Evidence map›Paper›PMID 27016581›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2016

Oxytocin neuron activation prevents hypertension that occurs with chronic intermittent hypoxia/hypercapnia in rats.

Heather Jameson, Ryan Bateman, Peter Byrne, Jhansi Dyavanapalli, Xin Wang, Vivek Jain, David Mendelowitz

Open access · bronzeAbstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 47 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
47citing papers in PubMed, 1 pooled it
3.7field-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

47 citing papers in PubMed, 1 synthesis or guideline pooled it, 69 citations in OpenAlex.

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  16. Activation of oxytocinergic neurons enhances torpor in mice.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 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

7 authors at 1 institution in 1 country.

Heather JamesonDepartment of Pharmacology and Physiology, The George Washington University, Washington, DC; Institute for Biomedical Sciences, The George Washington University, Washington, DC;
Ryan BatemanDepartment of Pharmacology and Physiology, The George Washington University, Washington, DC;
Peter ByrneDepartment of Pharmacology and Physiology, The George Washington University, Washington, DC;
Jhansi DyavanapalliDepartment of Pharmacology and Physiology, The George Washington University, Washington, DC;
Xin WangDepartment of Pharmacology and Physiology, The George Washington University, Washington, DC; Institute for Biomedical Sciences, The George Washington University, Washington, DC;
Vivek JainDepartment of Medicine, The George Washington University, Washington, DC.
David MendelowitzDepartment of Pharmacology and Physiology, The George Washington University, Washington, DC; Institute for Biomedical Sciences, The George Washington University, Washington, DC; dmendel@gwu.edu.
George Washington University · US

Funding

Nicotine Modulation of Parasympathetic Cardiac NeuronsR01HL072006 · NHLBI · GEORGE WASHINGTON UNIVERSITY · PI MENDELOWITZ, DAVID · 2003 to 2017
$5.4M
NEUROPHYSIOLOGY OF PARASYMPATHETIC CARDIAC NEURONSR01HL049965 · NHLBI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI MENDELOWITZ, DAVID · 1998 to 2014
$4.6M
MECHANISM OF CARDIORESPIRATORY RHYTHM IN NEONATESR01HL059895 · NHLBI · UNIVERSITY OF TENNESSEE HEALTH SCI CTR · PI MENDELOWITZ, DAVID · 1998 to 2013
$4.1M
NHLBI NIH HHS R01 HL049965NHLBI NIH HHS R01 HL059895NHLBI NIH HHS R01 HL072006
6 · The paper itself

Abstract

Hypertension is a common outcome associated with obstructive sleep apnea (OSA), a prevalent yet poorly treated cardiovascular disease. Recent studies showed oxytocin (OXT), released from hypothalamic paraventricular nucleus (PVN) neurons, activates cardiac vagal neurons in the dorsal motor nucleus of the vagus (DMNX) and may blunt cardiovascular responses to stress. This study tests whether the release of OXT from PVN fibers in the DMNX is diminished with chronic intermittent hypoxia-hypercapnia (CIH/H) exposure, an animal model of OSA, and whether activation of PVN OXT neurons restores OXT release in the DMNX and prevents the hypertension resulting from CIH/H. To assess OXT release from PVN fibers, Chinese hamster ovarian (CHO) cells were engineered to be highly sensitive to OXT by stable expression of the human recombinant OXT receptor and the calcium indicator R-GECO1. PVN fibers in the DMNX were selectively photoactivated in vitro by expression of channelrhodopsin. The release of OXT onto CHO cells in the DMNX was blunted in rats exposed to 21 days of CIH/H. Chronic activation of PVN OXT neurons in vivo, using designer receptors exclusively activated by designer drugs, restored the release of OXT onto CHO cells in the DMNX. Chronic PVN OXT neuron activation in vivo also prevented the hypertension that occurred in conscious unrestrained telemetry-equipped sham rats exposed to 3 wk of CIH/H. These results demonstrate that chronic activation of OXT neurons restores the release of OXT from PVN fibers in the DMNX and prevents the hypertension that occurs with 3 wk of CIH/H exposure.

Indexed as

Blood PressureAnimalsBiosensing TechniquesChannelrhodopsinsCHO CellsChronic DiseaseCricetulusDisease Models, AnimalHypercapniaHypertensionHypoxiaMaleNeuronsOptogeneticsOxytocinParaventricular Hypothalamic NucleusChannelrhodopsinsOXTR protein, humanOxytocinReceptors, Oxytocinhypoxiaoxytocinparaventricular nucleus of hypothalamus

Identifiers

PMID27016581
PMCPMC4935509
OpenAlexW2303811686

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.