Skip to main content
padlock icon - secure page this page is secure

Substantial Archaeocortical Atrophy and Neuronal Loss in Multiple Sclerosis

Buy Article:

$52.00 + tax (Refund Policy)


Recent studies have revealed extensive neocortical pathology in multiple sclerosis (MS). The hippocampus is a unique archaeocortical structure understudied in MS. It plays a central role in episodic and anterograde memory—the most frequently impaired cognitive modalities in MS. This histopathological study aimed to investigate inflammatory demyelination and neurodegenerative changes in the MS archaeocortex. A detailed quantitative analysis was performed on hippocampal autopsy tissue from 45 progressive MS cases and seven controls. Forty-one lesions were identified in 28 of the 45 hippocampal MS-blocks examined, with percentage area of demyelination averaging 30.4%. The majority of lesions were chronic and subpially or subependymally located. Compared to controls, neuronal numbers were decreased by 27% in CA1 and 29.7% in CA3-2. Furthermore, the size of neurones was decreased by 17.4% in CA1. There was evidence of gross hippocampal atrophy with a 22.3% reduction in the average cross-sectional area, which correlated with neuronal loss. Our study provides evidence of substantial archaeocortical pathology largely resembling patterns seen in the neocortex and suggests that hippocampal involvement could contribute to memory impairments often seen in MS.
No References
No Citations
No Supplementary Data
No Article Media
No Metrics

Keywords: atrophy; cortical demyelination; hippocampus; multiple sclerosis; neuronal loss

Document Type: Research Article

Affiliations: 1: Department of Cellular and Molecular Neuroscience, Imperial College Faculty of Medicine, and 2: The UK Multiple Sclerosis Tissue Bank, Imperial College London, Hammersmith Hospital Campus, London, UK.

Publication date: April 1, 2009

  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more