Articles tagged with Embryos
Researchers found that treating women with Lactobacillus gasseri supplements or postbiotics improved fertility among those over 35. The study showed higher endometrial abundance of Lactobacillus bacteria in pregnant women, suggesting a beneficial effect on uterine health.
A new Cochrane review analyzed 11 studies involving 2,524 women undergoing embryo transfer, finding no reliable evidence that preparatory techniques improve IVF success rates. The techniques examined included straightening the utero-cervical angle and removing cervical mucus before transfer.
Researchers at KAIST have developed a groundbreaking oocyte and embryo analysis technology using holotomography to predict developmental potential in IVF. This non-invasive method could revolutionize the selection of embryos for transfer, offering a more objective and quantitative approach.
A new Europe-wide survey found broad public support for fertility treatment and reproductive research in the UK, Netherlands, Spain, and Italy. The study suggests that public understanding and opinion on these topics continue to develop, with areas where public views are not yet settled identified.
A genome editing technique called base editing has been used to study the role of a master gene in human embryonic cells, revealing its crucial function in early development. The technique allows scientists to alter a single gene in human embryos, enabling them to better understand how human embryos develop.
Research finds that advanced maternal age reduces autophagy in embryos from aged female mice, leading to impaired embryonic development. Supplementation with Rapamycin improves early embryonic development by regulating metabolic pathways.
An international team published a white paper on embryonic models based on stem cells, proposing guidelines for research and regulation. These models can mimic early human development stages, potentially aiding in understanding infertility conditions.
Researchers at ISTA uncovered why keratin plays an essential part in embryonic cell movement and organization. Without keratin, the process slows dramatically, leading to tissue collapse and loss of cellular alignment. Keratin helps maintain the structural integrity and cohesion of cells during early development.
An international analysis found that intrauterine administration of human chorionic gonadotropin (hCG) before embryo transfer does not increase pregnancy or live birth rates. The study urges patients and clinicians to rethink the commonly offered IVF add-on, citing concerns about unreliable trial data.
The EMBL-IBEC conference brings together experts to discuss recent breakthroughs in multicellular living systems, including organoids and embryonic development. The event will focus on disease modeling, developmental biology, and regenerative medicine applications.
Researchers at ISTA have found that the zebrafish embryo's geometry is essential for its development, guiding cell division and gene activation. The study's findings could improve IVF embryo assessments by understanding how the embryo interprets its geometry.
Researchers used light-inducible gene expression to demonstrate that gastrulation in human embryos requires an interplay between chemical cues and mechanical forces. The study found that mechanical tension fine-tunes downstream biochemical signaling pathways, leading to the formation of body axes.
A new study found that embryo arrest in IVF is more common with advancing maternal age but not directly related to chromosomal abnormalities. The research suggests two independent factors contribute to the number of euploid embryos available for transfer and overall ART success.
Researchers at the University of Cambridge have developed a new lab-grown human embryo model that replicates early human development, including the production of blood stem cells. The 'hematoids' model mimics the natural developmental process, offering potential medical advances in screening drugs and studying blood disorders.
Researchers developed a technique to study embryonic implantation in mice by keeping mouse uterine tissue alive outside the body. The method showed over 90% efficacy for implantation and provided insights into the maternal-embryonic signaling process.
Researchers at Cornell University have discovered genetic triggers that cause male and female bovine embryos to develop differently. Male embryos prioritize genes associated with energy metabolism, leading to faster growth, while female embryos emphasize genes related to sex differentiation and inflammatory pathways.
Researchers developed a new microfluidic method to preserve worm anatomy, linking lipid signals with body structure using mass spectrometry imaging. They identified several lipids clustering in distinct anatomical regions, providing insight into how fat molecules are organized and function across the worm.
Researchers developed an automated sorting system to isolate individual gastruloids, enabling studies of embryonic development and genetic diseases. The system uses a claw-like mechanism to sort microrafts with cells, facilitating large-scale screening and analysis.
Researchers at the Francis Crick Institute investigated epigenetic changes in marsupial embryos, finding that DNA demethylation is not universally required for early mammalian development. Instead, this process may have evolved specifically to help form the placenta.
Researchers at UCL and the Francis Crick Institute have identified the origin of cardiac cells using 3D images of a heart forming in real-time. They found that cardiac cells emerge rapidly during gastrulation and follow distinct paths to form the heart's pumping chambers and atria.
A study led by Helmholtz Munich found that epigenetic programs play a crucial role in DNA self-organization in early embryos. The researchers discovered multiple parallel regulatory pathways controlling nuclear organization, which can self-correct errors even after the first cell division.
Researchers discovered toxic zinc in glassware used for in vitro fertilization (IVF), which inhibited embryo development. By adding chelating agent EDTA or thoroughly cleaning glassware, embryotoxic effects of zinc were reduced.
Researchers at CRCHUM used single-cell RNA sequencing to study guinea pig pre-implantation development, finding striking similarities with early human embryogenesis. The discovery opens new possibilities for understanding women's infertility and developing therapeutics for healthy pregnancy.
A new study by the University of Plymouth investigated the effect of changing global climate conditions on Christmas Island's red crab embryos. The researchers found that lower salinity levels did not delay embryonic development, but emphasized the need for further research to understand the species' response to environmental stressors.
A new study in rodents reveals that oxytocin can delay an embryo's development for days to weeks after conception, a phenomenon known as diapause. This finding may offer new insights into pregnancy and fertility issues faced by humans.
Researchers at the University of Montreal Hospital Research Centre discovered that sister cells in mouse embryos can communicate through a stable cytoplasmic bridge, leading to coordinated cell death. This mechanism may help eliminate defective or unneeded cells, improving fertility and developmental processes.
A Chinese trial suggests that fresh embryo transfer may have a higher live birth rate than frozen embryos in women with low IVF treatment success. The study found lower rates of pregnancy and live births in the frozen group, but no differences in birth weight or complications.
A new AI-powered software, EmbryoNet, can automatically detect defects in animal embryos and link them to underlying signalling pathways. This technology has the potential to replace lengthy animal studies in drug research, speeding up conventional processes while reducing costs significantly.
A team of researchers has developed a theoretical model forecasting the ideal body plan of a fruit fly's early embryo, indicating that evolution might have had many optimal options. The study suggests that optimization is a key driving force in nature, with biological systems often having multiple optimal solutions for the same problem.
Researchers discovered a neural mechanism that governs fish embryo hatching through the neurohormone TRH. This finding reveals that embryos are not passive but actively make life-or-death decisions, offering new insights into neurobiology and environmental adaptation.
Researchers at Osaka Metropolitan University found that suppression of Pcdh8 is essential for proper notochord elongation in zebrafish embryos. This study may lead to novel tumor therapies in humans due to the gene's role in controlling cell proliferation.
Researchers at Niigata University successfully generated rat offspring from ovarian oocytes transplanted into mice, overcame previous challenges in producing fertilized eggs and embryos.
A study by Radboud University Medical Center found that IVF success rates are the same whether embryos are transferred on day three or five after fertilization. This allows couples to make a personal decision about the timing of embryo transfer with their doctor.
A new method called VitelloTag has been developed at the Marine Biological Laboratory, allowing researchers to deliver miniature research tools into egg cells and embryos. The approach uses a yolk protein found in most animals to bind to the receptor on the egg cell surface, enabling efficient delivery of CRISPR-Cas9.
A novel 3D imaging model has been introduced to identify features of blastocysts associated with successful pregnancies, potentially transforming current IVF selection methods. The study found that parameters related to size and specific features of the inner cell mass and outer layer are linked to higher pregnancy rates.
The UK has released a pioneering Code of Practice for the use of stem cell-based embryo models in research, providing standards for rigorous ethics and maximizing benefits. The code sets out processes for decision-making in research using these models, allowing scientists to proceed confidently while maintaining public trust.
A study published in PLOS Medicine found that children born via frozen embryo transfer have similar metabolic profiles to those born via fresh embryo transfer. The research compared over 4,000 children aged 2-5 years and found no differences in blood glucose, insulin, or cholesterol levels.
A new study reveals that a type of childhood leukemia has its roots in fetal development, with chromosomal alterations detected in umbilical cord blood. The findings have important implications for understanding the disease and developing new therapies.
A new method has been developed to control the movement of embryonic cells by manipulating short-time attractors, which can be used to create synthetic organs and aid regenerative medicine. By modulating the spatial distribution of myosin, researchers were able to direct cell accumulation to targeted areas of the embryo.
A recent study published in Nature Cell Biology found that increased hydrostatic pressure can hinder the healthy development of neural crest cells, leading to an increased risk of facial malformations. The researchers suggest that physical cues in the womb, such as pressure, may play a role in shaping facial features.
The study reveals two distinct modes of endosomal fusion: homotypic fusion, where small vesicles fuse rapidly, and heterotypic fusion, where large vesicles absorb endosomes. Mathematical analysis and experiments suggest that actin dynamics plays a crucial role in promoting homotypic fusion.
A new study emphasizes the importance of strict legal rules governing fertility treatment in the UK, warning that recent court cases could create a common law exception to informed consent. The research highlights the need for rigorous consent regimes to protect vulnerable patients from exploitation and misuse of genetic material.
Scientists at University of California San Diego have developed a noninvasive approach to detect exRNA molecules in leftover culture media, which can help predict embryo quality and IVF success. By analyzing these molecules, the researchers were able to replicate morphological measurements used in current embryo tests.
Scientists at Niigata University successfully produced marmoset eggs and embryos from xenotransplanted ovaries, offering a new method for generating genetically modified marmosets. The novel egg production system is expected to facilitate research into human diseases and contribute to regenerative medicine.
Researchers at the University of Pittsburgh have developed a novel embryo-like model, heX-Embryoid, which replicates key features of early human development, including blood cell generation. The model has been shown to produce structures similar to blood islands and detect progenitors of red blood cells, platelets, and white blood cells.
A study of 2,433 women who received in vitro fertilization treatment found that delaying frozen embryo transfer for at least six months after a preceding clinical pregnancy loss was associated with beneficial pregnancy outcomes. This delay resulted in improved rates of live births and healthy pregnancies.
A foundational public dialogue project in the UK found broad public support for extending the 14-day rule on human embryo research, which aims to inform future policy development and research governance. The project engaged diverse participants to consider early human embryo research and its applications.
A recent analysis found that assisted reproductive technology cycles using a gestational carrier resulted in higher live birth rates and an increased risk of twins. Despite national recommendations, more than one-quarter of embryo transfers involved two or more embryos, highlighting the need for improved guidelines.
A recent study published in The Lancet found that home-monitoring during IVF is just as effective as hospital checks, with similar pregnancy rates and fewer complications. This approach also reduces costs by up to 80% and has numerous environmental benefits.
Researchers have identified a genetic cause for virgin birth in female flies, allowing them to reproduce without males. The ability is passed down through generations of females and can be induced in an animal that usually reproduces sexually.
A large randomized clinical trial found that culturing embryos for three days versus five days in the lab has no significant impact on live birth rates. Women's age affects outcomes, with younger women aged under 36 experiencing better results from cleavage-stage transfers.
Researchers have discovered that gene editing technologies may introduce unintended mutations and damage to DNA in early human embryos. The study found that most cells repair breaks in the DNA using non-homologous end joining, which can lead to additional genetic abnormalities.
New research from Duke University reveals that warmer temperatures increase the number of germ cells, which play a crucial role in determining the sex of turtles. This finding may explain why temperature-dependent sex determination persists in many animals, despite seeming like a risky strategy.
Researchers discovered that ZC3H11A is essential for regulating metabolic genes in embryos and their absence leads to complete lethality. The study's findings suggest that ZC3 may be a promising therapeutic target for the development of anti-viral agents against medically significant human viruses.
Researchers developed EmbryoNet, an automated image analysis software that uses AI to detect and classify developmental defects in fish embryos. The software outperforms human experts in terms of speed and accuracy, making it a valuable tool for investigating the mechanisms of drug action and studying embryonic development.
Scientists have developed a new microfluidic sperm selection device to improve IVF success rates. The device replicates the natural sperm selection process, resulting in an 85% improvement in DNA integrity and a 90% reduction in sperm cell death.
A new IVF method using time-lapse monitoring has been found not to improve pregnancy rates or shorten the time it takes to get pregnant. The study, which evaluated 1731 patients over a year, also found that this approach does not lead to extra costs or benefits.
Researchers have found that embryos in pregnancies ending in miscarriage take four days longer to develop in the womb than those in live births. This delay is associated with a higher likelihood of miscarriage and may be used to estimate pregnancy outcomes.
Researchers from Kumamoto University found that synchronizing ovulation and mating in
A study published in The FASEB Journal suggests that feeding pregnant mothers a combination of four nutrients before and during pregnancy can reduce the incidence and severity of fetal alcohol spectrum disorders. These nutrients include folic acid, choline, betaine, and vitamin B12.