Evidence map›Paper›PMID 19754948›Full record

ArticleBMC medical genetics2009

Evaluation of nine candidate genes in patients with normal tension glaucoma: a case control study.

Christiane Wolf, Eugen Gramer, Bertram Müller-Myhsok, Francesca Pasutto, Eva Reinthal, Bernd Wissinger, Nicole Weisschuh

Open access · goldAbstract read
In one paragraph

Article in BMC medical genetics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 1 pooled it
4.4field-weighted citation impact, top 6% 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

18 citing papers in PubMed, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Review
  6. Review
  7. Review
  8. Article
  9. Normal-tension glaucoma: Pathogenesis and genetics.Experimental and therapeutic medicine · 2019
    Review
  10. Review
  11. The current research status of normal tension glaucoma.Clinical interventions in aging · 2014
    Review
  12. Article
  13. Article
  14. Mitochondrial disorders and the eye.Current opinion in ophthalmology · 2011
    Review
  15. Review
  16. Review
  17. Glaucoma: genes, phenotypes, and new directions for therapy.The Journal of clinical investigation · 2010
    Review
  18. 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 3 institutions in 1 country.

Christiane WolfCentre for Ophthalmology, Institute for Ophthalmic Research, Molecular Genetics Laboratory, Tuebingen, Germany. cwolf@mpipsykl.mpg.de
Eugen Gramer
Bertram Müller-Myhsok
Francesca Pasutto
Eva Reinthal
Bernd Wissinger
Nicole Weisschuh
STZ eyetrial · DEFriedrich-Alexander-Universität Erlangen-Nürnberg · DEMax Planck Institute of Psychiatry · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNormal tension glaucoma is a major subtype of glaucoma, associated with intraocular pressures that are within the statistically normal range of the population. Monogenic forms following classical inheritance patterns are rare in this glaucoma subtype. Instead, multigenic inheritance is proposed for the majority of cases. The present study tested common sequence variants in candidate genes for association with normal tension glaucoma in the German population.

methodsNinety-eight SNPs were selected to tag the common genetic variation in nine genes, namely OPTN (optineurin), RDX (radixin), SNX16 (sorting nexin 16), OPA1 (optic atrophy 1), MFN1 (mitofusin 1), MFN2 (mitofusin 2), PARL (presenilin associated, rhomboid-like), SOD2 (superoxide dismutase 2, mitochondrial) and CYP1B1 (cytochrome P450, family 1, subfamily B, polypeptide 1). These SNPs were genotyped in 285 cases and 282 fully evaluated matched controls. Statistical analyses comprised single polymorphism association as well as haplogroup based association testing.

resultsResults suggested that genetic variation in five of the candidate genes (RDX, SNX16, OPA1, SOD2 and CYP1B1) is unlikely to confer major risk to develop normal tension glaucoma in the German population. In contrast, we observed a trend towards association of single SNPs in OPTN, MFN1, MFN2 and PARL. The SNPs of OPTN, MFN2 and PARL were further analysed by multimarker haplotype-based association testing. We identified a risk haplotype being more frequent in patients and a vice versa situation for the complementary protective haplotype in each of the three genes.

conclusionCommon variants of OPTN, PARL, MFN1 and MFN2 should be analysed in other cohorts to confirm their involvement in normal tension glaucoma.

Indexed as

Genetic Predisposition to DiseaseAgedAged, 80 and overCase-Control StudiesFemaleGenetic MarkersGenotypeGlaucoma, Open-AngleHumansMaleMiddle AgedPolymorphism, Single NucleotideGenetic Markers

Identifiers

PMID19754948
PMCPMC2751751
OpenAlexW2120723437

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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.