Evidence map›Paper›PMID 20332346›Full record

ArticleDiabetes2010

Association between CNDP1 genotype and diabetic nephropathy is sex specific.

Antien L Mooyaart, Ana Zutinic, Stephan J L Bakker, Diana C Grootendorst, Nanne Kleefstra, Irene G M van Valkengoed, Stefan Böhringer, Henk J G Bilo, Friedo W Dekker, Jan Anthonie Bruijn and 4 more

Open access · bronzeAbstract read
In one paragraph

Article in Diabetes, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

23 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
  2. CNDP1 (CTG)Scientific reports · 2026
    Article
  3. Review
  4. Histidine-Containing Dipeptides in Obesity and Cardiometabolic Health: A Systematic Scoping Review.Obesity reviews : an official journal of the International Association for the Study of Obesity · 2025
    Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Genotype Distribution ofJournal of diabetes research · 2020
    Article
  11. Review
  12. Review
  13. Diabetic Microvascular Disease: An Endocrine Society Scientific Statement.The Journal of clinical endocrinology and metabolism · 2017
    Review
  14. Allosteric inhibition of carnosinase (CN1) by inducing a conformational shift.Journal of enzyme inhibition and medicinal chemistry · 2017
    Article
  15. TheJournal of diabetes research · 2017
    Article
  16. Association of CTG repeat polymorphism in carnosine dipeptidase 1 (The Indian journal of medical research · 2016
    Article
  17. Article
  18. Article
  19. Article
  20. Carnosinases, their substrates and diseases.Molecules (Basel, Switzerland) · 2014
    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

14 authors at 5 institutions in 2 countries.

Antien L MooyaartPathology, Leiden University Medical Center, Leiden, The Netherlands. a.l.mooyaart@lumc.nl
Ana Zutinic
Stephan J L Bakker
Diana C Grootendorst
Nanne Kleefstra
Irene G M van Valkengoed
Stefan Böhringer
Henk J G Bilo
Friedo W Dekker
Jan Anthonie Bruijn
Gerjan Navis
Bart Janssen
Hans J Baelde
Emile De Heer
Leiden University Medical Center · NLIsala · NLUniversity Medical Center Groningen · NLAcademic Medical Center · NLServiceXS (Netherlands) · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe 5-5 homozygous CNDP1 (carnosinase) genotype is associated with a reduced risk of diabetic nephropathy. We investigated whether this association is sex specific and independent of susceptibility for type 2 diabetes. RESEARCH DESIGN AND

methodsThree separate groups of 114, 90, and 66 patients with type 2 diabetes and diabetic nephropathy were included in this study and compared with 93 patients with type 2 diabetes for >15 years without diabetic nephropathy and 472 population control subjects. The diabetes control group was used to determine an association in the three patient groups separately, and the population control group was used to estimate the genotype risk [odds ratio (CI)] for the population in a pooled analysis. The population control subjects were also compared with 562 patients with type 2 diabetes without diabetic nephropathy to determine whether the association was independent of type 2 diabetes. The CNDP1 genotype was determined by fragment analysis after PCR amplification.

resultsThe frequency of the 5-5 homozygous genotype was 28, 36, and 41% in the three diabetic nephropathy patient groups and 43 and 42% in the diabetic and population control subjects, respectively. The 5-5 homozygous genotype occurred significantly less frequently in women in all three patient groups compared with diabetic control subjects. The genotype risk for the population was estimated to be 0.5 (0.30-0.68) in women and 1.2 (0.77-1.69) in men. The 562 patients with type 2 diabetes without diabetic nephropathy did not differ from the general population (P = 0.23).

conclusionsThis study suggests that the association between the CNDP1 gene and diabetic nephropathy is sex specific and independent of susceptibility for type 2 diabetes.

Indexed as

AgedAge of OnsetDiabetes Mellitus, Type 2Diabetic NephropathiesDipeptidasesFemaleGene FrequencyGenetic Predisposition to DiseaseGenotypeHomozygoteHumansLeucineMaleMiddle AgedReference ValuesRepetitive Sequences, Amino AcidCNDP1 protein, humanDipeptidasesLeucine

Identifiers

PMID20332346
PMCPMC2874718
OpenAlexW2099635791

What OpenQuestion holds

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LicenceCC BY-NC-ND
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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.