For the first time the functions of natural killer cells in the womb have been identified. Researchers at the University of Warwick and University Hospitals Coventry and Warwickshire (UHCW) NHS Trust have discovered the role that they play in preparing the womb for pregnancy.
Belgian researchers have taken important steps towards creating transplantable artificial ovaries. Once successful, these could be of value to women struggling with infertility or cancer patients who cannot conceive after undergoing radiation or chemotherapy. The research team has identified a protein formulation that closely resembles the structure and rigidity of the natural tissue lining a woman's ovaries, says Marie-Madeleine Dolmans of the Université Catholique de Louvain in Belgium, in an article in Springer's Journal of Assisted Reproduction and Genetics.
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.
A University of Liverpool led international clinical trial has found an anti-impotence drug to be ineffective at improving outcomes for pregnancies complicated by fetal growth restriction.
New research from Lancaster University has identified the 'invisible infertile', a group of marginalized people missing from survey data sources because they do not fit neatly into popular notions of who is at risk of infertility. Around the world, the 'invisible infertile' includes racial and ethnic minorities, those with limited economic resources, those who do not have access to affordable healthcare, the LGBTQ community, persons with disabilities, and more often men than women.
A link between the 'old wives' tale that morning sickness may indicate a healthy pregnancy, and the reason smoking is so detrimental has been found, according to a review published in the Journal of Molecular Endocrinology. The article discusses the importance of the hormone endokinin for healthy pregnancies, its role in causing morning sickness, and how its normal function may be adversely affected by smoking, leading to poor outcomes in pregnancy.
A Japanese research team has succeeded in developing a refrigeration preservation technology that maintains the fertilization functionality of mouse sperm for 10 days. Previously, the maximum freezing period was limited to three days, but by extending the preservation period by over three times that amount, it is now possible to send sperm of genetically modified mice to research organizations around the world.
UNLV research finds that consuming encapsulated placentas has little to no effect on postpartum mood and maternal bonding; detectable changes shown in hormones.
Human sperm may hold the potential to serve as biomarkers of the future health of newborn infants, according to a new study by a Wayne State University School of Medicine research team.
How do cancer and cancer treatments affect the reproductive function of men? Can this affect the health of their direct descendants and subsequent generations? To get a clear picture, INRS researchers evaluate the current state of knowledge on this public health issue in a review article appearing in the journal Gynécologie Obstétrique & Fertilité.