Evidence map›Paper›PMID 36040559›Full record

SynthesisNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2022

Inflammatory markers and depression in Parkinson's disease: a systematic review.

Luis Guilherme Ramanzini, Luís Fernando Muniz Camargo, Juliana Oliveira Freitas Silveira, Guilherme Vargas Bochi

Abstract readSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
2.5field-weighted citation impact, top 9% 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, 20 citations in OpenAlex.

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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

4 authors at 2 institutions in 1 country.

Luis Guilherme RamanziniDepartment of Physiology and Pharmacology, Federal University of Santa Maria, 1000 Roraima Avenue, Building 21, Santa Maria, Rio Grande do Sul, Brazil. luis-guilherme.ramanzini@acad.ufsm.br.ORCID http://orcid.org/0000-0002-5492-9793
Luís Fernando Muniz CamargoDepartment of Physiology and Pharmacology, Federal University of Santa Maria, 1000 Roraima Avenue, Building 21, Santa Maria, Rio Grande do Sul, Brazil.
Juliana Oliveira Freitas SilveiraDivision of Neurology, University Hospital of Santa Maria, Santa Maria, Brazil.
Guilherme Vargas BochiDepartment of Physiology and Pharmacology, Federal University of Santa Maria, 1000 Roraima Avenue, Building 21, Santa Maria, Rio Grande do Sul, Brazil.
Universidade Federal de Santa Maria · BRHospital Universitário de Santa Maria · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundParkinson's disease (PD) patients experience non-motor symptoms (NMS), which may appear before motor manifestations. The most common NMS is depression, affecting about 30-40% of PD patients. Both PD and depression are associated with an increased inflammatory burden, with studies showing elevation of diverse inflammatory markers in patients with both conditions.

methodsA systematic review was conducted in PubMed and PsycINFO databases to investigate what inflammatory markers are associated with PD depression (PDD). Only studies in English that measured inflammatory markers and analyzed against depression scores in PD patients were included.

resultsA total of 1132 articles were retrieved, and 14 entries were found to be eligible. Twelve were cross-sectional studies, one was a cohort, and one was a non-randomized controlled trial. IL-17A was the only marker strongly associated with PDD, while studies assessing sIL-2R and serum amyloid A found a moderate correlation. C-reactive protein, IL-10, tumor necrosis factor-α, monocyte chemoattractant protein-1, and IL-6 yielded conflicting results. Their possible roles in PDD are discussed. PDD was also related to longer disease duration and other NMS, such as anxiety, fatigue, dementia, REM sleep behavior disorder, and autonomic dysfunction.

conclusionWe suggest that these markers may be used for distinguishing isolated depression from that related to neurodegeneration, especially in individuals that concurrently present with other known prodromal symptoms of PD and other α-synucleinopathies. However, future prospective studies are warranted to confirm this hypothesis.

Indexed as

Parkinson DiseaseREM Sleep Behavior DisorderSynucleinopathiesAnxietyBiomarkersDepressionHumansBiomarkersDepressionInflammationParkinson's diseaseSystematic review

Identifiers

PMID36040559
OpenAlexW4293559848

What OpenQuestion holds

Textmetadata
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.