Ovulation News and Research

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Ovulation is the process in a female's menstrual cycle by which a mature ovarian follicle ruptures and discharges an ovum (also known as an oocyte, female gamete, or casually, an egg). Ovulation also occurs in the estrous cycle of other female mammals, which differs in many fundamental ways from the menstrual cycle. The time immediately surrounding ovulation is referred to as the ovulatory phase or the periovulatory period.

Study reveals how ovaries maintain a female's fertility

Recently published work from Carnegie's Allan Spradling and Wanbao Niu revealed in unprecedented detail the genetic instructions immature egg cells go through step by step as they mature into functionality.

9 Oct 2020

Women with unexplained miscarriages have altered perceptions to male body odors

Women who have suffered unexplained repeated pregnancy loss (uRPL) have altered perceptions and brain responses to male body odors, in comparison to those with no history of uRPL, suggests a new study published today in eLife.

30 Sep 2020

Remnants of bird ovaries can be preserved in the fossil record, confirms study

A research team led by Dr. Alida Bailleul from the Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences has put one controversy to rest: whether or not remnants of bird ovaries can be preserved in the fossil record.

29 Jul 2020

Developing a Better Understanding of Polycystic Ovary Syndrome (PCOS)

In this interview, Dr. Andrea Dunaif talks to News-Medical about their genetic analysis study which suggests there are different subtypes of PCOS.

20 Jul 2020

Morning sickness should be described as nausea and sickness, argue researchers

The term 'morning sickness' is misleading and should instead be described as nausea and sickness in pregnancy, argue researchers led by the University of Warwick who have demonstrated that these symptoms can occur at any time of the day - not just the morning.

30 Jun 2020

PCOS subtypes associated with distinct genetic variations, finds study

Researchers working on a National Institutes of Health (NIH) funded study found that polycystic ovary syndrome (PCOS) has distinct subtypes that are associated with genetic variations.

24 Jun 2020

Woman's genetic make-up may play a role in weight gain from birth control

A woman's genetic make-up may cause her to gain weight when using a popular form of birth control, according to a study from researchers at the University of Colorado Anschutz Medical Campus.

12 May 2020

Harmful effects of BPA can be reversed by administering coenzyme Q10

Exposure to bisphenol A (BPA), an industrial chemical used to make certain plastics and resins, inner coatings for food cans and bottle tops, thermal paper used in store receipts, dental sealants and so on, is a concern because of possible adverse health effects, including a reduction in fertility.

7 May 2020

Study: Genes may play a far more complex role in oocyte maturation than previously assumed

Over the last six years a group of Estonian geneticists led by Associate Professor Agne Velthut-Meikas and a PhD student Ilmatar Rooda from TalTech Department of Chemistry and Biotechnology have studied genes previously associated primarily with female hormone synthesis and ovarian follicle development.

7 May 2020

Experiences of women who had negative effects when using hormonal contraception

A study of women who experienced mental ill-health from a hormonal contraception indicates they value their mental well-being higher than a satisfactory sex life. Their experiences can influence their choice of contraception.

31 Mar 2020

Researchers explore ovulatory-cycle shifts in women’s mate preferences

In the past, there has been much excitement over research that purported to show a link between changes in a woman's cycle and how attracted she was to men behaving in different ways.

7 Mar 2020

Having children and breastfeeding lowers risk of premature menopause

A new study published in the journal JAMA Network Open reports that early menopause is less likely to happen in women who have had one or more pregnancies that went beyond 6 months, and in women who nursed their babies. Exclusive breastfeeding was associated with the lowest risk.

22 Jan 2020

Women who have more sex less likely to have early menopause

Women who have sex more are at a reduced risk of experiencing early menopause, a new study found. The new finding raises the possibility of lifestyle practices as a predictor of when menopause will occur.

15 Jan 2020

Scientists map the location of structural proteins in pig ovary for the first time

For the first time, scientists identified and mapped the location of structural proteins in a pig ovary. Ongoing development of an "ink" with these proteins will be used for 3-D printing an artificial (or bio-prosthetic) ovary that could be implanted and allow a woman to have a child.

6 Jan 2020

Scientists successfully cultivate and characterize corpus luteum cells of cats

The reproduction of lynxes is highly mysterious. Unlike other wild cats, most lynxes are only receptive for a few days once a year.

20 Dec 2019

Researchers identify novel genetic signature with prognostic value for certain breast cancers

Researchers have identified a genetic signature with prognostic value for certain kinds of breast cancer. The discovery also contributes to a better understanding of the molecular mechanisms of pathological angiogenesis, the aberrant proliferation of blood vessels that occurs during cancer and other diseases.

17 Dec 2019

Daughters of women with PCOS five times more likely to develop the syndrome in adulthood

Daughters of women with polycystic ovarian syndrome are five times more likely to be diagnosed with PCOS as adults, and the generational transmission is driven by high androgen levels during pregnancy, researchers at Karolinska Institutet in Sweden report.

2 Dec 2019

Fertility treatments cause epigenetic changes in mouse embryos, study finds

Though epigenetic disorders - diseases caused by faulty gene expression - are still rare overall, babies born using fertility treatments have up to an 11-fold higher risk of inheriting them.

26 Nov 2019

New light on the essential reproductive role of the clitoris

A new study focuses on the role of the clitoris in females, showing that when it is stimulated, it triggers a wave of changes within the rest of the reproductive tract. The outcome of these changes confers on the clitoris not only recreative but also reproductive importance, according to the studies.

10 Nov 2019