Repro 4 - Pregnancy Flashcards
Use of this by athletes would increase FSH, LH, and testosterone
Clomiphene (Clomid)
- Selective Estrogen Receptor Modulators (SERM); antagonist
Absence of menses in female by age 17
Primary amenorrhea
Cessation of menstruation for longer than 6 months
Secondary amenorrhea
Infrequent periods (cycles longer than 5 weeks)
Oligomenorrhea
Painful menses from uterine contractions
Dysmenorrhea
Inappropriately heavy hair growth in androgen sensitive areas
Hirsutism
Inappropriately heavy hair growth in androgen sensitive areas PLUS more pronounced evidence of androgen stimulation
Virilization
Abdominal bloating, extreme fatigue, breast tenderness, labile mood are all symptoms of this
PMS (premenstrual syndrome)
Trace pathway in PCOS (polycystic ovarian syndrome)
High insulin → increased androgen production (infertility) and conversion to estrogens (weight gain) → impaired follicle development → degeneration of follicles into cysts
Treatments for PCOS
Metformin (suppresses glucose production in the liver)
Clomiphene (Clomid)
Weight loss
Smoking cessation
Removal/modification of protein coat prepares the sperm for the acrosomal reaction
Capacitation
Release of proteolytic enzymes that disperse granulosa cells and permit sperm attachment to zona pellucida and penetration
Acrosomal reaction
Binding event that causes IP3-mediated release of Ca2+ in egg
ZP3 receptors from sperm → ZP3 on egg
Increases velocity and direction of sperm
cGMP, via ANP and NO
Increases endometrial thickening, potentially improving fertility
Sildenafil vaginal suppositories