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Enhanced bone regeneration and visual monitoring via superparamagnetic iron oxide nanoparticle scaffold in rats

Overview of attention for article published in Journal of Tissue Engineering and Regenerative Medicine, February 2018
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Title
Enhanced bone regeneration and visual monitoring via superparamagnetic iron oxide nanoparticle scaffold in rats
Published in
Journal of Tissue Engineering and Regenerative Medicine, February 2018
DOI 10.1002/term.2641
Pubmed ID
Authors

Shuying Hu, Yi Zhou, Yantao Zhao, Yang Xu, Feimin Zhang, Ning Gu, Junqing Ma, Mark A. Reynolds, Yang Xia, Hockin H.K. Xu

Abstract

A main challenge for use of scaffolds in bone engineering involves non-invasive monitoring in vivo and enhanced bone regeneration. The tissue-repair effect of super-paramagnetic iron oxide nanoparticles (SPIONs) was demonstrated previously by our group. However, testing in vivo is needed to confirm in vitro results. Here, SPIONs loaded gelatin sponge (GS) was used as a scaffold (SPIONs-GS) and implanted in the incisor sockets of Sprague-Dawley rats. Incisor sockets filled with nothing and filled with GS served as controls. Rats were sacrificed at 2 and 4 weeks. A significant decrease in the signal intensity of T2-weighted magnetic resonance imaging in the SPIONs-GS group was noted. Changes in image intensity of scaffolds (indicating scaffold degradation and interaction with host tissues) could be visually monitored over time. Micro-computed tomography showed that the SPIONs-GS group had more newly-formed bone (64.44±10.92 vs. 28.1±4.49, p < 0.0001) and a better-preserved alveolar ridge than blank control group at 4 weeks (0.962±0.01 vs. 0.92±0.01, p < 0.0001). Histology confirmed imaging results, showing good consistency in new bone formation and scaffold degradation. The number of SPIONs decreased rapidly with time due to quick degradation of GS, whereas the number of endocytic SPIONs in cells increased with time. These residual SPIONs, together with newly-formed bone, could be detected by MRI at 4 weeks. Therefore, it was clear that SPIONs induced active osteogenesis. In conclusion, good visibility on MRI and enhanced regeneration of bone can be obtained by implanting SPIONs-GS in vivo without using an external magnetic field.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 61 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 61 100%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 11 18%
Student > Master 7 11%
Researcher 5 8%
Student > Doctoral Student 3 5%
Student > Bachelor 3 5%
Other 10 16%
Unknown 22 36%
Readers by discipline Count As %
Medicine and Dentistry 11 18%
Engineering 9 15%
Agricultural and Biological Sciences 2 3%
Chemistry 2 3%
Materials Science 2 3%
Other 4 7%
Unknown 31 51%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 1. 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 08 November 2019.
All research outputs
#20,459,801
of 23,016,919 outputs
Outputs from Journal of Tissue Engineering and Regenerative Medicine
#825
of 994 outputs
Outputs of similar age
#375,381
of 437,309 outputs
Outputs of similar age from Journal of Tissue Engineering and Regenerative Medicine
#20
of 25 outputs
Altmetric has tracked 23,016,919 research outputs across all sources so far. This one is in the 1st percentile – i.e., 1% of other outputs scored the same or lower than it.
So far Altmetric has tracked 994 research outputs from this source. They receive a mean Attention Score of 4.7. This one is in the 1st percentile – i.e., 1% of its peers scored the same or lower than it.
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 437,309 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 25 others from the same source and published within six weeks on either side of this one. This one is in the 1st percentile – i.e., 1% of its contemporaries scored the same or lower than it.