Stem cells in end-to-side neurorrhaphy. Experimental study in rats

Abstract Purpose: To evaluate the influence of mesenchymal stem cells from adipose tissue in the end-to-side neurorrhaphy, focusing in the nerve regeneration and the muscle reinnervation in acute trauma. Methods: 140 animals were randomly divided in seven groups: control, denervated, end-to-side n...

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Main Authors: Geruza Rezende Paiva, Fausto Viterbo, Elenice Deffune, Maria Aparecida Domingues Custódio
Format: Article
Language:English
Published: Sociedade Brasileira para o Desenvolvimento da Pesquisa em Cirurgia 2021-01-01
Series:Acta Cirúrgica Brasileira
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502020001200206&tlng=en
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author Geruza Rezende Paiva
Fausto Viterbo
Elenice Deffune
Maria Aparecida Domingues Custódio
author_facet Geruza Rezende Paiva
Fausto Viterbo
Elenice Deffune
Maria Aparecida Domingues Custódio
author_sort Geruza Rezende Paiva
collection DOAJ
description Abstract Purpose: To evaluate the influence of mesenchymal stem cells from adipose tissue in the end-to-side neurorrhaphy, focusing in the nerve regeneration and the muscle reinnervation in acute trauma. Methods: 140 animals were randomly divided in seven groups: control, denervated, end-to-side neurorrhaphy between distal stump of common peroneal nerve and tibial nerve (ESN), ESN wrapped in fascia, ESN wrapped in fascia and platelet gel, ESN wrapped in platelet gel, ESN wrapped in fascia and platelet gel within stem cells (without culture) removed from the adipose tissue. Mass measurements of the animal and of cranial tibial muscles, electromyography, walking track analysis tests and histological examinations of the nerves and muscles after 180 days was performed. Results: In the groups where the ESN was performed, the results were always better when compared to the denervated group, showing reinnervation in all ESN groups. The most sensitive methods were walking track and histological analysis. Only the group with stem cells showed values similar to the control group, as well as the functional indices of peroneal nerve and the number of nerve fibers in the peroneal nerve. Conclusions: Stem cells were effective in ESN according with the functional index of the peroneal nerve, evaluated by walking track analysis and the number of nerve fibers in the peroneal nerve.
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spelling doaj.art-adb8ec758a034c65b950f7db232bf5d12022-12-21T18:41:46ZengSociedade Brasileira para o Desenvolvimento da Pesquisa em CirurgiaActa Cirúrgica Brasileira0102-86502021-01-01351210.1590/acb351207Stem cells in end-to-side neurorrhaphy. Experimental study in ratsGeruza Rezende Paivahttps://orcid.org/0000-0001-8397-8300Fausto Viterbohttps://orcid.org/0000-0001-7282-7566Elenice Deffunehttps://orcid.org/0000-0002-0533-3248Maria Aparecida Domingues Custódiohttps://orcid.org/0000-0002-4023-3410Abstract Purpose: To evaluate the influence of mesenchymal stem cells from adipose tissue in the end-to-side neurorrhaphy, focusing in the nerve regeneration and the muscle reinnervation in acute trauma. Methods: 140 animals were randomly divided in seven groups: control, denervated, end-to-side neurorrhaphy between distal stump of common peroneal nerve and tibial nerve (ESN), ESN wrapped in fascia, ESN wrapped in fascia and platelet gel, ESN wrapped in platelet gel, ESN wrapped in fascia and platelet gel within stem cells (without culture) removed from the adipose tissue. Mass measurements of the animal and of cranial tibial muscles, electromyography, walking track analysis tests and histological examinations of the nerves and muscles after 180 days was performed. Results: In the groups where the ESN was performed, the results were always better when compared to the denervated group, showing reinnervation in all ESN groups. The most sensitive methods were walking track and histological analysis. Only the group with stem cells showed values similar to the control group, as well as the functional indices of peroneal nerve and the number of nerve fibers in the peroneal nerve. Conclusions: Stem cells were effective in ESN according with the functional index of the peroneal nerve, evaluated by walking track analysis and the number of nerve fibers in the peroneal nerve.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502020001200206&tlng=enStem CellsMicrosurgeryPeripheral NervesNerve RegenerationRats
spellingShingle Geruza Rezende Paiva
Fausto Viterbo
Elenice Deffune
Maria Aparecida Domingues Custódio
Stem cells in end-to-side neurorrhaphy. Experimental study in rats
Acta Cirúrgica Brasileira
Stem Cells
Microsurgery
Peripheral Nerves
Nerve Regeneration
Rats
title Stem cells in end-to-side neurorrhaphy. Experimental study in rats
title_full Stem cells in end-to-side neurorrhaphy. Experimental study in rats
title_fullStr Stem cells in end-to-side neurorrhaphy. Experimental study in rats
title_full_unstemmed Stem cells in end-to-side neurorrhaphy. Experimental study in rats
title_short Stem cells in end-to-side neurorrhaphy. Experimental study in rats
title_sort stem cells in end to side neurorrhaphy experimental study in rats
topic Stem Cells
Microsurgery
Peripheral Nerves
Nerve Regeneration
Rats
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-86502020001200206&tlng=en
work_keys_str_mv AT geruzarezendepaiva stemcellsinendtosideneurorrhaphyexperimentalstudyinrats
AT faustoviterbo stemcellsinendtosideneurorrhaphyexperimentalstudyinrats
AT elenicedeffune stemcellsinendtosideneurorrhaphyexperimentalstudyinrats
AT mariaaparecidadominguescustodio stemcellsinendtosideneurorrhaphyexperimentalstudyinrats