Evidence map›Paper›PMID 25977936›Full record

ArticleNeurology(R) neuroimmunology & neuroinflammation2015

Hippocampal volume and depressive symptoms are linked to serum IL-18 in schizophrenia.

Paola Bossù, Fabrizio Piras, Ilaria Palladino, Mariangela Iorio, Francesca Salani, Antonio Ciaramella, Chiara Chiapponi, Carlo Caltagirone, Gianfranco Spalletta

Open access · goldAbstract read
In one paragraph

Article in Neurology(R) neuroimmunology & neuroinflammation, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 3 pooled it
0.6field-weighted citation impact, top 38% 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

13 citing papers in PubMed, 3 syntheses or guidelines pooled it, 22 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

9 authors at 1 institution in 1 country.

Paola BossùDepartment of Clinical and Behavioral Neurology (P.B., F.P., I.P., M.I., F.S., A.C., C. Chiapponi, C. Caltagirone, G.S.), IRCCS Santa Lucia Foundation, Rome, Italy; Department of Neuroscience (C. Caltagirone), University "Tor Vergata," Rome, Italy; and Menninger Department of Psychiatry and Behavioral Sciences (G.S.), Baylor College of Medicine, Houston, TX.
Fabrizio PirasDepartment of Clinical and Behavioral Neurology (P.B., F.P., I.P., M.I., F.S., A.C., C. Chiapponi, C. Caltagirone, G.S.), IRCCS Santa Lucia Foundation, Rome, Italy; Department of Neuroscience (C. Caltagirone), University "Tor Vergata," Rome, Italy; and Menninger Department of Psychiatry and Behavioral Sciences (G.S.), Baylor College of Medicine, Houston, TX.
Ilaria PalladinoDepartment of Clinical and Behavioral Neurology (P.B., F.P., I.P., M.I., F.S., A.C., C. Chiapponi, C. Caltagirone, G.S.), IRCCS Santa Lucia Foundation, Rome, Italy; Department of Neuroscience (C. Caltagirone), University "Tor Vergata," Rome, Italy; and Menninger Department of Psychiatry and Behavioral Sciences (G.S.), Baylor College of Medicine, Houston, TX.
Mariangela IorioDepartment of Clinical and Behavioral Neurology (P.B., F.P., I.P., M.I., F.S., A.C., C. Chiapponi, C. Caltagirone, G.S.), IRCCS Santa Lucia Foundation, Rome, Italy; Department of Neuroscience (C. Caltagirone), University "Tor Vergata," Rome, Italy; and Menninger Department of Psychiatry and Behavioral Sciences (G.S.), Baylor College of Medicine, Houston, TX.
Francesca SalaniDepartment of Clinical and Behavioral Neurology (P.B., F.P., I.P., M.I., F.S., A.C., C. Chiapponi, C. Caltagirone, G.S.), IRCCS Santa Lucia Foundation, Rome, Italy; Department of Neuroscience (C. Caltagirone), University "Tor Vergata," Rome, Italy; and Menninger Department of Psychiatry and Behavioral Sciences (G.S.), Baylor College of Medicine, Houston, TX.
Antonio CiaramellaDepartment of Clinical and Behavioral Neurology (P.B., F.P., I.P., M.I., F.S., A.C., C. Chiapponi, C. Caltagirone, G.S.), IRCCS Santa Lucia Foundation, Rome, Italy; Department of Neuroscience (C. Caltagirone), University "Tor Vergata," Rome, Italy; and Menninger Department of Psychiatry and Behavioral Sciences (G.S.), Baylor College of Medicine, Houston, TX.
Chiara ChiapponiDepartment of Clinical and Behavioral Neurology (P.B., F.P., I.P., M.I., F.S., A.C., C. Chiapponi, C. Caltagirone, G.S.), IRCCS Santa Lucia Foundation, Rome, Italy; Department of Neuroscience (C. Caltagirone), University "Tor Vergata," Rome, Italy; and Menninger Department of Psychiatry and Behavioral Sciences (G.S.), Baylor College of Medicine, Houston, TX.
Carlo CaltagironeDepartment of Clinical and Behavioral Neurology (P.B., F.P., I.P., M.I., F.S., A.C., C. Chiapponi, C. Caltagirone, G.S.), IRCCS Santa Lucia Foundation, Rome, Italy; Department of Neuroscience (C. Caltagirone), University "Tor Vergata," Rome, Italy; and Menninger Department of Psychiatry and Behavioral Sciences (G.S.), Baylor College of Medicine, Houston, TX.
Gianfranco SpallettaDepartment of Clinical and Behavioral Neurology (P.B., F.P., I.P., M.I., F.S., A.C., C. Chiapponi, C. Caltagirone, G.S.), IRCCS Santa Lucia Foundation, Rome, Italy; Department of Neuroscience (C. Caltagirone), University "Tor Vergata," Rome, Italy; and Menninger Department of Psychiatry and Behavioral Sciences (G.S.), Baylor College of Medicine, Houston, TX.
University of Rome Tor Vergata · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveSince schizophrenia (SCZ) is often accompanied by hippocampal abnormalities and dysregulation of cytokine production, this study aimed to investigate the impact of the cytokine interleukin (IL)-18, whose biological system appears to be perturbed in SCZ, on brain structure and clinical severity in patients with chronic SCZ.

methodsThe serum levels of IL-18, including its free bioactive form (i.e., the cytokine fraction not bound to its specific endogenous inhibitor IL-18 binding protein), were evaluated in a case-control study involving 71 individuals with SCZ diagnosis and 29 healthy controls. All participants underwent brain MRI automatic evaluation for hippocampal volume estimation. The Positive and Negative Syndrome Scale (PANSS) was administered to measure severity of symptoms in patients with SCZ.

resultsLower amounts of free IL-18 were related to smaller hippocampal volume measures in patients with SCZ. Furthermore, in line with a possible neuroprotective effect of the cytokine, higher levels of free IL-18 corresponded to lower subscores of PANSS depression in patients with SCZ.

conclusionsThese findings demonstrate that the levels of circulating bioactive IL-18 are related to both hippocampal volume and severity of psychopathologic symptoms in patients with SCZ, confirming the involvement of the cytokine in SCZ pathophysiology and suggesting hippocampal-dependent and neuroprotective functions of IL-18 in this clinical context.

Identifiers

PMID25977936
PMCPMC4426680
OpenAlexW2246245122

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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.