"This case flew in the face of everything I had been taught regarding the universality and imminence of somatic demise in brain death," Shewmon later wrote.
This assumption may have arisen in part due to the lack of overt pathology in Cre expressing mice [8], but given the ability of mammals to tolerate significant somatic cell death this conclusion clearly requires validation.
Somatic cell death, or apoptosis, is the general process of cell renewal.
This suggests that RNAi against dlc-1 does not affect somatic cell death or engulfment but specifically increases germ cell apoptosis.
The apoptotic pathway was first characterized in C. elegans where somatic cell death occurs in an invariant, cell lineage-directed pattern.
However, inactivation of csp-2 does not appear to affect somatic cell death, nor does it enhance the csp-3 lf) csp-3 lfn somatic cells, indefectng that csp-2 does not affect apoptosin in somatic cells.
A large body of evidence indicates that neurons affected in AD follow a dying-back pattern of degeneration, where abnormalities in synaptic function and axonal integrity long precede somatic cell death [ 4, 5].
A large body of evidence indicates that neurons affected in AD follow a dying-back pattern of degeneration, where such loss of axonal integrity precede somatic cell death and has a profound effect on neuronal network function.
Interestingly, lack of vret in the soma resembles the piwi mutant phenotype, in which GSCs fail to differentiate as a consequence of somatic cell death, an event presumably associated with transposon misregulation.
By contrast, somatic cell deaths in C. elegans occur strictly based on cell lineage information and are invariant from animal to animal 23.
