Evidence map›Paper›PMID 21761867›Full record

ArticleACS nano2011

Adverse biophysical effects of hydroxyapatite nanoparticles on natural pulmonary surfactant.

Qihui Fan, Yi E Wang, Xinxin Zhao, Joachim S C Loo, Yi Y Zuo

Open access · greenAbstract read
In one paragraph

Article in ACS nano, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
6.7field-weighted citation impact, top 3% 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

25 citing papers in PubMed, 130 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Article
  5. Pulmonary surfactant as a versatile biomaterial to fight COVID-19.Journal of controlled release : official journal of the Controlled Release Society · 2022
    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

5 authors at 2 institutions in 2 countries.

Qihui FanDepartment of Mechanical Engineering, University of Hawaii at Manoa, Honolulu, Hawaii 96822, USA.
Yi E Wang
Xinxin Zhao
Joachim S C Loo
Yi Y Zuo
University of Hawaiʻi at Mānoa · USNanyang Technological University · SG

Funding

RESEARCH DESIGN AND BIOSTATISTICS COREU54MD007584 · NIMHD · UNIVERSITY OF HAWAII AT MANOA · PI MOKUAU, NOREEN, SHIRAMIZU, BRUCE T · 2012 to 2018
$21.1M
NIMHD NIH HHS U54 MD007584
6 · The paper itself

Abstract

Inhaled nanoparticles (NPs) must first interact with the pulmonary surfactant (PS) lining layer that covers the entire internal surface of the respiratory tract and plays an important role in surface tension reduction and host defense. Interactions with the PS film determine the subsequent clearance, retention, and translocation of the inhaled NPs and hence their potential toxicity. To date, little is known how NPs interact with PS, and whether or not NPs have adverse effects on the biophysical function of PS. We found a time-dependent toxicological effect of hydroxyapatite NPs (HA-NPs) on a natural PS, Infasurf, and the time scale of surfactant inhibition after particle exposure was comparable to the turnover period of surfactant metabolism. Using a variety of in vitro biophysicochemical characterization techniques, we have determined the inhibition mechanism to be due to protein adsorption onto the HA-NPs. Consequently, depletion of surfactant proteins from phospholipid vesicles caused conversion of original large vesicles into much smaller vesicles with poor surface activity. These small vesicles, in turn, inhibited biophysical function of surfactant films after adsorption at the air-water interface. Cytotoxicity study found that the HA-NPs at the studied concentration were benign to human bronchial epithelial cells, thereby highlighting the importance of evaluating biophysical effect of NPs on PS. The NP-PS interaction mechanism revealed by this study may not only provide new insight into the toxicological study of nanoparticles but also shed light on the feasibility of NP-based pulmonary drug delivery.

Indexed as

Biological ProductsPulmonary SurfactantsToxicity TestsAdsorptionBiophysical PhenomenaBronchiCell SurvivalCytotoxinsDurapatiteEpithelial CellsHumansNanoparticlesPhospholipidsPulmonary Surfactant-Associated Protein BPulmonary Surfactant-Associated Protein CSurface PropertiesBiological ProductsCytotoxinsDurapatitePhospholipidsPulmonary Surfactant-Associated Protein BPulmonary Surfactant-Associated Protein CPulmonary Surfactants

Identifiers

PMID21761867
PMCPMC4854525
OpenAlexW2029787685

What OpenQuestion holds

Textmetadata
LicenceTDM
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.