Evidence map›Paper›PMID 23113023›Full record

ArticleIranian journal of public health2010

Leber hereditary optic neuropathy: do folate pathway gene alterations influence the expression of mitochondrial DNA mutation?

A Aleyasin, M Ghazanfari, M Houshmand

Open access · greenAbstract read
In one paragraph

Article in Iranian journal of public health, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact, top 86% 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

3 citing papers in PubMed, 6 citations in OpenAlex.

  1. Maculopapillary Bundle Degeneration in Optic Neuropathies.Current neurology and neuroscience reports · 2024
    Review
  2. Review
  3. Folic acid deficiency and vision: a review.Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie · 2019
    Review
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

3 authors at 1 institution in 1 country.

A AleyasinDept. of Medical Genetics, National Institute of Genetic Engineering and Biotechnology, Tehran, Iran.
M Ghazanfari
M Houshmand
National Institute of Genetic Engineering and Biotechnology · IR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundLeber hereditary optic neuropathy (LHON) is an inherited form of bilateral optic atrophy leading to the loss of central vision. The primary cause of vision loss is mutation in the mitochondrial DNA (mtDNA), however, unknown secondary genetic and/or epigenetic risk factors are suggested to influence its neuropathology. In this study folate gene polymorphisms were examined as a possible LHON secondary genetic risk factor in Iranian patients.

methodsCommon polymorphisms in the MTHFR (C677T and A1298C) and MTRR (A66G) genes were tested in 21 LHON patients and 150 normal controls.

resultsStrong associations were observed between the LHON syndrome and C677T (P= 0.00) and A66G (P= 0.00) polymorphisms. However, no significant association was found between A1298C (P =0.69) and the LHON syndrome.

conclusionThis is the first study that shows MTHFR C677T and MTRR A66G polymorphisms play a role in the etiology of the LHON syndrome. This finding may help in the better understanding of mechanisms involved in neural degeneration and vision loss by LHON and hence the better treatment of patients.

Indexed as

FolateFolic acidLHONMTHFRMTRR

Identifiers

PMID23113023
PMCPMC3481624
OpenAlexW2144722687

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.