Evidence map›Paper›PMID 26434635›Full record

ArticleAlzheimer's research & therapy2015

Cerebrospinal fluid levels of IL-6 are decreased and correlate with cognitive status in DLB patients.

Malin Wennström, Sara Hall, Katarina Nägga, Elisabet Londos, Lennart Minthon, Oskar Hansson

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's research & therapy, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 1 pooled it
1.1field-weighted citation impact, top 21% 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

15 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. Article
  10. Lewy Body Dementias: A Coin with Two Sides?Behavioral sciences (Basel, Switzerland) · 2021
    Review
  11. Review
  12. Review
  13. Peripheral inflammation in prodromal Alzheimer's and Lewy body dementias.Journal of neurology, neurosurgery, and psychiatry · 2018
    Article
  14. Article
  15. Cerebrospinal Fluid, Imaging, and Physiological Biomarkers in Dementia With Lewy Bodies.American journal of Alzheimer's disease and other dementias
    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

6 authors at 1 institution in 1 country.

Malin WennströmClinical Memory Research Unit, Department of Clinical Sciences Malmö, Faculty of Medicine, Lund University, Wallenberg Laboratory, floor 2, Inga-Marie Nilssons gata 53, 205 02, Malmö, Sweden. malin.wennstrom@med.lu.se.
Sara HallClinical Memory Research Unit, Department of Clinical Sciences Malmö, Faculty of Medicine, Lund University, Wallenberg Laboratory, floor 2, Inga-Marie Nilssons gata 53, 205 02, Malmö, Sweden. sara.hall@med.lu.se.
Katarina NäggaClinical Memory Research Unit, Department of Clinical Sciences Malmö, Faculty of Medicine, Lund University, Wallenberg Laboratory, floor 2, Inga-Marie Nilssons gata 53, 205 02, Malmö, Sweden. Katarina.Nagga@skane.se.
Elisabet LondosClinical Memory Research Unit, Department of Clinical Sciences Malmö, Faculty of Medicine, Lund University, Wallenberg Laboratory, floor 2, Inga-Marie Nilssons gata 53, 205 02, Malmö, Sweden. Elisabet.Londos@skane.se.
Lennart MinthonClinical Memory Research Unit, Department of Clinical Sciences Malmö, Faculty of Medicine, Lund University, Wallenberg Laboratory, floor 2, Inga-Marie Nilssons gata 53, 205 02, Malmö, Sweden. Lennart.Minthon@skane.se.
Oskar HanssonClinical Memory Research Unit, Department of Clinical Sciences Malmö, Faculty of Medicine, Lund University, Wallenberg Laboratory, floor 2, Inga-Marie Nilssons gata 53, 205 02, Malmö, Sweden. oskar.hansson@med.lu.se.
Lund University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionInflammatory processes have previously been shown to influence cognition and progression of dementia. An involvement of interleukin (IL)-6 has in particular been suggested as altered levels of IL-6 in cerebrospinal fluid (CSF) have been found in patients with Alzheimer's disease (AD). Also, an association between cognitive decline and levels of IL-6 in CSF have been reported. The aim of the present study was to investigate whether patients clinically diagnosed with dementia with Lewy bodies (DLB) display altered CSF IL-6 levels in comparison with patients with AD and control subjects without dementia and whether the IL-6 levels are correlated with cognitive status and biomarkers for AD and synucleinopathy.

methodsTo analyse CSF of patients with AD (n = 45), patients with DLB (n = 29) and control subjects without dementia (n = 36), we used immunoassays to measure levels of IL-6 (multiplex electrochemiluminescence); AD markers phosphorylated tau, total tau and amyloid-β1-42 (enzyme-linked immunosorbent assay [ELISA]); and α-synuclein (ELISA). Cognitive status was evaluated using the Mini Mental State Examination (MMSE).

resultsOur analysis showed significantly lower levels of IL-6 in CSF from patients with DLB than in CSF from patients with AD and control subjects without dementia. The IL-6 levels were also negatively correlated with MMSE and positively correlated with α-synuclein CSF levels.

conclusionsOur findings support previous studies by demonstrating a link between inflammatory processes and dementia progression and further strengthen the hypothesis that IL-6 is involved in dementia pathology and cognitive decline.

Indexed as

CognitionAdultAgedAged, 80 and overalpha-SynucleinBiomarkersFemaleHumansInterleukin-6Lewy Body DiseaseMaleMiddle AgedNeuropsychological Testsalpha-SynucleinBiomarkersIL6 protein, humanInterleukin-6SNCA protein, human

Identifiers

PMID26434635
PMCPMC4593189
OpenAlexW1923521150

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Registered trials

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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.