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19 de abril de 2024
¡SONRÍAN!
Hallan una relación entre la hormona del buen humor y la memoria lunes 14 de mayo de 2018 16:11 La hormona que regula el buen humor, la serotonina, podría tener un rol en la memoria.
Parece que tomarse las cosas de manera más liviana y promover un buen estado de ánimo tendrías muchos más beneficios de los que se conocen. Entre ellos tener buena memoria.
Es que la hormona que regula el buen humor, la serotonina, podría tener un rol en la memoria, según un estudio realizado en animales y publicado en la revista especializada Neuron.
El hipocampo es una zona del cerebro que desarrolla un rol vital para la memoria, sobre todo en el "almacenamiento" de los recuerdos a largo plazo. Una región del hipocampo -llamada CA1- es especialmente importante, y cuando esta área resulta dañada se observa un cambio en el aprendizaje.
Para examinar la función, científicos de la Columbia University Irving Medical Center de la ciudad de Nueva York estudiaron el cerebro de ratones utilizando optogenética, una técnica que permite apagar y encender las neuronas usando impulsos de luz.
De esta manera descubrieron que cuando se liberaba la hormona del "buen humor", la comunicación neuronal en el área CA1 del hipocampo era más fuerte. Y su efecto era el de mejorar la memoria espacial de los ratones, o bien la capacidad de recordar los lugares donde habían estado.
En cambio, cuando la liberación de serotonina era bloqueada artificialmente la memoria espacial estaba comprometida. Por lo que los investigadores concluyeron que idear un fármaco que potencie la actividad serotoninérgica de estos receptores podría ayudar a aumentar los recuerdos.
(Télam)