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Rev. esp. cir. ortop. traumatol. (Ed. impr.) ; 58(4): 201-205, jul.-ago. 2014.
Article in Spanish | IBECS | ID: ibc-125034

ABSTRACT

Objetivo. Investigar los mecanismos moleculares de respuesta tisular tras el tratamiento con la técnica Electrólisis Percutánea Intratisular (EPI®) en la tendinosis inducida por colagenasa tipo i en ratas Sprague Dawley. Métodos. En una muestra de 24 ratas Sprague Dawley de 7 meses de edad y 300 g se indujo tendinosis mediante la inyección en el tendón rotuliano de 50 μg de colagenasa tipo i . Se procedió a dividir la muestra en 4 grupos: un grupo control, un grupo colagenasa y 2 grupos de tratamiento con técnica EPI® a 3 y 6 mA, respectivamente. Se aplicó una sesión de tratamiento EPI® y tras 3 días se procedió al análisis de los tendones mediante técnicas de inmunodetección y electroforesis. Se analizaron las proteínas citocromo C, Smac/Diablo, factor de crecimiento endotelial vascular y su receptor 2. También se analizó el factor de transcripción nuclear peroxisoma proliferador activado del receptor gamma. Resultados. Se observó un aumento estadísticamente significativo en la expresión del citocromo C, Smac/Diablo, factor de crecimiento endotelial vascular, su receptor 2 y peroxisoma proliferador activado del receptor gamma en los grupos a los que se les aplicó la técnica EPI® respecto al grupo control. Conclusiones. La técnica EPI® produce, en la lesión tendinosa inducida con colagenasa tipo i en ratas, un aumento de los mecanismos moleculares antiinflamatorios y angiogénicos (AU)


Objective. To investigate the molecular mechanisms of tissue response after treatment with the Intratissue Percutaneous Electrolysis (EPI®) technique in collagenase-induced tendinopathy in Sprague-Dawley rats. Methods. Tendinopathy was induced by injecting 50 μg of type i collagenase into the patellar tendon of 24 Sprague Dawley rats of 7 months of age and weighting 300 g. The sample was divided into 4 groups: the control group, collagenase group, and two EPI® technique treatment groups of 3 and 6 mA, respectively. An EPI® treatment session was applied, and after 3 days, the tendons were analysed using immunoblotting and electrophoresis techniques. An analysis was also made of cytochrome C protein, Smac/Diablo, vascular endothelial growth factor and its receptor 2, as well as the nuclear transcription factor peroxisome proliferator-activated receptor gamma. Results. A statistically significant increase, compared to the control group, was observed in the expression of cytochrome C, Smac/Diablo, vascular endothelial growth factor, its receptor 2 and peroxisome proliferator-activated receptor gamma in the groups in which the EPI® technique was applied. Conclusions. EPI® technique produces an increase in anti-inflammatory and angiogenic molecular mechanisms in collagenase-induced tendon injury in rats (AU)


Subject(s)
Animals , Female , Rats , Electrolysis/instrumentation , Electrolysis/methods , Electrolysis , Tendinopathy/radiotherapy , Tendinopathy , Guided Tissue Regeneration/methods , Guided Tissue Regeneration , Guided Tissue Regeneration/veterinary , Electrolysis/veterinary , Administration, Cutaneous , Regeneration/physiology , Angiogenesis Inhibitors/therapeutic use
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