Research projects

Diet and Alzheimer’s

One of the most complicated issues in clinical AD research is how diet contributes to cognitive decline.  There is also unfortunately a great deal of mythology in this area.As a scientist and physician, let me start by saying that we have no evidence that AD can be cured or slowed...

Research projects

Oxidative stress in Alzheimer’s disease and CAA

One major proposed mechanism to explain changes associated with cellular and organismal aging is that oxidative damage to lipid, protein and nucleic acids accumulates as cells become less capable of coping with oxidative stress.  This potentially leads to membrane instability, accumulation of damaged proteins and acquired mutation, all of which...

Research projects

Lysosome dysfunction in Alzheimer’s disease and CAA

Many recent and ongoing clinical trials for the treatment of Alzheimer’s disease are based on the goal of increasing β-amyloid clearance from the brain. A pivotal clinical trial with this approach studied active immunization of patients with AD against β-amyloid and the trial was stopped prematurely when some subjects developed...

Research projects

Causes of cerebral microhemorrhages

Cerebral microhemorrhages on susceptibility weight magnetic resonance images are an important biomarker of cerebral arteriopathies.  The iron in small foci of bleeding is released from hemoglobin and its magnetic properties induce a focal inhomogeneity in the magnetic field in MR images.  This results in a small magnetic dipole artifact in...