Evidence map›Paper›PMID 30309268›Full record

ArticleAmerican journal of respiratory and critical care medicine2019

Intranasal Leptin Relieves Sleep-disordered Breathing in Mice with Diet-induced Obesity.

Slava Berger, Huy Pho, Thomaz Fleury-Curado, Shannon Bevans-Fonti, Haris Younas, Mi-Kyung Shin, Jonathan C Jun, Frederick Anokye-Danso, Rexford S Ahima, Lynn W Enquist and 3 more

Abstract read
In one paragraph

Article in American journal of respiratory and critical care medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 6% 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

39 citing papers in PubMed, 1 synthesis or guideline pooled it, 78 citations in OpenAlex.

  1. Pooled it
  2. Leptin alleviates obesity hypoventilationbioRxiv : the preprint server for biology · 2026
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  18. Leptin-loaded Extracellular Vesicles Treat Sleep-disordered Breathing in Mice with Obesity.American journal of respiratory cell and molecular biology · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

13 authors at 4 institutions in 1 country.

Slava Berger1 Division of Pulmonary and Critical Care Medicine and.ORCID 0000-0001-6188-0118
Huy Pho1 Division of Pulmonary and Critical Care Medicine and.
Thomaz Fleury-Curado1 Division of Pulmonary and Critical Care Medicine and.
Shannon Bevans-Fonti1 Division of Pulmonary and Critical Care Medicine and.
Haris Younas1 Division of Pulmonary and Critical Care Medicine and.
Mi-Kyung Shin1 Division of Pulmonary and Critical Care Medicine and.
Jonathan C Jun1 Division of Pulmonary and Critical Care Medicine and.
Frederick Anokye-Danso2 Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland.
Rexford S Ahima2 Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland.
Lynn W Enquist3 Department of Molecular Biology and.
David Mendelowitz5 Department of Pharmacology and Physiology, George Washington University, Washington, DC.
Alan R Schwartz1 Division of Pulmonary and Critical Care Medicine and.
Vsevolod Y Polotsky1 Division of Pulmonary and Critical Care Medicine and.
Pulmonary and Critical Care Associates · USJohns Hopkins University · USGeorge Washington University · USPrinceton University · US

Funding

Melanocortin 4 signaling in the carotid body in obesityR01HL133100 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI Vsevolod Y Polotsky, Wan-yee Tang · 2016 to 2026
$7.1M
Treatment of Sleep Apnea by Targeting Leptin SignalingR01HL128970 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI MENDELOWITZ, DAVID, POLOTSKY, VSEVOLOD Y · 2015 to 2023
$5.4M
The role of obesity in biological responses to particulate matter in miceP50ES018176 · NIEHS · JOHNS HOPKINS UNIVERSITY · PI HANSEL, NADIA N · 2015 to 2019
$4.8M
Chemogenetic approach to treat Obstructive Sleep ApneaR01HL138932 · NHLBI · JOHNS HOPKINS UNIVERSITY · PI POLOTSKY, VSEVOLOD Y · 2017 to 2020
$2.4M
NHLBI NIH HHS R01 HL128970NHLBI NIH HHS R01 HL133100NHLBI NIH HHS R01 HL138932NIEHS NIH HHS P50 ES018176
6 · The paper itself

Abstract

rationaleLeptin treats upper airway obstruction and alveolar hypoventilation in leptin-deficient ob/ob mice. However, obese humans and mice with diet-induced obesity (DIO) are resistant to leptin because of poor permeability of the blood-brain barrier. We propose that intranasal leptin will bypass leptin resistance and treat sleep-disordered breathing in obesity.

objectivesTo assess if intranasal leptin can treat obesity hypoventilation and upper airway obstruction during sleep in mice with DIO.

methodsMale C57BL/6J mice were fed with a high-fat diet for 16 weeks. A single dose of leptin (0.4 mg/kg) or BSA (vehicle) were administered intranasally or intraperitoneally, followed by either sleep studies (n = 10) or energy expenditure measurements (n = 10). A subset of mice was treated with leptin daily for 14 days for metabolic outcomes (n = 20). In a separate experiment, retrograde viral tracers were used to examine connections between leptin receptors and respiratory motoneurons. MEASUREMENTS AND MAIN

resultsAcute intranasal, but not intraperitoneal, leptin decreased the number of oxygen desaturation events in REM sleep, and increased ventilation in non-REM and REM sleep, independently of metabolic effects. Chronic intranasal leptin decreased food intake and body weight, whereas intraperitoneal leptin had no effect. Intranasal leptin induced signal transducer and activator of transcription 3 phosphorylation in hypothalamic and medullary centers, whereas intraperitoneal leptin had no effect. Leptin receptor-positive cells were synaptically connected to respiratory motoneurons.

conclusionsIn mice with DIO, intranasal leptin bypassed leptin resistance and significantly attenuated sleep-disordered breathing independently of body weight.

Indexed as

AnimalsHumansLeptinMiceMice, Inbred C57BLModels, AnimalNasal AbsorptionObesitySleepSleep Apnea SyndromesLeptinhypoventilationleptinrespirationsleep apnea syndromes

Identifiers

PMID30309268
PMCPMC6423095
OpenAlexW2898034106

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.