Reproductive Treatments Flashcards
how is male hypogonadism confirmed?
2x low fasting serum testosterone in morning
Symptoms of hypogonadism
Loss of morning erections,low energy,low libido
Common treatment for male hypogonadism
daily gel, 3 weekly intramuscular injection, 3 monthly intramuscular injection
watch haemaocrit as risk of hyper viscosity,watch PSA,don’t contaminate partner with gel
(Secondary)
what is needed to induce spermatogenesis?
gonadotrophins FSH and LH
LH FSH function in males
LH stimulates Leydig cells → increase in intratesticular testosterone
FSH stimulates seminiferous tubule development + spermatogenesis
treatment for male cause infertility?
hCG injections for 6 months, then +FSH injections if no effect
hCG mimicks LH so activates leydig cells thus producing testosterone
what does hCG do?
Acts on LH
would you ever give testosterone in hypogonadism
no, could further reduce FSH and LH → spermatogenesis worse. issue is in pituitary
causes of hypothalamic amenorrhea?
low body weight, excessive exercise, stress, genetic susceptibility
what is the aim of ovulation induction?
Develop 1 ovarian follicle
Via small FSH increase
If more than 1 then risk of multiple pregnancy
treatments to restore ovulation in PCOS?
lifestyle/5% weight loss
metformin
- letrozolearomatase inhibitor → more oestrogen less androgens
- clomipheneoestradiol receptor modulation
FSH stimulation
treatments to restore ovulation in hypothalamic amenorrhea?
lifestyle / weight gain / reduce exercise
pulsatile GnRH pump
FSH stimulation
letrozole
clomiphene
steps of IVF treatment?
oocyte retrieval → fertilisation in vitro/intracytoplasmic injection if sperm count is low → embryo incubation → embryo transfer
action of oestrogen and progesterone in HPG axis?
negative feedback on pituitary and hypothalamus
how does contraceptive pill work?
increase oestrogen and progesterone
anovulation, thickening of cervical mucus, thining of endometrial lining = less implantation