Evidence map›Paper›PMID 30067850›Full record

ArticlePloS one2018

Molecular-genetic causes for the high frequency of phenylketonuria in the population from the North Caucasus.

Polina Gundorova, Rena A Zinchenko, Irina A Kuznetsova, Elena A Bliznetz, Anna A Stepanova, Aleksander V Polyakov

Abstract read
In one paragraph

Article in PloS one, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
–field-weighted citation impact
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

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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

17 citing papers in PubMed.

  1. An Endemic Region of Thiamine-Responsive Megaloblastic Anemia Caused by anInternational journal of molecular sciences · 2026
    Article
  2. Article
  3. [Genetic profiling and intervention strategies for phenylketonuria in Gansu, China: an analysis of 1 159 cases].Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics · 2025
    Article
  4. Current state of the treatment landscape of phenylketonuria.Orphanet journal of rare diseases · 2025
    Review
  5. Article
  6. Article
  7. Step-by-Step Double-Trouble OBAIRH and DMD Diagnosis in a One-Year-Old Boy.International journal of molecular sciences · 2023
    Article
  8. Article
  9. Review
  10. Phenylketonuria.Nature reviews. Disease primers · 2021
    Review
  11. Article
  12. Article
  13. Article
  14. The Genetic Landscape and Epidemiology of Phenylketonuria.American journal of human genetics · 2020
    Article
  15. Epidemiology of Hereditary Diseases in the Karachay-Cherkess Republic.International journal of molecular sciences · 2020
    Article
  16. Article
  17. 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

6 authors.

Polina GundorovaLaboratory of DNA-diagnostics, Federal State Budgetary Institution "Research Centre for Medical Genetics", Moscow, Russia.ORCID 0000-0001-8703-7997
Rena A ZinchenkoLaboratory of Genetic Epidemiology, Federal State Budgetary Institution "Research Centre for Medical Genetics", Moscow, Russia.ORCID 0000-0003-3586-3458
Irina A KuznetsovaLaboratory of DNA-diagnostics, Federal State Budgetary Institution "Research Centre for Medical Genetics", Moscow, Russia.
Elena A BliznetzLaboratory of DNA-diagnostics, Federal State Budgetary Institution "Research Centre for Medical Genetics", Moscow, Russia.ORCID 0000-0002-5339-5566
Anna A StepanovaLaboratory of DNA-diagnostics, Federal State Budgetary Institution "Research Centre for Medical Genetics", Moscow, Russia.
Aleksander V PolyakovLaboratory of DNA-diagnostics, Federal State Budgetary Institution "Research Centre for Medical Genetics", Moscow, Russia.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Phenylketonuria is an inherited disease caused by mutations in the phenylalanine hydroxylase gene PAH. Different PAH pathogenic variants occur in different ethnic groups with various frequencies and the incidence of the disease itself varies from country to country. In the Caucasus region of Russia, some ethnoses are geographically and culturally isolated from each other. The tradition of monoethnic marriages may cause decreased genetic variability in those populations. In the Karachay-Cherkess Republic (Russia), the highest incidence of phenylketonuria in the world has been detected (1:850 newborns) in the region and 1:332 among the titular nation Karachays. Here, we showed that this phenomenon is due to the widespread prevalence of the p.Arg261* variant. Its allele frequency among Karachay patients with PKU was 68.4% and the carrier frequency in Karachays was 1:16 healthy individuals. PAH haplotype analysis showed a unique common origin. The founder haplotype and mutation "age" were estimated by analyzing the linkage disequilibrium between p.Arg261* and extragenic short tandem repeat loci. The p.Arg261* variant occurred in the Karachays population 10.2 ± 2.7 generations ago (275 ± 73 years) and its spread occurred in parallel with the growth of the population.

Indexed as

Point MutationGene FrequencyHaplotypesHumansInfant, NewbornLinkage DisequilibriumPedigreePhenylalanine HydroxylasePhenylketonuriasPolymorphism, GeneticRussiaPhenylalanine Hydroxylase

Identifiers

PMID30067850
PMCPMC6070269

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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.