lecture 9 drugs Flashcards
iatrogenic illness
caused by doctors
osteoblast
makes bone
osteoclast type of cell
multinucleate
osteoclast function
breaks down bone
what regulates osteoclast production
osteoblasts
what is OPG produced by
osteoblasts or stromal cells
how do osteoclasts do their job
attatch to the bone and make a cieling zone and release protons and lysozymes and make a destructive environment
what happens when bone is cleaved
calcium is released
what is bisphosphate based on
pyrophosphate
what does bisphosphate bind to
calcium
what part of bisphosphate binds to calcium
two phosphate groups
how do bisphosphates work
increase the apoptic rate of osteoclasts and blocks the production of them
second generation of bisphosphonates
alendronate
first generation of bisphosphonates
etidronate
what type of bisphosphonate is nitrogen containing
alendronate
facts about nitrogen containing
more potent
but patients dont tolerate as well
bad side effect of nitrogen containing bisphosphonate
jaw necrosis
how might bisphosphonates help with cancer
stopping metastasis
raloxafen is a
SERM
what is SERM
selective oestrogen receptor modulator
risks of HRT to women
breast and ovrian cancer
what responds to high calcium in the blood
thyroid
what does the thyroid produce in response to high calcium in the blood
calcitonin
what responds to low calcium in the blood
parathyroid hormone