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12 Cards in this Set

  • Front
  • Back
site of control of appetite in brain
arcuate nucleus
synthesize & rls peptides
integrate info from periphery
grhelin
from intestine
stimulates appetite

increases NPY in brain
upregulated when on diet
rmv stomach, have less

prader willi
CCK
from intestine
signals satiety
short term reg
GLP 1
from intestine
signals satiety
short term regulation

released in proportion to amount of food
decreased in obese people
PYY
from intestine
signals satiety- suppress ghrelin (15 min into meal)
co-secreted w/GLP 1

short term regulation
short term regulators of satiety
CCK
GLP 1
PYY

no effect on adiposity
directs meal termination
long term regulation
leptin
adponectin
insulin
NPY

regulates energy homeostasis
leptin
fat cells
R's in hypothal

decreased Fat store to decrese leptin, increase appetite & metabolism

leptin stimulates AMPK

(obese ppl with higher levels)

protect against wt loss during starvation
Insulin
levels proportional to adipose tissues

R's saturable

direct inject to brain lose weight
Adiponectin
inhibit glucose synth in liver

(use more, store less)
NPY
gives signal to eat

decreases with increased leptin & insulin
POMC
proopiomelanocortins
family

limited to acruate nucleus

alpha MSH binds R to signal for reduced food intake

rats w/R defic are obese