Evidence map›Paper›PMID 32382794›Full record

ArticleEuropean archives of psychiatry and clinical neuroscience2021

Inflammation, hippocampal volume, and cognition in schizophrenia: results from the Northern Finland Birth Cohort 1966.

Brian J Miller, Karl-Heinz Herzig, Jari Jokelainen, Toni Karhu, Sirkka Keinänen-Kiukaanniemi, Marjo-Riitta Järvelin, Juha Veijola, Heimo Viinamäki, Päivikki Tanskanen, Erika Jääskeläinen and 2 more

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Article in European archives of psychiatry and clinical neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

16 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
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  16. Anti-Inflammatory Diets and Schizophrenia.Clinical nutrition research · 2020
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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

12 authors.

Brian J MillerDepartment of Psychiatry and Health Behavior, Augusta University, 997 Saint Sebastian Way, Augusta, GA, 30912, USA. brmiller@augusta.edu.ORCID http://orcid.org/0000-0001-5056-4515
Karl-Heinz HerzigResearch Unit of Biomedicine, University of Oulu, Oulu, Finland.
Jari JokelainenMedical Research Center (MRC) and Oulu University Hospital, Oulu, Finland.
Toni KarhuResearch Unit of Biomedicine, University of Oulu, Oulu, Finland.
Sirkka Keinänen-KiukaanniemiMedical Research Center (MRC) and Oulu University Hospital, Oulu, Finland.
Marjo-Riitta JärvelinMedical Research Center (MRC) and Oulu University Hospital, Oulu, Finland.
Juha VeijolaMedical Research Center (MRC) and Oulu University Hospital, Oulu, Finland.
Heimo ViinamäkiMRC-PHE Centre for Environment and Health, School of Public Health, Imperial College London, London, UK.
Päivikki TanskanenDepartment of Pediatric Radiology, University of Oulu, Oulu, Finland.
Erika JääskeläinenDepartment of Psychiatry, Research Unit of Clinical Neuroscience, University of Oulu, Oulu, Finland.
Matti IsohanniCenter for Life Course Health Research, University of Oulu, Oulu, Finland.
Markku TimonenCenter for Life Course Health Research, University of Oulu, Oulu, Finland.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Increased blood interleukin-6 (IL-6) levels are a replicated abnormality in schizophrenia, and may be associated with smaller hippocampal volumes and greater cognitive impairment. These findings have not been investigated in a population-based birth cohort. The general population Northern Finland Birth Cohort 1966 was followed until age 43. Subjects with schizophrenia were identified through the national Finnish Care Register. Blood IL-6 levels were measured in n = 82 subjects with schizophrenia and n = 5373 controls at age 31. Additionally, 31 patients with schizophrenia and 63 healthy controls underwent brain structural MRI at age 34, and cognitive testing at ages 34 and 43. Patients with schizophrenia had significantly higher median (interquartile range) blood IL-6 levels than controls (5.31, 0.85-17.20, versus 2.42, 0.54-9.36, p = 0.02) after controlling for potential confounding factors. In both schizophrenia and controls, higher blood IL-6 levels were predictors of smaller hippocampal volumes, but not cognitive performance at age 34. We found evidence for increased IL-6 levels in patients with midlife schizophrenia from a population-based birth cohort, and replicated associations between IL-6 levels and hippocampal volumes. Our results complement and extend the previous findings, providing additional evidence that IL-6 may play a role in the pathophysiology of schizophrenia and associated brain alterations.

Indexed as

SchizophreniaAdultBirth CohortCognitionFinlandHippocampusHumansInflammationInterleukin-6Magnetic Resonance ImagingInterleukin-6Birth cohortCognitionHippocampusInterleukin-6Schizophrenia

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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.