Evidence map›Paper›PMID 34019190›Full record

ArticleInternational ophthalmology2021

Mutational analysis of CYP1B1 gene in Iranian pedigrees with glaucoma reveals known and novel mutations.

Babak Emamalizadeh, Yousef Daneshmandpour, Somayeh Kazeminasb, Ehsan Aghaei Moghadam, Zahra Bahmanpour, Elham Alehabib, Somayeh Alinaghi, Azadeh Doozandeh, Minoo Atakhorrami, Hossein Darvish

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In one paragraph

Article in International ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed, 2 pooled it
0.9field-weighted citation impact, top 28% 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

4 citing papers in PubMed, 2 syntheses or guidelines pooled it, 5 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Mutational analysis ofSaudi journal of biological sciences · 2022
    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

10 authors at 5 institutions in 1 country.

Babak EmamalizadehDepartment of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.ORCID http://orcid.org/0000-0001-5448-351X
Yousef DaneshmandpourDepartment of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
Somayeh KazeminasbDepartment of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
Ehsan Aghaei MoghadamDepartment of Pediatrics, School of Medicine, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran.
Zahra BahmanpourDepartment of Medical Genetics, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
Elham AlehabibStudent Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Somayeh AlinaghiStudent Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Azadeh DoozandehDepartment of Ophthalmology, Torfeh Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Minoo AtakhorramiDepartment of Biology, Faculty of Basic Sciences, East Tehran Branch (Ghiamdasht), Islamic Azad University, Tehran, Iran. minooatakhorrami@yahoo.com.
Hossein DarvishDepartment of Medical Genetics, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran. darvish_mg@yahoo.com.
Tabriz University of Medical Sciences · IRShahid Beheshti University of Medical Sciences · IRChildren's Medical Center · IRIslamic Azad University, Tehran · IRSemnan University of Medical Sciences · IR

Funding

Tabriz University of Medical Sciences 63772
6 · The paper itself

Abstract

purposePrimary congenital glaucoma (PCG) (OMIM#231,300) can be caused by pathogenic sequence variations in CYP1B1, LTBP2, MYOC and PXDN genes. The purpose of this study was to investigate mutations in the CYP1B1 gene in families affected with primary congenital glaucoma (PCG) using linkage analysis and Sanger sequencing.

methodsA total number of four families with nine affected PCG patients during six months were included in this study. The mutations were identified by homozygosity mapping to find the linked loci and then direct sequencing of all coding exons, the exon-intron boundaries and the 5' untranslated region of CYP1B1 using genomic DNA obtained from affected family members and their parents. Moreover, bioinformatic tools were applied to study mutation effect on protein structure and function.

resultsA total of four mutations were identified, and three of these were novel. Two were missense mutations: One was truncating mutation, and the other was an in-frame deletion. Mutations in CYP1B1 could fully explain the PCG phenotype in all of the patients. Also, the bioinformatic study of the mutations showed the structure of the protein is affected, and it is well conserved among similar species.

conclusionIn this study, we identified 4 CYP1B1 mutations, 3 of which were novel. In silico analysis of identified mutations confirmed their molecular pathogenicity. A similar analysis will help understand the biological role of CYP1B1 and the effect of mutations on the regulatory and enzymatic functions of CYP1B1 that result in PCG. CLINICAL TRIALS REGISTRATION: Not relevant.

Indexed as

GlaucomaCytochrome P-450 CYP1B1DNA Mutational AnalysisHumansIranLatent TGF-beta Binding ProteinsMutationPedigreeCYP1B1 protein, humanCytochrome P-450 CYP1B1Latent TGF-beta Binding ProteinsLTBP2 protein, humanCYP1B1Novel mutationPrimary congenital glaucoma (PCG)Sanger sequencing

Identifiers

PMID34019190
OpenAlexW3160476962

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.