Reproductive disorders Female Flashcards
LH and FSH levels in the early follicular phase is characterized by what?
Equal LH and FSH levels for the first 1-5 days after the beginning of menses
LH and FSH levels in the middle of the cycle is characterized by what?
higher LH and FSH levels
- follicular recruitment –> speeds up pulse generator
LH and FSH levels in the luteal phase is characterized by what?
High LH pulses
Lower FSH levels
Granulosa cells make ____ and the luteal cells make ____
estradiol
DHEA (androgens)
Fxn of Gonadal peptides made by the ovary:
- Inhibin
- Activin
- Follistatin
- Inhibin:
- inhibits FSH - Activin
- Activates FSH - Follistatin:
- activin binding protein that controls its activity
Inhibin A is important in the _____ phase. Inhibin B is active in the ____ phase of the menstrual cycle.
A: luteal
B: follicular
Usually we must exclude pregnancy and elevated prolactin levels (prolactinomas) in women with disturbances in her menstrual cycle. When do we evaluate a woman with disturbances in her menstrual cycle using:
- Androgen levels
- GnRH stimulation test
- Drawing LH + FSH levels 5 days after menses starts
- Androgen levels:
only indicated in presence of hirsutism and/or acne - GnRH stimulation test
- children with precocious puberty
(hypothalamic amenorrhea) - Drawing LH + FSH levels
- nlly LH=FSH at that time
Hypothalamic amenorrhea
An acquired deficit of Hypogonadotropic hypogonadism
disorder of the GnRH secretory program is one of the most common endocrine disorders (3-5% of amenorrheic women)
- due to stress
- poor nutrition
*abnl GnRH secretion –> low to low nl FSH + LH + E
Hypergonadotropic hypogonadism levels
high FSH and/or LH
Low Estradiol
Amenorrhea
Congenital hypergonadotropic hypogonadism
Turner’s syndrome
Gonadal dysgenesis (XO, XX/XO)
*these people ahve menopause b4 menarche
Premature ovarian insufficiency (POI)
Acquired Hypergopnadotropic hypogonadism
- ovarian failure b4 age 40
- usually do to an autoimmune process
Signs and symptoms of early gonadal failure in premature ovarian syndrome (POI)
- irregular menses w/o molimal symptoms that are signs of an ovulatory cycle
- breast tenderness
- bloating
- cramping - FSH lvls rise before LH lvls
- due to loss of inhibin - waxing and waning course
PCOS most common begins in _______ with irregular menses, anovulation, hirsutism and acne.
60% of pts are overweight, but all are ________
adolescence
insulin resistant
Lab evals of PCOS
timed gonadotropin levels
High LH:FSH >2.5/1
- LH stimulates Theca cells in the ovaries
Increased androgens (DHEAS + T)
Etiology of PCOS
controversial:
GnRH pulse generator that is turned up too high --> High LH --> High androgens (theca stim) --> low SHBG --> increase in free hormone levels