Evidence map›Paper›PMID 26542729›Full record

ArticlePsychopharmacology2016

Altered relaxin family receptors RXFP1 and RXFP3 in the neocortex of depressed Alzheimer's disease patients.

Jasinda H Lee, Shu Qing Koh, Simone Guadagna, Paul T Francis, Margaret M Esiri, Christopher P Chen, Peter T-H Wong, Gavin S Dawe, Mitchell K P Lai

Abstract read
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In one paragraph

Article in Psychopharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.7field-weighted citation impact, top 23% 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, 25 citations in OpenAlex.

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  9. Extract ofInternational journal of molecular sciences · 2023
    Article
  10. The Relaxin-3 Receptor, RXFP3, Is a Modulator of Aging-Related Disease.International journal of molecular sciences · 2022
    Review
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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 3 institutions in 2 countries.

Jasinda H LeeDepartment of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Unit 09-01, Centre for Translational Medicine (MD6), 14 Medical Drive, Kent Ridge, 117599, Singapore.
Shu Qing KohDepartment of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Unit 09-01, Centre for Translational Medicine (MD6), 14 Medical Drive, Kent Ridge, 117599, Singapore.
Simone GuadagnaWolfson Centre for Age-Related Diseases, King's College London, London, UK.
Paul T FrancisWolfson Centre for Age-Related Diseases, King's College London, London, UK.
Margaret M EsiriNuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK.
Christopher P ChenDepartment of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Unit 09-01, Centre for Translational Medicine (MD6), 14 Medical Drive, Kent Ridge, 117599, Singapore.
Peter T-H WongDepartment of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Unit 09-01, Centre for Translational Medicine (MD6), 14 Medical Drive, Kent Ridge, 117599, Singapore.
Gavin S DaweDepartment of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Unit 09-01, Centre for Translational Medicine (MD6), 14 Medical Drive, Kent Ridge, 117599, Singapore.
Mitchell K P LaiDepartment of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Unit 09-01, Centre for Translational Medicine (MD6), 14 Medical Drive, Kent Ridge, 117599, Singapore. mitchell.lai@dementia-research.org.
National University of Singapore · SGKing's College London · GBUniversity of Oxford · GB

Funding

Medical Research Council MR/L022656/1
6 · The paper itself

Abstract

rationaleThe G-protein-coupled relaxin family receptors RXFP1 and RXFP3 are widely expressed in the cortex and are involved in stress responses and memory and emotional processing. However, the identification of these receptors in human cortex and their status in Alzheimer's disease (AD), which is characterized by both cognitive impairments and neuropsychiatric behaviours, have not been reported.

objectivesIn this study, we characterized RXFP receptors for immunoblotting and measured RXFP1 and RXFP3 immunoreactivities in the postmortem neocortex of AD patients longitudinally assessed for depressive symptoms.

methodsRXFP1 and RXFP3 antibodies were characterized by immunoblotting with lysates from transfected HEK cells and preadsorption with RXFP3 peptides. Also, postmortem neocortical tissues from behaviourally assessed AD and age-matched controls were processed for immunoblotting with RXFP1 and RXFP3 antibodies.

resultsCompared to controls, putative RXFP1 immunoreactivity was reduced in parietal cortex of non-depressed AD patients but unchanged in depressed patients. Furthermore, putative RXFP3 immunoreactivity was increased only in depressed AD patients. RXFP1 levels in the parietal cortex also correlated with severity of depression symptoms. In contrast, RXFP1 and RXFP3 levels did not correlate with dementia severity or β-amyloid burden.

conclusionAlterations of RXFP1 and RXFP3 may be neurochemical markers of depression in AD, and relaxin family receptors warrant further preclinical investigations as possible therapeutic targets for neuropsychiatric symptoms in dementia.

Indexed as

AgedAged, 80 and overAlzheimer DiseaseBiomarkersCohort StudiesDepressionFemaleFollow-Up StudiesHEK293 CellsHumansMaleNeocortexReceptors, G-Protein-CoupledReceptors, PeptideRelaxinBiomarkersReceptors, G-Protein-CoupledReceptors, PeptideRelaxinRXFP1 protein, humanRXFP3 protein, humanAlzheimer’s diseaseDementiaDepressionRelaxin family peptidesRXFP1 receptorsRXFP3 receptors

Identifiers

PMID26542729
OpenAlexW2162169690

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.