Current Infertility News and Events

Current Infertility News and Events, Infertility News Articles.
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Mail-in sperm testing system just as reliable in predicting male fertility as tests performed in clinic settings
Keck Medicine of USC study shows that semen can accurately be tested up to 52 hours after being collected, offering men greater flexibility in how they provide sperm specimens (2021-02-11)

Some sperms poison their competitors
A genetic factor helps sperm cells outcompete their peers (2021-02-04)

Association of obstructive sleep apnea with risk of male infertility
A large health insurance database in Taiwan was used to investigate whether obstructive sleep apnea is a risk factor in male infertility and if treatment for sleep apnea is associated with risk. (2021-01-21)

Higher live birth rates found after transferring fresh rather than frozen embryos...
Leveraging national data from the Society for Assisted Reproductive Technology (SART), the Brigham researchers found that, in cycles using freshly retrieved donor eggs, fresh embryo transfers were indeed associated with significantly higher live birth rates compared to frozen embryo transfers. The team's findings are published in JAMA. (2021-01-12)

Keeping sperm cells on track
Researchers point to a new mechanism underlying male infertility. (2021-01-07)

Does a mother's pre-pregnancy weight affect her children's future fertility?
A recent study published in Acta Obstetricia et Gynecologica Scandinavica found that sons born to mothers who fell within the overweight range were more likely to be diagnosed with infertility during adulthood than sons of mothers with normal-range weight. (2021-01-06)

IVF boost: Monash researchers use acoustic waves to select high quality sperm
Monash University researchers have used acoustic waves to develop a new approach to separate high-quality sperm for assisted reproduction. These findings can open windows for infertile couples to have a family of their own using IVF. The procedure can process roughly 140 sperm per second and select more than 60,000 high-quality sperm in under 50 minutes - nearly four times faster than the current gold standard. (2020-12-04)

Researchers find 'missing link'
Otago researchers have found the ''missing link between stress and infertility''. (2020-12-03)

Molecular 'barcode' helps decide which sperm will reach an egg
A protein called CatSper1 may act as a molecular 'barcode' that helps determine which sperm cells will make it to an egg and which are eliminated along the way. (2020-12-01)

How to spot winning sperm: examine their racing stripes
Millions of sperm enter the race to fertilize, but only one wins the sprint to the egg. Now Yale researchers have discovered that these winning sperm possess a few key molecular characteristics that differentiate them from those left behind, they report Dec. 1 in the journal eLife. (2020-12-01)

Genetic determinants of fertility and ongoing natural selection in humans
A recent study presented at the ASHG 2020 Virtual Meeting suggests genetic variants may be associated with reproductive success. (2020-10-29)

Oregon researchers reveal why heat stress damages sperm
University of Oregon biologists have used the model organism Caenorhabditis elegans to identify molecular mechanisms that produce DNA damage in sperm and contribute to male infertility following exposure to heat. (2020-10-22)

Delivering proteins to testes could someday treat male infertility
According to the Mayo Clinic, about 15% of couples are infertile, and male infertility plays a role in over one-third of these cases. Often, problems with sperm development are to blame. Now, researchers reporting in ACS Nano have found a way to deliver a protein important for sperm cell production directly to mouse testicles, where it restored normal sperm development and allowed previously infertile mice to father pups. (2020-10-21)

Childlessness by circumstance
Why zebra finches have problems with reproduction. (2020-10-20)

RUDN University doctors suggested ways to reduce obstetrical complications in endometriosis patients
A team of doctors from RUDN University with their Italian colleagues had studied the data of existing studies on the effect of endometriosis on pregnancy and childbirth and suggested ways to reduce obstetrical complications in women with this condition. (2020-10-14)

Research identifies sperm biomarker associated with couples' pregnancy probability
Researchers at the University of Massachusetts Amherst have identified a single-measure biomarker in sperm mitochondrial DNA that may predict male reproductive health and pregnancy success. (2020-10-06)

Suspension of fertility treatments during COVID-19 has mental health impacts
The suspension of fertility treatments due to the COVID-19 pandemic has had a variety of psychological impacts on women whose treatments were cancelled, but there are several protective factors that can be fostered to help in the future, according to a new study by Jennifer Gordon and Ashley Balsom of University of Regina, Canada, published 18 September in the open-access journal PLOS ONE. (2020-09-21)

Partner selection ultimately happens in the woman's reproductive tract
The female reproductive tract has the final say in human mate choice, according to new research from the University of Eastern Finland. (2020-08-19)

Monkeying around: Study finds older primates father far fewer babies
Older male rhesus monkeys sire fewer offspring, even though they appear to be mating as much as younger monkeys with similarly high social status. Sperm quality or quantity, or the survival of infants, may decline with the age of the would-be father, the new study suggests. A new study from Washington University in St. Louis has implications for understanding some age-related aspects of male reproductive health in primates, including humans. (2020-08-03)

Healthy offspring from testicular tissue plantation in mice: Retinoic acid key
Germ cell depletion in recipient testis has adverse effects on spermatogenesis in orthotopically transplanted testis pieces via retinoic acid insufficiency. Repetitive RA administration significantly improved donor spermatogenesis to produce healthy offspring. (2020-07-16)

New test offers clarity for couples struggling to conceive
A male fertility test based on Cornell research could help predict which men might need treatment and which couples might have success with different forms of assisted reproduction. (2020-07-16)

No NELL2, no sperm motility; novel protein is essential for male fertility
An international team of researchers has identified a chain of events that matures the sperm and triggers their motility. The findings have implications for diagnostic and therapeutic research in male infertility and male contraceptive development. (2020-07-09)

Cancer treatment in young women need not mean the end of their fertility
The first long-term record of how cancer patients made use of their stored eggs and embryos after cancer treatment is presented today at the 36th Annual Meeting of ESHRE. The results demonstrate from the 20-year data how successful fertility preservation can be in these patients, especially those with breast cancer. Details of the analysis, covering the longest reported period of use, are presented today online by Dr Dalia Khalife at the virtual Annual Meeting of ESHRE. (2020-07-06)

Genetic analysis suggests distinct subtypes of polycystic ovary syndrome
Polycystic ovary syndrome (PCOS), an infertility disorder affecting at least 15% of reproductive-age women, may have at least two different subtypes, suggests a study funded by the National Institutes of Health. The findings could provide important information on the possible causes of PCOS and for developing more effective ways to treat the condition. (2020-06-23)

NIH-funded study links endometriosis to DNA changes
DNA from uterine cells of women with endometriosis has different chemical modifications, compared to the DNA of women who do not have the condition, according to researchers funded by the National Institutes of Health. The changes involve DNA methylation--the binding of compounds known as methyl groups to DNA--which can alter gene activity. (2020-06-17)

Pregnancy complications in assisted reproduction linked to a specific process
An experimental study from researchers in the Perelman School of Medicine at the University of Pennsylvania links a specific procedure -- embryo culture -- that is part of the assisted reproduction process (ART) to placental abnormalities, risk for preeclampsia, and abnormal fetal growth. The team, led by Marisa Bartolemei, PhD, a professor of Cell and Developmental Biology, published their findings today in Development. (2020-06-08)

Discovery of a novel gene involved in DNA damage repair and male fertility
A research group from the Institute of Molecular Embryology and Genetics (IMEG) at Kumamoto University, Japan has discovered that the gene C19ORF57 plays a critical role in meiosis. The gene appears to be related to the cause of male infertility and could be a big step forward for reproductive medicine. (2020-06-04)

New studies show how DNA crossovers can drive healthy, abnormal sperm, egg cell division
Human genetic diversity wouldn't be possible without DNA crossovers in egg and sperm cells. Two studies from Harvard Medical School provide new insights into how crossovers go right--and wrong, leading to infertility, miscarriages and birth defects. (2020-06-04)

Novel switch protein that 'turns on' sperm for fertilization
Researchers from Osaka University and Baylor College of Medicine discovered a signaling cascade in which the testicular protein NELL2 travels through the lumen to induce differentiation of the epididymis, secretion of the protease OVCH2, and subsequent sperm maturation. These findings will help in diagnosis and pharmacological research into infertility and male contraceptives. The study illustrates an intriguing lumicrine or transluminal signaling route that could function in several biological processes. (2020-06-04)

Malaria mosquitoes eliminated in lab by creating all-male populations
A modification that creates more male offspring was able to eliminate populations of malaria mosquitoes in lab experiments. (2020-05-12)

What are your chances of having a second IVF baby after fertility treatment for the first?
As the restrictions on fertility clinics start to be lifted and IVF treatment resumes, research published in Human Reproduction journal offers reassuring news to women who have had to delay their treatment for a second IVF baby because of the coronavirus. The study analysed data from women in Australia and New Zealand to assess, for the first time, their chances of having a second child with the help of fertility treatment. (2020-05-07)

A study by TalTech geneticists revealed new potential causes of female infertility
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. The findings suggest that these genes may play a far more complex role in oocyte maturation than previously assumed. (2020-05-06)

The ova of obese women have lower levels of omega-3 fatty acids
A study conducted by researchers from the UPV/EHU, Cruces Hospital, the IVI Clinic Bilbao and Biocruces Bizkaia shows that the oocytes of obese or overweight women have a different composition of fatty acids. This difference in levels could be linked to poor IVF outcomes and could suggest that the offspring of overweight women have an unfavourable environment even before conception. (2020-04-30)

Novel sperm membrane protein FIMP facilitates mammalian fertilization
Researchers from Osaka University have identified a new sperm membrane protein that facilitates the complex sperm-oocyte fusion that is fundamental to sexual reproduction, naming it Fertilization Influencing Membrane Protein (FIMP). Using genome editing technology to generate knockout mice deficient in specific genes, they confirmed its importance in addition to the three factors already known. This knowledge may help in the management of human infertility and advance the development of non-hormonal male contraceptives. (2020-04-16)

COVID-19 may impact treatment for patients with type 2 diabetes
Individuals with diabetes are at increased risk for bacterial, parasitic and viral infections. New research published in Endocrine Reviews, a journal of the Endocrine Society, illuminates how intersections of the coronavirus infection (COVID-19) and type 2 diabetes may require new approaches in treatment for hospitalized patients. (2020-04-14)

Study suggests marijuana may impair female fertility
Female eggs exposed to THC, the psychoactive ingredient in marijuana, have an impaired ability to produce viable embryos, and are significantly less likely to result in a viable pregnancy, according to an animal study accepted for presentation at ENDO 2020, the Endocrine Society's annual meeting. The abstract will be published in the Journal of the Endocrine Society. (2020-04-02)

Fracking chemical may interfere with male sex hormone receptor
A chemical used in hydraulic fracturing, commonly called fracking, has the potential to interfere with reproductive hormones in men, according to research accepted for presentation at ENDO 2020, the Endocrine Society's annual meeting, and publication in a special supplemental section of the Journal of the Endocrine Society. (2020-03-31)

Pregnant women's PFAS exposure linked to granddaughters' obesity risk
The first human study to link blood levels of 'forever' chemicals known as PFAS in pregnant women with the risk of obesity in their granddaughters is described in an ENDO 2020 abstract that will be published in the Journal of the Endocrine Society. (2020-03-30)

A critical enzyme for sperm formation could be a target for treating male infertility
Researchers led by Jeremy Wang of the University of Pennsylvania School of Veterinary Medicine have identified an enzyme essential for the process of male meiosis, the type of cell division that produces sperm. The protein, SKP1, controls one of the key transitions in meiosis. Understanding its role may help scientists develop new approaches to treating male infertility. (2020-03-25)

PLOS ONE: Online program more than doubled pregnancy rate for women with infertility
A study published in PLOS ONE showed that an internet-based version of Harvard's Mind/Body Program for Fertility achieved results similar to the in-person program, more than doubling pregnancy rates for women experiencing infertility, compared with a control group. The findings are significant because women in infertility treatment tend not to access in-person counseling and often give up on their dream of having a child. (2020-03-18)

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