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Current Ovulation News and Events, Ovulation News Articles.
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Female infertility cAMP
The final cellular division in egg formation is not completed until just before ovulation. This final division can be blocked by a chemical called cAMP. In the July 15 issue of the Journal of Clinical Investigation, researchers from the NIH, show that female mice missing a gene called Pde3a, whose function is to breakdown cAMP, can carry out ovulation, but are completely infertile. This infertility is reversible, suggesting PDE3A may be a potential contraceptive target. (2004-07-15)

Infertility treatment affects oral health
Researchers found that women undergoing ovulation induction for infertility treatment for more than three menstrual cycles experience higher gingival inflammation, bleeding and gingival crevicular fluid (GCF). This study appeared in the recent issue of the Journal of Periodontology. (2004-06-22)

Polycystic ovary syndrome treated with new approach in Stanford study
A common diabetes medication is effective at treating symptoms of polycystic ovary syndrome, according to a Stanford University School of Medicine study. Nicholas Cataldo, MD, adjunct clinical instructor of obstetrics and gynecology, is presenting his findings at the annual meeting of the Endocrine Society in New Orleans. (2004-06-16)

Nature's ambush: pregnancy more likely from single unprotected intercourse than believed
US research published (Thursday 10 June) in Europe's leading reproductive medicine journal Human Reproduction suggests that a single act of unprotected intercourse is more likely to lead to an unwanted pregnancy than was previously believed. (2004-06-09)

Research into cetacean reproduction leads to birth of killer whales by artificial insemination
Research into the reproductive physiology of killer whales has led to the first live births by artificial insemination of any whale species. The scientists who conducted these studies of killer whales say that their work will help ensure the genetic vitality of marine mammals in zoological facilities. (2004-05-12)

Monthly hormonal changes can exacerbate seizures in women with epilepsy
Women who have epilepsy often experience an increase in seizure frequency around the time of their menstruation each month, which is referred to as catamential epilepsy. Researchers at four centers, including Emory University in Atlanta, GA, are investigating what causes this frequency and the patterns in which the seizures develop. (2004-04-29)

Solvent, common drug plus hormones raise risk of reproductive failures and breast cancers
Researchers have identified an industrial solvent in the environment and a frequently prescribed drug, valproic acid, as compounds that so potently boost estrogen and progestin activity inside cells that they likely trigger the reproductive failures -- and potentially even breast cancers -- seen among women exposed to these chemicals. (2004-04-19)

Fertility herbal supplement sprouts promising results in Stanford pilot study
A researcher at the Stanford University School of Medicine says a small study shows promise for a nutritional supplement that may help boost fertility in women who have difficulty conceiving. Initial results indicate that of the women who took the supplement, one-third became pregnant after five months. (2004-04-19)

Menstrual cycle affects periodontal health
Many women report an increase in gingival inflammation and discomfort associated with their menstrual cycle, according to findings published in the March Journal of Periodontology. This is the first time this well-known phenomenon has ever been studied. (2004-03-30)

Fox Chase Cancer Center research reveals how COX-2 causes ovarian cancer
Fox Chase Cancer Center scientists have identified how an enzyme called COX-2 may promote the development of ovarian tumors, adding further insight into the mechanism of COX-2 inhibitors and the prevention of this highly lethal disease. (2004-03-28)

Cedars-Sinai March medical tipsheet
Cedars-Sinai's medical tipsheet for March includes: 1) The ABC's and 1-2-3's of heart attack; 2) Androgen excess study in women; 3) Laparoscopy to help infertile women avoid months of treatments; and 4) Gene identified that causes insulin resistance in Mexican Americans. (2004-03-04)

Specialists: Laparoscopy can help infertile women avoid months of unnecessary treatments
New research indicates that many women with infertility due to ovulation problems who do not become pregnant after using the fertility pill clomiphene citrate should undergo a laparoscopy prior to further treatment. Laparoscopic evaluation provides much better images, is far more useful in identifying anatomical abnormalities, and can enable many patients to avoid the cost and frustration of months of unneeded treatment. (2004-02-23)

Large-scale analysis of women with androgen excess: thorough treatment can reduce symptoms
Although they are considered (2004-02-04)

Aging brain reduces ovulation
Dutch researcher Annelieke Franke has discovered that the aging of the brain adversely affects the fertility of female rats. The scientist suspects that her research will provide insights into fertility problems of women over the age of 30. (2003-10-10)

Cervical cancer vaccine may lose effectiveness during ovulation
A new study has found that a vaccine against human papillomavirus 16 (HPV16), the virus that causes cervical cancer, produces antibodies against HPV16 at the site where cervical cancer develops--a promising indication of the vaccine's effectiveness. However, antibody levels appear to decrease around ovulation, raising the possibility that the vaccine may be less effective during that time. The findings appear in the August 6 issue of the Journal of the National Cancer Institute. (2003-08-05)

Yale researcher discovers 'brain temperature tunnel'
Yale researcher M. Marc Abreu, M.D., has identified an area of the brain he calls the brain temperature tunnel, which transmits brain temperature to an area of skin and has the potential to prevent death from heat stroke and hypothermia, and detect infectious diseases such as Severe Acute Respiratory Syndrome (SARS). (2003-07-15)

Mutant gene found to cause early ovarian failure in mice
Researchers at Dana-Farber Cancer Institute and Brigham and Women's Hospital have discovered a gene mutation in mice that causes premature ovarian failure, a form of infertility affecting an estimated 250,000 women in the United States. The investigators say the discovery will lead to unique animal models of premature ovarian failure (POF), or early menopause, useful for further studying the poorly understood condition. (2003-07-10)

First West Coast baby born using frozen egg technique
University Fertility Consultants at the Oregon Health & Science University have successfully frozen human eggs that have resulted in the birth of a baby boy. This is the first known birth from this technique on the West Coast, and one of only about 25 nationwide. (2003-07-10)

Isolation of ferret protein promising for cancer, reproductive studies
Biologists studying early pregnancy in ferrets have isolated a protein vital to embryonic implantation. The discovery could enhance assisted-reproductive efforts in many threatened species, and it opens a new window to study numerous cancerous tumors that secrete the same protein. (2003-06-24)

Scientists produce mouse eggs from embryonic stem cells, demonstrating totipotency even in vitro
Researchers at the University of Pennsylvania have created the first mammalian gametes grown in vitro directly from embryonic stem cells. The work, in which mouse stem cells placed in Petri dishes -- without any special growth or transcription factors -- grew into oocytes and then into embryos, will be reported this week on the web site of the journal Science. (2003-05-01)

Oral contraceptives increase C-reactive protein, an infIammatory biomarker
C-reactive protein (CRP) is a protein in the body whose level increases when blood vessels become inflamed. Measuring cardiovascular risk is thought to be possible by assessing CRP levels. Previously published data has shown that blood levels of CRP are elevated many years before a first heart attack or stroke occurs. Accordingly, a team of researchers set out to investigate the association between current low-dose oral contraceptives and levels of plasma CRP. (2003-04-09)

New research tool allows perimenopausal women to assess their ovulation status
The Study of Women's Health Across the Nation (SWAN)a multisite, multiethnic, longitudinal study of midlife women, provides an objective assessment of presumed ovulatory status as participants proceed toward menopause. (2003-04-02)

Pheromones in male perspiration reduce women's tension, alter hormone response
Scientists at the University of Pennsylvania and the Monell Chemical Senses Center in Philadelphia have found that exposure to male perspiration can brighten women's moods, reducing tension and increasing relaxation, and also has a direct effect on the release of a hormone that affects the length and timing of the menstrual cycle. (2003-03-14)

Folic acid supplements not linked to multiple births
Results of a Chinese population-based study in this week's issue of The Lancet provide strong evidence that women who take folic acid supplements during pregnancy do not have an increased likelihood of having a multiple birth. (2003-01-30)

A possible link between IVF and eye cancer?
An observational study by Dutch authors in this week's issue of THE LANCET suggests that children conceived by in-vitro fertilisation (IVF) could be at an increased risk of retinoblastoma (a malignant tumour of the retina). However the investigators and authors of an accompanying Commentary stress that it is too early to conclude that there is a true association between IVF and retinoblastoma until larger studies can confirm these preliminary findings. (2003-01-23)

Saving energy for sex
Dr. David Greenstein and colleagues at Vanderbilt University School of Medicine (Nashville, Tennessee) have identified a sperm-sensing control mechanism through which worms can coordinate oocyte (egg cell) development with sperm availability. Published in G&D, this discovery lends new insight into the molecular basis for energy-efficient reproduction in highly reproducing animals, like the roundworm C. elegans, whose relatives are the culprits in diseases like elephantiasis and river blindness and destroy billions of dollars worth of crops annually. (2003-01-14)

Worm sex receptor identified
Vanderbilt Medical Center investigators have identified a sperm-sensing receptor in the eggs of the microscopic worm, C. elegans. It is the first reported receptor that participates in egg maturation and ovulation. The researchers found that an Eph receptor called VAB-1 participates in a checkpoint mechanism to ensure that sperm are present before eggs are released. (2003-01-14)

New role for tamoxifen as fertility drug for breast cancer patients?
US fertility experts have discovered a potential new role for the wonder drug tamoxifen - helping breast cancer patients to have babies by IVF. Their research is reported in the latest issue of Human Reproduction. (2003-01-07)

A less invasive fertility procedure could be used to treat some infertile women
A woman with an obstructed cervix has been successfully treated for infertility using a technique known as intraperitoneal insemination (IPI). The technique, described in a case report just published in BMC Pregnancy and Childbirth, is less invasive and cheaper than alternative infertility treatments, which involve the harvesting of a woman's eggs. (2002-11-26)

Popular long-acting contraceptive linked to vascular dysfunction
Long-term use of a contraceptive injected once every three months impairs the arteries' ability to contract and expand, possibly increasing the risk for heart disease, according to research reported in today's rapid access issue of Circulation: Journal of the American Heart Association. (2002-09-02)

No association between ageing gametes and birth defects
Authors of a research letter in this week's issue of THE LANCET conclude that there is no evidence to support the belief that sexual intercourse too soon or two long after ovulation is associated with an increased risk of birth defects and Down's syndrome. (2002-05-09)

New research shows women's fertility starts declining from late 20s and men's from late 30s
New US-Italian research shows that a woman's fertility starts declining as early as her late 20s and a man's from his late 30s. (2002-04-29)

Sturgeon researcher's vision spawns thriving industry
California is the world's foremost producer of white sturgeon. Farming sturgeon for meat and caviar may relieve the pressure on wild stocks of the endangered fish. (2002-03-18)

Energy balance, not exercise, key to athletic menstrual disturbance
Female athletes often lose their menstrual cycle when training strenuously, but researchers have long speculated on whether this infertility was due to low body fat, low weight or exercise itself. Now, researchers have shown that the cause of athletic amenorrhea is more likely a negative energy balance caused by increasing exercise without increasing food intake. (2002-02-12)

No association between fertility drugs and ovarian cancer, say University of Pittsburgh researchers
Fertility drugs do not put women at a higher than average risk of ovarian cancer, according to the largest analysis to date on the topic, conducted by University of Pittsburgh Graduate School of Public Health (GSPH) researchers and published in the February 1 issue of the American Journal of Epidemiology. (2002-01-25)

Hormone progestin protects against ovarian cancer
A new Duke University Medical Center study shows that oral contraceptives with higher levels of progestin seem to reduce a woman's risk of ovarian cancer. The study is featured in the January issue of the Journal of the National Cancer Institute. (2002-01-01)

Does the Pill affect libido by blunting a woman's sense of smell?
Italian scientists have confirmed that the Pill appears to affect a woman's sensitivity to smells In Human Reproduction they suggest this could affect libido and also that the concept of hidden ovulation in humans may need to be rethought. (2001-10-25)

Scientists find simple way of identifying the likeliest days to conceive
A simple way of establishing on which days in a woman's menstrual cycle she is fertile has been identified by US and Italian fertility experts, according to research published in Europe's leading reproductive medicine journal, Human Reproduction. (2001-10-25)

Ending the cycle of premenstrual pain: Oral contraceptive found to relieve severe PMS and PMDD symptoms
Researchers report that a combination of components found in a unique oral contraceptive have been found to ease the symptoms of premenstrual syndrome (PMS) and premenstrual dysphoric disorder (PMDD). According to Ellen Freeman of the University of Pennsylvania School of Medicine and lead author of the study, the oral contraceptive may offset the major symptoms of premenstrual syndromes by suppressing ovulation, reducing water retention, and counteracting the effects of testosterone. (2001-08-22)

A pill for reversible suppression of periods - a new option
Two new types of antiprogestins that can suppress menstruation and could end the monthly misery many women suffer have passed their first tests in animals, US scientists report in Europe's leading reproductive medicine journal, Human Reproduction, (2001-07-26)

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