This article suggests a link between Alzheimer's and Type 2 diabetes.
http://diabetes.diabetesjournals.org/cg ... t/53/2/474
Last sentence of summary says:
"These data support the hypothesis that patients with Alzheimer disease are more vulnerable to type 2 diabetes and the possibility of linkage between the processes responsible for loss of brain cells and ß-cells in these diseases".
In the discussion section it concludes:
"In conclusion, we report that there is an increased prevalence of both type 2 diabetes and IFG in a community cohort of patients with Alzheimer disease followed in Olmsted County, Rochester, Minnesota. We also report increased islet amyloid in patients with Alzheimer disease
compared with control subjects. However, we did not observe an increased frequency of brain amyloid in cases of type 2 diabetes, although in cases of type 2 diabetes that did have brain amyloid, the extent of this amyloid increased with longer duration of diabetes, a correlate that
did not extend to the age of patients with type 2 diabetes. Taken together, these clinical and pathological studies support a possible link between the neurodegenerative processes that lead to loss of cortical brain cells in Alzheimer disease and the loss of -cells in type 2 diabetes."
However, it doesn't hypothesise the opposite that type 2 diabetes increases risk of Alzheimer, but I suppose I may have already started with Alzheimer's (but I can't remember having being diagnosed with it

)