Histopathological and Ultrastructural Changes after Electroporation in Pig Liver Using Parallel-Plate Electrodes and High-Performance Generator View Full Text


Ontology type: schema:ScholarlyArticle      Open Access: True


Article Info

DATE

2019-12

AUTHORS

B. López-Alonso, A. Hernáez, H. Sarnago, A. Naval, A. Güemes, C. Junquera, J. M. Burdío, T. Castiella, E. Monleón, J. Gracia-Llanes, F. Burdio, E. Mejía, O. Lucía

ABSTRACT

Irreversible electroporation (IRE) has gained attention as a new non-thermal therapy for ablation with important benefits in terms of homogeneous treatment and fast recovery. In this study, a new concept of high voltage generator is used, enabling irreversible electroporation treatment in large tissue volume using parallel plates. Unlike currently available generators, the proposed versatile structure enables delivering high-voltage high-current pulses. To obtain homogeneous results, 3-cm parallel-plates electrodes have also been designed and implemented. IRE ablation was performed on six female pigs at 2000 V/cm electric field, and the results were analysed after sacrifice three hours, three days and seven days after ablation. Histopathological and ultrastructural studies, including transmission and scanning electron microscopy, were carried out. The developed high-voltage generator has proved to be effective for homogeneous IRE treatment using parallel plates. The destruction of the membrane of the hepatocytes and the alterations of the membranes of the cellular organelles seem incompatible with cell death by apoptosis. Although endothelial cells also die with electroporation, the maintenance of vascular scaffold allows repairing processes to begin from the third day after IRE as long as the blood flow has not been interrupted. This study has opened new direction for IRE using high performance generators and highlighted the importance of taking into account ultrastructural changes after IRE by using electron microscopy analysis. More... »

PAGES

2647

Identifiers

URI

http://scigraph.springernature.com/pub.10.1038/s41598-019-39433-6

DOI

http://dx.doi.org/10.1038/s41598-019-39433-6

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1112362611

PUBMED

https://www.ncbi.nlm.nih.gov/pubmed/30804395


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RDF/XML is a standard XML format for linked data.

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