The Differential Expression of N-cadherin in Vascularized and Nonvascularized Nerve Grafts: A Study in a Rat Sciatic Nerve Model
| Autor: | Satoshi Yurugi, Aya Tanaka, Mitsuo Hatoko, Masamitsu Kuwahara, Hideyuki Tada |
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| Rok vydání: | 2001 |
| Předmět: |
Male
Pathology medicine.medical_specialty Blotting Western Western blot Animals Medicine Rats Wistar Differential expression Control level medicine.diagnostic_test business.industry Cadherin Regeneration (biology) Anatomy Cadherins Sciatic Nerve Axons Nerve Regeneration Rats Plastic surgery surgical procedures operative Immunohistochemistry Surgery Sciatic nerve business |
| Zdroj: | Annals of Plastic Surgery. 47:322-327 |
| ISSN: | 0148-7043 |
| DOI: | 10.1097/00000637-200109000-00017 |
| Popis: | The authors investigated N-cadherin expression in vascularized and nonvascularized nerve grafts using a rat sciatic nerve model. The vascularized and nonvascularized nerve grafts were elevated, and then both nerves were sutured to the original site. At various periods after the operation, the entire graft was removed. N-cadherin expression was detected via Western blot analysis and histochemical staining using anti-N-cadherin antibody. In both grafts, the level of N-cadherin expression increased after the operation, but during postoperative weeks 6, 9, and 12, the level in the vascularized graft was significantly (p = 0.00023, 0.0018, and 0.0010, respectively) higher than that in the nonvascularized graft. At postoperative week 14, the level of both grafts returned to the control level. Histochemical findings showed that N-cadherin was expressed around the regenerated axons in both grafts, and the degree of regeneration was greater in the vascularized graft than in the nonvascularized graft. These results demonstrate that the expression of N-cadherin increases during the process of axonal regeneration in both grafts, and that the degree of the expression is augmented by vascularization of the nerve graft. |
| Databáze: | OpenAIRE |
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