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El bezafibrato prolonga la hipotermia inducida por un agonista del receptor de adenosina A en ratones CBA/N
Miho Sato-Hashimoto1, Hiroshi Ohnishi2,3
1Department of Animal Pharmaceutical Science, School of Pharmaceutical Sciences, Kyushu University of Medical Science.
The Journal of veterinary medical science
|February 11, 2026
Resumen
Los bezafibratos (BZ) mejoran los efectos hipotérmicos de los agonistas de los receptores de adenosina en ratones. Este pretratamiento prolonga las bajas temperaturas corporales y reduce el gasto de energía, lo que sugiere una relación sinérgica entre las vías PPARα y A1AR.
Área de la Ciencia:
- Fisiología Fisiología Fisiología.
- Farmacología Farmacología.
- La investigación en el metabolismo.
Sus antecedentes:
- La termorregulación y la hipotermia son críticas en los homeotérmicos.
- Los receptores de adenosina A1 (A1AR) están implicados en el control de la temperatura corporal.
Objetivo del estudio:
- Investigar los efectos combinados de los bezafibratos (BZ) y un agonista A1AR en la termorregulación.
- Explorar la posible relación sinérgica entre PPARα y A1AR en la modulación de la hipotermia.
Principales métodos:
- Los ratones fueron pretratados con alimentos suplementados con BZ, un agonista del receptor activado por el proliferador de peroxisomas α (PPARα).
- La hipotermia fue inducida usando el agonista A1AR N6-ciclohexiladenosina (CHA).
- Se monitorearon la temperatura corporal, el consumo de oxígeno, la producción de dióxido de carbono y el gasto energético.
Principales resultados:
- El pretratamiento con BZ prolongó significativamente la duración de la hipotermia inducida por CHA (baja temperatura corporal <33°C) de menos de 1 hora a 6 horas.
- El tratamiento combinado condujo a una disminución del consumo de oxígeno, la producción de dióxido de carbono y el gasto energético en comparación con el CHA solo.
- La activación de PPARα inducida por BZ aumentó la sensibilidad de A1AR, prolongando la hipotermia.
Conclusiones:
- La activación de PPARα potencia los efectos hipotérmicos mediados por el A1AR.
- Se sugiere una relación sinérgica entre PPARα y A1AR en el control del torpor y la hibernación.
- La activación metabólica del catabolismo lipídico a través de la señalización de PPARα puede mejorar la hipotermia inducida por A1AR.
Palabras clave:
El receptor de adenosina A1 (A1AR) eshipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, hipotermia, cualquiera de lasmetabolismo de los lípidos.El receptor activado por el proliferador del peroxisoma α (PPARα)Torpor es el nombre de Torpor.Más Videos Relacionados
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