Iron Concentration in Deep Gray Matter Structures is Associated with Worse Visual Memory Performance in Healthy Young Adults

J Alzheimers Dis. 2017;59(2):675-681. doi: 10.3233/JAD-170118.

Abstract

Abnormally high deposition of iron can contribute to neurodegenerative disorders with cognitive impairment. Since previous studies investigating cognition-brain iron accumulation relationships focused on elderly people, our aim was to explore the association between iron concentration in subcortical nuclei and two types of memory performances in a healthy young population. Gender difference was found only in the globus pallidus. Our results showed that iron load characterized by R2* value on the MRI in the caudate and putamen was related to visual memory, while verbal memory was unrelated to iron concentration.

Keywords: Alzheimer’s disease; caudate nucleus; magnetic resonance imaging; memory; putamen; thalamus.

MeSH terms

  • Acoustic Stimulation
  • Adolescent
  • Adult
  • Female
  • Gray Matter / diagnostic imaging
  • Gray Matter / metabolism*
  • Healthy Volunteers
  • Humans
  • Imaging, Three-Dimensional
  • Iron / metabolism*
  • Magnetic Resonance Imaging
  • Male
  • Memory Disorders / diagnostic imaging
  • Memory Disorders / pathology*
  • Neuropsychological Tests
  • Photic Stimulation
  • Sex Factors
  • Statistics, Nonparametric
  • Verbal Learning / physiology
  • Young Adult

Substances

  • Iron