Evidence map›Paper›PMID 33832461›Full record

ArticleBMC ophthalmology2021

Association of TGFB -509C>T promoter polymorphism with primary angle closure glaucoma in a North Indian Punjabi cohort.

Nanamika Thakur, Rajeev Kumar Pandey, Rashim Mannan, Archna Pruthi, Sanjana Mehrotra

Open access · goldAbstract read
In one paragraph

Article in BMC ophthalmology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.2field-weighted citation impact, top 54% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. Association of the TGF-beta1 polymorphism with primary open-angle glaucoma: a case-control study.Medical hypothesis, discovery & innovation ophthalmology journal · 2026
    Article
  2. 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

5 authors at 2 institutions in 1 country.

Nanamika ThakurDepartment of Human Genetics, Guru Nanak Dev University, Amritsar, Punjab, India.
Rajeev Kumar PandeyThermo Fisher Scientific, Bengaluru, Karnataka, India.
Rashim MannanAll India Institute of Medical Sciences, New Delhi, India.
Archna PruthiAll India Institute of Medical Sciences, New Delhi, India.
Sanjana MehrotraDepartment of Human Genetics, Guru Nanak Dev University, Amritsar, Punjab, India. sanjana.bhu@gmail.com.
All India Institute of Medical Sciences · INGuru Nanak Dev University · IN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTransforming growth factor beta (TGFB) is an important candidate gene implicated in glaucoma pathogenesis because it affects retinal ganglionic cell survival. The present study assessed the genetic association of -509C > T variant in the TGFB promoter region with primary open angle glaucoma (POAG) and primary angle closure glaucoma (PACG) in a North Indian Punjabi population.

methodA total of 867 subjects (307 POAG, 133 PACG cases and 427 controls) were recruited from the targeted population. Genotyping was done by PCR-RFLP method and the data was analyzed using PLINK software (v1.07). Logistic regression under different genetic models was applied and genotype phenotype correlation was assessed by one-way ANOVA.

resultA statistically significant difference in the frequency of heterozygotes among PACG cases (53.16%) and controls (30.07%) (p = 0.0002) was observed. Genetic model analysis revealed that mutant "TT" genotype conferred 2-fold risk towards PACG development under recessive model (p = 0.0019) while dominant model and co-dominant model provided 0.62 and 0.37 fold protection against PACG (p = 0.025 and p = 0.0001, respectively). Data segregation based on sex revealed a strong protective effect of heterozygous 'CT' genotype against progression of PACG among females (p = 0.002, OR = 0.37, 95% CI = 0.19-0.70), but conferred 2.14-fold risk among female POAG subjects (p = 0.013).

conclusionThe study revealed a strong genetic association of -509C > T variant in TGFB with PACG in females. There is a need to replicate the results in a larger PACG cohort in other populations and further assess the contribution of sex specific factors in modifying genetic susceptibility to PACG.

Indexed as

Case-Control StudiesFemaleGlaucoma, Angle-ClosureHumansMalePolymorphism, Single NucleotidePromoter Regions, GeneticTransforming Growth Factor beta1TGFB1 protein, humanTransforming Growth Factor beta1Case-control studyGenetic association studyNeurodegenerationPACGPolymorphismPrimary glaucomaTGFB -509C > T

Identifiers

PMID33832461
PMCPMC8028242
OpenAlexW3150093342

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.