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Delivering growth factors through a polymeric scaffold to cell cultures containing both nucleus pulposus and annulus fibrosus

Overview of attention for article published in Turkish neurosurgery, January 2018
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Title
Delivering growth factors through a polymeric scaffold to cell cultures containing both nucleus pulposus and annulus fibrosus
Published in
Turkish neurosurgery, January 2018
DOI 10.5137/1019-5149.jtn.22672-18.1
Pubmed ID
Authors

Yener Akyuva, Necati Kaplan, Ibrahim Yilmaz, Hanefi Ozbek, Duygu Yasar Sirin, Numan Karaaslan, Olcay Guler, Ozkan Ates

Abstract

The aim of this in vitro experimental study was to design a novel, polyvinyl alcohol(PVA)-basedpolymericscaffold that permits the controlled release of insulin-likegrowthfactor1(IGF-1)/bonemorphogenetic protein-2(BMP-2) following intervertebral disc administration. The drug delivery system was composed of two different solutions that formed a scaffold within seconds after coming into contact with each other. We performed swelling,pH,temperature tests and analysis of the controlled release of growth factors from this system.The release kinetics of the growth factors was determined through enzyme linked immunosorbent assay(ELISA). Cell proliferation and viability was monitored with microscopy and analyzed using an MTT assay and acridine orange/propidium iodide(AO/PI) staining. Chondroadherin(CHAD), hypoxiainduciblefactor-1alpha(HIF-1α),collagentypeII(COL2A1) gene expressions were determined with quantitative real-timepolymerasechainreaction(qRT-PCR) analysis to show the effects of IGF-1/BMP-2 administration on annulus fibrosus cell(AFC)/nucleus pulposus cell(NPC) cultures. The scaffold allowed for the controlled release of IGF-1 and BMP-2 in different time intervals. It was observed that as the application time increased, the number of cells and the degree of extracellular matrix development increased in AFC/NPC cultures. AO/PI staining and an MTT analysis showed that cells retained their specific morphology and continued to proliferate. It was observed that HIF-1α and CHAD expression increased in a time-dependent manner, and there wasn't any COL2A1 expression in the AFC/NPC cultures. The designed scaffold may be used as an alternative method for intervertebral disc administration of growth factors after further in vivo studies. We believe that such prototype scaffolds may be an innovative technology in targeted drug therapies after reconstructive neurosurgeries.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 22 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Unknown 22 100%

Demographic breakdown

Readers by professional status Count As %
Student > Bachelor 5 23%
Student > Ph. D. Student 3 14%
Professor > Associate Professor 2 9%
Student > Master 1 5%
Student > Doctoral Student 1 5%
Other 0 0%
Unknown 10 45%
Readers by discipline Count As %
Neuroscience 2 9%
Biochemistry, Genetics and Molecular Biology 2 9%
Engineering 2 9%
Nursing and Health Professions 1 5%
Agricultural and Biological Sciences 1 5%
Other 4 18%
Unknown 10 45%
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 26 April 2018.
All research outputs
#22,767,715
of 25,382,440 outputs
Outputs from Turkish neurosurgery
#241
of 348 outputs
Outputs of similar age
#389,382
of 449,583 outputs
Outputs of similar age from Turkish neurosurgery
#10
of 18 outputs
Altmetric has tracked 25,382,440 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 348 research outputs from this source. They receive a mean Attention Score of 1.2. 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 449,583 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 18 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.