210 likes | 718 Views
schizophrenia. negative symptoms. positive symptoms. aggressive symptoms. anx/dep. cognitive symptoms. Stahl S M, Essential Psychopharmacology (2000). 10-1. Positive Symptoms of Schizophrenia. Negative Symptoms of Schizophrenia. Stahl S M, Essential Psychopharmacology (2000). 10-20.
E N D
schizophrenia negative symptoms positive symptoms aggressive symptoms anx/dep cognitive symptoms Stahl S M, Essential Psychopharmacology (2000) 10-1
Stahl S M, Essential Psychopharmacology (2000) 10-20 Functional Status 100% 50% 0 15 20 40 60 Age in years
Basal Ganglia Nucleus accumbens a Substantia nigra c b hypothalamus d Tegmentum Stahl S M, Essential Psychopharmacology (2000) 10-7 DOPAMINE PATHWAYS
Stahl S M, Essential Psychopharmacology (2000) 10-9 mesolimbic overactivity = positive symptoms of psychosis
Mesolimbic Dopaminergic Hyperactivity in Schizophrenia Laruelle et al., Ann NY Acad Sci (2003)
Relationship Between Affinity for Dopamine D2 Receptors and Daily Dose for Treating Schizophrenia
Stahl S M, Essential Psychopharmacology (2000) 10-11 primary dopamine deficiency D2 receptor blockade increase in negative symptoms secondary dopamine deficiency mesocortical pathway
Hypofunction of Mesocortical Dopaminergic Transmission in Schizophrenia Laruelle et al., Ann NY Acad Sci (2003)
Glutamate-Dopamine Interactions in Schizophrenia Takahata and Moghaddam, J Neurochem (2000)
Thesis- Dopamine Dysregulation in Schizophrenia • Mechanism Schizophrenia Sxs • 1. Hypoactivity of PFC Negative/Cognitive • DA Systems Sxs • 2. Hyperactivity of NAc Positive Sxs • DA Systems • 3. Neuroleptic induced Improves Positive Sxs DA blockade Worsens Negative Sxs