fibroblasts undergo apoptosis, whereas hMECs activate a senescence-like programme but do not die.
It is shown that after activating the tropospheric wave forcing, the initial pulse of AGWs may very quickly propagate to altitudes of 100 km and above and relatively slowly dissipate due to molecular viscosity and heat conduction.
After activating the surface wave forcing, initial pulse of acoustic and very long gravity modes in a few minutes can reach altitudes above 100 km.
The ability of CFA/PTX treatment to stimulate expression of these chemokines could potentially reflect the actions of one or both of these adjuvants to 'prime' the neuroinflammatory process by activating the endothelium to elicit initial auto reactive T cell extravasation from the circulation into the stromal compartment.
In contrast to repetition suppression, reactivation refers to a phenomenon in which the same cortical area that is activated during the initial perception of a stimulus is also activated when the stimulus is later brought to mind in the act of remembering.
Microglia easily can become activated, and the initial stages of activation are characterized by the secretion of signaling molecules, slight morphological changes, and increased production of molecules involved in immune responses (i.e., major histocompatibility complex [MHC]) as well as of TLRs (Graeber 2010).
