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Congreso Nacional de Ciencia y Tecnología – APANAC
Article . 2021 . Peer-reviewed
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Estandarización de modelo de perfusión renal en ratones

Authors: Yángüez, Karen; Díaz, Maricselis; Morán, Juan; Mero, Aldahir; Chérigo, Katherine; Aizprúa, Betsy; Navarro, Alireya; +4 Authors

Estandarización de modelo de perfusión renal en ratones

Abstract

La técnica de riñón ex vivo permite valorar la respuesta renal intrínseca permitiendo que las variables experimentales puedan ser controladas por el investigador. En los laboratorios del CIPFAR trabajamos para poner a punto el modelo de riñón aislado y perfundido, para lo cual empleamos ratones C57BL/6 y CD-1 machos. Realizamos laparatomía abdominal, localizamos y ligamos la sección aórtica, seguidamente, realizamos una incisión en la arteria renal izquierda e introdujimos una cánula acoplada a un microtubo de polietileno. A través de la cánula, los riñones aislados son conectados a un sistema de perfusión y expuestos a los contracturantes KCl (80mM) y fenilefrina (FE 10-5 M). También obtuvimos curvas concentración respuesta frente a acetilcolina (ACh 10-8–10-4M). Nuestros resultados revelan valores de presión basal de 36.8 ± 4.8 mmHg y 30.7 ± 14.2 mmHg para las cepas CD-1 y C57BL/6, respectivamente. La despolarización con KCl desarrolló un efecto contracturante máximo de 25.7 ± 16.0 mmHg para CD-1 y 63.8 ± 34.8 mmHg en ratones C57BL/6. El agente adrenérgico FE, produjo contracciones máximas de 53.0 ± 29.6 mmHg en CD-1 y 66.1 ± 4.7 mmHg en C57BL/6. El efecto vasodilatador máximo inducido por ACh fue de 35.7 % ± 3.5 y 46.9 % ± 18.7 en CD-1 y C57BL/6, respectivamente.A la luz de este resultado, tanto el tiempo de exposición, la manipulación excesiva, la perfusión inadvertida de burbujas y la formación de coágulos, pueden ser factores que disminuyan la viabilidad del endotelio renal. En cualquier caso, los datos de perfusión basal, así como la reactividad frente a agentes contracturantes son pruebas de la viabilidad del tejido en ambos grupos de animales.

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
Green
hybrid