Evidence mapPaperPMID 38650574Full record

ArticleBrain : a journal of neurology2024

Leptin receptor reactivation restores brain function in early-life Lepr-deficient mice.

Caroline Fernandes, Leticia Forny-Germano, Mayara M Andrade, Natalia M Lyra E Silva, Angela M Ramos-Lobo, Fernanda Meireles, Fernanda Tovar-Moll, Jean Christophe Houzel, Jose Donato, Fernanda G De Felice

Open access · bronzeAbstract read
In one paragraph

Article in Brain : a journal of neurology, 2024. 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
2.7field-weighted citation impact, top 10% 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, 10 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. Severe obesity with hypo-leptinemia.Endocrine journal · 2025
    Article
  5. 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

10 authors at 4 institutions in 2 countries.

Caroline FernandesInstitute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil.
Leticia Forny-GermanoInstitute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil.
Mayara M AndradeInstitute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil.
Natalia M Lyra E SilvaCentre for Neuroscience Studies, Department of Biomedical and Molecular Sciences & Department of Psychiatry, Queen's University, Kingston, ON K7L 3N6, Canada.
Angela M Ramos-LoboDepartment of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP 05508-000, Brazil.
Fernanda MeirelesD'Or Institute for Research and Education, Rio de Janeiro, RJ 22281-100, Brazil.
Fernanda Tovar-MollD'Or Institute for Research and Education, Rio de Janeiro, RJ 22281-100, Brazil.
Jean Christophe HouzelInstitute of Biomedical Sciences, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941-590, Brazil.
Jose DonatoDepartment of Physiology and Biophysics, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP 05508-000, Brazil.
Fernanda G De FeliceInstitute of Medical Biochemistry Leopoldo de Meis, Federal University of Rio de Janeiro, Rio de Janeiro, RJ 21941-902, Brazil.ORCID 0000-0001-8358-0589
Universidade Federal do Rio de Janeiro · BRD’Or Institute for Research and Education · BRUniversidade de São Paulo · BRQueen's University · CA

Funding

Penn State Clinical and Translational Science InstituteUL1TR002014 · PENNSYLVANIA STATE UNIV HERSHEY MED CTR · 2025 to 2025
$3.8M
Canada Research Chair in Brain Resilience CRC-2023-00155Carlos Chagas Filho Research Support Foundation of the State of Rio de Janeiro 202.944/2015CIHR PJT-178123Conselho Nacional de Desenvolvimento Científico e Tecnológico 467546/2014-2National Institute for Translational Neuroscience 465346/2014-6Queen's Research Initiation GrantResearch Support Foundation of the State of São Paulo 2020/01318-8
6 · The paper itself

Abstract

Obesity is a chronic disease caused by excessive fat accumulation that impacts the body and brain health. Insufficient leptin or leptin receptor (LepR) is involved in the disease pathogenesis. Leptin is involved with several neurological processes, and it has crucial developmental roles. We have previously demonstrated that leptin deficiency in early life leads to permanent developmental problems in young adult mice, including an imbalance in energy homeostasis, alterations in melanocortin and the reproductive system and a reduction in brain mass. Given that in humans, obesity has been associated with brain atrophy and cognitive impairment, it is important to determine the long-term consequences of early-life leptin deficiency on brain structure and memory function. Here, we demonstrate that leptin-deficient (LepOb) mice exhibit altered brain volume, decreased neurogenesis and memory impairment. Similar effects were observed in animals that do not express the LepR (LepRNull). Interestingly, restoring the expression of LepR in 10-week-old mice reverses brain atrophy, in addition to neurogenesis and memory impairments in older animals. Our findings indicate that leptin deficiency impairs brain development and memory, which are reversible by restoring leptin signalling in adulthood.

Indexed as

BrainLeptinNeurogenesisReceptors, LeptinAnimalsAtrophyMaleMemory DisordersMiceMice, Inbred C57BLMice, KnockoutLeptinleptin receptor, mouseReceptors, Leptinbrain atrophyleptinmemory impairmentneurogenesisobesity

Identifiers

PMID38650574
PMCPMC11292908
OpenAlexW4395051371

What Socratic holds

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LicenceCC BY-NC
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 Socratic graph.