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El papel de la dopamina en los pacientes no deprimidos con antecedentes de intento de suicidio

Published online by Cambridge University Press:  12 May 2020

W. Pitchot
Affiliation:
Unidad Psiquiátrica, CHU Sart Tilman, B-4000Lieja, Bélgica
M. Hansenne
Affiliation:
Unidad Psiquiátrica, CHU Sart Tilman, B-4000Lieja, Bélgica
M. Ansseau
Affiliation:
Unidad Psiquiátrica, CHU Sart Tilman, B-4000Lieja, Bélgica
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Resumen

Se dispone de varios datos sobre la implicación del sistema dopaminérgico en el control de la agresión dirigida hacia dentro. Propusimos anteriormente una implicación de la función dopaminér- gica D2 en la expresión de la conducta suicida demostrando una respuesta más pequeña de la hormona del crecimiento (HC) a la apomorfina, un agonista dopaminérgico, en pacientes deprimidos con antecedentes de intento de suicidio en comparación con pacientes que no habían intentado suicidarse. Para someter a prueba esta hipótesis, se midieron en el presente estudio las respuestas de la HC a la apo- morfina intravenosa en pacientes no deprimidos con antecedentes de intento de suicidio. El estudio se realizó en 17 pacientes varones no deprimidos con una puntuación inferior a 12 en la HAMD de 17 elementos. Se subagrupó a los pacientes según hubieran intentado suicidarse (N = 7) o no (N = 10). Las respuestas pico medias de la HC a la apomorfina difirieron significativamente entre los pacientes que habían intentado suicidarse y los que no: (media ± DT) para el pico de HC, 10,4 ± 8,2 ng/mL frente a 27,3 ± 13,1 ng/ml, F = 9,0, P= 0,009. En conclusión, las perturbaciones dopaminérgicas parecen desempeñar un papel en la biología de la agresión dirigida hacia dentro en los pacientes no deprimidos.

Type
Comunicación Breve
Copyright
Copyright © European Psychiatric Association 2002

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References

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