Evidence map›Paper›PMID 33251352›Full record

ArticleHeliyon2020

Acute administration of nicotine induces transient elevation of blood pressure and increases myocardial infarct size in rats.

Lifu Zhao, Wangde Dai, Juan Carreno, Jianru Shi, Michael T Kleinman, Robert A Kloner

Open access · goldAbstract read
In one paragraph

Article in Heliyon, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.3field-weighted citation impact, top 45% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

  1. Article
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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

6 authors at 3 institutions in 1 country.

Lifu ZhaoHuntington Medical Research Institutes, Pasadena, CA, 91105, USA.
Wangde DaiHuntington Medical Research Institutes, Pasadena, CA, 91105, USA.
Juan CarrenoHuntington Medical Research Institutes, Pasadena, CA, 91105, USA.
Jianru ShiHuntington Medical Research Institutes, Pasadena, CA, 91105, USA.
Michael T KleinmanAir Pollution Health Effects Laboratory, Department of Medicine, University of California, Irvine, CA, 92697-1830, USA.
Robert A KlonerHuntington Medical Research Institutes, Pasadena, CA, 91105, USA.
Huntington Medical Research Institutes · USUniversity of California, Irvine · USUniversity of Southern California · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsWe investigated the acute effects of nicotine on myocardial infarct size, no reflow, hemodynamics and cardiac function in an acute myocardial ischemia and reperfusion infarction rat model. MAIN

methodsFemale Sprague-Dawley rats (n = 23/group) received an intravenous loading dose of nicotine at 2.0 μg/kg/min or saline control for 30 min before starting coronary artery occlusion, then followed by a maintenance dose 0.35 μg/kg/min of nicotine to the end of 30 min occlusion and 3 h reperfusion. KEY

findingsAt baseline, there was no difference in systolic blood pressure (BP in mmHg) (nicotine, 69.0 ± 2.7; control, 69.3 ± 4.4; SIGNIFICANCE: While acute nicotine only transiently elevated blood pressure, it did not affect hemodynamic parameters during coronary artery occlusion. Nicotine increased myocardial infarct size, suggesting that the increase in infarct size was not simply due to an increase in oxygen demand due to altered afterload, heart rate, or contractility, but may have been due to a more direct effect on the myocardium.

Indexed as

CardiologyCell biologyHealth sciencesHemodynamicIschemia and reperfusion injuryMyocardial infarctionNicotinePathologyPathophysiologyToxicology

Identifiers

PMID33251352
PMCPMC7680768
OpenAlexW3098016611

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.