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Effects of zinc oxide nanoparticles on Kupffer cell phagosomal motility, bacterial clearance, and liver function

Overview of attention for article published in International Journal of Nanomedicine, June 2015
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About this Attention Score

  • Above-average Attention Score compared to outputs of the same age (63rd percentile)
  • High Attention Score compared to outputs of the same age and source (87th percentile)

Mentioned by

twitter
4 tweeters
facebook
1 Facebook page

Citations

dimensions_citation
13 Dimensions

Readers on

mendeley
44 Mendeley
Title
Effects of zinc oxide nanoparticles on Kupffer cell phagosomal motility, bacterial clearance, and liver function
Published in
International Journal of Nanomedicine, June 2015
DOI 10.2147/ijn.s82807
Pubmed ID
Authors

Christa Watson, Ramon Molina, Andressa Louzada, Thomas Donaghey, Joseph Brain, Kimberly Murdaugh

Abstract

Zinc oxide engineered nanoparticles (ZnO ENPs) have potential as nanomedicines due to their inherent properties. Studies have described their pulmonary impact, but less is known about the consequences of ZnO ENP interactions with the liver. This study was designed to describe the effects of ZnO ENPs on the liver and Kupffer cells after intravenous (IV) administration. First, pharmacokinetic studies were conducted to determine the tissue distribution of neutron-activated (65)ZnO ENPs post-IV injection in Wistar Han rats. Then, a noninvasive in vivo method to assess Kupffer cell phagosomal motility was employed using ferromagnetic iron particles and magnetometry. We also examined whether prior IV injection of ZnO ENPs altered Kupffer cell bactericidal activity on circulating Pseudomonas aeruginosa. Serum and liver tissues were collected to assess liver-injury biomarkers and histological changes, respectively. We found that the liver was the major site of initial uptake of (65)ZnO ENPs. There was a time-dependent decrease in tissue levels of (65)Zn in all organs examined, refecting particle dissolution. In vivo magnetometry showed a time-dependent and transient reduction in Kupffer cell phagosomal motility. Animals challenged with P. aeruginosa 24 hours post-ZnO ENP injection showed an initial (30 minutes) delay in vascular bacterial clearance. However, by 4 hours, IV-injected bacteria were cleared from the blood, liver, spleen, lungs, and kidneys. Seven days post-ZnO ENP injection, creatine phosphokinase and aspartate aminotransferase levels in serum were significantly increased. Histological evidence of hepatocyte damage and marginated neutrophils were observed in the liver. Administration of ZnO ENPs transiently inhibited Kupffer cell phagosomal motility and later induced hepatocyte injury, but did not alter bacterial clearance from the blood or killing in the liver, spleen, lungs, or kidneys. Our data show that diminished Kupffer cell organelle motion correlated with ZnO ENP-induced liver injury.

Twitter Demographics

The data shown below were collected from the profiles of 4 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 44 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 44 100%

Demographic breakdown

Readers by professional status Count As %
Researcher 9 20%
Other 6 14%
Student > Master 6 14%
Student > Doctoral Student 6 14%
Student > Ph. D. Student 5 11%
Other 6 14%
Unknown 6 14%
Readers by discipline Count As %
Medicine and Dentistry 7 16%
Environmental Science 5 11%
Biochemistry, Genetics and Molecular Biology 4 9%
Pharmacology, Toxicology and Pharmaceutical Science 4 9%
Physics and Astronomy 3 7%
Other 13 30%
Unknown 8 18%

Attention Score in Context

This research output has an Altmetric Attention Score of 3. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 15 July 2015.
All research outputs
#2,061,313
of 5,357,318 outputs
Outputs from International Journal of Nanomedicine
#188
of 1,436 outputs
Outputs of similar age
#66,933
of 188,014 outputs
Outputs of similar age from International Journal of Nanomedicine
#10
of 124 outputs
Altmetric has tracked 5,357,318 research outputs across all sources so far. This one has received more attention than most of these and is in the 60th percentile.
So far Altmetric has tracked 1,436 research outputs from this source. They receive a mean Attention Score of 1.8. This one has done well, scoring higher than 85% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 188,014 tracked outputs that were published within six weeks on either side of this one in any source. This one has gotten more attention than average, scoring higher than 63% of its contemporaries.
We're also able to compare this research output to 124 others from the same source and published within six weeks on either side of this one. This one has done well, scoring higher than 87% of its contemporaries.