Researchers have discovered six new antitumor compounds that are more effective against cancerous cells while minimizing harm to healthy cells. The study, conducted at the University of Granada, uses a new technique called Microarrays to identify the effects of drugs on genes.
Research shows that diabetic men's sperm have greater levels of DNA damage, which may affect fertility. Sperm from diabetic men had higher fragmentation rates and more deletions of DNA in mitochondria compared to non-diabetic men.
Scientists have developed a novel technique for in vivo imaging of neuronal function using bioluminescence, enabling the monitoring of calcium activity in neurons or the brain as a whole. This approach has been validated by recording neurons in the ellipsoid body and demonstrates its sensitivity and ability to study all brain structures.
Research found that pregnant women who ate more than seven beef meals a week had sons with lower sperm concentrations and higher rates of sub-fertility. The study suggests a link between maternal beef consumption and reduced fertility in sons, potentially due to the presence of anabolic steroids and other xenobiotics in beef.
A study of 47,835 Danish couples found that being overweight or obese increases the likelihood of delayed conception. The researchers found a higher risk of sub-fertility for both men and women, particularly for couples where both partners were overweight.
Researchers found that consuming whole fat milk and eating ice cream reduces the risk of anovulatory infertility in women trying to become pregnant. In contrast, a diet consisting of low-fat dairy products increases the risk by up to 85%. Women are advised to switch from low-fat to high-fat dairy foods to improve fertility.
A new study found that a natural family planning method called symptothermal method (STM) is as effective as the contraceptive pill in preventing unplanned pregnancies when used correctly. The STM method uses two indicators to identify the fertile phase in a woman's menstrual cycle and has an unintended pregnancy rate of 0.4% per year.
Stem cells in fruit fly gut use Notch signaling to replenish specific cell types, with Delta protein controlling cell fate and division. This finding transforms basic understanding of stem cells and could prove valuable in cancer research.
The Carnegie Institution has been granted a patent for the manufacture of hard, single-crystal diamonds through a Microwave Plasma Chemical Vapor Deposition (MPCVD) process. The inventors' work has led to diamonds with increased hardness and enhanced optical characteristics.
Research published in Human Reproduction found that heavy smoking significantly lowers pregnancy rates among women who received donated oocytes, regardless of their own ovarian function. Heavy smokers had a lower chance of achieving pregnancy but higher multiple birth rates compared to non-heavy smokers.
A study of over 800 twin pairs found that premature ovarian failure was three to five times greater in twins at ages 40 and 45 compared to the general population. This finding applies to both identical and non-identical twins, with a significant association observed between twin disparities in menopausal ages.
Researchers will examine the scientific, social, cultural and organizational contexts that have shaped embryology as a science. The project aims to provide a rich description of embryo research over key periods of its history and analyze agents of change.
A study by Professor Jansen found that improving culture conditions and nutrition coincided with an increase in monozygotic twinning rates. The best way to minimize MZ and DZ twinning is to transfer one embryo at a time, regardless of the mother's age.
Men who undergo vasectomy reversal have a significantly higher rate of chromosomal abnormalities in their sperm compared to fertile men. The study found that the duration of obstruction and time interval after reversal are associated with increased abnormality rates, raising concerns about potential long-term effects on fertility.
A new study found that dopamine agonist cabergoline reduces hemoconcentration, ascites, and moderate to severe OHSS incidence in women at risk. The treatment could lead to better understanding of the mechanism of OHSS development and effective treatment options.
The European Society of Human Reproduction and Embryology reports that assisted reproductive technologies (ART) have led to the birth of over 3 million babies worldwide. The number of ART cycles has increased by 100,000, with the total estimated at one million a year, resulting in approximately 200,000 ART babies born annually.
A study found that improving education on the risks of twins improved IVF patients' understanding and reduced their desire for multiple births. However, despite increased knowledge, many patients still prefer to have twins due to a desire to complete their family quickly with minimal treatments.
Researchers found that a single dose of Taxol had induced significant testicular weight loss compared to the control group. However, an injection of AS101 a day before Taxol prevented this damage. The study suggests that immune reaction to treatment causes additional testicular damage.
A study found that cognitive behavioural therapy can restore ovulation in infertile women by reducing cortisol levels and improving the hypothalamic-pituitary-thyroid axis. The therapy was effective in reversing stress-induced ovulation, offering a cost-effective and safe alternative to hormonal treatments.
A recent fraudulent attempt at IVF treatment highlighted the need for improved patient identification methods. The study found that 37% of clinics experienced or suspected cases of patient identity fraud, with many lacking adequate safeguards.
Researchers discovered higher concentrations of nitric oxide in the seminal plasma of infertile patients compared to healthy men. High NO levels were correlated with greater sperm DNA damage, while low NO levels improved sperm motility.
A recent study by Dr. Wolfgang Paulus found no increased risk of congenital abnormalities in children born to mothers taking the antidepressant paroxetine during early pregnancy. The researchers suggest that a reliable pharmaco-vigilance system is crucial for documenting fetal outcomes, but more funding and support are needed.
A new method of testing eggs for abnormalities could solve problems of embryo freezing, reducing the risk of miscarriages in women undergoing IVF. The technique analyzes the first polar body to identify viable eggs, resulting in lower early miscarriage rates and improved implantation potential.
Researchers found that IVF embryo culture can alter the expression of imprinted genes, potentially leading to abnormalities such as Beckwith Wiedeman syndrome. The study suggests that modifying culture media and oxygen concentrations may improve gene expression.
A study found a slightly higher rate of major congenital malformations in ICSI children compared to spontaneously conceived children. However, most malformations were minor and corrected by surgery. The researchers also found no significant differences in physical or neurological development between the two groups.
A new egg freezing technique called Cryotop method has been developed, achieving a more than 90% survival rate for frozen-thawed eggs and a high pregnancy rate of nearly 42%. The process involves rapid freezing in a tiny amount of special vitrification solution, preventing ice crystals from forming damage to the egg. This technology op...
Researchers have developed a new test to detect rare genetic mutations in families at risk of passing on hereditary cancers like FAP. The innovative test allows for precise detection of mutations, enabling couples to make informed decisions about their pregnancies.
Egg donation for stem cell research is a contentious issue, with concerns over informed consent, health risks, and distributive justice. Researchers have developed guidelines to balance bioethical principles and reduce risks for donors, exploring alternative sources of eggs and incentivizing participation.
The accelerated decline in fertility over the past 2.8 million years is an evolutionary adaptation that helped humans survive. However, this shift has created challenges for modern society, particularly in regards to teenage pregnancy, delayed childbearing, and hormone replacement therapy.
A new study shows that the quality of an embryo is more important than the age of a woman in determining IVF success. In older women aged 36-39, single embryo transfer (eSET) was found to have similar pregnancy and live birth rates as double embryo transfer.
A study of over 845,300 pregnancies found a three-fold higher risk of placenta praevia among mothers who had conceived both naturally and through ART. The increased risk may be directly related to reproductive techniques used, including embryo placement methods.
Researchers discovered a gene mutation in zebrafish that leads to impaired fat and cholesterol absorption, causing lethal effects. The study provides valuable insights into the process of lipid digestion and metabolism, potentially leading to treatment for human diseases.
Researchers have discovered that adult fruitflies have the same stem cells controlling cell regulation in their gut as humans do. This finding is significant for understanding digestive disorders, including some cancers, and developing cures. The similarity between insect and human gut stem cells suggests a common evolutionary origin.
Research reveals a novel role of serotonin transporters in controlling left-right asymmetry, with implications for embryonic development and potential side effects of certain antidepressant medications. The study also highlights the importance of dynamic serotonin movement within cells.
A study by Swedish researchers found that nearly all women wanted children, but only 3% preferred to delay their last birth until between 35 and 39. Many women also delayed their first child until their 40s. The study highlights the need for increased awareness of age-related decline in female fertility.
The study reveals a sharp decline in sperm donor applications, with only 3.63% of applicants accepted as suitable donors. The researchers call for urgent action to attract more volunteers, particularly from older men and minority ethnic groups.
A European study found that PCBs and DDT may damage sperm DNA, leading to higher levels of DNA fragmentation in men exposed to high levels of these pollutants. However, the researchers found no dramatic effects on human fertility and emphasized the need for further research.
Researchers successfully transplanted whole ovary from frozen-thawed sheep into the same animal or another, showing long-term ovarian function. The technique could become a treatment for women facing premature ovarian failure and potentially revolutionize organ transplantation.
A new study by the European Society of Human Reproduction and Embryology found no correlation between psychological stress and IVF success rates. The research, based on extensive questionnaires, showed that patients' well-being prior to treatment had no impact on their chances of conceiving.
Scientists at MIMR have identified adult stem cells in the uterus, which could lead to new treatments for conditions like pelvic floor prolapse. The discovery may also aid in understanding how diseases of the uterus develop and further general studies into adult stem cells.
A study of 360 women with borderline ovarian tumours found that conservative surgery can preserve fertility, especially for younger women with unilateral BOT. However, the recurrence rate was high at 16.6% over an average 70-month period.
A major population study examines the impact of maternal factors during pregnancy on PCOS development. The research suggests that high maternal weight in late pregnancy and reduced fetal growth are associated with irregular periods and more severe PCOS symptoms in adulthood.
A report from the ESHRE committee reveals a significant rise in ICSI cycles, overtaking IVF techniques as the most commonly used assisted reproductive technology. The increase in ICSI cycles may be linked to shifting causes of infertility, with male subfertility potentially on the rise.
A European study found that multiple pregnancies have a significant economic impact, with costs estimated at over €60m annually. The study suggests that preventing multiple births through single embryo transfer can reduce these costs and improve outcomes for mothers and babies.
A study found that IVF's benefits, including increased live births and reduced multiple births, outweigh its costs. The 'production' cost of a pregnancy rose from €14,000 to €22,000 between 1994 and 2002.
Research by Professor de Swiet reveals that women over 35 face a higher risk of maternal mortality, pulmonary embolism, and chronic health problems. He advises women seeking motherhood between 25-35 years old for the best outcomes.
A study of 840 Italian couples found that the new law led to a significant reduction in embryo storage options, with 77.7% opting for disposal or donation. The law's impact on pregnancy rates is also being questioned, with some doctors citing reduced success rates due to the prohibition on embryo freezing.
A recent study by the European Society of Human Reproduction and Embryology found that while Beckwith-Widermann syndrome had a significant risk for children conceived through ART, no significantly higher rates of other disorders were observed in children born after ART apart from BWS. The researchers also identified a possible mechanis...
A study found that damage to sperm DNA significantly increases with age, particularly in men over 45 years old, affecting their fertility potential. Researchers highlight the importance of assessing DNA damage in older men seeking fertility treatment.
Researchers have made history by cloning human embryos using matured lab-grown eggs and non-autologous nuclear transfer. Eighteen out of 25 in vitro matured oocytes survived the process, with 11 developing into pronuclei.
A study published by the European Society of Human Reproduction and Embryology found that babies born after SET (single embryo transfer) in IVF pregnancies have similar birth weights, gestational ages, and stillbirth rates to those conceived naturally. However, SET pregnancies reported more hypertension.
Researchers have developed a new method to obtain embryonic stem cells from early-stage embryos, potentially reducing embryo wastage. The technique was successful in mice and shows promise for human application.
Researchers identified a unique genetic pattern in 8 women over 45 who conceived spontaneously, involved in apoptosis and DNA repair mechanisms. This genetic predisposition may help protect against age-related ovary damage, allowing some women to remain fertile until menopause.
A study found that prednisolone significantly reduces uNK cell numbers in the endometrium, potentially offering new hope for women with recurrent miscarriages. The treatment's effectiveness is still unclear, as it was only tested for three weeks and longer-term results are needed.
Scientists have successfully developed ovarian structures containing eggs from embryonic stem cells, a breakthrough that could provide new hope for infertile couples. The method uses growth factors derived from testicular cells to induce the development of female reproductive cells.
Reproductive tourism in Europe allows for diverse ethical and religious views to coexist peacefully. The existing diversity in fertility laws enables people to seek treatment abroad, promoting personal freedom and democratic decision-making.
Researchers discovered that some abnormal embryos can self-correct in laboratory culture, producing high-quality stem cells. This breakthrough offers an alternative to creating embryos specifically for stem cell research, potentially resolving ethical concerns.
Researchers have successfully derived human embryonic stem cells that can develop into primordial germ cells, which eventually form eggs and sperm. This breakthrough may help solve infertility issues and study the effects of environmental chemicals on reproductive development. Further work is needed to translate this promise into reality.
A study of 225 women undergoing IVF found that side-stream smoking was associated with lower implantation and pregnancy rates compared to non-smoking and mainstream smoking groups. The researchers are calling for women to reduce or prevent exposure to cigarette smoke, especially when trying to conceive.
Researchers found that women born in March reached menopause at under 49 years, while those born in October waited over 50 years for it to happen. The study suggests prenatal environmental factors can affect a baby's adult life and reproductive health.