TY - JOUR AU - Brenner, Steven R. PY - 2019 DA - 2019/02/26 TI - Sporadic Alzheimer Disease and That Developing in Down’s Syndrome: The Immune System Attacking Self Rather Than Suppressing Infectious Disease Invaders, Toll Like Receptors Triggering Excessive Cytosolic Calcium, Excess Calcineurin Activation, Overexpression of Regulator of Calcineurin1, Runaway Beta-Amyloid Production, Synaptic Loss, Destructive Inflammation and Dementia JO - OBM Geriatrics SP - 035 VL - 03 IS - 01 AB - Alzheimer Disease may result from excessive stimulation of the innate immune system from development of underlying opportunistic infections and impaired age related self recognition as non-self, due to immunodeficiency and immunosenescence, resulting in excessive inflammation and runaway Beta-amyloid production (a component of the innate immune system) causing cytosolic calcium overload. Excessive cytosolic calcium may cause over activation of calcineurin and inactivation of cis-trans prolyl isomerase (Pin1), with subsequent loss of dendritic spine maintenance, and synaptic destruction. Improving immune function, identifying and treating infections, avoiding runaway Beta-amyloid production and inhibiting calcineurin in a manner similar to that utilized in preventing tissue transplant rejection, may lead to improved prevention and treatment of Alzheimer Disease. SN - 2638-1311 UR - https://doi.org/10.21926/obm.geriatr.1901035 DO - 10.21926/obm.geriatr.1901035 ID - Brenner2019 ER -