Evidence map›Paper›PMID 37221606›Full record

ArticleBiology of sex differences2023

Sex-specific associations of matrix metalloproteinases in Alzheimer's disease.

Mari Aksnes, Trine H Edwin, Ingvild Saltvedt, Rannveig S Eldholm, Farrukh A Chaudhry, Nathalie B Halaas, Marius Myrstad, Leiv O Watne, Anne-Brita Knapskog

Open access · goldAbstract read
In one paragraph

Article in Biology of sex differences, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. [Progress on prognostic assessment methods for mild cognitive impairment].Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences · 2026
    Review
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  4. Recent advances in biomarkers for cardiac fibrosis.Frontiers in cardiovascular medicine · 2026
    Review
  5. Article
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  7. Article
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  10. Sex differences research is important!Biology of sex differences · 2025
    Article
  11. Article
  12. Review
  13. Article
  14. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 1 country.

Mari AksnesDepartment of Geriatric Medicine, University of Oslo, 0315, Oslo, Norway. mari.aksnes@medisin.uio.no.ORCID 0000-0002-7595-527X
Trine H EdwinDepartment of Geriatric Medicine, Oslo University Hospital, 0450, Oslo, Norway.
Ingvild SaltvedtDepartment of Neuromedicine and Movement Science, Norwegian University of Science and Technology, 7030, Trondheim, Norway.
Rannveig S EldholmDepartment of Neuromedicine and Movement Science, Norwegian University of Science and Technology, 7030, Trondheim, Norway.
Farrukh A ChaudhryDepartment of Molecular Medicine, University of Oslo, 0315, Oslo, Norway.
Nathalie B HalaasDepartment of Geriatric Medicine, University of Oslo, 0315, Oslo, Norway.
Marius MyrstadDepartment of Internal Medicine, Bærum Hospital, Vestre Viken Hospital Trust, 1346, Gjettum, Norway.
Leiv O WatneInstitute of Clinical Medicine, Campus Ahus, University of Oslo, Oslo, Norway.
Anne-Brita KnapskogDepartment of Geriatric Medicine, Oslo University Hospital, 0450, Oslo, Norway.
Oslo University Hospital · NONorwegian University of Science and Technology · NOUniversity of Oslo · NOOsloMet – Oslo Metropolitan University · NOVestre Viken Hospital Trust · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionAlzheimer's disease (AD) can be characterised in vivo by biomarkers reflecting amyloid-β (Aβ) and tau pathology. However, there is a need for biomarkers reflecting additional pathological pathways. Matrix metalloproteinases (MMPs) have recently been highlighted as candidate biomarkers for sex-specific mechanisms and progression in AD.

methodsIn this cross-sectional study, we investigated nine MMPs and four tissue inhibitors of metalloproteinases (TIMPs) in the cerebrospinal fluid of 256 memory clinic patients with mild cognitive impairment or dementia due to AD and 100 cognitively unimpaired age-matched controls. We studied group differences in MMP/TIMP levels and examined the associations with established markers of Aβ and tau pathology as well as disease progression. Further, we studied sex-specific interactions.

resultsMMP-10 and TIMP-2 levels differed significantly between the memory clinic patients and the cognitively unimpaired controls. Furthermore, MMP- and TIMP-levels were generally strongly associated with tau biomarkers, whereas only MMP-3 and TIMP-4 were associated with Aβ biomarkers; these associations were sex-specific. In terms of progression, we found a trend towards higher MMP-10 at baseline predicting more cognitive and functional decline over time exclusively in women.

conclusionOur results support the use of MMPs/TIMPs as markers of sex differences and progression in AD. Our findings show sex-specific effects of MMP-3 and TIMP-4 on amyloid pathology. Further, this study highlights that the sex-specific effects of MMP-10 on cognitive and functional decline should be studied further if MMP-10 is to be used as a prognostic biomarker for AD.

Indexed as

Alzheimer DiseaseCross-Sectional StudiesFemaleHumansMaleMatrix Metalloproteinase 10Matrix Metalloproteinase 3Matrix Metalloproteinase 10Matrix Metalloproteinase 3Alzheimer diseaseBiomarkersCerebrospinal fluidCognitive declineMatrix metalloproteinasesNeurodegenerative diseasesPrognosisSex differencesTissue inhibitor of metalloproteinases

Identifiers

PMID37221606
PMCPMC10207710
OpenAlexW4377940788

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.