Evidence map›Paper›PMID 11673296›Full record

ArticleThe British journal of ophthalmology2001

Plasma homocysteine, methylene tetrahydrofolate reductase C677T and factor II G20210A polymorphisms, factor VIII, and VWF in central retinal vein occlusion.

S Boyd, D Owens, T Gin, K Bunce, H Sherafat, D Perry, P G Hykin

Open access · bronzeAbstract read
In one paragraph

Article in The British journal of ophthalmology, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 2 pooled it
0.9field-weighted citation impact, top 29% 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, 2 syntheses or guidelines pooled it, 69 citations in OpenAlex.

  1. Genetic correlation between Prothrombin G20210A polymorphism and retinal vein occlusion risk.Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologica · 2019
    Pooled it
  2. Pooled it
  3. Review
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  11. Hyperhomocysteinemia and low plasma folate as risk factors for central retinal vein occlusion: a case-control study in a Chinese population.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2006
    Article
  12. Plasma and aqueous humour levels of homocysteine in exfoliation syndrome.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2004
    Article
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

7 authors at 1 institution in 1 country.

S BoydMoorfields Eye Hospital, City Road, London EC1V 2PD, UK.
D Owens
T Gin
K Bunce
H Sherafat
D Perry
P G Hykin
Moorfields Eye Hospital NHS Foundation Trust · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo determine whether plasma homocysteine, methylene tetrahydrofolate reductase (MTHFR) C677T and factor II G20210A polymorphisms, factor VIII, and vWF are risk factors for central retinal vein occlusion (CRVO).

methodProspective comparison of 63 consecutive patients with central retinal vein occlusion and 63 age matched controls. Plasma homocysteine and vWF were estimated by ELISA, the MTFHR and factor II G20210A polymorphisms determined by polymerase chain reaction with restriction enzyme product digestion and factor VIII by one stage automated clotting assay.

resultsPlasma homocysteine (patients: median 12.4 micromol/l, controls: median 11.6 micromol OR = 1.05, p=0.20), factor VIII (patients: median = 115 U/dl, controls: median = 113 U/dl), and vWF (patients: median = 115 U/dl, controls: median = 108 U/dl) were not statistically higher in patients than in controls. Five CRVO patients and seven controls were homozygous for the MTHFR C677T mutation. One control was heterozygous for the factor II G20210A mutation.

conclusionThis study has not identified new risk factors for CRVO.

Indexed as

Blood CoagulationCase-Control StudiesEnzyme-Linked Immunosorbent AssayFactor VIIIHomocysteineHumansLogistic ModelsMethylenetetrahydrofolate Dehydrogenase (NADP)Middle AgedMutationPolymerase Chain ReactionPolymorphism, GeneticProspective StudiesProthrombinRetinal Vein Occlusionvon Willebrand FactorFactor VIIIHomocysteineMethylenetetrahydrofolate Dehydrogenase (NADP)Prothrombinvon Willebrand Factor

Identifiers

PMID11673296
PMCPMC1723784
OpenAlexW1969365687

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.