Leptin and Alzheimer's Disease

Research output: Chapter in Book/Report/Conference proceedingChapter

4 Citations (Scopus)


It is well documented that the hormone leptin regulates several hypothalamic-driven functions, including energy homeostasis and reproductive function. However, recent studies indicate that leptin receptor expression is not restricted to hypothalamic sites and that leptin has widespread action in the central nervous system (CNS). Indeed, evidence is growing that leptin has the capacity to modulate higher brain functions, including its ability to markedly influence hippocampal synaptic function and in particular learning and memory processes. It is known that diet and lifestyle are key factors influencing the risk of developing neurodegenerative disorders, and recent evidence has found a link for midlife obesity and Alzheimer's disease (AD). As obesity is attributed to leptin resistance, the hormone leptin may be an important factor linking obesity and AD. Indeed, recent studies indicate that dysfunctions in the leptin system are associated with an increased incidence of AD. Here we review the evidence that leptin is a potential cognitive enhancer and also examine the possibility of utilizing leptin replacement therapy in the treatment of AD.

Original languageEnglish
Title of host publicationDiet and Nutrition in Dementia and Cognitive Decline
PublisherElsevier Inc.
Number of pages11
ISBN (Electronic)9780124079397
ISBN (Print)9780124078246
Publication statusPublished - 1 Jan 2015


  • Aging
  • Alzheimer's disease
  • AMPA receptor trafficking
  • Beta amyloid
  • Excitatory synaptic transmission
  • Hippocampus
  • Leptin
  • NMDA receptor
  • Obesity
  • Synaptic plasticity

ASJC Scopus subject areas

  • General Nursing


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