Evidence map›Paper›PMID 32667834›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2020

Chronically elevated norepinephrine concentrations lower glucose uptake in fetal sheep.

Melissa A Davis, Leticia E Camacho, Miranda J Anderson, Nathan R Steffens, Alexander L Pendleton, Amy C Kelly, Sean W Limesand

Open access · bronzeAbstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
4.6field-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

17 citing papers in PubMed, 20 citations in OpenAlex.

  1. Article
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  3. Fetal nutrient flux and oxidative metabolism during hypoxia: adaptive responses to defend fetal growth.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
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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.

Melissa A DavisSchool of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, Arizona.
Leticia E CamachoSchool of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, Arizona.
Miranda J AndersonSchool of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, Arizona.
Nathan R SteffensSchool of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, Arizona.
Alexander L PendletonSchool of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, Arizona.ORCID 0000-0003-2290-9074
Amy C KellySchool of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, Arizona.
Sean W LimesandSchool of Animal and Comparative Biomedical Sciences, University of Arizona, Tucson, Arizona.ORCID 0000-0002-5851-0439
University of Arizona · US

Funding

PHYSIOLOGYT32HL007249 · NHLBI · UNIVERSITY OF ARIZONA · PI Brett A Colson, JOHN P KONHILAS · 1985 to 2026
$12.5M
Prevention of Placental Insufficiency Improves Beta-Cells FunctionR01DK084842 · NIDDK · UNIVERSITY OF ARIZONA · PI SEAN W LIMESAND · 2009 to 2026
$5.6M
HHS | NIH | National Heart, Lung, and Blood Institute (NHBLI) HL007249HHS | NIH | National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) DK084842NHLBI NIH HHS T32 HL007249NIDDK NIH HHS R01 DK084842
6 · The paper itself

Abstract

Fetal conditions associated with placental insufficiency and intrauterine growth restriction (IUGR) chronically elevate plasma norepinephrine (NE) concentrations. Our objective was to evaluate the effects of chronically elevated NE on insulin-stimulated glucose metabolism in normally grown, non-IUGR fetal sheep, which are independent of other IUGR-related reductions in nutrients and oxygen availability. After surgical placement of catheters, near-term fetuses received either a saline (control) or NE intravenous infusion with controlled euglycemia. In NE fetuses, plasma NE concentrations were 5.5-fold greater than controls, and fetal euglycemia was maintained with a maternal insulin infusion. Insulin secretion was blunted in NE fetuses during an intravenous glucose tolerance test. Weight-specific fluxes for glucose were measured during a euinsulinemic-euglycemic clamp (EEC) and a hyperinsulinemic-euglycemic clamp (HEC). Plasma glucose and insulin concentrations were not different between groups within each clamp, but insulin concentrations increased 10-fold between the EEC and the HEC. During the EEC, rates of glucose uptake (umbilical uptake + exogenous infusion) and glucose utilization were 47% and 35% lower (

Indexed as

AnimalsBlood GlucoseFemaleFetal Growth RetardationFetusInsulinInsulin ResistanceIslets of LangerhansNorepinephrinePlacental InsufficiencyPregnancySheepBlood GlucoseInsulinNorepinephrineadrenergic receptorcatecholaminesinsulin secretioninsulin-stimulated glucose metabolism

Identifiers

PMID32667834
PMCPMC7509250
OpenAlexW3043808153

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.