Evidence map›Paper›PMID 22234158›Full record

ArticleEuropean journal of human genetics : EJHG2012

Low prevalence of lactase persistence in Neolithic South-West Europe.

Theo S Plantinga, Santos Alonso, Neskuts Izagirre, Montserrat Hervella, Rosa Fregel, Jos W M van der Meer, Mihai G Netea, Concepcion de la Rúa

Erratum issuedOpen access · bronzeAbstract readHistorical Article
In one paragraph

Article in European journal of human genetics : EJHG, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
6.6field-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

24 citing papers in PubMed, 77 citations in OpenAlex.

  1. Article
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  4. Integrating Family-Based and Mendelian Randomization Designs.Cold Spring Harbor perspectives in medicine · 2021
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  13. Regional asynchronicity in dairy production and processing in early farming communities of the northern Mediterranean.Proceedings of the National Academy of Sciences of the United States of America · 2016
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4 · The record

Corrections and comments

  • Erratum issued
5 · Who and what money

Authors and funding

8 authors at 4 institutions in 2 countries.

Theo S PlantingaDepartment of Medicine, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands.
Santos Alonso
Neskuts Izagirre
Montserrat Hervella
Rosa Fregel
Jos W M van der Meer
Mihai G Netea
Concepcion de la Rúa
University of the Basque Country · ESRadboud University Nijmegen · NLRadboud University Medical Center · NLUniversidad de La Laguna · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The ability of humans to digest the milk component lactose after weaning requires persistent production of the lactose-converting enzyme lactase. Genetic variation in the promoter of the lactase gene (LCT) is known to be associated with lactase production and is therefore a genetic determinant for either lactase deficiency or lactase persistence during adulthood. Large differences in this genetic trait exist between populations in Africa and the Middle-East on the one hand, and European populations on the other; this is thought to be due to evolutionary pressures exerted by consumption of dairy products in Neolithic populations in Europe. In this study, we have investigated lactase persistence of 26 out of 46 individuals from Late Neolithic through analysis of ancient South-West European DNA samples, obtained from two burials in the Basque Country originating from 5000 to 4500 YBP. This investigation revealed that these populations had an average frequency of lactase persistence of 27%, much lower than in the modern Basque population, which is compatible with the concept that Neolithic and post-Neolithic evolutionary pressures by cattle domestication and consumption of dairy products led to high lactase persistence in Southern European populations. Given the heterogeneity in the frequency of the lactase persistence allele in ancient Europe, we suggest that in Southern Europe the selective advantage of lactose assimilation in adulthood most likely took place from standing population variation, after cattle domestication, at a post-Neolithic time when fresh milk consumption was already fully adopted as a consequence of a cultural influence.

Indexed as

AllelesAnimalsCattleCloning, MolecularDNA, MitochondrialEuropeGene FrequencyGenetic HeterogeneityGenetics, PopulationGenome, HumanHistory, AncientHumansLactaseLactoseLactose IntoleranceMitochondriaDNA, MitochondrialLactaseLactose

Identifiers

PMID22234158
PMCPMC3376259
OpenAlexW1967913865

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.