Serap Bulut Cobden1, Kayhan Oztürk2, Selcuk Duman3, Hasan Esen4, Tahsin Murad Aktan3, Mustafa Cihat Avunduk4, Cagdas Elsurer2. 1. Department of Otolaryngology, Selcuklu Faculty of Medicine, Selcuk University, Konya, Turkey. Electronic address: serapbulut88@mynet.com. 2. Department of Otolaryngology, Selcuklu Faculty of Medicine, Selcuk University, Konya, Turkey. 3. Department of Human Histology and Embryology, Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey. 4. Department of Pathology, Faculty of Medicine, Necmettin Erbakan University, Konya, Turkey.
Abstract
OBJECTIVES: Platelet-rich plasma (PRP) is a reliable and has low side-effect profile and has beneficial effects on wound healing. Its investigatory effects on wound-healing process were shown on various tissues. The aim of the present study was to evaluate effectiveness of PRP application on scar tissue of acute vocal fold injury. MATERIALS AND METHODS: Twenty-four Wistar rats were used in the study. The entire layer of the lamina propria down to the thyroarytenoid muscle of 10 subjects was unilaterally injured by with a microscissor. Gelfoam-absorbed PRP was applied on the injured area for 10 minutes. Control group consisted of rats unilaterally injured using a microscissor, and gelfoam with normal saline was applied on the injured area. Following sacrifice, the larynxes were carefully dissected and removed for histopathologic examination. After excised larynx experiments, serial sections were prepared from vocal fold. Hematoxylin eosin and immunohistochemical staining were done for epithelial growth factor receptor (EGFR), fibroblast growth factor receptor (FGFR1), and vascular endothelial growth factor (VEGF) staining for histopathologic examinations. RESULTS: There was not a significant difference between the two groups for lymphocyte. Although collagen and VEGF were higher in the study group, there was not a significant difference between the groups (P > 0.05). There was a significant difference between control and study groups for EGFR and FGFR1(P < 0.05). CONCLUSIONS: PRP has beneficial effects on wound healing. PRP accelerates epithelization of injured rat vocal folds by inducing EGFR secretion. PRP is an autogenous, reliable, low side-effect profile, easily harvested material. PRP may be useful to prevent scar formation. Copyright Â
OBJECTIVES: Platelet-rich plasma (PRP) is a reliable and has low side-effect profile and has beneficial effects on wound healing. Its investigatory effects on wound-healing process were shown on various tissues. The aim of the present study was to evaluate effectiveness of PRP application on scar tissue of acute vocal fold injury. MATERIALS AND METHODS: Twenty-four Wistar rats were used in the study. The entire layer of the lamina propria down to the thyroarytenoid muscle of 10 subjects was unilaterally injured by with a microscissor. Gelfoam-absorbed PRP was applied on the injured area for 10 minutes. Control group consisted of rats unilaterally injured using a microscissor, and gelfoam with normal saline was applied on the injured area. Following sacrifice, the larynxes were carefully dissected and removed for histopathologic examination. After excised larynx experiments, serial sections were prepared from vocal fold. Hematoxylin eosin and immunohistochemical staining were done for epithelial growth factor receptor (EGFR), fibroblast growth factor receptor (FGFR1), and vascular endothelial growth factor (VEGF) staining for histopathologic examinations. RESULTS: There was not a significant difference between the two groups for lymphocyte. Although collagen and VEGF were higher in the study group, there was not a significant difference between the groups (P > 0.05). There was a significant difference between control and study groups for EGFR and FGFR1(P < 0.05). CONCLUSIONS:PRP has beneficial effects on wound healing. PRP accelerates epithelization of injured rat vocal folds by inducing EGFR secretion. PRP is an autogenous, reliable, low side-effect profile, easily harvested material. PRP may be useful to prevent scar formation. Copyright Â
Authors: Laszlo Peter Ujvary; Cristina Maria Blebea; Maximilian George Dindelegan; Cristina Tiple; Bogdan Sevastre; Alma Aurelia Maniu; Magdalena Chirilă; Marcel Cosgarea Journal: Acta Cir Bras Date: 2022-04-08 Impact factor: 1.388
Authors: Domen Vozel; Darja Božič; Marko Jeran; Zala Jan; Manca Pajnič; Ljubiša Pađen; Nejc Steiner; Veronika Kralj-Iglič; Saba Battelino Journal: Front Bioeng Biotechnol Date: 2021-07-07