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90 Cards in this Set
- Front
- Back
dopamine synthesis locations
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midbrain, corpus straitum, pars compacta, VTA
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Serotonin low levels
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depression, OCD, Panic, and Bulimia
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Serotonin high levels
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Anxiety, insomnia, sexual dysfunction, GI disturbance, serotonin sydrome, cardiac valce pathology
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Serotonin syndrome
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fever, tremor, coma, seizures, death
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dopamine secreting cells
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some make also NE
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NE
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attention, motivation, pleasure, reward
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DA
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Alertness and energy
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5-HT
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Obsessions and compulsions
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Mood
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NE, DA, and 5-HT
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Anxiety
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DA and 5-HT
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D2 and D4
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inhibitory
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D1
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excitatory
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NE levels
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same for all of us, receptors are variable
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NO
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retrograde messenger
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NO drugs
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Viagra and sunadafil increase levels
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NO synthesis
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at post-synaptic neuron
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NO purpose
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feedback process, down regulate
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Brain disorder pathology
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start early in life, need a lot of damage for clinical symptoms
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Epilepsy
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having two or more seizures
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Epilepsy tests
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EEG and brain scan
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Epilepsy cause
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sustained repetitive firing of APs
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Epilepsy factors
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genetic and acquired, cerebral trauma, infx, tumor, congenital malformation, metabolic
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Epilepsy focal
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within one area, majority of patients
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Epilepsy generalized
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All over the brain
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Epilepsy brain sites
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areas susceptible to attacks
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Temporal lobe epilepsy
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most common form of dz, dentate gyrus initiates seizure
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Voxel-based morphometry
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allows investigation of focal differences in brain anatomy
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Temporal lobe epilepsy, VBM
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hippocampal atrophy with seizures originating in left or right lobe
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Epileptogenesis
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excessive excitation or reduced inhibition, or channelopathy
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SUDEP
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Sudden Unexpected Death in Epilepsy
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SUDEP occurance
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more likely if seizures are more frequent or tx is inadequate
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SUDEP most cases
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from a Grand Mal Seizure
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SUDEP cause
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apnea or asystole
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Schizophrenia symptoms
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positive, negative, and cognitive
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Schizophrenia positive symptoms
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hallucinations, delusions, racing thoughts
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Schizophrenia negative symptoms
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apathy, lack of emotion, poor or nonexistant social functioning
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Schizophrenia cognitive symptoms
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disorganized thoughts, difficulty concentrating and/or following instructions, difficulty completing tasks, memory problems
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Schizophrenia theory
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caused by development and plasticiy disorder with risk genes
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Risk genes
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dysbinidin, neuroregulin 1, DISC1, COMT
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Dysbindin
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dystrobrevin-binding protein 1, is a protein constituent of the dystrophin-associated protein complex
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DISC1
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disruptive in schizophrenia gene, participates in cell growth, movement, axonal growth and transport, neural positioning.
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COMT
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Catechol-O-methyl transferase, degrade catecholamines such as dopamine, epinephrine, and norepinephrine
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neuregulin 1
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heightened expression of the Type IV NRG1
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Schizophrenia and ventricles
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enlarged lateral ventricles, empendymal or spiny cells lost
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Schizophrenia etiology
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Epigenetic dysfunction, Risk gens, rubella, influenza, herpes, toxoplasma gondii, hypoxia, malnutrition, OB complication, premature/low birth weight, preclampsia, and C-section
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Toxoplasma gondii
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from cats, can cross placenta
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ADHD
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a neurodevelopmental problem
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ADHD presentaion
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age-inappropriate symptoms of inattention,impulsivity and hyperactivity
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ADHD brain abnormalities
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frontal and temporal lobes and basal ganglia
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ADHD neurobiology
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hypoactive frontal-striatal region due to deficient DA transmission
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Depression symptoms/signs
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anhedonia, vague aches and pains, insomnia or hypersomina, weight loss/gain, low energy and fatigue, and recurrent thought of death/suicide
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Dysthymia
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depressed all the time
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Psychotic depression
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delusions, beliefs, and feelings that are untrue/unsupported. Bipolar may experience during depressed state
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Reactive depression
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adjustment disorder with depressed mood response to a psychosocial stressor
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Atypical depression
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able to experience improved mood via a positive event
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Melancholic depression
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inability to find pleasure in a positive things, combined with physical agitation, insomnia, or a decreased appetite
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Depression etiology
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genetics, emotional trauma and viral infx, stress(HPA axis) and cytokines, and signaling pathways that regulate neuro-plasticity
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Neuroplasticity
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changes that occur in the organization of the brain as a result of experience
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HPA axis and depression
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high levels of cortisol cause depression
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Subventricular zone
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neurogenesis, olfactory
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Subgranular zone
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neurogenesis hippocampus
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Seasonal affective disorders
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imbalance between sleep/wake cylce and brain cycle
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Seasonal affective disorders etiology
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dysregulation of 5-HT transmission and mutations
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TPH2
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rate limiting enzyme, 80% reduction in enzymatic activity if mutated
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hTPH2
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loss-of-f(x) mutation, seen in unipolar depression
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treatment resistant depression
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common occurrence
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OCD etiology
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rouge genes, head injury, autoimmune reaction
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Sydenham's chorea
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suffer from antibodies for Gram + bacteria, and show disorders of hand face feet. Treated with antibiotics
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PANDAS
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Pediatric Autoimmune Neuropsychiatric Disorders Associated with Streptococcus
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Sydenham's chorea antibodies
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against strep and attack neurons of caudate nucleus
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Molecular mimicry
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same biochemical sign as illness and body attack both exogenous agent and own self
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Molecular mimicry example
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SLE and NMDA receptors
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Tourette Syndrome presentation
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multiple tics and one or more vocal tics
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GTS causes
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childhood tics
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GTS population
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more common in males than females
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GTS etiology
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genetic, Panda, other viral
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Simple GTS
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motor and vocal tics
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Full Blown GTS
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coprolalia, copropraxia, echolalia, echopraxia
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coprolalia
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obscene/vulgar sounds
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corpropraxia
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obscene/vulgar movements
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echolalia
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imitation of sounds
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echopraxia
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imitation of movements
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Polyglutamate pathogenesis
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nine neurodegenerative disorders by expanding CAG repeats
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Huntington Pathology
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striatal cell die, motor cortex becomes hyperactive
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Huntingons mutation
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huntingtin on end of chromosome 4, Autosomal dominant
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CAG repeats normal
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10-29, and a few tieh 30--35
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CAG repeats in HD
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40-60
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HD appearance
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atrophy of caudate nucleus, putamne, hydrocephalus ex vacuo (anterior horns)
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HD slide
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GFAP shows gliosis
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HD protein
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mutant protein aggregates and is toxic to neurons
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