DrStephen Allen,, Department of Medicine, The Royal Bournemouth Hospital, Castle Lane East, Bournemouth, BH7 7DW, UK
Review Article
Inflammation, Delirium, Dementia and Ageing Brain Phenotypes: A Short Review and the Need for New Approaches to Explore Immune System Complexity
Author(s): Stephen C Allen*
Ageing is associated with persisting systemic inflammation, both in chronic form and as delayed resolution after
acute inflammatory illnesses. The clearest markers of this are raised blood concentrations of pro-inflammatory
cytokines and other chemokines that are involved in mediating an inflammatory state, and C-reactive protein as
general indicator of inflammation. This condition of “inflammaging” is linked causally in a complex and reciprocal
manner with several diseases that are prevalent in older people including a tendency to develop delirium during acute
perturbations of brain function, and to a predisposition to dementia and other age-associated neurodegenerative
conditions. There is evidence of a key role of cytokines both in the aetiologies of such diseases and in the immune
modulation processes that reduce inflammation, and evidence that in.. View more»