Lecture 29 - menopause Flashcards
What is menopause
Ovaries running out of follicuels occurs between 50-52 years
Last menstrual bleed signified end of reproductive life
-age has not changed over the past few years
Primary ovarian failure
Ovarian failure under the age of 40 years
affects 1% of women
What happens when you get older?
Get less and less follicule but also get an increase in fsh to try and stimulate the last few follicules to develop (but ones earlier in life will be better)
-optimal fertility in 20s
timing of menopause
- poorly nourished women have earlier menopause
- women who smoke aslo have earlier
- parity, marital status and age of menarche does not appear to influence timing of menopause
- mothers and daughters have a similar age at menopause
Phases that occur with menopause
Pre menopause (40)
- regular menstrual cycles
- menopausal transition (6-8 years) 46 - Become more irregular, and less cycles
- Post menopause - then around 50-52 get last menstruation
- Ovarian senesce- after
Perimenopause - time around menopause up until features are not seen anymore
Perimenopausal changes
- Hormone fluctuations start at the begging of menopause and continue through to ovarian senscence
- climateric - physical and emotional symptoms associated with perimenopause
Events - follicules reduce belo a critical thershold
- inhibin B levels decline 0 negative feedback on fsh drops - so this rices
- and acceleration of follicule loss, shroten follicualr phase, increase early follicular oestrogne
Features of perimenopuase
irregular cycles annovulation cycles common fsh elevated oestrogen levels high or low unpredictable hormone patterns conception is difficult
-from time of erratic hormone fluctuations which starts at begining of menopause to ovarian senescene
Post menopause oestrogen
- no longer get oestrogen beign produced much at all - very low levels
Oestradiol - decreases
Oestrone - decreases but not as much, and is main source
fatty tisues produce oestrone - and ovary secretes estrogiol however now we dont get the estrodiol secretion
-most symptoms are due to reduced amount of oestorgen produced
Symptoms
hot flushes, night sweats
- vaginal driness
- reduce breast density
- osteoporosis
Hormone treatment therapy
-most of the symptoms of menopause can be prevented or arrested by oestrogen treatment