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The effect of laminin-1-doped nanoroughened implant surfaces: gene expression and morphological evaluation
Malmö högskola, Faculty of Odontology (OD).
Malmö högskola, Faculty of Odontology (OD).
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2012 (English)In: International Journal of Biomaterials, ISSN 1687-8787, E-ISSN 1687-8795, Vol. 2012, article id 305638Article in journal (Refereed) Published
Abstract [en]

Aim. This study aimed to observe the morphological and molecular effect of laminin-1 doping to nanostructured implant surfaces in a rabbit model. Materials and Methods. Nanostructured implants were coated with laminin-1 (test; dilution, 100 μg/mL) and inserted into the rabbit tibiae. Noncoated implants were used as controls. After 2 weeks of healing, the implants were removed and subjected to morphological analysis using scanning electron microscopy (SEM) and gene expression analysis using the real-time reverse transcriptase-polymerase chain reaction (RT-PCR). Results. SEM revealed bony tissue attachment for both control and test implants. Real-time RT-PCR analysis showed that the expression of osteoblast markers RUNX-2, osteocalcin, alkaline phosphatase, and collagen I was higher (1.62-fold, 1.53-fold, 1.97-fold, and 1.04-fold, resp.) for the implants modified by laminin-1 relative to the control. All osteoclast markers investigated in the study presented higher expression on the test implants than controls as follows: tartrate-resistant acid phosphatase (1.67-fold), calcitonin receptor (1.35-fold), and ATPase (1.25-fold). The test implants demonstrated higher expression of inflammatory markers interleukin-10 (1.53-fold) and tumour necrosis factor-α (1.61-fold) relative to controls. Conclusion. The protein-doped surface showed higher gene expression of typical genes involved in the osseointegration cascade than the control surface.

Place, publisher, year, edition, pages
Hindawi Publishing Corporation, 2012. Vol. 2012, article id 305638
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Dentistry
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URN: urn:nbn:se:mau:diva-7041DOI: 10.1155/2012/305638ISI: 000215225900013PubMedID: 23304151Scopus ID: 2-s2.0-84872133266Local ID: 14706OAI: oai:DiVA.org:mau-7041DiVA, id: diva2:1403995
Available from: 2020-02-28 Created: 2020-02-28 Last updated: 2024-02-05Bibliographically approved

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Hayashi, MarikoWennerberg, AnnJimbo, Ryo

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