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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.

New research sheds light on successful ovulation and fertilization

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. [More]
Relationship between obesity and PCOS may be exaggerated, say researchers

Relationship between obesity and PCOS may be exaggerated, say researchers

The relationship between obesity and polycystic ovary syndrome may be exaggerated, likely because the women who actively seek care for the condition tend to be heavier than those identified through screening of the general population, researchers report. [More]

Researchers discover injectable protein to reverse symptoms of dangerous conditions

The creation of new blood vessels in the body, called "angiogenesis," is usually discussed in connection with healing wounds and tumors. But it's also an ongoing process in the female reproductive tract, where the growth and breaking of blood vessels is a normal part of the menstrual cycle. But abnormal growth of blood vessels can have painful consequences and resultant pathologies. [More]

Study provides new insights about polycystic ovarian syndrome, insulin resistance

A group of tiny RNA molecules with a big role in regulating gene expression also appear to have a role in causing insulin resistance in woman with polycystic ovary syndrome and, perhaps, in all women, researchers report. [More]
Researchers discover ovarian stem-like epithelial cells that can mutate to form tumors

Researchers discover ovarian stem-like epithelial cells that can mutate to form tumors

In collaboration with colleagues at Cornell University, a team of cancer researchers at Cold Spring Harbor Laboratory (CSHL) has discovered cells with stem-cell properties in the ovary that can mutate to form tumors. [More]

Study finds major risk factor behind increased risk of adverse outcomes in IVF pregnancies

Massachusetts General Hospital (MGH) researchers have identified what may be a major factor behind the increased risk of two adverse outcomes in pregnancies conceived through in vitro fertilization (IVF). [More]

Mich. panel strips abortion from Blue Cross bill; Ark. House takes action

A House panel on Thursday overwhelmingly approved legislation to overhaul Blue Cross Blue Shield of Michigan, leaving out anti-abortion provisions that torpedoed an earlier effort to change the status of the state's largest health insurer. The 11-0 votes signaled -; at least for now -; that one of Republican Gov. Rick Snyder's top legislative priorities could reach his desk without language that led him to veto similar legislation in late December. The Senate OK'd the new Blue Cross bills in late January. [More]

High anti-M-llerian hormone levels signal increased likelihood of pregnancy, birth

Women with a high concentration of anti-M-llerian hormone stand a better chance of giving birth after in vitro fertilization, according to a recent study accepted for publication in The Endocrine Society's Journal of Clinical Endocrinology & Metabolism (JCEM). [More]
FDA approves Takeda’s NESINA, OSENI and KAZANO for treatment of type 2 diabetes

FDA approves Takeda’s NESINA, OSENI and KAZANO for treatment of type 2 diabetes

Takeda Pharmaceutical Company Limited and its wholly-owned subsidiary, Takeda Pharmaceuticals U.S.A., Inc. today announced that the United States (U.S.) Food and Drug Administration (FDA) has approved NESINA (alogliptin) and the fixed-dose combination (FDC) therapies OSENI (alogliptin and pioglitazone) and KAZANO (alogliptin and metformin HCl) for the treatment of type 2 diabetes in adults as adjuncts to diet and exercise. [More]

Infertility treatment may raise childhood asthma risk

Children born after infertility treatment are at increased risk for asthma, results of a large cohort study indicate. [More]

A screening tool to evaluate pre-menstrual disorders

Even though there are many women who do not notice any special symptoms, there are some whose pre-menstrual disorders hamper their everyday lives: depressive mood, anxiety, excessive emotional sensitivity, fatigue, lack of concentration, headache, etc. [More]
Researchers examine impact of exercise on mare reproductive health and embryo transfer

Researchers examine impact of exercise on mare reproductive health and embryo transfer

In the latest issue of the Journal of Animal Science, researchers at Clemson University and the University of Florida examine the impact of exercise on mare reproductive health and embryo transfer. [More]
Hormonal component to respiratory symptoms in women

Hormonal component to respiratory symptoms in women

Changes in respiratory symptoms in women may be governed partly by their menstrual cycles, research suggests. [More]
Respiratory symptoms differ significantly during different stages of the menstrual cycle

Respiratory symptoms differ significantly during different stages of the 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. [More]
In vitro fertilization may significantly increase risk of birth defects

In vitro fertilization may significantly increase risk of birth defects

In vitro fertilization may significantly increase the risk of birth defects, particularly those of the eyes, heart, reproductive organs and urinary system, according to a new UCLA study. [More]

IVF may significantly increase risk of birth defects, new research says

In vitro fertilization may significantly increase the risk of birth defects, particularly those of the eye, heart, reproductive organs and urinary systems, according to new research presented Saturday, Oct. 20, at the American Academy of Pediatrics National Conference and Exhibition in New Orleans. [More]
Common misconceptions about breast cancer risks

Common misconceptions about breast cancer risks

From the food we eat to the products we use, there are a lot of misconceptions about what may increase the risk of developing breast cancer. There are known factors, like genetics, that are well documented. But what about lifestyle issues like having a nightly cocktail or using deodorant? So, what is fact and what is fiction? Wendy Chen, MD, MPH, a breast cancer expert at Dana-Farber Cancer Institute in Boston says an overabundance of information can be confusing, and it often is incorrect to some degree. [More]
Losing weight does not lead to improved fertility in women

Losing weight does not lead to improved fertility in women

Losing weight does not lead to improved fertility in women, but does improve sexual function, according to Penn State College of Medicine researchers. [More]

Study explains link between infertility and hyperprolactinaemia

One of the most frequent is the existence of tumours that induce an over-secretion of this hormone. These women present with chronic infertility due to anovulation. Thanks to the work of the Inserm researchers from unit 693 "Steroid receptors: endocrinian and metabolic physiopathology", the intimate mechanism of the hyperprolactinaemia alterations affecting reproduction in mice has been discovered. [More]

Contraceptive patch suppresses ovulation in obese, nonobese women

Use of a novel transdermal contraceptive patch suppresses ovulation in obese and nonobese women, research shows. [More]