Evidence map›Paper›PMID 32676219›Full record

ArticlePeerJ2020

Association of retinal nerve fiber abnormalities with serum CNTF and cognitive functions in schizophrenia patients.

Yanhong Liu, Lvzhen Huang, Yongsheng Tong, Jingxu Chen, Dongfang Gao, Fude Yang

Open access · goldAbstract read
In one paragraph

Article in PeerJ, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed, 2 pooled it
1.2field-weighted citation impact, top 22% 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

17 citing papers in PubMed, 2 syntheses or guidelines pooled it, 25 citations in OpenAlex.

  1. Pooled it
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  6. Thinning of central foveal thickness in the retina of patients with schizophrenia.European archives of psychiatry and clinical neuroscience · 2025
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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

6 authors at 3 institutions in 1 country.

Yanhong Liu *Peking University Huilongguan Clinical Medical School, Beijing Huilongguan Hospital, Peking University, Beijing, China.
Lvzhen Huang *People's Hospital of Peking University, Peking University, Beijing, China.
Yongsheng TongPeking University Huilongguan Clinical Medical School, Beijing Huilongguan Hospital, Peking University, Beijing, China.
Jingxu ChenPeking University Huilongguan Clinical Medical School, Beijing Huilongguan Hospital, Peking University, Beijing, China.
Dongfang GaoPeking University Huilongguan Clinical Medical School, Beijing Huilongguan Hospital, Peking University, Beijing, China.
Fude YangPeking University Huilongguan Clinical Medical School, Beijing Huilongguan Hospital, Peking University, Beijing, China.
Beijing HuiLongGuan Hospital · CNPeking University · CNPeking University People's Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent studies have reported reductions in retinal nerve fiber layers (RNFL) in schizophrenia. Ciliary neurotrophic factor (CNTF) has shown protective effects on both the neurogenesis and retina. This study aimed at investigating retinal abnormalities and establishing their correlation with serum CNTF and cognitive impairments in schizophrenic Chinese patients.

methodsIn total, 221 patients diagnosed with schizophrenia and 149 healthy controls were enrolled. Serum CNTF and clinical features of patients were investigated. Cognitive functions were evaluated with Repeatable Battery for the Assessment of Neuropsychology Status (RBANS). RNFL thickness and macular thickness (MT) of both eyes were measured with optical coherence tomography (OCT). T-tests and analysis of covariance were used to compare the variables between the patient and control groups, while multiple linear regression analysis was performed to determine the associations of RNFL thickness, CNTF and cognitive impairments.

resultsRNFL was found thinner in patients than in healthy controls (right: 88.18 ± 25.84 µm vs.102.13 ± 14.32 µm,

conclusionDecline in RNFL thickness was associated with cognitive impairments of schizophrenia and CNFT serum concentration. The possibility of reduction in RNFL thickness as a biomarker for schizophrenia needs to be further examined.

Indexed as

CNTFRetinal nerve fiverSchizophrenia

Identifiers

PMID32676219
PMCPMC7335503
OpenAlexW3040581339

What OpenQuestion holds

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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.