Keynote presentation: the pharmacology of drug addiction
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Transcript of Keynote presentation: the pharmacology of drug addiction
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Drogas de abuso Drogas de abusoJorge Hernán Ramírez. MD, MSc, PhD
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Contenidos
• Definición de adicción
• Mecanismos de adicción
• Criterios de adicción
• Tipos de sustancias de abuso
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ADICCION
Desorden crónico y recurrente en el que la búsqueda y consumo
compulsivo de psicofármacos persiste sin importar las serias
consecuencias negativas que acompañan su uso.
Teorías de adicción
• “Liking” ------ “Wanting”
• Deficits en la corteza prefrontal
• Factores ambientales – geneticos
• Factores propios de la sustancia de abuso
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ADICCION Dependencia a sustancias
• Síntomas de tolerancia.
• Síntomas de retirada.
• Uso de una sustancia a mayores dosis y por periodos mas largos de lo planeado.
• Deseos infructuosos de suspender o reducir su uso.
• Gastar considerable tiempo y esfuerzo (y…. Dinero!) en conseguir la sustancia.
• Reducción en actividades sociales, ocupacionales o recreacionales por consumir la sustancia.
• Continuar el uso de la sustancia pese a los problemas sociales, económicos o de salud que acompañan su uso.
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ADICCION
• Mecanismos de tolerancia
• Cambios fisiológicos y estructurales con el abuso de sustancias
• “Priming” Recaida!!
• “Craving”
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Circuito de recompensa cerebral
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Misuse of Drugs Act Classification
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Nutt D, et al. The Lancet.
Mean independent group scores in each of the three categories of harm, for 20 substances, ranked by their overall score, and mean scores for each of the three subscales
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Nutt D, et al. The Lancet.
Mean independent group scores in each of the three categories of harm, for 20 substances, ranked by their overall score, and mean scores for each of the three subscales
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OPIOIDES
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Nutt D, et al. The Lancet.
Mean independent group scores in each of the three categories of harm, for 20 substances, ranked by their overall score, and mean scores for each of the three subscales
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INTOXICACION POR COCAINA
SINTOMAS • Ansiedad, delirios, alucinaciones, convulsiones • Cefalea • Midriasis • Taquicardia • Palidez
COMPLICACIONES • ACV - HSA • Rabdomiolisis • Isquemia aguda de miembros inferiores (EVPA) • Infarto • Arritmias
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Nutt D, et al. The Lancet.
Mean independent group scores in each of the three categories of harm, for 20 substances, ranked by their overall score, and mean scores for each of the three subscales
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Nutt D, et al. The Lancet.
Mean independent group scores in each of the three categories of harm, for 20 substances, ranked by their overall score, and mean scores for each of the three subscales
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ALCOHOL• Muy hidrosoluble
• Altisima absorción
• Aumenta GABA - Reduce glutamato
• Mecanismo de adicción: reducción crónica de GABA y aumento crónico de glutamato... Explicación del Delirium tremens
• Tratamiento de alcoholismo
• Mecanismos de tolerancia:NaturalMetabólicafuncional
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Nutt D, et al. The Lancet.
Mean independent group scores in each of the three categories of harm, for 20 substances, ranked by their overall score, and mean scores for each of the three subscales
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KETAMINA
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Mecanismo de acción de la ketamina
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Nutt D, et al. The Lancet.
Mean independent group scores in each of the three categories of harm, for 20 substances, ranked by their overall score, and mean scores for each of the three subscales
![Page 36: Keynote presentation: the pharmacology of drug addiction](https://reader030.fdocuments.in/reader030/viewer/2022032616/55a732861a28ab76028b471d/html5/thumbnails/36.jpg)
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Nutt D, et al. The Lancet.
Mean independent group scores in each of the three categories of harm, for 20 substances, ranked by their overall score, and mean scores for each of the three subscales
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Campañas antitabaco
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Nutt D, et al. The Lancet.
Mean independent group scores in each of the three categories of harm, for 20 substances, ranked by their overall score, and mean scores for each of the three subscales
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Marihuana
Canabinoides
Receptor de anandamida
THC
+
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Marihuana
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Potenciales Usos de la Marihuana
• Analgésico
• Espasmolitico
• Enfermedades neurodegenerativas
• Accidente cerebrovascular
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Nutt D, et al. The Lancet.
Mean independent group scores in each of the three categories of harm, for 20 substances, ranked by their overall score, and mean scores for each of the three subscales