Evidence map›Paper›PMID 32173555›Full record

ArticleNeurobiology of disease2020

Increased plasma bradykinin level is associated with cognitive impairment in Alzheimer's patients.

Pradeep K Singh, Zu-Lin Chen, Dhiman Ghosh, Sidney Strickland, Erin H Norris

Open access · goldAbstract read
In one paragraph

Article in Neurobiology of disease, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
4.5field-weighted citation impact, top 5% 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

28 citing papers in PubMed, 56 citations in OpenAlex.

  1. Article
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  5. Review
  6. Antihypertensive medications and dementia in older adults with hypertension.medRxiv : the preprint server for health sciences · 2024
    Article
  7. Article
  8. Sacubitril/valsartan and the risk of incident dementia in heart failure: a nationwide propensity-matched cohort study.Clinical research in cardiology : official journal of the German Cardiac Society · 2024
    Article
  9. Review
  10. Article
  11. Review
  12. A possible mechanism for the enhanced toxicity of beta-amyloid protofibrils in Alzheimer's disease.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  13. Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. A modular map of Bradykinin-mediated inflammatory signaling network.Journal of cell communication and signaling · 2022
    Article
  20. Article
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

5 authors at 2 institutions in 2 countries.

Pradeep K SinghPatricia and John Rosenwald Laboratory of Neurobiology and Genetics, The Rockefeller University, New York, NY 10065, USA.
Zu-Lin ChenPatricia and John Rosenwald Laboratory of Neurobiology and Genetics, The Rockefeller University, New York, NY 10065, USA.
Dhiman GhoshLaboratory of Physical Chemistry, ETH Zürich, WolfgangPauli-Str. 10, 8093 Zürich, Switzerland.
Sidney StricklandPatricia and John Rosenwald Laboratory of Neurobiology and Genetics, The Rockefeller University, New York, NY 10065, USA.
Erin H NorrisPatricia and John Rosenwald Laboratory of Neurobiology and Genetics, The Rockefeller University, New York, NY 10065, USA. Electronic address: enorris@rockefeller.edu.
Rockefeller University · USETH Zurich · CH

Funding

Role of Fibrinogen in Alzheimer's DiseaseR01NS106668 · NINDS · ROCKEFELLER UNIVERSITY · PI Erin H. Norris, SIDNEY STRICKLAND · 2018 to 2026
$5.8M
Role of the Contact System in Alzheimer's DiseaseR01NS102721 · NINDS · ROCKEFELLER UNIVERSITY · PI Erin H. Norris, SIDNEY STRICKLAND · 2018 to 2026
$5.3M
NINDS NIH HHS R01 NS102721NINDS NIH HHS R01 NS106668
6 · The paper itself

Abstract

Alzheimer's disease (AD) is characterized by the presence of proteinaceous brain deposits, brain atrophy, vascular dysfunction, and chronic inflammation. Along with cerebral inflammation, peripheral inflammation is also evident in many AD patients. Bradykinin, a proinflammatory plasma peptide, is also linked to AD pathology. For example, bradykinin infusion into the hippocampus causes learning and memory deficits in rats, and blockade of the bradykinin receptor lessens cognitive impairment in AD mouse models. Even though it has been hypothesized that plasma bradykinin could contribute to inflammation in AD, the level of plasma bradykinin and its association with beta-amyloid (Aβ) pathology in AD patients had not been explored. Here, we assessed plasma bradykinin levels in AD patients and age-matched non-demented (ND) control individuals. We found significantly elevated plasma bradykinin levels in AD patients compared to ND subjects. Additionally, changes in plasma bradykinin levels were more profound in many AD patients with severe cognitive impairment, suggesting that peripheral bradykinin could play a role in dementia most likely via inflammation. Bradykinin levels in the cerebrospinal fluid (CSF) were reduced in AD patients and exhibited an inverse correlation with the CSF Aβ40/Aβ42 ratio. We also report that bradykinin interacts with the fibrillar form of Aβ and co-localizes with Aβ plaques in the post-mortem human AD brain. These findings connect the peripheral inflammatory pathway to cerebral abnormalities and identify a novel mechanism of inflammatory pathology in AD.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseAmyloid beta-PeptidesApolipoproteins EBiomarkersBradykininCase-Control StudiesCognitive DysfunctionDisease ProgressionFemaleHumansMaleMiddle AgedPlaque, AmyloidAmyloid beta-PeptidesApolipoproteins EBiomarkersBradykininAlzheimer's diseaseBeta-amyloidBradykininCognitive impairmentContact activation systemHigh molecular weight kininogenInflammation

Identifiers

PMID32173555
PMCPMC7175647
OpenAlexW3010864271

What OpenQuestion holds

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LicenceTDM
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.