Fatigue is a common symptom of endometriosis, affecting over half of diagnosed women, with links also found to childhood abuse and neglect. The study suggests that endometriosis may cause fatigue independently of other factors, possibly due to inflammation and immune system activation.
Researchers have developed a new tool that can work in both non-reproductive cells and egg-producing cells using the Gal4/UAS two-component activation system. The UASz vector has been shown to express about 4 times higher than UASp in the egg-producing system, overcoming previous limitations.
A recent study published in Human Reproduction found that women who consume more fast food and less fruit take longer to become pregnant. The research, which analyzed data from over 5,500 women, suggests that a diet rich in fruits and low in fast food can improve fertility and reduce the time it takes to get pregnant.
The LSD1 enzyme suppresses mitochondrial metabolism and slow-muscle genes, promoting glycolysis in fast muscles. Glucocorticoids promote LSD1 degradation, allowing for muscle fiber type differentiation.
Researchers at James Cook University have successfully developed a sperm freezing technique for African wild dogs, allowing for genetic diversity to be introduced without disrupting pack hierarchy. The technique has the potential to assist outbreeding efforts and maximize population management.
Researchers have found that exposure to ibuprofen during the first three months of fetal development results in a dramatic loss of ovarian germ cells, leading to reduced fertility. Studies suggest that prolonged exposure to ibuprofen may lead to long-term effects on women's fertility.
Researchers found that women following a Mediterranean-style diet before IVF had a 65-68% greater likelihood of achieving a successful pregnancy and birth compared to those with the lowest adherence. The study suggests that a healthy diet, such as the Mediterranean diet, may help increase chances of fertility.
A Japanese research group develops a method to induce ureteric buds from pluripotent stem cells and successfully reproduces the higher-order structure of the kidney. This achievement is a significant step towards regenerating functional kidneys, which could potentially treat millions of patients with chronic kidney disease.
Researchers have found hundreds of well-preserved pterosaur eggs, including 16 with embryonic remains, providing insights into their development and reproductive strategy. The study suggests that these flying reptiles may have needed parental care and engaged in colonial breeding.
Researchers found a strong link between low vitamin D concentrations and lower live birth rates after ART compared to those with sufficient levels. Women with adequate vitamin D were 34% more likely to have a positive pregnancy test and 46% more likely to achieve a clinical pregnancy.
A recent study published in Human Reproduction found that underweight women are at a greater risk of experiencing an early menopause compared to lean or normal weight women. Women who were underweight as teenagers or in their mid-30s had a significant increase in the risk of early menopause, with some women reporting a 50% higher risk.
A new study from UMass Amherst suggests that women who are underweight during adolescence or adulthood may be at increased risk for early menopause. The research, which followed nearly 80,000 women over 25 years, found a significant association between being underweight and an earlier onset of natural menopause.
A new study from UMass Amherst suggests that phthalate levels in expectant fathers can impact couples' reproductive success through epigenetic modifications of sperm DNA. The researchers found associations between certain phthalates and changes in sperm DNA methylation, which may influence early-life development.
A large nationwide study involving over 40,000 women found that fertility treatment does not increase the risk of divorce. The study, which followed couples for 16 years, revealed that the majority of couples had children with their baseline partners and around one-fifth ended up separated or divorced.
A study of single-mother-by-choice families found no differences in parent-child relationships or child development compared to heterosexual two-parent families. However, single-mothers-by-choice had a significantly higher social support network, which was valued as crucial for their well-being.
A study using artificial intelligence has found that automated embryo assessment systems are more accurate than those of embryologists, with a 76% accuracy rate. The system uses mathematical variables from time-lapse images to classify embryos automatically, reducing human error and improving predictive value.
A new study reveals that chromosomally 'abnormal' embryos can still result in pregnancy through IVF, with the potential for self-correction and development into a healthy fetus. The extent of mosaicism influences clinical outcomes, suggesting priority should be given to mosaic embryos with low aneuploidy levels.
Spain now holds the pace of European ART with over 100,000 cycles performed annually, resulting in a steady pregnancy rate of around 35%. The data collected by ESHRE also reveals that IVF remains more successful than ICSI, but pregnancy rates from egg donation continue to rise.
A large population study found that female cancer survivors are 38% less likely to achieve a pregnancy than women in the general population. The detrimental effect on fertility was evident in almost all types of cancer diagnosed, with variations between different cancer diagnoses.
A study has shown that an inexpensive fertility drug can be just as effective as more recent reproductive hormones in treating unexplained infertility. The 50-year-old drug, taken orally, was found to have a comparable pregnancy rate to newer hormones used in intrauterine insemination (IUI) with ovarian stimulation.
A higher number of eggs retrieved in IVF treatment is linked to more chromosomally normal embryos available for transfer. The benefit of a greater oocyte yield decreases with advancing female age.
A new study of almost 19,000 IVF treatment cycles reveals that the age of the male partner significantly affects live birth success rate. The study found a decline in cumulative incidence of live birth with increasing male partner age, particularly among women aged 30-35 and those over 40.
Researchers found that simultaneous genetic and chromosomal screening of a single biopsy improved pregnancy rates. The study used double genetic tests on cells taken from 1122 blastocysts, resulting in 99 pregnancies and 70 healthy births. This approach reduces the risk of implantation failure and miscarriage.
Couples adopting embryos in the US and New Zealand have formed extended family units, leading to over 500 births. Researchers found that open adoption systems enable children to learn about genetic factors and their place in the family.
Women who started their periods before age 12 have an increased risk of premature menopause, with no children amplifying the risk further. The study found that these women are up to five times more likely to experience premature or early menopause.
Research on dinosaur embryos shows that non-avian dinosaurs took 3-6 months to hatch, similar to reptiles. This finding suggests prolonged incubation may have affected their ability to compete with rapidly evolving bird populations, contributing to the mass extinction event.
Groundbreaking study establishes a timeline for dinosaur incubation, suggesting 3-6 months. Researchers analyzed dinosaur embryo fossils using CT scans and microscopes to determine growth lines on teeth.
A study published in BMJ Open found that many fertility clinics make unsubstantiated claims about treatments beyond standard IVF procedures. The researchers identified a lack of supporting evidence cited by websites and clinics, with only a few interventions having moderate quality evidence to support their benefits.
Research reveals that cells use a shared molecular network to respond to both chemical and mechanical cues, allowing them to combine conflicting signals into a unified path. This finding takes scientists closer to understanding biological processes like embryonic development, tumor metastasis, and wound healing.
A new online calculator estimates individualised chances of couples having a baby through IVF or ICSI, considering specific characteristics and treatment information. The tool provides cumulative chances over up to six cycles, helping clinicians communicate personalised chances to couples and shape their expectations.
New research suggests that food restriction increases levels of tumor-suppressing molecule p53 in mice and human hepatocytes. This p53-induction is required for fasting-induced adaptation of nutrient metabolism, offering new therapeutic concepts for metabolic diseases and cancer.
A five-year study found BioEYES significantly improves elementary, middle school, and high school students' science knowledge and positive attitudes towards science. The program increased students' ability to imagine themselves as scientists, with the greatest effect on attitude changes among younger students.
The study found that ICSI men had almost half the sperm concentration and a two-fold lower total sperm count compared to naturally conceived men. They were also nearly three times more likely to have sperm concentrations below 15 million per millilitre of semen.
Researchers have successfully created healthy baby mice by injecting sperm into embryos developed from non-egg cells, achieving a success rate of up to 24 per cent. This breakthrough challenges the long-held dogma that only egg cells can support embryonic development.
A randomized trial found that IVF culture media affect embryo quality, implantation rates, pregnancy rates, and birthweights. The study suggests that the exact composition of culture media should be listed to ensure transparency.
A large multicentre study found that freeze-all embryo protocols are associated with significantly improved IVF outcomes, particularly in women over 35. The study showed a 13% increase in ongoing pregnancy rates for these patients compared to traditional fresh embryo transfer methods.
A large randomized study found that a short period of bed rest after intrauterine insemination has no beneficial effect on pregnancy rates, contrary to previous small studies. The results suggest that immobilization after IUI may even hinder fertility in some cases, rendering recommendations for prolonged bed rest obsolete.
A study of 290 women found that lifestyle intervention preceding fertility treatment improved natural conception rates, particularly in anovulatory women. However, the intervention had no significant effect on fertility treatment outcomes or overall live birth rates in any subgroup.
A recent ESHRE study found that human growth hormone did not improve live birth rates in women having difficulty conceiving, with a clinical pregnancy rate of 14% in the treatment group and 11% in the placebo group. Poor responders are a challenging group to treat, accounting for up to 30% of patients who respond poorly to treatment.
A new approach to embryo assessment uses mitochondrial DNA quantification to identify viable embryos in IVF treatments. Studies have shown that embryos with unusually high levels of mitochondrial DNA rarely implant, supporting the use of this method as a marker of embryo viability.
A study of 51 solo mother families and 52 heterosexual two-parent families found no significant difference in child adjustment. However, higher financial difficulties and parenting stress were associated with child adjustment problems. Children reported generally positive feelings about family life and enjoyed school.
A Cochrane review suggests that endometrial scratching may be beneficial for couples trying to conceive naturally or with intrauterine insemination (IUI), increasing the chance of clinical pregnancy and live birth. The procedure involves a biopsy-like action on the uterine lining, which may create an environment more receptive to embry...
A survey of 15,000 women and men in Britain found that nearly half who experienced infertility did not seek medical help. The study also found that those who sought help were more likely to have higher educational qualifications and better job prospects.
Researchers have discovered a new IVF-based technique that significantly reduces the risk of mitochondrial disease in babies. The 'early pronuclear transfer' method involves transplanting healthy mitochondria into an embryo created using conventional IVF.
The report shows that ICSI use is approaching 100% in some regions, despite being developed for male infertility. The editor highlights the need to make decisions based on evidence, warning against unnecessary and costly care.
Scientists have developed a novel technique to study human embryo implantation, allowing for the first time to observe molecular and cellular processes up to day 14 after fertilization. This breakthrough expands understanding of human development and may shed light on early miscarriages and infertility causes.
A novel theory of animal evolution suggests that a biochemical oscillator named Life's Timekeeper controls cell maintenance and repair, determining cell longevity. This mechanism is believed to have driven the extension of cell longevity in animals, leading to the development of complex organisms.
A study published in Human Reproduction found that women with BRCA1 gene mutations have lower levels of anti-Müllerian hormone, indicating reduced ovarian reserves. This may impact fertility and suggest a need for earlier pregnancy planning.
The Society of Interventional Radiology presented its highest honor, the SIR Gold Medal, to Ernest J. Ferris, Ho-Young Song, and Robert L. Vogelzang for their innovative work in interventional radiology. The award recognizes distinguished service to SIR or to the discipline of interventional radiology.
A new study found that a single embryonic rule regulates hominin tooth size, with variations in the expression of this rule accounting for differences in tooth size throughout human evolution. The researchers discovered that the inhibitory cascade pattern for adult molars is directly linked to the size of milk molars.
Scientists have developed motorized spermbots that can deliver poor swimmers to an egg, improving chances of conception. The technique uses tiny metal helices controlled by a rotating magnetic field and has shown promising results in lab testing.
A new study led by King's College London found that splitting human embryos to produce twins for IVF may not be viable due to delays in development. The research suggests that a 'developmental clock' plays a critical role in earliest stages of human development, which can be interrupted by the splitting process.
A study of 41 Danish women who received ovarian tissue transplants found that the procedure is effective in restoring ovarian function and fertility in up to 10 years. The majority of patients (31%) became pregnant, with some even experiencing full-term pregnancies.
A large study found no benefit in IVF from routinely freezing all embryos before transfer, even among normal responders. This challenges the move to adopt a freeze-all strategy in IVF.
A study by Dr. Marta Devesa found that IVF cumulative live birth rates decline significantly with age, especially in women using their own eggs, with a 3% chance of success at 44 and over. In contrast, egg donation shows higher success rates, making it a viable alternative for older patients.
A survey of 34 couples found that those with siblings from the same donor preferred to use the same donor for subsequent conceptions due to a desire for genetic bonds and improved sibling relations. However, some couples prioritized the genetic link between mother and child over full sibling relationships.
The rate of ectopic pregnancy following IVF has decreased significantly over the past 12 years, from 20 cases per thousand cycles in 2000 to 12 cases per thousand in 2012. This decrease is largely attributed to advancements in ART techniques and a reduction in tubal factor infertility.
A study of 2 million women found that D&C performed for miscarriage or termination increases the risk of preterm birth by 29%, with a higher risk of 7.6% in subsequent pregnancies
A psychological evaluation of nine women who received a uterus from live donors indicates they adjusted psychologically well to their new life situation during the first year. Three of the seven remaining women have delivered healthy babies, with most reporting improved relationships with their donor and increased hope for a family.
A nationwide analysis of over 8,000 children conceived through ART found no difference in educational test scores compared to spontaneously conceived children. The study suggests that ART pregnancies, particularly twins, do not have a negative impact on academic performance in adolescence.