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X Demographics
Mendeley readers
Attention Score in Context
| Title |
The enhancement of bone regeneration by gene activated matrix encoding for platelet derived growth factor
|
|---|---|
| Published in |
Clinical Materials, October 2013
|
| DOI | 10.1016/j.biomaterials.2013.10.021 |
| Pubmed ID | |
| Authors |
Satheesh Elangovan, Sheetal R. D'Mello, Liu Hong, Ryan D. Ross, Chantal Allamargot, Deborah V. Dawson, Clark M. Stanford, Georgia K. Johnson, D. Rick Sumner, Aliasger K. Salem |
| Abstract |
Gene therapy using non-viral vectors that are safe and efficient in transfecting target cells is an effective approach to overcome the shortcomings of protein delivery of growth factors. The objective of this study was to develop and test a non-viral gene delivery system for bone regeneration utilizing a collagen scaffold to deliver polyethylenimine (PEI)-plasmid DNA (pDNA) [encoding platelet derived growth factor-B (PDGF-B)] complexes. The PEI-pPDGF-B complexes were fabricated at amine (N) to phosphate (P) ratio of 10 and characterized for size, surface charge, and in vitro cytotoxicity and transfection efficacy in human bone marrow stromal cells (BMSCs). The influence of the complex-loaded collagen scaffold on cellular attachment and recruitment was evaluated in vitro using microscopy techniques. The in vivo regenerative capacity of the gene delivery system was assessed in 5 mm diameter critical-sized calvarial defects in Fisher 344 rats. The complexes were ~100 nm in size with a positive surface charge. Complexes prepared at an N/P ratio of 10 displayed low cytotoxicity as assessed by a cell viability assay. Confocal microscopy revealed significant proliferation of BMSCs on complex-loaded collagen scaffolds compared to empty scaffolds. In vivo studies showed significantly higher new bone volume/total volume (BV/TV) % in calvarial defects treated with the complex-activated scaffolds following 4 weeks of implantation (14- and 44-fold higher) when compared to empty defects or empty scaffolds, respectively. Together, these findings suggest that non-viral PDGF-B gene-activated scaffolds are effective for bone regeneration and are an attractive gene delivery system with significant potential for clinical translation. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | 50% |
| Unknown | 1 | 50% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Members of the public | 1 | 50% |
| Practitioners (doctors, other healthcare professionals) | 1 | 50% |
Mendeley readers
The data shown below were compiled from readership statistics for 114 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United States | 1 | <1% |
| Unknown | 113 | 99% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 31 | 27% |
| Student > Master | 21 | 18% |
| Researcher | 10 | 9% |
| Student > Postgraduate | 7 | 6% |
| Professor > Associate Professor | 6 | 5% |
| Other | 14 | 12% |
| Unknown | 25 | 22% |
| Readers by discipline | Count | As % |
|---|---|---|
| Engineering | 20 | 18% |
| Agricultural and Biological Sciences | 16 | 14% |
| Biochemistry, Genetics and Molecular Biology | 12 | 11% |
| Medicine and Dentistry | 10 | 9% |
| Materials Science | 6 | 5% |
| Other | 18 | 16% |
| Unknown | 32 | 28% |
Attention Score in Context
This research output has an Altmetric Attention Score of 179. 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 24 May 2015.
All research outputs
#224,758
of 25,373,627 outputs
Outputs from Clinical Materials
#23
of 10,751 outputs
Outputs of similar age
#1,602
of 224,755 outputs
Outputs of similar age from Clinical Materials
#1
of 151 outputs
Altmetric has tracked 25,373,627 research outputs across all sources so far. Compared to these this one has done particularly well and is in the 99th percentile: it's in the top 5% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 10,751 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.8. This one has done particularly well, scoring higher than 99% 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 224,755 tracked outputs that were published within six weeks on either side of this one in any source. This one has done particularly well, scoring higher than 99% of its contemporaries.
We're also able to compare this research output to 151 others from the same source and published within six weeks on either side of this one. This one has done particularly well, scoring higher than 99% of its contemporaries.