Evidence map›Paper›PMID 19084518›Full record

ReviewExperimental eye research2009

Evidence for a calcification process in the trabecular meshwork.

Teresa Borrás, Núria Comes

Open access · greenAbstract readReview
In one paragraph

Review in Experimental eye research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed
0.8field-weighted citation impact, top 27% 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

29 citing papers in PubMed, 43 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

2 authors at 1 institution in 1 country.

Teresa BorrásDepartment of Ophthalmology, University of North Carolina School of Medicine, Chapel Hill, NC 27599-7041, USA. tborras@med.unc.edu
Núria Comes
University of North Carolina at Chapel Hill · US

Funding

REGULATION OF OUTFLOW FACILITY BY GENE TRANSFERR01EY011906 · NEI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BORRAS, TERESA · 1997 to 2016
$5.6M
PRESSURE REGULATION OF HUMAN TRABECULAR MESHWORK GENESR01EY013126 · NEI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI BORRAS, TERESA · 2000 to 2012
$4.1M
NEI NIH HHS EY11906NEI NIH HHS EY13126NEI NIH HHS R01 EY011906NEI NIH HHS R01 EY013126
6 · The paper itself

Abstract

The human trabecular meshwork (TM) expresses many genes that have been associated with physiological (bone, cartilage, teeth) and pathological (vascular systems, kidney) calcification. In particular, the TM highly expresses the inhibitor of calcification Matrix Gla (MGP) gene, which encodes a vitamin K-dependent protein that requires post-translational activation to inhibit the formation of calcium precipitates. TM cells have high activity of the activating gamma-carboxylase enzyme and produce active MGP. Silencing MGP increases the activity of alkaline phosphatase (ALP), an enzyme of the matrix vesicles and marker of calcification. Overexpressing MGP reduces the ALP activity induced by bone morphogenetic 2 (BMP2), a potent inducer of calcification. In this review we gathered evidence for the existence of a mineralization process in the TM. We selected twenty regulatory calcification genes, reviewed their functions in their original tissues and looked at their relative abundance in the TM by heat maps derived from existing microarrays. Although results are not yet fully conclusive and more experiments are needed, examining TM expression in the light of the calcification literature brings up many similarities. One such parallel is the role of mechanical forces in bone induction and the high levels of mineralization inhibitors found in the constantly mechanically stressed TM. During the next few years, examination of other calcification-related regulatory genes and pathways, as well as morphological examination of knockout animals, would help to elucidate the relevance of a calcification process to TM's overall function.

Indexed as

Calcification, PhysiologicCalcinosisEye DiseasesEye ProteinsHumansTrabecular MeshworkEye Proteins

Identifiers

PMID19084518
PMCPMC2670947
OpenAlexW2069543726

What OpenQuestion holds

Textmetadata
LicenceTDM
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.