Behavioral Week 3 +4 Flashcards
What is the definition of Obesity?
- More than 20% over ideal weight
- BMI >30
2 Genetic mutations associated w/ obesity
- Leptin receptor
- Melanocortin 4 receptor
What drug class can cause weight gain?
Antipsychotics (D2 receptor, 5HT2c blockade –> increased prolactin)
Amphetamine mechanism for obesity
Decrease appetite
Orlistat mechanism:
Lipase inhibitor
Topiramate/Phentermine combo mechanism:
Improves carb metabolism, less gluconeogenesis, appetite suppressant
Naltrexone/Bupropion combo mechanism:
Dampens reward of eating, appetite suppressant
Lorcaserin mechanism:
5HT2c receptor stimulator –> increase metabolism, lessen tendency to store fat, improve leptin sensitivity?
Anorexia Nervosa DSM-5 Criteria
- Refusal to maintain 85% of typical weight
- Restricting energy intake
- Fear of gaining
- Body dysmorphism
- Restricting vs Binge/Purge type
- Severity based on BMI
Age and Gender pattern in Anorexia:
- Start mid-teen to 20s
- Female > male (20:1)
What is lanugo hair?
- Fine, white hair
- Seen with anorexia
Bulimia Nervosa DSM-5 Criteria
- Recurrent binge eating = eating a lot in discrete period of time disproportionate to typical eating
- Purging vs. non-purging type
- 1x/week for 3+ months
- Compensatory behaviors necessary for diagnosis
Age and Gender pattern in Bulimia:
- Later onset than anorexia
- Female > male (10:1)
Bulimia characteristics compared to Anorexia:
- Greater prevalence
- More personality disorder
- More substance abuse
What are physical symptoms of Bulimia?
- Poor dentition, enamel loss, cavities
- Abraided knuckles = Russell’s sign
- Salivary enlargement
Name for milder versions of Anorexia and Bulimia
Mild anorexia = Avoidant/Restrictive Food Intake Disorder
Mild bulimia: Binge Eating Disorder
Pharmacotherapy can be used for what eating disorder? What drug class is most commonly used?
- Bulimia Nervosa
- SSRIs
What is Capgras Delusion?
Thinks someone has been replaced by an imposter
What is Fregoli Delusion?
Thinks different people are a single person who changes apperance or is in disguise
What is Vampirism?
Thinks that oneself is a vampire
What is Lycanthropy?
Thinks that oneself is a werewolf
Psychopathic Cannibalism is associated with what disorders?
- Antisocial personality
- Psychopathy
- Sociopathy
- with delusions…
What is Shared Delusion Disorder?
Most common version?
-1st person has a psychotic symptom and passes it on to others who develop the symptoms (not necessarily psychotic)
What is conversion disorder?
-Neurologic disorder induced by stress
What is Cotard’s Delusion
Thinks that oneself is dead, does not exist, or is missing organs
What is Morgellons/Delusional Parasitosis?
Believes they are infested, and can see or feel parasites in or on them
What is Erotomanic Delusions?
Thinks another person, usually a stranger, is in love with him/her
What is the neurobiologic basis of Delusions?
Too much DA activity in Mesolimbic area like in Schizophrenia
Normal Age-associated cognitive changes
- Difficulty retreiving words and names
- Slower processing speed
- Difficulty sustaining attention
- More effort to learn
- No functional impairment
Mild Cognitive Impairment definition
- Memory complain corroborated by an informant
- Objective memory impairment for age and education
- Preserved general cognition
What is Amnestic MCI
- Memory loss not meeting criteria for dementia
- But 10-15% progression to AD
- Earliest phase of AD?
Chromosomes and Genes associated w/ Early-Onset AD
1–Presenilin 2
14–Presenilin 1
21–Amyloid Precursor Protein (APP)
Chromosome and gene associated w/ Late-Onset AD
19–ApoE4 gene
Neuropathologic findings of AD:
- gross cerebral atrophy
- B amyloid plaques
- Amyloid angiopathy
- Neurofibrillary tangles and neuropil threads