Evidence map›Paper›PMID 27488276›Full record

ArticleJournal of the renin-angiotensin-aldosterone system : JRAAS2016

Serum activity of angiotensin converting enzyme 2 is decreased in patients with acute ischemic stroke.

Douglas M Bennion, Christian A Rosado, Emily A Haltigan, Robert W Regenhardt, Colin Sumners, Michael F Waters

Open access · hybridAbstract read
In one paragraph

Article in Journal of the renin-angiotensin-aldosterone system : JRAAS, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
2.2field-weighted citation impact, top 11% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Treatment Approaches to Lacunar Stroke.Journal of stroke and cerebrovascular diseases : the official journal of National Stroke Association · 2019
    Review
  8. Article
  9. Article
  10. Review
  11. Article
  12. Article
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 1 institution in 1 country.

Douglas M BennionDepartment of Physiology and Functional Genomics, University of Florida, USA douglasbennion@gmail.com.
Christian A RosadoNeurovascular Division, Department of Neurology, University of Florida, USA.
Emily A HaltiganDepartment of Physiology and Functional Genomics, University of Florida, USA.
Robert W RegenhardtDepartment of Physiology and Functional Genomics, University of Florida, USA.
Colin SumnersDepartment of Physiology and Functional Genomics, University of Florida, USA.
Michael F WatersNeurovascular Division, Department of Neurology, University of Florida, USA.
University of Florida · US

Funding

Multidisciplinary Training Program in HypertensionT32HL083810 · NHLBI · UNIVERSITY OF FLORIDA · PI WOOD, CHARLES E · 2007 to 2017
$2.5M
NHLBI NIH HHS T32 HL083810
6 · The paper itself

Abstract

Levels of angiotensin converting enzyme 2 (ACE2), a cardio and neuro-protective carboxypeptidase, are dynamically altered after stroke in preclinical models. We sought to characterize the previously unexplored changes in serum ACE2 activity of stroke patients and the mechanism of these changes. Serum samples were obtained from patients during acute ischemic stroke (n=39), conditions mimicking stroke (stroke-alert, n=23), or from control participants (n=20). Enzyme activity levels were analyzed by fluorometric assay and correlated with clinical variables by regression analyses. Serum ACE2 activity was significantly lower in acute ischemic stroke as compared to both control and stroke-alert patients, followed by an increase to control levels at three days. Serum ACE2 activity significantly correlated with the presence of ischemic stroke after controlling for other factors (P=0.01). Additional associations with ACE2 activity included a positive correlation with systolic blood pressure at presentation in stroke-alert (R(2)=0.24, P=0.03), while stroke levels showed no correlation (R(2)=0.01, P=0.50). ACE2 sheddase activity was unchanged between groups. These dynamic changes in serum ACE2 activity in stroke, which concur with preclinical studies, are not likely to be driven primarily by acute changes in blood pressure or sheddase activity. These findings provide new insight for developing therapies targeting this protective system in ischemic stroke.

Indexed as

Angiotensin-Converting Enzyme 2Blood PressureBrain IschemiaFemaleHumansLinear ModelsMaleMiddle AgedPeptidyl-Dipeptidase AStrokeSystoleACE2 protein, humanACE protein, humanAngiotensin-Converting Enzyme 2Peptidyl-Dipeptidase Aangiotensin-(1–7)Angiotensin converting enzyme 2 (ACE2)angiotensin converting enzyme (ACE)ischemic strokerenin–angiotensin system

Identifiers

PMID27488276
PMCPMC5843889
OpenAlexW2483960323

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.