Evidence map›Paper›PMID 33536239›Full record

ArticleLife science alliance2021

Lipocalin 13 enhances insulin secretion but is dispensable for systemic metabolic control.

Lea Bühler, Adriano Maida, Elena Sophie Vogl, Anastasia Georgiadi, Andrea Takacs, Oliver Kluth, Annette Schürmann, Annette Feuchtinger, Christine von Toerne, Foivos-Filippos Tsokanos and 6 more

Open access · goldAbstract read
In one paragraph

Article in Life science alliance, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
0.7field-weighted citation impact, top 29% 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

5 citing papers in PubMed, 8 citations in OpenAlex.

  1. Lipocalin 13 Mitigates Metabolic Dysfunction-Associated Steatotic Liver Disease Through Inhibiting the ADRB2/ERK Signalling Pathway.Liver international : official journal of the International Association for the Study of the Liver · 2026
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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

16 authors at 4 institutions in 1 country.

Lea BühlerInstitute for Diabetes and Cancer (IDC), Helmholtz Centre Munich, German Research Center for Environmental Health, Neuherberg, Germany.
Adriano MaidaInstitute for Diabetes and Cancer (IDC), Helmholtz Centre Munich, German Research Center for Environmental Health, Neuherberg, Germany.
Elena Sophie VoglInstitute for Diabetes and Cancer (IDC), Helmholtz Centre Munich, German Research Center for Environmental Health, Neuherberg, Germany.
Anastasia GeorgiadiInstitute for Diabetes and Cancer (IDC), Helmholtz Centre Munich, German Research Center for Environmental Health, Neuherberg, Germany.
Andrea TakacsInstitute for Diabetes and Cancer (IDC), Helmholtz Centre Munich, German Research Center for Environmental Health, Neuherberg, Germany.
Oliver KluthGerman Center for Diabetes Research (DZD), Neuherberg, Germany.
Annette SchürmannGerman Center for Diabetes Research (DZD), Neuherberg, Germany.
Annette FeuchtingerResearch Unit Analytical Pathology, Helmholtz Centre Munich, German Research Center for Environmental Health, Neuherberg, Germany.
Christine von ToerneResearch Unit Protein Science, Helmholtz Centre Munich, German Research Center for Environmental Health, Neuherberg, Germany.
Foivos-Filippos TsokanosInstitute for Diabetes and Cancer (IDC), Helmholtz Centre Munich, German Research Center for Environmental Health, Neuherberg, Germany.
Katarina KlepacInstitute for Diabetes and Cancer (IDC), Helmholtz Centre Munich, German Research Center for Environmental Health, Neuherberg, Germany.
Gretchen WolffInstitute for Diabetes and Cancer (IDC), Helmholtz Centre Munich, German Research Center for Environmental Health, Neuherberg, Germany.
Minako SakuraiInstitute for Diabetes and Cancer (IDC), Helmholtz Centre Munich, German Research Center for Environmental Health, Neuherberg, Germany.
Bilgen Ekim ÜstünelInstitute for Diabetes and Cancer (IDC), Helmholtz Centre Munich, German Research Center for Environmental Health, Neuherberg, Germany.
Peter NawrothJoint Heidelberg-IDC Transnational Diabetes Program, Inner Medicine I, Heidelberg University Hospital, Heidelberg, Germany.ORCID 0000-0002-6134-7804
Stephan HerzigInstitute for Diabetes and Cancer (IDC), Helmholtz Centre Munich, German Research Center for Environmental Health, Neuherberg, Germany stephan.herzig@helmholtz-muenchen.de.ORCID 0000-0003-3950-3652
Heidelberg University · DEHelmholtz Zentrum München · DEDeutsches Diabetes-Zentrum e.V. · DEUniversity of Potsdam · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Members of the lipocalin protein family serve as biomarkers for kidney disease and acute phase inflammatory reactions, and are under preclinical development for the diagnosis and therapy of allergies. However, none of the lipocalin family members has made the step into clinical development, mostly due to their complex biological activity and the lack of in-depth mechanistic knowledge. Here, we show that the hepatokine lipocalin 13 (LCN13) triggers glucose-dependent insulin secretion and cell proliferation of primary mouse islets. However, inhibition of endogenous LCN13 expression in lean mice did not alter glucose and lipid homeostasis. Enhanced hepatic secretion of LCN13 in either diet-induced or genetic obesity led to no discernible impact on systemic glucose and lipid metabolism, neither in preventive nor therapeutic setting. Of note, loss or forced LCN13 hepatic secretion did not trigger any compensatory regulation of related lipocalin family members. Together, these data are in stark contrast to the suggested gluco-regulatory and therapeutic role of LCN13 in obesity, and imply complex regulatory steps in LCN13 biology at the organismic level mitigating its principal insulinotropic effects.

Indexed as

Energy MetabolismInsulin SecretionAnimalsBiomarkersFluorescent Antibody TechniqueGene ExpressionGene Knockdown TechniquesGlucoseIslets of LangerhansLipid MetabolismLipocalinsLiverMaleMiceObesityBiomarkersGlucoselipocalin-13 protein, mouseLipocalins

Identifiers

PMID33536239
PMCPMC7898469
OpenAlexW3127204623

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.