Evidence map›Paper›PMID 33856596›Full record

ArticleInternational ophthalmology2021

Exploring the role of macular thickness as a potential early biomarker of neurodegeneration in acute schizophrenia.

Sukanto Sarkar, A R Rajalakshmi, S Avudaiappan, S Eswaran

Abstract read
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In one paragraph

Article in International ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 3 pooled it
2.1field-weighted citation impact, top 13% 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

12 citing papers in PubMed, 3 syntheses or guidelines pooled it, 19 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Thinning of central foveal thickness in the retina of patients with schizophrenia.European archives of psychiatry and clinical neuroscience · 2025
    Article
  5. Review
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  10. Tubulin deacetylase NDST3 modulates lysosomal acidification: Implications in neurological diseases.BioEssays : news and reviews in molecular, cellular and developmental biology · 2022
    Article
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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.

Sukanto SarkarDepartment of Psychiatry, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth (SBV) Deemed To Be University, Puducherry, India.ORCID http://orcid.org/0000-0002-9458-6238
A R RajalakshmiDepartment of Ophthalmology, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth (SBV) Deemed To Be University, Puducherry, India. ar_radha@hotmail.com.ORCID http://orcid.org/0000-0003-3224-4053
S AvudaiappanDepartment of Psychiatry, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth (SBV) Deemed To Be University, Puducherry, India.
S EswaranDepartment of Psychiatry, Mahatma Gandhi Medical College and Research Institute, Sri Balaji Vidyapeeth (SBV) Deemed To Be University, Puducherry, India.
Mahatma Gandhi Medical College and Research Institute · INAll India Institute of Medical Sciences Raipur · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe retina has been investigated as a gateway to assess the neurodegenerative changes in the brain. Schizophrenia is also conceptualized as a neurodegenerative disorder like Alzheimer's and Parkinson's disease. The current literature suggests reduced retinal nerve fibre layer (RNFL) thickness and macular thickness (MT), as a marker of neurodegeneration, in patient suffering from chronic schizophrenia. This study aims to compare RNFL thickness and MT in acute schizophrenic patients with age and sex matched healthy controls.

methodsTwenty acutely ill schizophrenic patients and 20 normal controls were included in the study after proper informed consent. RNFL thickness and MT was measured using spectral domain Optical Coherence Tomography after clinical psychological assessment and ocular examination.

resultsThe two groups were comparable in terms of socio-demographic variables. The average RNFL thickness of patients and healthy controls was 102.11 ± 29.18 µm and 105.14 ± 27.35 µm, respectively. Central macular thickness was 181.12 ± 13.63 µm in patients and 234.58 ± 10.71 µm in controls. There was a statistically significant reduction in thickness of macula (p < 0.05) but not for RNFL (p = 0.339).

conclusionThe study concludes that macular thinning rather than reduced RNFL is an early manifestation in acute schizophrenia patients and can be considered as a potential early biomarker of neurodegeneration in schizophrenia.

Indexed as

Macula LuteaSchizophreniaBiomarkersHumansNerve FibersRetinaRetinal Ganglion CellsTomography, Optical CoherenceBiomarkersMacular thicknessNeurodegenerative disorderOptical coherence tomographyRetinal nerve fibre layer thicknessSchizophrenia

Identifiers

PMID33856596
OpenAlexW3156089956

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.