IVF experts disagree about whether transferring a fresh or frozen embryo to a patient's womb offers the best opportunity for healthy babies. According to a study of almost 83,000 IVF patients published August 20 in the journal Fertility and Sterility, there is no one-size-fits-all solution. The best technique may vary, depending on how many eggs the patient produces.
The US Preventive Services Task Force has updated its 2012 recommendations for cervical cancer screening with one important addition. This is the first time they are recommending a method of cervical cancer screening that does not include the Pap test -- the gold-standard screening test for more than 75 years. A leading OB/GYN physician provides an important review of these new guidelines, which preserve the greatest range of choices for practitioners and patients.
Proteomic analysis of oocytes from obese mice showed changes in a protein that promotes antioxidant production and may alter meiotic spindles.
Birth status and knowledge about it play a role not only in parents' but also children's lives -- affecting their attachment and mental representation into adulthood.
Women with intellectual and developmental disabilities have nearly double the rate of having another baby within a year of delivering compared to women without such disabilities, according to a new study published in CMAJ.
Men who wear boxer shorts have higher sperm concentrations than men who wear tighter fitting underwear, according to new research published in Human Reproduction. The study differs from previous research on this topic because it includes a larger number of men (656) than previous studies, and because it is the first to go beyond the traditional, narrow focus on semen quality and include information on a variety of indicators of testicular function, such as reproductive hormones and sperm DNA damage.
Men who most frequently wore boxers had significantly higher sperm concentrations and total sperm counts when compared with men who did not usually wear boxers, according to new research led by Harvard T.H. Chan School of Public Health.
In countries which already permit embryo research, there are no 'compelling moral arguments' why the time limit for experimentation should not be doubled say ethics experts. This could enable synthetic embryos in the lab which can grow into humans, improved IVF treatment, the creation of 'organoid' models of human organs for replacement and research to allow infertile/same sex couples to have genetically related children.
The genetic screening of fertilized eggs for embryo selection in assisted reproduction makes no difference to live birth rates, according to results from the largest published study of its kind. Results from this multicenter randomized controlled trial are reported today in the journal Human Reproduction and, say the authors, confirm the 'widely accepted' view that preimplantation genetic testing for chromosome abnormality (PGT-A) will not increase live birth rates in IVF.
Pregnant women who had low plasma levels of long chain n-3 fatty acids in their first and second trimesters were at a significantly higher risk of early preterm birth when compared with women who had higher levels of these fatty acids, according to new research from Harvard T.H. Chan School of Public Health in collaboration with Statens Serum Institut in Copenhagen