Evidence map›Paper›PMID 34312912›Full record

ArticleNeuropathology and applied neurobiology2022

Expression pattern of perilipins in human brain during aging and in Alzheimer's disease.

Maria Conte, Valentina Medici, Davide Malagoli, Antonio Chiariello, Alice Cirrincione, Annalisa Davin, Maia Chikhladze, Francesco Vasuri, Giuseppe Legname, Isidre Ferrer and 6 more

Open access · hybridAbstract read
In one paragraph

Article in Neuropathology and applied neurobiology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 44 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

16 authors at 10 institutions in 3 countries.

Maria ConteDepartment of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy.ORCID 0000-0002-4621-9898
Valentina MediciDepartment of Neurology and Neuropathology, Golgi-Cenci Foundation, Milan, Italy.
Davide MalagoliDepartment of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy.
Antonio ChiarielloDepartment of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy.
Alice CirrincioneDepartment of Neurology and Neuropathology, Golgi-Cenci Foundation, Milan, Italy.
Annalisa DavinDepartment of Neurology and Neuropathology, Golgi-Cenci Foundation, Milan, Italy.
Maia ChikhladzeDepartment of Neurology and Neuropathology, Golgi-Cenci Foundation, Milan, Italy.
Francesco VasuriPathology Unit, S. Orsola-Malpighi Bologna Authority Hospital, Bologna, Italy.
Giuseppe LegnameLaboratory of Prion Biology, Department of Neuroscience, Scuola Internazionale Superiore di Studi Avanzati (SISSA), Trieste, Italy.ORCID 0000-0003-0716-4393
Isidre FerrerDepartment of Pathology and Experimental Therapeutics, Institute of Neurosciences, University of Barcelona, Barcelona, Spain.ORCID 0000-0001-9888-8754
Silvia VanniOsteoncology and Rare Tumors Center, IRCCS Istituto Romagnolo Per Lo Studio Dei Tumori (IRST) "Dino Amadori", Meldola, Italy.
Gabriella MarconDAME, University of Udine, Udine, Italy.
Tino Emanuele PoloniDepartment of Neurology and Neuropathology, Golgi-Cenci Foundation, Milan, Italy.
Antonio GuaitaDepartment of Neurology and Neuropathology, Golgi-Cenci Foundation, Milan, Italy.
Claudio FranceschiInstitute of Information Technologies, Mathematics and Mechanics, Lobachevsky University, Nizhniy Novgorod, Russia.
Stefano SalvioliDepartment of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy.
Fondazione Golgi Cenci · ITUniversity of Bologna · ITBellvitge University Hospital · ESIRCCS Azienda Ospedliero-Universitaria di Bologna Policlinico di Sant'Orsola · ITIstituto Scientifico Romagnolo per lo Studio e la Cura dei Tumori · ITN. I. Lobachevsky State University of Nizhny Novgorod · RUScuola Internazionale Superiore di Studi Avanzati · ITUniversity of Milan · ITUniversity of Modena and Reggio Emilia · ITUniversity of Udine · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsPerilipins are conserved proteins that decorate intracellular lipid droplets and are essential for lipid metabolism. To date, there is limited knowledge on their expression in human brain or their involvement in brain aging and neurodegeneration. The aim of this study was to characterise the expression levels of perilipins (Plin1-Plin5) in different cerebral areas from subjects of different age, with or without signs of neurodegeneration.

methodsWe performed real-time RT-PCR, western blotting, immunohistochemistry and confocal microscopy analyses in autoptic brain samples of frontal and temporal cortex, cerebellum and hippocampus from subjects ranging from 33 to 104 years of age, with or without histological signs of neurodegeneration. To test the possible relationship between Plins and inflammation, correlation analysis with IL-6 expression was also performed.

resultsPlin2, Plin3 and Plin5, but not Plin1 and Plin4, are expressed in the considered brain areas with different intensities. Plin2 appears to be expressed more in grey matter, particularly in neurons in all the areas analysed, whereas Plin3 and Plin5 appear to be expressed more in white matter. Plin3 seems to be expressed more in astrocytes. Only Plin2 expression is higher in old subjects and patients with early tauopathy or Alzheimer's disease and is associated with IL-6 expression.

conclusionsPerilipins are expressed in human brain but only Plin2 appears to be modulated with age and neurodegeneration and linked to an inflammatory state. We propose that the accumulation of lipid droplets decorated with Plin2 occurs during brain aging and that this accumulation may be an early marker and initial step of inflammation and neurodegeneration.

Indexed as

Alzheimer DiseasePerilipinsAgingBrainHumansPerilipin-2Perilipin-2Perilipinsbrainhuman aginginflammationneurodegenerative diseasesperilipins

Identifiers

PMID34312912
PMCPMC9291275
OpenAlexW3185981577

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.