Evidence map›Paper›PMID 29663284›Full record

ArticleMolecular neurobiology2018

Fluoxetine Modulates the Activity of Hypothalamic POMC Neurons via mTOR Signaling.

Ilaria Barone, Riccardo Melani, Marco Mainardi, Gaia Scabia, Manuela Scali, Alessia Dattilo, Giovanni Ceccarini, Paolo Vitti, Ferruccio Santini, Lamberto Maffei and 2 more

Abstract read
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In one paragraph

Article in Molecular neurobiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
1.0field-weighted citation impact, top 27% 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, 19 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Signaling pathways in obesity: mechanisms and therapeutic interventions.Signal transduction and targeted therapy · 2022
    Review
  5. Article
  6. Review
  7. Article
  8. The NGFThe Journal of neuroscience : the official journal of the Society for Neuroscience · 2019
    Article
  9. Cortical Seizures inInternational journal of molecular sciences · 2019
    Article
  10. Review
  11. Article
  12. 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

12 authors at 6 institutions in 1 country.

Ilaria BaroneDulbecco Telethon Institute, Rome, Italy.
Riccardo MelaniInstitute of Neuroscience, National Research Council, Via Moruzzi 1, 56124, Pisa, Italy.
Marco MainardiInstitute of Neuroscience, National Research Council, Via Moruzzi 1, 56124, Pisa, Italy.
Gaia ScabiaDepartment of Clinical and Experimental Medicine, Obesity Center at the Endocrinology Unit, Via Paradisa 2, 56126, Pisa, Italy.
Manuela ScaliInstitute of Neuroscience, National Research Council, Via Moruzzi 1, 56124, Pisa, Italy.
Alessia DattiloDepartment of Clinical and Experimental Medicine, Obesity Center at the Endocrinology Unit, Via Paradisa 2, 56126, Pisa, Italy.
Giovanni CeccariniDepartment of Clinical and Experimental Medicine, Obesity Center at the Endocrinology Unit, Via Paradisa 2, 56126, Pisa, Italy.
Paolo VittiDepartment of Clinical and Experimental Medicine, Obesity Center at the Endocrinology Unit, Via Paradisa 2, 56126, Pisa, Italy.
Ferruccio SantiniDepartment of Clinical and Experimental Medicine, Obesity Center at the Endocrinology Unit, Via Paradisa 2, 56126, Pisa, Italy.
Lamberto MaffeiInstitute of Neuroscience, National Research Council, Via Moruzzi 1, 56124, Pisa, Italy.
Tommaso PizzorussoInstitute of Neuroscience, National Research Council, Via Moruzzi 1, 56124, Pisa, Italy. tommaso@in.cnr.it.
Margherita MaffeiDulbecco Telethon Institute, Rome, Italy. m.maffei@ifc.cnr.it.ORCID http://orcid.org/0000-0002-8534-2450
National Research Council · ITIstituto di Fisiologia Clinica · ITDulbecco Telethon Institute · ITIstituto di Scienza e Tecnologie dell'Informazione "Alessandro Faedo" · ITScuola Normale Superiore · ITUniversity of Pisa · IT

Funding

Fondazione Telethon TDMM00707TUMinistero dell'Istruzione, dell'Università e della Ricerca 2015 TC3Y9B
6 · The paper itself

Abstract

Hypothalamic proopiomelanocortin (POMC) neurons are important players in the regulation of energy homeostasis; we previously demonstrated that environmental stimulation excites arcuate nucleus circuits to undergo plastic remodeling, leading to altered ratio between excitatory and inhibitory synaptic contacts on these neurons. The widely used selective serotonin reuptake inhibitor fluoxetine (FLX) is known to affect body weight. On the other hand, FLX administration mimics the effects of environmental stimulation on synaptic plasticity in the hippocampus and cortex. The mammalian target of rapamycin (mTOR) pathway is instrumental in these phenomena. Thus, we aimed at investigating whether and how FLX affects POMC neurons activity and hypothalamic mTOR function. Adult mice expressing green fluorescent protein (GFP) under the POMC promoter were treated with FLX for 3 weeks resulting in diminished body weight. Patch clamp recordings performed on POMC neurons indicate that FLX increases their firing rate and the excitatory AMPA-mediated transmission, and reduces the inhibitory GABAergic currents at presynaptic level. Immunofluorescence studies indicate that FLX increases the ratio between excitatory and inhibitory synaptic contacts on POMC neurons. These changes are associated with an increased activity of the hypothalamic mTOR pathway. Use of the mTOR inhibitor rapamycin blunts the effects of FLX on body weight and on functional and structural plasticity of POMC neurons. Our findings indicate that FLX is able to remodel POMC neurons, and that this may be partly mediated by the mTOR signaling pathway.

Indexed as

Signal TransductionAction PotentialsAnimalsArcuate Nucleus of HypothalamusEnergy MetabolismFluoxetineHypothalamusLeptinMice, TransgenicNeuronsPro-OpiomelanocortinSirolimusFluoxetineLeptinPro-OpiomelanocortinSirolimusFluoxetineHypothalamusmTOR pathwayPatch clampPlasticityPOMC neurons

Identifiers

PMID29663284
OpenAlexW2799797051

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.