Evidence map›Paper›PMID 15642127›Full record

SynthesisBMC nephrology2005

Polymorphisms of the insertion / deletion ACE and M235T AGT genes and hypertension: surprising new findings and meta-analysis of data.

Adrian Mondry, Marie Loh, Pengbo Liu, Ai-Ling Zhu, Mato Nagel

Open access · goldAbstract readMeta-Analysis
In one paragraph

Synthesis in BMC nephrology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
6.5field-weighted citation impact, top 3% 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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 152 citations in OpenAlex.

  1. Angiotensin II type 1 receptor polymorphisms and susceptibility to hypertension: a HuGE review.Genetics in medicine : official journal of the American College of Medical Genetics · 2008
    Pooled it
  2. Trial
  3. Review
  4. Different Polymorphisms of the Renin-Angiotensin-Aldosterone System Genes are Associated with Poorer Blood Pressure Control in Hypertensive Older Adults.High blood pressure & cardiovascular prevention : the official journal of the Italian Society of Hypertension · 2025
    Article
  5. Review
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  9. Association BetweenFrontiers in cardiovascular medicine · 2021
    Article
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  14. Ethnic Variation in the Association of Hypertension With Type 2 Diabetes.Journal of clinical hypertension (Greenwich, Conn.) · 2017
    Article
  15. Article
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  18. Association of Angiotensin Converting Enzyme I/D and α-actinin-3 R577X Genotypes with Growth Factors and Physical Fitness in Korean Children.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2015
    Article
  19. Gene polymorphisms of adducin GLY460TRP, ACE I/D, AND AGT M235T in pediatric hypertension patients.Medical science monitor : international medical journal of experimental and clinical research · 2014
    Article
  20. Genetics of hypertension: discoveries from the bench to human populations.American journal of physiology. Renal physiology · 2014
    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 1 institution in 1 country.

Adrian MondryBioinformatics Institute, Singapore. mondry@hotmail.com
Marie Loh
Pengbo Liu
Ai-Ling Zhu
Mato Nagel
Bioinformatics Institute · SG

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEssential hypertension is a common, polygenic, complex disorder resulting from interaction of several genes with each other and with environmental factors such as obesity, dietary salt intake, and alcohol consumption. Since the underlying genetic pathways remain elusive, currently most studies focus on the genes coding for proteins that regulate blood pressure as their physiological role makes them prime suspects. The present study examines how polymorphisms of the insertion/deletion (I/D) ACE and M235T AGT genes account for presence and severity of hypertension, and embeds the data in a meta-analysis of relevant studies.

methodsThe I/D polymorphisms of the ACE and M235T polymorphisms of the AGT genes were determined by RFLP (restriction fragment length polymorphism) and restriction analysis in 638 hypertensive patients and 720 normotensive local blood donors in Weisswasser, Germany. Severity of hypertension was estimated by the number of antihypertensive drugs used.

resultsNo difference was observed in the allele frequencies and genotype distributions of ACE gene polymorphisms between the two groups, whereas AGT TT homozygotes were more frequent in controls (4.6% vs. 2.7%, P = .08). This became significant (p = 0.035) in women only. AGT TT genotype was associated with a 48% decrease in the risk of having hypertension (odds ratio: 0.52; 95% CI, 0.28 to 0.96), and this risk decreased more significantly in women (odds ratio: 0.28; 95% CI, 0.1 to 0.78). The meta-analysis showed a pooled odds ratio for hypertension of 1.21 (TT vs. MM, 95% CI: 1.11 to 1.32) in Caucasians. No correlation was found between severity of hypertension and a specific genotype.

conclusionThe ACE I/D polymorphism does not contribute to the presence and severity of essential hypertension, while the AGT M235T TT genotype confers a significantly decreased risk for the development of hypertension in the population studied here. This contrasts to the findings of meta-analyses, whereby the T allele is associated with increased risk for hypertension.

Indexed as

DNA Transposable ElementsGene DeletionPolymorphism, GeneticAdultAgedAngiotensinogenCross-Sectional StudiesFemaleGene FrequencyGenetic Predisposition to DiseaseGenotypeHomozygoteHumansHypertensionMaleMethionineAngiotensinogenDNA Transposable ElementsMethioninePeptidyl-Dipeptidase AThreonine

Identifiers

PMID15642127
PMCPMC546009
OpenAlexW2053889371

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.