Evidence map›Paper›PMID 24633557›Full record

ArticleNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2014

Intranasal delivery of a peptide with antidepressant-like effect.

Virginia Brown, Fang Liu

Abstract read
In one paragraph

Article in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
–field-weighted citation impact
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

18 citing papers in PubMed.

  1. Review
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  3. G Protein-Coupled Receptor Dimerization-What Next?International journal of molecular sciences · 2024
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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

2 authors.

Virginia BrownDepartment of Neuroscience, Centre for Addiction and Mental Health, Toronto, ON, Canada.
Fang Liu1] Department of Neuroscience, Centre for Addiction and Mental Health, Toronto, ON, Canada [2] Department of Psychiatry, University of Toronto, Toronto, ON, Canada.

Funding

Canadian Institutes of Health Research
6 · The paper itself

Abstract

A critical issue in drug development is developing effective, noninvasive delivery routes to the central nervous system (CNS). Major depressive disorder (MDD) is an illness associated with significant morbidity. Even with multiple antidepressant trials, 10-15% of patients continue to experience persistent depressive symptoms. We previously developed an interfering peptide that has antidepressant-like effects in rats when injected directly into the brain. To be clinically viable, it must demonstrate efficacy via a noninvasive administration route. We report here that the interfering peptide designed to disrupt the interaction between the D1 and D2 dopamine receptors can be delivered to relevant brain areas using the Pressurized Olfactory Device (POD), a novel intranasal delivery system developed by Impel NeuroPharma. We validate this delivery method by demonstrating that, at doses ⩾1.67 nmol/g, the D1-D2 interfering peptide has a significant antidepressant-like effect comparable to that of imipramine in the forced swimming test (FST), a common test for antidepressant efficacy. The antidepressant-like effect of the interfering peptide can be detected for 2 h after intranasal administration. Furthermore, we show that the interfering peptide disrupts the D1-D2 interaction and it can be detected in the prefrontal cortex after intranasal administration. This study provides strong preclinical support for intranasal administration of the D1-D2 interfering peptide as a new treatment option for patients suffering from MDD.

Indexed as

Administration, IntranasalAnimalsAntidepressive AgentsDepressive DisorderDisease Models, AnimalDose-Response Relationship, DrugExploratory BehaviorMaleMotor ActivityNeuropsychological TestsPeptidesPrefrontal CortexRats, Sprague-DawleyReceptors, Dopamine D1Receptors, Dopamine D2Stress, PsychologicalAntidepressive AgentsPeptidesReceptors, Dopamine D1Receptors, Dopamine D2

Identifiers

PMID24633557
PMCPMC4104330

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.