Evidence map›Paper›PMID 24917137›Full record

ArticleInvestigative ophthalmology & visual science2014

RNA expression analysis of passive transfer myasthenia supports extraocular muscle as a unique immunological environment.

Yuefang Zhou, Henry J Kaminski, Bendi Gong, Georgiana Cheng, Jason M Feuerman, Linda Kusner

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.1field-weighted citation impact, top 23% 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, 22 citations in OpenAlex.

  1. Review
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  3. Pathophysiology of Childhood-Onset Myasthenia: Abnormalities of Neuromuscular Junction and Autoimmunity and Its Background.Pathophysiology : the official journal of the International Society for Pathophysiology · 2023
    Review
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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 4 institutions in 1 country.

Yuefang ZhouDepartment of Ophthalmology and Visual Sciences, Washington University, St. Louis, Missouri, United States.
Henry J KaminskiDepartments of Neurology, Pharmacology, and Physiology, George Washington University, Washington, DC, United States.
Bendi GongDepartment of Pediatrics, Washington University, St. Louis, Missouri, United States.
Georgiana ChengDepartment of Pathobiology, Cleveland Clinic, Cleveland, Ohio, United States.
Jason M FeuermanDepartment of Ophthalmology, Baylor College of Medicine, Houston, Texas, United States.
Linda KusnerDepartments of Neurology, Pharmacology, and Physiology, George Washington University, Washington, DC, United States.
George Washington University · USBaylor College of Medicine · USCleveland Clinic · USWashington University in St. Louis · US

Funding

Targeted Therapies for Myasthenia GravisR24EY014837 · NEI · SAINT LOUIS UNIVERSITY · PI KAMINSKI, HENRY J · 2003 to 2007
$4.9M
NEI NIH HHS R24 EY014837NEI NIH HHS R24EY014837
6 · The paper itself

Abstract

purposeMyasthenia gravis demonstrates a distinct predilection for involvement of the extraocular muscles (EOM), and we have hypothesized that this may be due to a unique immunological environment. To assess this hypothesis, we took an unbiased approach to analyze RNA expression profiles in EOM, diaphragm, and extensor digitorum longus (EDL) in rats with experimentally acquired myasthenia gravis (EAMG).

methodsExperimentally acquired myasthenia gravis was induced in rats by intraperitoneal injection of antibody directed against the acetylcholine receptor (AChR), whereas control rats received antibody known to bind the AChR but not induce disease. After 48 hours, animals were killed and muscles analyzed by RNA expression profiling. Profiling results were validated using qPCR and immunohistochemical analysis.

resultsSixty-two genes common among all muscle groups were increased in expression. These fell into four major categories: 12.8% stress response, 10.5% immune response, 10.5% metabolism, and 9.0% transcription factors. EOM expressed 212 genes at higher levels, not shared by the other two muscles, and a preponderance of EOM gene changes fell into the immune response category. EOM had the most uniquely reduced genes (126) compared with diaphragm (26) and EDL (50). Only 18 downregulated genes were shared by the three muscles. Histological evaluation and disease load index (sum of fold changes for all genes) demonstrated that EOM had the greatest degree of pathology.

conclusionsOur studies demonstrated that consistent with human myasthenia gravis, EOM demonstrates a distinct RNA expression signature from EDL and diaphragm, which is based on differences in the degree of muscle injury and inflammatory response.

Indexed as

AutoimmunityGene Expression RegulationAnimalsAutoantibodiesFemaleImmunohistochemistryMicroarray AnalysisMuscle, SkeletalMyasthenia Gravis, Autoimmune, ExperimentalNeuromuscular JunctionRatsRats, Inbred LewReal-Time Polymerase Chain ReactionReceptors, CholinergicRNAAutoantibodiesReceptors, CholinergicRNAacetylcholine receptorautoimmunitycomplementmyasthenia gravisskeletal muscle

Identifiers

PMID24917137
PMCPMC4102389
OpenAlexW2065227225

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.