duncan@csd4.milw.wisc.edu (Shan D Duncan) (07/19/87)
| Good point about nursing and amenorrhea, but the hormone responsible |for that is the continued high levels of Prolactin, not Oxytocin (both |of which are involved in lactation). | | |--- | Craig Werner (future MD/PhD, 3 years down, 4 to go) | werner@aecom.YU.EDU -- Albert Einstein College of Medicine | (1935-14E Eastchester Rd., Bronx NY 10461, 212-931-2517) | "Disinformation is one thing, but misinformation is unforgiveable." | I stand corrected. I should know better than to rely on "dusty" information. Yes it is prolactin. Oxytocin is involved in the process of milk let-down. Right ladder just on the wrong rung. In fact in a physiology textbook - "This inhibition apparently is short-lived in many women, and approximately 50 percent begin to ovulate despite continued nursing. Pregnancy is common in women lulled into false security by the mistaken belief that failure to ovulate is always associated with nursing." from Humen Physiology: The mechanisms of body function. Vander, Sherman and Luciano. 1980 3rd ed. Where do these figures come from? 50%? I like the ambiguity :-) in this passage "apparently", "short-lived", "many women", "always". Does anyone have any more specific information --- world wide ---- not just western? If my ("fading") memory servers it was in an anthropology text mentioning bushmen women, nursing and fertility. Perhaps they were making some assumptions... or were they? While I am on the subject of birth control. Does anyone have any information on the latest and greatest? Last I heard was a method involving implantation of a device using weak electric currents to interfere with the motility of sperm (Discover article- not the best source). What happeded to the "vaccine" methods involving FSH or Gn-RH? duncan@csd4.milw.wisc.edu