Cholinergic imbalance in the multiple sclerosis hippocampus

E.J. Kooi, M. Prins, N. Bajic, J.A.M. Beliën, W.H. Gerritsen, J. van Horssen, E.M.A. Aronica, A.M. van Dam, J.J.M. Hoozemans, P.T. Francis, P. van der Valk, J.J.G. Geurts

Research output: Contribution to journalArticleAcademicpeer-review

65 Citations (Scopus)


Hippocampal pathology was shown to be extensive in multiple sclerosis (MS) and is associated with memory impairment. In this post-mortem study, we investigated hippocampal tissue from MS and Alzheimer's disease (AD) patients and compared these to non-neurological controls. By means of biochemical assessment, (immuno)histochemistry and western blot analyses, we detected substantial alterations in the cholinergic neurotransmitter system in the MS hippocampus, which were different from those in AD hippocampus. In MS hippocampus, activity and protein expression of choline acetyltransferase (ChAT), the acetylcholine synthesizing enzyme, was decreased, while the activity and protein expression of acetylcholinesterase (AChE), the acetylcholine degrading enzyme, was found to be unaltered. In contrast, in AD hippocampus both ChAT and AChE enzyme activity and protein expression was decreased. Our findings reveal an MS-specific cholinergic imbalance in the hippocampus, which may be instrumental in terms of future treatment options for memory problems in this disease
Original languageEnglish
Pages (from-to)313-322
Number of pages10
JournalActa Neuropathologica
Issue number3
Publication statusPublished - Sept 2011


  • Acetylcholinesterase
  • Adult
  • Aged
  • Aged, 80 and over
  • Alzheimer Disease
  • Choline O-Acetyltransferase
  • Female
  • Hippocampus
  • Humans
  • Journal Article
  • Male
  • Middle Aged
  • Multiple Sclerosis
  • Research Support, Non-U.S. Gov't

Cite this