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Abstract

Volume 19, Issue 3 (May 2017) 19, 298–302; DOI:10.4103/1008-682X.175780

Cavernous nerve reconstruction with autologous vein graft and platelet‑derived growth factors

Xie‑Gang Ding, Shi‑Wen Li, Xin‑Min Zheng, Xing‑Huan Wang, Yi Luo

Department of Urology, Zhongnan Hospital, Wuhan University, Wuhan 430071, China

Correspondence: Dr. SW Li (drlishiwen@sina.com)

Date of Submission 12-Jun-2015 Date of Decision 11-Sep-2015 Date of Acceptance 23-Nov-2015 Date of Web Publication 04-Mar-2016

Abstract

In this study, we investigated the feasibility of using autologous vein graft and platelet-derived growth factors to bridge transected cavernous nerve in a rat model. A short defect in the bilateral cavernous nerve was created and repaired with vein graft from the right jugular vein or vein graft plus platelet-derived growth factors. The 32 rats were divided into four groups, namely Group 1 - no repair as a negative control, Group 2 - vein graft alone, Group 3 - vein graft plus platelet-derived growth factors, and Group 4 - sham operation as a positive control. We evaluated nerve regeneration and functional recovery using retrograde tracing study with FluoroGold, Toluidine blue staining of cavernous nerve, and the intracavernous pressure at 3 months. Three months after surgery, rich FluoroGold-positive cells were observed in the sham and vein graft plus platelet-derived growth factors group, but very few were found in the no repair group. The number of myelinated axons of regenerated cavernous nerve and intracavernous pressure were increased obviously in the two vein graft groups, especially in the vein graft plus platelet-derived growth factors group. These findings confirm the feasibility of using autologous vein as guides for cavernous nerve regeneration, and the regeneration can be further enhanced when the vein is filled with platelet-derived growth factors.

Keywords: cavernous nerve; nerve regeneration; platelet-rich plasma; vein graft

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Asian Journal of Andrology CN 31-1795/R ISSN 1008-682X  Copyright © 2023  Shanghai Materia Medica, Chinese Academy of Sciences.  All rights reserved.