Researchers found semen volume increases with abstinence, but sperm morphology deteriorates over time. Abstaining for up to two days may be sufficient for some men undergoing fertility treatment.
Researchers found nearly a third of HIV positive male couples became parents through assisted reproduction, while only one out of ten HIV positive female couples were successful. The study's findings suggest HIV positive men may be more suitable candidates for fertility treatments due to lower infection rates.
A recent Italian study found that men exposed to high levels of traffic pollution have impaired sperm quality and reduced fertility. The research team examined semen samples from 85 motorway tollgate workers and 85 aged-matched controls, revealing deranged sperm parameters below World Health Organisation levels.
A recent study by French researchers found that nearly two-thirds of unplanned pregnancies occurred among women using effective contraception methods like the Pill and IUD. The study suggests that there is often a mismatch between a woman's contraceptive needs and the methods she uses.
Researchers from Italy studied over 14,000 births and found a significant disparity in sex ratios between optimal and sub-optimal reproductive conditions. The study suggests that nature tries to compensate for the vulnerability of male babies by favoring them in favorable months.
A study by US researchers found a significant association between high lead levels in seminal plasma and low fertilization rates. Lead was shown to interfere with sperm function, including binding to the egg and penetrating its coating. The findings suggest that lead may be a contributory factor of declining sperm counts.
A study of 97 healthy men aged 22-80 found significant age-related decreases in semen volume and sperm motility. Semen quality is a proxy for fertility, suggesting that men may become progressively less fertile as they age.
Researchers found that tamoxifen stimulation increased mature eggs and embryos compared to natural cycle IVF, with one patient already giving birth to twins. A larger study is planned to include low amounts of FSH for additional benefits.
Researchers have successfully transplanted immature mouse and rabbit testicular tissue, resulting in live births and mature sperm production. This breakthrough technique offers new hope for pre-pubertal boys and babies affected by cancer treatment, potentially restoring fertility through autotransplantation.
Women with endometriosis have a higher prevalence of autoimmune inflammatory diseases, hypothyroidism, fibromyalgia, chronic fatigue syndrome, allergies, and asthma. A 10-year delay between symptom onset and diagnosis is common, prompting doctors to consider endometriosis in girls and women with pelvic pain.
Researchers have developed a new treatment for fibroids using a combination of lasers and MRI, which has shown promising results in reducing fibroid volume and improving symptoms. The treatment has the potential to be an alternative to traditional surgery for selected patients, particularly those wishing to preserve their fertility.
Recent studies consistently demonstrate the increasing safety of third-generation oral contraceptives, particularly in reducing heart attack risks. The aggregated findings of seven studies involving nearly 6,500 women suggest that all current oral contraceptives are safe when used according to their regulatory labels.
A new needle-free device called J-Tip has been successfully used to administer hormones to women undergoing IVF treatment. The device enabled the retrieval of eggs from 16 out of 20 women, resulting in four pregnancies. Patient acceptance was high, with diaries indicating a clear preference for the needle-free approach.
A US team found that most healthy couples conceive within two years, and fertility in women declines as early as the late 20s. The study suggests delaying assisted reproductive techniques until a couple has failed to conceive naturally for 18-24 months.
Researchers found that women who survived childhood leukemia had smaller ovaries with fewer follicles, but their ovaries appeared to function normally. The study suggests that female childhood cancer survivors with an apparently normal menstrual cycle might have a shortened reproductive span.
A study found that smoking significantly decreases the success rates of assisted reproduction procedures in both IVF and ICSI. The number of pregnancies among couples receiving IVF treatment was lower when the male partner smoked, with women's egg retrieval capacity also reduced.
Researchers found that environmental oestrogens, such as genistein and nonylphenol, stimulate sperm development and motility, while natural oestrogen has no effect on capacitated sperm. This suggests a different mechanism of action for environmental oestrogens, which could have negative effects over time.
The International Federation of Fertility Societies (IFFS) has joined the European Society of Human Reproduction and Embryology in condemning Italy's restrictive fertility proposals. The legislation allows only three oocytes to be inseminated at a time, leading to concerns over multiple pregnancies and premature births.
A new study found that mothers of children born via surrogacy arrangements show warmth and emotional involvement, similar to those in naturally conceived families. Both parents also exhibit better parenting skills, while the babies' temperament remains unchanged.
A world-first study reveals that solo mothers opting for donor insemination are coping well and their children are functioning normally. Despite initial controversy surrounding single women's access to DI, the research shows no difference in parenting quality or child behavior between solo and married mothers.
The European Society of Human Reproduction and Embryology reports a trend towards more effective and safer treatments in Europe, with a reduction in embryos transferred per cycle. This has led to increased pregnancy rates despite higher multiple births.
French fertility experts analyzed nearly 25,000 pregnancies, finding that babies in multiple pregnancies face significant risks of prematurity, mortality, and disability. They called for a reduction in multiple births through better embryo selection and monitoring to mitigate these risks.
Researchers found that chromosomal abnormalities in embryos were a common cause of unexplained recurrent miscarriages and implantation failure. By using Preimplantation Genetic Diagnosis (PGD), normal embryos can be selected for transfer, leading to similar pregnancy rates as fertile women.
A recent review by the European Society of Human Reproduction and Embryology found that while there is a slightly higher risk of major birth defects after ICSI and IVF, the absolute risk is small. Additionally, new research has shown that ICSI children have normal development by the time they start school.
The European Society of Human Reproduction and Embryology has expressed deep concern over Italy's proposed policies on frozen embryos, which they claim are unethical and put women at risk. The proposals, set to be reviewed by the Italian Senate, limit embryo transfer to single births, posing significant risks to mothers and babies.
A US-Italian study found that women's fertility starts declining before age 30, but not necessarily their overall chance of pregnancy. Meanwhile, men's fertility also begins to decline in their late 30s, but the duration of the fertile window remains unchanged.
A unique Icelandic study reveals a significant genetic component to endometriosis, with affected women being more interrelated than control groups. The research suggests that women at risk may benefit from earlier pregnancy or diagnostic tests.
Researchers James E. Darnell and Ali H. Brivanlou propose a reclassification of all known transcription factors, grouping them by their behavior rather than physical structure. This framework aims to provide a better understanding of how cells 'read' genetic instructions and may lead to new drug therapies for diseases such as cancer an...
A prospective study found that women with Factor V Leiden mutations had low live birth rates compared to those without the mutation. The research suggests that targeted anti-blood clotting treatment may be beneficial for these women, and screening is recommended.
Researchers found that maternal serum HCG levels are nearly a fifth higher when carrying a girl than a boy less than three weeks into pregnancy. The study also revealed that these early differences are due to the placenta expressing proteins differently in female pregnancies.
A large study of nearly 40,000 women in Denmark found that moderate drinkers became pregnant faster than non-drinkers. However, high alcohol intake was related to longer waiting times, particularly among older women and those who smoked or were overweight.
Researchers found that women taking oral contraceptives showed no change in their ability to detect odors, compared to the natural clime of the luteal phase. The study suggests that iatrogenic steroids may affect changes in smell sensitivity, and further research is needed to investigate this phenomenon.
A quadruplet pregnancy resulted from IVF and spontaneous conception, highlighting the risks associated with unprotected intercourse during ovarian stimulation. The woman gave birth to a boy and two girls with separate placentas and another girl with fused placenta after undergoing multiple pregnancies were deemed medically undesirable.
Researchers developed a new algorithm called TwoDay, which uses vaginal dampness as a predictor of fertility. Women can reduce pregnancy risk by avoiding unprotected sex for 2 days after noticing vaginal dampness.
Researchers found AAV DNA in 38% of men with abnormal semen analysis, but only 4.6% of those with normal semen. Further studies are needed to assess the link between AAV and infertility.
UK researchers have made significant progress in preserving fertility for women with cancer by grafting ovarian tissue from cancer patients into mice, demonstrating safety and feasibility. The study has raised hopes for women who require immediate treatment or lack a partner, offering an alternative to embryo freezing.
Scientists at the University of Illinois have developed a novel laser technique to study chromatin movement in living cells. By measuring the movement of DNA, they found evidence of subdiffusion within the cell nucleus, suggesting that molecular crowding is crucial for life.
Research reveals heritability plays a major role in determining the age of menopause, with significant implications for women delaying childbirth beyond 30. Genetic analysis suggests that a woman's store of eggs declines throughout life, triggering menopause.
Researchers found a connection between a specific gene variation and recurrent miscarriages, with women carrying the variation having a 1.6-fold increased risk of pregnancy loss. The study suggests that nitric oxide plays a mediating role in early pregnancy and may be linked to impaired placental function.
Two new antiprogestin drugs show promise in reversible suppression of menstruation in rhesus macaque monkeys. The treatments block effects of estrogen on the uterus, preventing build-up of endometrial cells and potentially reducing symptoms of endometriosis. This could lead to relief for women suffering from distressing complaints.
A new study reveals that exposure to pesticides and solvents in men is associated with lower sperm threshold values and changes in hormone concentrations, particularly affecting primary infertility. The research highlights the potential impact of environmental factors on male reproductive health.
Researchers have developed a pre-conception sex-sorting technique that significantly increases the number of female embryos available through IVF. The MicroSort technology, which uses flow cytometry, has shown a 9 out of 10 chance of biopsied embryos being female, benefiting couples with X-linked disorders.
A study by Israeli fertility experts found that a quarter of women and two husbands had abnormal chromosomes, leading to repeated embryo implantation failure. The researchers are calling for an international registry to be established to record chromosomal aberrations in infertility patients.
The European Society of Human Reproduction and Embryology is advocating for testosterone therapy in older men due to the increasing prevalence of age-related symptoms such as low energy, depression, and erectile dysfunction. Testosterone replacement therapy has been shown to alleviate these symptoms, particularly in men over 50 years old.
A recent study published by the European Society of Human Reproduction and Embryology found that women who smoke more than 10 cigarettes a day have a significantly lower chance of IVF success. The implantation rate for non-smokers was 22.7%, compared to 15.1% for women smoking over 10 cigarettes a day.
Couples seeking preimplantation genetic diagnosis (PGD) for single gene disorders or to avoid chromosomal abnormalities have differing views on embryo destruction and genetic trait selection. The study found that most couples prioritize having a healthy child over preventing genetic transmission of inherited mutations.
The number of multiple births per embryo transfer decreased from 29.6% to 26.3% in Europe between 1997 and 1998. The proportion of twin deliveries fell from 25.8% to 23.9%, while triplet births declined from 3.6% to 2.3%.
Researchers found that raloxifene stimulates cell growth in ovarian adenocarcinoma cells with estrogen receptors, increasing the risk of recurrence. The study suggests caution for women with a history of breast cancer and estrogen receptor-positive ovarian cancer.
Researchers found that Raloxifene stimulated the growth of ovarian cancer cell lines, raising concerns about its use in ER+ patients. The study advises caution when prescribing Raloxifene to women with a history of breast cancer and ovarian cancer.
A new study, involving over 400 families from four European countries, has found no evidence of emotional problems among ART parents. The research also revealed that ART fathers have a warmer and less authoritarian relationship with their children.
Scientists have found that teenage girls with Turner's syndrome still possess follicles in their ovaries, which may enable them to produce eggs. This breakthrough discovery provides a glimmer of hope for these women who are usually infertile due to the syndrome. Further research is needed to confirm the findings and explore the possibi...
A new study has found that children conceived through assisted reproduction have stable and satisfying marriages, psychologically healthy parents, and well-adjusted children. The research also suggests that the absence of a genetic link between fathers and children does not interfere with developing positive relationships.
Researchers have discovered a potential cause of male infertility, identifying the ZNF214 gene as a candidate gene. The gene is linked to impaired spermatogenesis and may be inherited from mothers. Further research will help understand its role in sperm production and develop targeted treatments.
Researchers have successfully used frozen ovarian tissue to induce live births in large mammals, including lambs. The study offers a promising solution for women who become infertile due to cancer treatments, providing an alternative to traditional fertility preservation methods.
A recent study by Dr. Gianpiero Palermo and his team found that ICSI children are developing normally, with no significant delays in cognitive abilities, socio-emotional development, or motor skills. The study contradicts previous concerns about the ICSI technique's impact on babies' development.
A UK doctor suggests that preventing coronary disease begins with the fetus's growth and nutrition. The
A new syndrome, Testicular Dysgenesis Syndrome (TDS), is being linked to declining male fertility rates, testicular cancer, and reproductive issues in men. TDS may be caused by genetic or environmental factors, resulting in maldeveloped testes and a range of symptoms including undescended testicles, hypospadias, and poor semen quality.
Researchers have developed a new fertility test kit that measures natural levels of fertility in couples trying to conceive. The kit assesses the concentration of motile sperm in men and follicle-stimulating hormone (FSH) levels in women, providing an early warning system for potential infertility issues.
Research published in Human Reproduction has shown that ovarian stimulation impairs embryo development and implantation in mice. Only 12% of embryos from superovulated mice implanted compared to 25% from control donors, highlighting adverse effects on both quality and fetal development.
Researchers have developed a new test, SUTI, that can accurately diagnose male infertility by detecting high levels of ubiquitin antibodies on the surface of sperm cells. This method could lead to more accurate diagnoses and targeted treatment for couples struggling with infertility.