Evidence map›Paper›PMID 32943089›Full record

ArticleAlzheimer's research & therapy2020

Neurofilament light chain in the vitreous humor of the eye.

Manju L Subramanian, Viha Vig, Jaeyoon Chung, Marissa G Fiorello, Weiming Xia, Henrik Zetterberg, Kaj Blennow, Madeleine Zetterberg, Farah Shareef, Nicole H Siegel and 3 more

Open access · goldAbstract read
In one paragraph

Article in Alzheimer's research & therapy, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.1field-weighted citation impact, top 12% 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, 25 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

13 authors at 4 institutions in 3 countries.

Manju L SubramanianDepartment of Ophthalmology, Boston Medical Center, Boston University School of Medicine, 85 E Concord St. #8813, Boston, MA, 02118, USA. Manju.Subramanian@bmc.org.ORCID 0000-0002-0061-098X
Viha VigDepartment of Ophthalmology, Boston Medical Center, Boston University School of Medicine, 85 E Concord St. #8813, Boston, MA, 02118, USA.
Jaeyoon ChungDepartment of Medicine (Biomedical Genetics Section), Boston University School of Medicine, Boston, MA, USA.
Marissa G FiorelloDepartment of Ophthalmology, Boston Medical Center, Boston University School of Medicine, 85 E Concord St. #8813, Boston, MA, 02118, USA.
Weiming XiaDepartment of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, MA, USA.
Henrik ZetterbergDepartment of Psychiatry and Neurochemistry at Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.
Kaj BlennowDepartment of Psychiatry and Neurochemistry at Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.
Madeleine ZetterbergDepartment of Clinical Neuroscience at Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.
Farah ShareefDepartment of Ophthalmology, University of Illinois at Chicago School of Medicine, Chicago, IL, USA.
Nicole H SiegelDepartment of Ophthalmology, Boston Medical Center, Boston University School of Medicine, 85 E Concord St. #8813, Boston, MA, 02118, USA.
Steven NessDepartment of Ophthalmology, Boston Medical Center, Boston University School of Medicine, 85 E Concord St. #8813, Boston, MA, 02118, USA.
Gyungah R JunDepartment of Medicine (Biomedical Genetics Section), Boston University School of Medicine, Boston, MA, USA.
Thor D SteinBoston University Alzheimer's Disease and CTE Center, Boston University School of Medicine, Boston, MA, USA.
Boston University · USSahlgrenska University Hospital · SEUniversity of Gothenburg · SEUniversity of Illinois Chicago · US

Funding

Epigenetic changes in synaptic and inflammatory genes involved in the age-dependent development of Alzheimer's disease pathologies andcognitive declineRF1AG054156 · NIA · BOSTON UNIVERSITY MEDICAL CAMPUS · PI AU, RHODA, RYU, HOON · 2016 to 2018
$3.4M
Eye to Brain: Eye Biomarkers and CognitionR03AG063255 · NIA · BOSTON MEDICAL CENTER · PI SUBRAMANIAN, MANJU · 2019 to 2020
$371k
CSRD VA I01 CX001038NIA NIH HHS R03 AG063255NIA NIH HHS R03AG063255NIA NIH HHS RF1 AG054156NIA NIH HHS RF1AG054156
6 · The paper itself

Abstract

backgroundNeurofilament light chain (NfL) is a promising biomarker of neurodegeneration in the cerebrospinal fluid and blood. This study investigated the presence of NfL in the vitreous humor and its associations with amyloid beta, tau, inflammatory cytokines and vascular proteins, apolipoprotein E (APOE) genotypes, Mini-Mental State Examination (MMSE) scores, systemic disease, and ophthalmic diseases.

methodsThis is a single-site, prospective, cross-sectional cohort study. Undiluted vitreous fluid (0.5-1.0 mL) was aspirated during vitrectomy, and whole blood was drawn for APOE genotyping. NfL, amyloid beta (Aβ), total Tau (t-Tau), phosphorylated Tau (p-Tau181), inflammatory cytokines, chemokines, and vascular proteins in the vitreous were quantitatively measured by immunoassay. The main outcome measures were the detection of NfL levels in the vitreous humor and its associations with the aforementioned proteins. Linear regression was used to test the associations of NfL with other proteins, APOE genotypes, MMSE scores, and ophthalmic and systemic diseases after adjustment for age, sex, education level, and other eye diseases.

resultsNfL was detected in all 77 vitreous samples. NfL was not found to be associated with ophthalmic conditions, APOE genotypes, MMSE scores, or systemic disease (p > 0.05). NfL levels were positively associated with increased vitreous levels of Aβ

conclusionNfL is detectable in the vitreous humor of the eye and significantly associated with amyloid beta, t-tau, and select inflammatory and vascular proteins in the vitreous. Additionally, NfL was not associated with patients' clinical eye condition. Our results serve as a foundation for further investigation of NfL in the ocular fluids to inform us about the potential utility of its presence in the eye.

Indexed as

Alzheimer DiseaseAmyloid beta-PeptidesBiomarkersCross-Sectional StudiesHumansIntermediate FilamentsNeurofilament ProteinsProspective Studiestau ProteinsVascular Endothelial Growth Factor AVitreous BodyAmyloid beta-PeptidesBiomarkersNeurofilament Proteinstau ProteinsVascular Endothelial Growth Factor AAlzheimer’s diseaseAmyloid betaNeuro-filament light chainOcular biomarkersTauVitreous humor

Identifiers

PMID32943089
PMCPMC7500015
OpenAlexW3087460625

What OpenQuestion holds

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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.