Ovulation Current Events

Ovulation Current Events, Ovulation News Articles.
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Do women's voices really allow men to detect ovulation?
A new study challenges the view that women broadcast reproductive information in their voice. (2011-09-21)

Simple test gives accurate prediction of ovulation to help women become pregnant
Using a widely available ovulation test is a more reliable method of predicting when a woman will be at her most fertile than the commonly used calendar method, the annual conference of the European Society of Human Reproduction and Embryology heard today. Researchers said that the ovulation test could cope with cycle variability, whereas the calendar method could not. (2011-07-05)

Yale researchers shed light on evolutionary mystery: Origins of the female orgasm
Female orgasm seems to be a happy afterthought of our evolutionary past when it helped stimulate ovulation, a new study of mammals shows. (2016-08-01)

UTSA study finds ovulating women perceive sexy cads as good dads
Nice guys do finish last at least when it comes to procreation according to a study from the University of Texas at San Antonio that answers the question of why women choose bad boys. Research from Kristina Durante, assistant professor of marketing at the University of Texas at San Antonio College of Business, finds that hormones associated with ovulation influence women's perceptions of men as potential fathers. (2012-05-14)

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)

Women's faces get redder at ovulation, but human eyes can't pick up on it
Past research shows men find female faces more attractive at peak fertility. A new study shows an increased redness of women's face skin at the most fertile point of ovulatory cycle, but just under the threshold for detectability, ruling out skin coloration as a driver of the attractiveness effect. (2015-06-30)

Female bonobos send mixed messages to males
Sexual swellings are unreliable signals of fertility in female bonobos. (2016-07-06)

Marijuana and fertility: Five things to know
For patients who smoke marijuana and their physicians, 'Five things to know about ... marijuana and fertility' provides useful information for people who may want to conceive. The practice article is published in CMAJ (Canadian Medical Association Journal). (2019-06-10)

Competition among human females likely contributed to concealed ovulation
Humans are among the few species that lack overt physical indicators of female fertility. One explanation for concealed ovulation in human females is that hiding fertility from males helps females secure resources from males for raising children. A new model developed by a team of evolutionary scientists casts doubt on this idea, showing that females might have evolved to conceal ovulation from one another, not from males. (2021-01-25)

Insect and mammal ovulation more alike than not?
The average American woman lives more than 80 years and ovulates for 35 of them, producing an egg approximately once a month. The typical fruit fly lives about 4 weeks as an adult and ovulates every 30 minutes. Despite the vast differences, researchers have found that during a key process in ovulation, the same gene may govern both. The results could bring insight to cancer metastasis, human fertility and ovarian disease. (2015-02-19)

Researchers discover a gene that regulates and blocks ovulation
A group of Canadian and European researchers have unlocked the mystery of a gene with the potential to both regulate and block ovulation. The new study -- a collaboration between the Université de Montréal in Canada and the Institut de génetique et biologie moléculaire et cellulaire of the Université de Louis Pasteur, Strasbourg, France -- is published in the latest issue of the journal Genes & Development. (2008-07-17)

Male rivalry increases when females at most fertile, say researchers
Men become more jealous of dominant males when their female partner is near ovulation, researchers at the University of Liverpool have found. (2006-04-24)

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)

Polycystic ovary syndrome: 1 in 15 women affected worldwide and burden likely to increase
The diverse and complex female endocrine disorder polycystic ovary syndrome, which affects one in 15 women worldwide, is a major economic health burden that is likely to expand together with obesity, conclude authors of a seminar in this week's edition of the Lancet. (2007-08-23)

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)

Weight loss does not improve fertility
Losing weight does not lead to improved fertility in women, but does improve sexual function, according to Penn State College of Medicine researchers. (2012-10-17)

Standard therapy more effective than diabetes drug in helping women with PCOS achieve pregnancy
Metformin, a drug used to treat diabetes and once thought to have great promise in overcoming the infertility associated with polycystic ovary syndrome (PCOS), is less effective than the standard fertility drug treatment, clomiphene, according to researchers from the University of Pennsylvania School of Medicine and the National Institutes of Health Reproductive Medicine research network. (2007-02-07)

The successful ovulation of 100 eggs from 1 female mouse
Scientists at Kumamoto University have developed a new method of controlled ovarian hyperstimulation, termed ultra-superovulation, in which ovulation of a very large number of eggs from one female mouse occurs. This development makes it possible to analyze gene function more efficiently through mass production of knockout mice. (2015-06-19)

The three days pregnancy sickness is most likely to start pinpointed
Researchers from the University of Warwick have narrowed the time frame that nausea and vomiting during pregnancy will potentially start to just three days for most women, opening up the possibility for scientists to identify a biological cause for the condition. (2021-01-12)

Dietary supplement may enhance dairy cattle health and reproductive capacity
Dairy cattle diets are often deficient in the essential amino acid methionine; supplements have been shown to increase milk production and protein concentration. A new study shows that rumen-protected methionine supplements can change gene expression in the ovarian follicle, potentially leading to shorter time between ovulation events. Methionine supplements also decrease expression of genes related to inflammation in the cells of the ovarian follicle. (2017-04-17)

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)

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)

Female mice are able to smell male pheromones only when ready to mate
An American study in mice reveals that hormones that dictate a female's attraction towards males do so in part by controlling her sense of smell. The findings, published June 4 in Cell, provide an example of how hormones may use the nose to circumvent the brain and influence behavior. (2015-06-04)

Researchers identify key proteins needed for ovulation
Researchers from the National Institutes of Health and other institutions have identified in mice two proteins essential for ovulation to take place. The finding has implications for treating infertility resulting from a failure of ovulation to occur as well as for developing new means to prevent pregnancy by preventing the release of the egg. (2009-05-14)

Estrogen discovery could shed new light on fertility problems
Estrogen produced in the brain is necessary for ovulation in monkeys, according to researchers at the University of Wisconsin-Madison who have upended the traditional understanding of the hormonal cascade that leads to release of an egg from the ovaries. Their findings may reveal the cause of some undiagnosed infertility problems and point the way to new methods of birth control. (2017-12-12)

Reproductive tract secretions elicit ovulation
Eggs take a long time to produce in the ovary, and thus are one of a body's precious resources. It has been theorized that the body has mechanisms to help the ovary ensure that ovulated eggs enter the reproductive tract at the right time in order to maximize the chance of successful fertilization. New research from Carnegie's Allan Spradling and Jianjun Sun has shed light on how successful ovulation and fertilization are brought about by studying these processes in fruit flies. (2013-04-17)

Forget basal body temperature -- check out her clothes
Near ovulation, women dress to impress, and the closer women come to ovulation, the more attention they seem to pay to their appearance, suggests a new UCLA and University of Wisconsin-Eau Claire study. (2006-10-09)

There are a few 'safe' days in menstrual cycle
Guidelines have assumed an average woman is fertile between days 10 and 17 of her menstrual cycle. National Institute of Environmental Health Sciences researchers have demonstrated what some accidentally pregnant women may have long suspected: Only about 30 percent of women actually have their fertile window entirely within that timespan. (2000-11-16)

Weizmann Institute scientists discover: Antioxidants cause fertility problems in females
Antioxidants are sold over the counter everywhere. They're added to food, drink and face cream. But new research by professor Nava Dekel and her team of the Weizmann Institute of Science has revealed a possible unexpected side effect of antioxidants: They might cause fertility problems in females. Their results were recently published in the Proceedings of the National Academy of Sciences. (2011-01-18)

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)

New discovery may help doctors treat infertility
New research suggests that medications commonly referred to as fertility drugs may be ineffective for women who lack a gene called the estrogen receptor beta. The study showed that fertility drugs did not improve ovulation rates in mice that were genetically engineered to lack estrogen receptor beta. (2005-07-20)

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)

Acupuncture may not be effective in treating infertility
Acupuncture, alone or with the medication clomiphene, does not appear to be effective in treating infertility in women with polycystic ovary syndrome (PCOS), according to an international team of researchers. The finding casts doubts on previous smaller trials that have suggested that acupuncture may improve reproductive function in women affected by infertility. (2017-06-27)

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)

NICHD Network Identifies Most Effective Of A Series Of Infertility Treatments
An NICHD study has determined the most effective of a series of infertility treatments. (1999-01-20)

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)

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)

Frontline treatments show best results for unexplained infertility
A breast cancer drug with promise for improving the chance that couples with unexplained infertility can have a baby without increasing their risk of multiple births apparently does not deliver, according to a comparative study. (2015-09-23)

Respiratory symptoms vary according to stage of menstrual cycle
Respiratory symptoms vary significantly during different stages of the menstrual cycle, with higher frequencies during the mid-luteal to mid-follicular stages, according to a new study. (2012-11-09)

Corpus luteum cells of cats successfully cultivated and comprehensively characterized
The reproduction of lynxes is highly mysterious. Unlike other wild cats, most lynxes are only receptive for a few days once a year. The Berlin team has now achieved another breakthrough in solving the puzzle: they were able to isolate several cell types of corpus luteum from domestic cat tissue and characterise their function with the help of cell cultures. The new method can also be applied to endangered felids such as the Iberian lynx. (2019-12-20)

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