Evidence map›Paper›PMID 29168043›Full record

ArticleGraefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie2018

Role of CYP1B1, p.E229K and p.R368H mutations among 120 families with sporadic juvenile onset open-angle glaucoma.

Viney Gupta, Bindu I Somarajan, Gagandeep Kaur Walia, Jasbir Kaur, Sunil Kumar, Shikha Gupta, Abadh K Chaurasia, Dinesh Gupta, Abhinav Kaushik, Aditi Mehta and 2 more

Abstract read
PubMed Publisher
In one paragraph

Article in Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 16% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 16 citations in OpenAlex.

  1. Pooled it
  2. Insights intoLife (Basel, Switzerland) · 2025
    Review
  3. Distribution ofMolecular vision · 2023
    Article
  4. Myopia in India.Clinical ophthalmology (Auckland, N.Z.) · 2022
    Review
  5. Article
  6. Article
  7. Article
  8. Article
  9. Screening ofMolecular biology research communications · 2018
    Article
  10. 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

12 authors at 4 institutions in 1 country.

Viney GuptaDr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, 110029, India. gupta_v20032000@yahoo.com.
Bindu I SomarajanDr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, 110029, India.
Gagandeep Kaur WaliaPublic Health Foundation of India, Gurgaon, India.
Jasbir KaurDepartment of Ocular Biochemistry, All India Institute of Medical Sciences, New Delhi, India.
Sunil KumarDepartment of Ocular Biochemistry, All India Institute of Medical Sciences, New Delhi, India.
Shikha GuptaDr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, 110029, India.
Abadh K ChaurasiaDr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, 110029, India.
Dinesh GuptaInternational Centre for Genetic Engineering and Biotechnology, New Delhi, India.
Abhinav KaushikInternational Centre for Genetic Engineering and Biotechnology, New Delhi, India.
Aditi MehtaDr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, 110029, India.
Vipin GuptaDepartment of Anthropology, University of Delhi, New Delhi, India.
Arundhati SharmaDepartment of Anatomy, All India Institute of Medical Sciences, New Delhi, India.
All India Institute of Medical Sciences · INInternational Centre for Genetic Engineering and Biotechnology · INUniversity of Delhi · INPublic Health Foundation of India · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundTo determine the frequency of CYP1B1 p.E229K and p.R368H, gene mutations in a cohort of sporadic juvenile onset open-angle glaucoma (JOAG) patients and to evaluate their genotype/phenotype correlation.

methodsUnrelated JOAG patients whose first-degree relatives had been examined and found to be unaffected were included in the study. The patients and their parents were screened for p.E229K and p.R368H mutations. The phenotypic characteristics were compared between probands carrying the mutations and those who did not carry these mutations.

resultsOut of 120 JOAG patients included in the study, the p.E229K mutation was seen in 9 probands (7.5%) and p.R368H in 7 (5.8%). The average age of onset of the disease (p = 0.3) and the highest untreated IOP (p = 0.4) among those carrying mutations was not significantly different from those who did not have these mutations. The proportion of probands with angle dysgenesis among those with p.E229K and p.R368H mutations was 70% (11 out of 16) in comparison to 65% (67 out of 104) of those who did not harbour these mutations (p = 0.56). Similarly, the probands with moderate to high myopia among those with p.E229K and p.R368H mutations was 20% (3 out of 16) in comparison to 18% (18 out of 104) of those who did not harbour these mutations (p = 0.59).

conclusionThe frequency of p.E229K and p.R368H mutations of the CYP1B1 gene is low even among sporadic JOAG patients. Moreover, there is no clinical correlation between the presence of these mutations and disease severity.

Indexed as

Genetic Predisposition to DiseaseIntraocular PressureMutationAdultAge of OnsetCohort StudiesCytochrome P-450 CYP1B1DNADNA Mutational AnalysisFemaleGenotypeGlaucoma, Open-AngleGonioscopyHumansMalePedigreeCYP1B1 protein, humanCytochrome P-450 CYP1B1DNAAngle dysgenesisCYP1B1GlaucomaJuvenile glaucoma

Identifiers

PMID29168043
OpenAlexW2768512369

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.