Cited by 818Multiple Sclerosis Research StudiesPeripheral Neuropathies and DisordersPolyomavirus and related diseases

Primary-progressive multiple sclerosis

Miller, David H, Leary, Siobhan M·2007·The Lancet Neurology

Abstract

About 10-15% of patients with multiple sclerosis (MS) present with gradually increasing neurological disability, a disorder known as primary-progressive multiple sclerosis (PPMS). Compared with relapse-onset multiple sclerosis, people with PPMS are older at onset and a higher proportion are men. Inflammatory white-matter lesions are less evident but diffuse axonal loss and microglial activation are seen in healthy-looking white matter, in addition to cortical demyelination, and quantitative MRI shows atrophy and intrinsic abnormalities in the grey matter and the white matter. Spinal cord atrophy corresponds to the usual clinical presentation of progressive spastic paraplegia. Although neuroaxonal degeneration seems to underlie PPMS, the pathogenesis and the extent to which immune-mediated mechanisms operate is unclear. MRI of the brain and spinal cord, and examination of the CSF, are important investigations for diagnosis; conventional immunomodulatory therapies, such as interferon beta and glatiramer acetate, are ineffective. Future research should focus on the clarification of the mechanisms of axonal loss, improvements to the design of clinical trials, and the development of effective neuroprotective treatments.

Integrity signals

Registry

Crossref · 10.1016/s1474-4422(07)70243-0

Cites

96 of 96 references verified0 citation errors · 0 not checkable

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  • Brain T2 lesion load tends to be lower in PPMS and the combination of MRI and CSF findings provides a higher sensitivity than MRI alone.

    “Brain T2 lesion load tends to be lower in PPMS 6 and the combination of MRI and CSF findings provides a higher sensitivity than MRI alone.20”

    From Diagnosis of multiple sclerosis: progress and challenges (2017) · cites this paper as [6]

  • The onset of PPMS is characterised by slowly progressive symptoms, most often an asymmetric paraparesis that evolves over months or years or, less commonly, a progressive hemiparesis or cerebellar ataxia or very rarely, visual failure or dementia.

    “The onset of PPMS in contrast is characterised by slowly progressive symptoms, most often an asymmetric paraparesis that evolves over months or years 6 or, less commonly, a progressive hemiparesis or cerebellar ataxia or very rarely, visual failure or dementia.6”

    From Diagnosis of multiple sclerosis: progress and challenges (2017) · cites this paper as [6]

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Authors
Miller, D. H., & Leary, S. M.
Affiliations
  • UCL Queen Square Institute of Neurology (GB)
  • University College Hospital (GB)
Venue
The Lancet Neurology
Publisher
Elsevier BV
Published
2007-10
Volume
6
Issue
10
Pages
903-912
ISSN
1474-4422 (ISSN-L)
OpenAlex
W1990040006
Cited by
818
References
98
Citations by year
2026: 18 · 2025: 23 · 2024: 30 · 2023: 32 · 2022: 74 · 2021: 74 · 2020: 29 · 2019: 26 · 2018: 32 · 2017: 33 · 2016: 161 · 2015: 66 · 2014: 33 · 2013: 71 · 2012: 19
FWCI
2.78
Type
journal article
Language
en
Open access
closed
Locations
  • The Lancet Neurology (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
Multiple Sclerosis Society
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Multiple Sclerosis Research Studies
  • Health Sciences › Medicine › Neurology › Peripheral Neuropathies and Disorders
  • Health Sciences › Medicine › Oncology › Polyomavirus and related diseases
Keywords
primary progressive multiple sclerosis, axonal loss, neuroaxonal degeneration, microglial activation, cortical demyelination, spinal cord atrophy, quantitative MRI, cerebrospinal fluid biomarkers, interferon-beta, glatiramer acetate, neuroprotection, pathogenesis
MeSH terms
Brain, Diagnosis, Differential, Humans, Magnetic Resonance Imaging, Multiple Sclerosis, Chronic Progressive

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