Study Finds Menopause Symptoms Can Be PredictedThe number of eggs left in a woman's ovaries are like the grains of sand in an hourglass, ticking away the hours on her biological clock.Researchers now say they may be able to predict when that clock will wind down. And while doctors can't actually count the number of eggs in an ovary, they can measure ovarian volume. British researchers say there's a direct correlation between the two, and by measuring ovarian volume with transvaginal ultrasound, doctors should be able to predict when menopause will set in and how many fertile years a woman has left. According to the study authors, this information will revolutionize the care of women looking for assisted reproductive technologies, including those who were treated for childhood cancers as well as women who want to put off starting a family for whatever reason. Although information still needs to be validated in clinical studies, its benefit is most likely to start with women who are being treated for cancer and women attending fertility clinics, said Tom Kelsey, co-author of the study appearing June 17 in the journal Human Reproduction. "If women looking for some sort of assisted conception and their physicians know that they've got a long time till menopause, then you could plan for a range of treatments," said Kelsey, who is a senior research fellow at the University of St. Andrews in Scotland. "If you knew menopause was likely in four to five years, you'd plan a different set of IVF [in vitro fertilization] treatments." Others reiterate, however, that the findings should be treated with caution. "Should a young woman who is 30 years old go for a test to figure out whether she's got three, five or 10 years left on her fertility? Should she make career decisions and life decisions? Are these data good enough to make those determinations?" asked Dr. Alan Copperman, director of reproductive medicine at Mount Sinai Medical Center in New York City. "The answer is obviously no to all of those questions. The predictive value of this test is not good enough to go and tell someone to change their life." According to the article, eggs form in a female's ovary while she is still in the womb, peaking at several million about halfway through gestation and then starting a continuous decline. At birth, there are several hundred thousand and, when menstruation begins, about 300,000. At about age 37, a woman has about 25,000 eggs left, and at menopause only about 1,000. The time at which menopause sets in is widely believed to be based on the number of eggs reaching a critically low threshold. The authors of this study measured ovarian volume with transvaginal ultrasound, then looked at the relationship between ovarian volume -- ovaries shrink as a woman ages -- and number of eggs. They then applied mathematical and computer models to predict menopause. The study authors are negotiating with a medical school to set up clinical trials. The idea would be to follow women to see if their predictions were indeed correct. While these authors have come up with a tool to potentially help women plan their lives, a second study in the same issue of Human Reproduction warned that women might not want to leave it too late. Assisted reproductive technology (ART) could not be relied upon to fully compensate for lack of natural fertility after the age of 35, the article stated. The authors used a computer simulation model to determine that the overall success rate of assisted reproductive technology would be 30 percent for those attempting to get pregnant from age 30, 24 percent for those trying from age 35, and 17 percent from age 40. SOURCES: Tom Kelsey, Ph.D., senior research fellow, University of St. Andrews, St. Andrews, Scotland; Alan Copperman, M.D., director, reproductive medicine, Mount Sinai Medical Center, New York; June 17, 2004, Human Reproduction |
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Femalepatient.com Other women have an estrogen elevation sufficient to trigger an LH surge, Perimenopausal women may also experience a decline in sexual function.11 This Approaching Menopause Symptoms of Perimenopause. During true menopause, estrogen and levels of estrogen cause the brain to release a surge of Gonadotropin-releasing hormone. Therapeutics Unusually high estrogen and low progesterone levels 5-10 days before menses (common) . reduced pre-ovulatory estrogen surge, low estrogen overall, Search results for "estrogen" - Revolution Health Just prior to ovulation, women experience an "estrogen surge to this increase the decrease in our estrogen levels during perimenopause and menopause Understanding Your Menstrual Cycle Think of it as the "surge" of the menstrual cycle. The surge has one goal: to get one of Thank that high estrogen level; it thinned your cervical mucus, Imaginis - Menopause The loss of estrogen at menopause is associated with a significantly Power-Surge is a website created by Alice Lotto Stamm, better known by her online Menopause - Wikipedia, the free encyclopedia This decrease in the production of estrogen leads to the perimenopausal symptoms of . by women suffering both from high blood pressure and hot flashes. JAMA -- Menopause and Hypothalamic-Pituitary Sensitivity to Conceptually, an estrogen increase is a high level compared with baseline, An LH surge is considered present when a high level is observed relative to Menstrual Cycle: Biology of the Female Reproductive System: Merck The estrogen level peaks during the surge, and the progesterone level starts to increase. During most of this phase, the estrogen level is high. Menopause - Fulltext: Volume 14(3) May/June 2007 p 373-384 PERIMENOPAUSAL/EARLY POSTMENOPAUSAL CORONARY ARTE ESTROGEN EFFECTS IN LATE . as evidenced by a normal estrogen surge at ovulation and adequate luteal Pre Menopause Symptoms - What They Are This fluid has a high level of estrogen. This estrogen, in conjunction with Estrogen levels need to be at a certain level for the surge of LH hormone Menopause, Hormones, The Menstrual Cycle, Hormone Replacement Since high levels of estrogen suppress the secretion of FSH, The LH surge causes the follicle to rupture and expel the egg into the Fallopian tube. Perimenopause is a time of ÁœEndogenous Ovarian Hyperstimulation ÁœPerimenopausal endogenous ovarian hyper-stimulationÁ« is the exact opposite of ÁœThe Myth of the Shriveling OvaryÁ«: High estrogen levels during perimenopause Biology of Perimenopause : Dr. Susan Love's Menopause and Hormone Book Yet often the symptoms of perimenopause (breast tenderness, headaches, increased vaginal lubrication) are symptoms not of low estrogen but rather of high Menopause - Overview - alternativemedicinechannel If the egg does not develop properly, less estrogen is secreted and levels may not be high enough to cause the LH surge necessary for ovulation. menopausal hot flashes, bleeding after menopause, high estrogen We have many reports along high estrogen surge in perimenopause. Soy product intake and hot flashes in Japanese women: Results from a community-based alternative medicine for menopause, arthritis menopause, chamomile arthritis menopause (estroven menopause); chamomile perimenopause (high estrogen surge in perimenopause); menopausal acne (itching menopausal) Power Surge Forums > Does low estrogen or high estrogen make you nuts? Notice I said some, other researchers have concluded that high estrogen was the problem even when I don't think you can compare PMS with perimenopause. Hot Flash, Hot Flashes - Menopause and What's a Hot Flash? 'Power Surge recommends Revival Soy Protein to replenish estrogen . Diets high in phytoestrogens have been shown to help reduce menopausal symptoms. |
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