In vivo evaluation of the biocompatibility and biodegradation of a new denatured plasma membrane combined with liquid PRF (Alb-PRF).

Gheno, Ezio; Mourão, Carlos Fernando de Almeida Barros; Mello-Machado, Rafael Coutinho de; Stellet Lourenço, Emanuele; Miron, Richard J.; Catarino, Karoline Ferreira Farias; Alves, Adriana Terezinha; Alves, Gutemberg Gomes; Calasans-Maia, Mônica D (2021). In vivo evaluation of the biocompatibility and biodegradation of a new denatured plasma membrane combined with liquid PRF (Alb-PRF). Platelets, 32(4), pp. 542-554. Tayler & Francis 10.1080/09537104.2020.1775188

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Guided bone regeneration (GBR) is a process that involves the regeneration of bone defects through the application of occlusive membranes that mechanically exclude the population of non-osteogenic cells from the surrounding soft tissue. Interestingly, platelet-rich fibrin (PRF) has previously been proposed as an autologous GBR membrane despite its short-term resorption period of 2-3 weeks. Recent clinical observations have demonstrated that, by heating a liquid platelet-poor plasma (PPP) layer and mixing the cell-rich buffy coat zone, the resorption properties of heated albumin gel with liquid-PRF (Alb-PRF) can be significantly improved. The aim of this study was to evaluate the inflammatory reaction, biocompatibility, and extended degradation properties of a new autologous Alb-PRF membrane in comparison to commonly utilized standard PRF after nude mice implantation, according to ISO 10993-6/2016. Two standard preparations of PRF (L-PRF and H-PRF) were compared to novel Alb-PRF following subcutaneous implantation at 7, 14, and 21 days. All groups demonstrated excellent biocompatibility owing to their autologous sources. However, it is worth noting that, while both L-PRF and H-PRF membranes demonstrated significant or complete resorption by 21 days, the Alb-PRF membrane remained volume-stable throughout the duration of the study. This study demonstrates-for the first time, to the best of our knowledge-a marked improvement in the membrane stability of Alb-PRF. This indicates its future potential for use as a biological barrier membrane for GBR procedures with a long-lasting half-life, or as a biological filler material in esthetic medicine applications. Thus, further studies are warranted to explore future clinical applications in various fields of medicine.

Item Type:	Journal Article (Original Article)
Division/Institute:	04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology 04 Faculty of Medicine > School of Dental Medicine > Periodontics Research
UniBE Contributor:	Miron, Richard John
Subjects:	600 Technology > 610 Medicine & health
ISSN:	1369-1635
Publisher:	Tayler & Francis
Language:	English
Submitter:	Doris Burri
Date Deposited:	17 Dec 2020 10:59
Last Modified:	05 Dec 2022 15:43
Publisher DOI:	10.1080/09537104.2020.1775188
PubMed ID:	32531175
Uncontrolled Keywords:	Alb-PRF albumin extended-PRF horizontal centrifugation platelet-rich fibrin
URI:	https://boris.unibe.ch/id/eprint/149750