Evidence map›Paper›PMID 34002033›Full record

ArticleInternational journal of obesity (2005)2021

Serum IGF1 and linear growth in children with congenital leptin deficiency before and after leptin substitution.

Marianna Beghini, Stephanie Brandt, Ingrid Körber, Katja Kohlsdorf, Heike Vollbach, Belinda Lennerz, Christian Denzer, Shlomit Shalitin, Ferruccio Santini, Werner F Blum and 2 more

Open access · hybridAbstract read
In one paragraph

Article in International journal of obesity (2005), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.3field-weighted citation impact, top 22% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 18 citations in OpenAlex.

  1. Classification of Congenital Leptin Deficiency.The Journal of clinical endocrinology and metabolism · 2024
    Pooled it
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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

12 authors at 7 institutions in 5 countries.

Marianna BeghiniDivision of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Centre Ulm, Ulm, Germany.ORCID http://orcid.org/0000-0001-6161-4004
Stephanie BrandtDivision of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Centre Ulm, Ulm, Germany.
Ingrid KörberDivision of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Centre Ulm, Ulm, Germany.
Katja KohlsdorfDivision of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Centre Ulm, Ulm, Germany.ORCID http://orcid.org/0000-0001-5640-4491
Heike VollbachPediatric Endocrinology and Diabetology Division, Children's Hospital, University of Bonn, Bonn, Germany.
Belinda LennerzDivision of Pediatric Endocrinology, Department of Pediatrics, Boston Children's Hospital, Boston, MA, USA.
Christian DenzerDivision of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Centre Ulm, Ulm, Germany.
Shlomit ShalitinThe Jesse and Sara Lea Shafer Institute of Endocrinology and Diabetes, Schneider Children's Medical Center of Israel, Petach Tikva, Israel.ORCID http://orcid.org/0000-0002-2729-9175
Ferruccio SantiniObesity and Lipodystrophy Center at the Endocrinology Unit, University Hospital of Pisa, Pisa, Italy.
Werner F BlumCenter of Child and Adolescent Medicine, Justus-Liebig University, Giessen, Germany.
Julia von SchnurbeinDivision of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Centre Ulm, Ulm, Germany.
Martin WabitschDivision of Pediatric Endocrinology and Diabetes, Department of Pediatrics and Adolescent Medicine, University Medical Centre Ulm, Ulm, Germany. martin.wabitsch@uniklinik-ulm.de.
University Hospital Ulm · DEAzienda Ospedaliera Universitaria Pisana · ITBoston Children's Hospital · USJustus-Liebig-Universität Gießen · DETel Aviv University · ILUniversität Ulm · DEUniversity of Bonn · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundEvidence from in vitro and rodent studies suggests that leptin, a key signal of long-term energy reserves, promotes IGF1 synthesis and linear growth. This effect of leptin has not been fully investigated in humans. The aim of our study was to investigate the effect of leptin substitution on growth factors and linear growth in children with congenital leptin deficiency (CLD).

methodsIn this cohort study we included eight pediatric patients (six males), age 0.9-14.8 years, who were diagnosed with CLD and received leptin substitution at our University Medical Center. We calculated standard deviation scores (SDS) for serum levels of IGF1 and IGFBP3, IGF1/IGFBP3 molar ratio, and height at baseline (T0) and 12 months (T12) after the initiation of substitution with metreleptin.

resultsAll patients had severe obesity (BMI-SDS mean ± SD: 4.14 ± 1.51) at T0 and significant BMI-SDS reduction to 2.47 ± 1.05 at T12. At T0, all patients were taller than the mid-parental median, yet had low IGF1 and IGF1/IGFBP3 molar ratios (IGF1-SDS[Formula: see text]

conclusionsThese results in CLD patients are contrary to observations in children with idiopathic obesity who typically have above-mean IGF1 levels that decrease with weight loss, and therefore suggest that leptin increases IGF1 levels and promotes linear growth.

Indexed as

Deficiency DiseasesLeptinAdolescentChildChild, PreschoolCohort StudiesFemaleHumansInfantInsulin-Like Growth Factor IMaleIGF1 protein, humanInsulin-Like Growth Factor ILeptin

Identifiers

PMID34002033
PMCPMC8236407
OpenAlexW3160340391

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.