Evidence map›Paper›PMID 29971611›Full record

ArticleNanoscale research letters2018

The effects of inhaled multi-walled carbon nanotubes on blood pressure and cardiac function.

Wen Zheng, Walter McKinney, Michael L Kashon, Daniel Pan, Vincent Castranova, Hong Kan

Open access · goldAbstract read
In one paragraph

Article in Nanoscale research letters, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.3field-weighted citation impact, top 23% 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

4 citing papers in PubMed, 23 citations in OpenAlex.

  1. Review
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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 2 institutions in 1 country.

Wen ZhengHealth Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, 26505, USA.
Walter McKinneyHealth Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, 26505, USA.
Michael L KashonHealth Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, 26505, USA.
Daniel PanHealth Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, 26505, USA.
Vincent CastranovaDepartment of Pharmaceutical Sciences, School of Pharmacy, West Virginia University, Morgantown, WV, 26506, USA.
Hong KanHealth Effects Laboratory Division, National Institute for Occupational Safety and Health, Morgantown, WV, 26505, USA. hvn4@cdc.gov.
National Institute for Occupational Safety and Health · USWest Virginia University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundHeart rate variability (HRV) as a marker reflects the activity of the autonomic nervous system. The prognostic significance of HRV for cardiovascular disease has been reported in clinical and epidemiological studies. Our laboratory has reported alterations in rat heart rate variability (HRV) due to increasing activity of both sympathetic and parasympathetic nervous system after pulmonary exposure to multi-walled carbon nanotubes (MWCNTs). This suggests that pulmonary inhalation of engineered nanoparticles (ENs) may lead to functional changes in the cardiovascular system. The present study further investigated the effects of inhaled MWCNTs on the cardiovascular system and evaluated the correlation between the alterations in HRV and changes in cardiovascular function.

methodsMale Sprague-Dawley rats were pre-implanted with a telemetry device and exposed by inhalation to MWCNTs for 5 h at a concentration of 5 mg/m

resultsInhalation of MWCNTs significantly increased both systolic and diastolic blood pressure and decreased heart rate in awake freely moving rat. Additionally, inhalation of MWCNTs also reduced cardiac stroke work, stroke volume, and output in response to dobutamine in anesthetized rats.

conclusionsInhalation of MWCNTs altered cardiovascular performance, which was associated with MWCNT exposure-induced alterations in the sympathetic and parasympathetic nervous system. These findings suggest the need to further investigate the cardiovascular effects of inhaled MWCNTs.

Indexed as

Blood pressureCardiac functionInhalationMulti-walled carbon nanotubesNanoparticles

Identifiers

PMID29971611
PMCPMC6029995
OpenAlexW2810044012

What OpenQuestion holds

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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.