Endo Flashcards
Describe the signs and symptoms of menopause
change in menstrual cycle
vasomotor sxs (hot flashes, night sweats)
vulvovaginal sxs (dryness) => painful sex
sleep disturbances
weight gain - 5 lbs
menopause
stop period
after 12 months without period
perimenopause
1st signs of endocrine change
irregular period
ends 1 year after last period
natural/spontaneous menopause
12 months after last period confirmed
induced menopause
stopped periods manually
peri-menopause - menopause transition
starts when you see sxs
ends 12 months after last period
post-menopause
years after last period
bioidentical hormone therapy (BHT)
v similar to hormones of the body
estrogen therapy (ET)
unopposed estrogen for:
- systemic use for women without uterus
- local for women with dryness
estrogen-progestogen (EPT)
progestogen added to ET
protect women with uterus from endometrial cancer (estrogen can cause cancer)
FDA approved indications for HT
Vasomotor sxs
prevention of bone loss
premature estrogen loss
genitourinary sxs
How can contraceptives help with perimenopause symptoms?
less hot flashes more predictable period less cramps improve BMD decrease risk cancer
What is the physiological effect of PTH
Bone: increase expression and secretion of RANK ligand from osteoblasts
RANKL causes osteoclast formation => bone resorption
Kidney: decrease phosphate transporter => decrease phosphate uptake
What is the physiological effect of calcitonin
increases cAMP to inhibit osteoclasts
What is the physiological effect of vitamin D
Bone: osteoblasts have Vit D receptors. Cause blasts to make cytokines that activate clasts to resorb Ca which make blasts deposit Ca. BONE MOBILIZING ACTION
Kidney: increase Ca reabsorption
Intestine: Increase Ca absorption