Diabetes and alzheimer disease, two overlapping pathologies with the same background: Oxidative stress

Sergio Rosales-Corral, Dun Xian Tan, Lucien Manchester, Russel J. Reiter

Research output: Contribution to journalReview articlepeer-review

98 Scopus citations


There are several oxidative stress-related pathways interconnecting Alzheimer's disease and type II diabetes, two public health problems worldwide. Coincidences are so compelling that it is attractive to speculate they are the same disorder. However, some pathological mechanisms as observed in diabetes are not necessarily the same mechanisms related to Alzheimer's or the only ones related to Alzheimer's pathology. Oxidative stress is inherent to Alzheimer's and feeds a vicious cycle with other key pathological features, such as inflammation and Ca2+ dysregulation. Alzheimer's pathology by itself may lead to insulin resistance in brain, insulin resistance being an intervening variable in the neurodegenerative disorder. Hyperglycemia and insulin resistance from diabetes, overlapping with the Alzheimer's pathology, aggravate the progression of the neurodegenerative processes, indeed. But the same pathophysiological background is behind the consequences, oxidative stress. We emphasize oxidative stress and its detrimental role in some key regulatory enzymes.

Original languageEnglish (US)
Article number985845
JournalOxidative Medicine and Cellular Longevity
StatePublished - Feb 26 2015
Externally publishedYes

ASJC Scopus subject areas

  • Aging
  • Biochemistry
  • Cell Biology


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