Evidence map›Paper›PMID 23071607›Full record

ArticlePloS one2012

Pre-diabetes augments neuropeptide Y1- and α1-receptor control of basal hindlimb vascular tone in young ZDF rats.

Nicole M Novielli, Baraa K Al-Khazraji, Philip J Medeiros, Daniel Goldman, Dwayne N Jackson

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.9field-weighted citation impact, top 22% 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

6 citing papers in PubMed, 11 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

Nicole M NovielliDepartment of Medical Biophysics, The University of Western Ontario, London, Ontario, Canada.
Baraa K Al-Khazraji
Philip J Medeiros
Daniel Goldman
Dwayne N Jackson
Western University · CA

Funding

Microvascular O2 Delivery: Impact of Erythrocyte-Released ATPR33HL089094 · NHLBI · SAINT LOUIS UNIVERSITY · PI ELLSWORTH, MARY L · 2007 to 2009
$1.6M
NHLBI NIH HHS R33 HL089094
6 · The paper itself

Abstract

backgroundPeripheral vascular disease in pre-diabetes may involve altered sympathetically-mediated vascular control. Thus, we investigated if pre-diabetes modifies baseline sympathetic Y(1)-receptor (Y(1)R) and α(1)-receptor (α(1)R) control of hindlimb blood flow (Q(fem)) and vascular conductance (VC).

methodsQ(fem) and VC were measured in pre-diabetic ZDF rats (PD) and lean controls (CTRL) under infusion of BIBP3226 (Y(1)R antagonist), prazosin (α(1)R antagonist) and BIBP3226+prazosin. Neuropeptide Y (NPY) concentration and Y(1)R and α(1)R expression were determined from hindlimb skeletal muscle samples.

resultsBaseline Q(fem) and VC were similar between groups. Independent infusions of BIBP3226 and prazosin led to increases in Q(fem) and VC in CTRL and PD, where responses were greater in PD (p<0.05). The percent change in VC following both drugs was also greater in PD compared to CTRL (p<0.05). As well, Q(fem) and VC responses to combined blockade (BIBP3226+prazosin) were greater in PD compared to CTRL (p<0.05). Interestingly, an absence of synergistic effects was observed within groups, as the sum of the VC responses to independent drug infusions was similar to responses following combined blockade. Finally, white and red vastus skeletal muscle NPY concentration, Y(1)R expression and α(1)R expression were greater in PD compared to CTRL.

conclusionsFor the first time, we report heightened baseline Y(1)R and α(1)R sympathetic control of Q(fem) and VC in pre-diabetic ZDF rats. In support, our data suggest that augmented sympathetic ligand and receptor expression in pre-diabetes may contribute to vascular dysregulation.

Indexed as

VasoconstrictionAcetylcholineAdrenergic alpha-1 Receptor AgonistsAdrenergic alpha-1 Receptor AntagonistsAnimalsArginineBlood PressureDrug SynergismHeart RateHindlimbMaleMuscle, SkeletalNeuropeptide YNitric Oxide DonorsNitroprussidePrazosinAcetylcholineAdrenergic alpha-1 Receptor AgonistsAdrenergic alpha-1 Receptor AntagonistsArginineBIBP 3226Neuropeptide Yneuropeptide Y-Y1 receptorNitric Oxide DonorsNitroprussidePrazosinReceptors, Adrenergic, alpha-1Receptors, Neuropeptide Y

Identifiers

PMID23071607
PMCPMC3465334
OpenAlexW1991599990

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.