Cutting the risk of coronary disease - start before birth says UK doctor
A UK doctor suggests that preventing coronary disease begins with the fetus's growth and nutrition. The
Search results for “Embryology”
694 results for "Embryology"
Ovarian stimulation in mice adversely affects embryo development and implantation
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.
SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateJan 30, 2001
US and Japanese scientists develop new test for male infertility
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.
SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateJan 30, 2001
Fertility experts urge clinics to consider ‘natural cycle’ IVF instead of routine use of ovarian stimulants
A study by UK fertility experts found that natural cycle IVF can achieve comparable results to conventional treatment in 60-70% of cases, while reducing costs and risks. The approach is suitable for women with regular menstrual cycles and fallopian tube problems, but not for those with irregular ovulation or ICSI requirements.
SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateJan 30, 2001
Researchers find candidate gene for premature menopause
Researchers have identified a potential candidate gene for premature menopause, which may be responsible for up to a quarter of cases in under-25s. The study found that mutations in the inhibin alpha gene were present in three out of 43 women with premature menopause, compared to only one in 150 in an ethnically matched control group.
SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateNov 29, 2000
Low frequency EMF damages mice ovarian follicles
Researchers found that ELF-EMF significantly reduced the development of mouse pre-antral follicles, a crucial step for successful reproduction. Exposure to 33Hz or 50Hz frequencies impaired follicle development, with only around a third and half of exposed follicles developing antral cavities compared to controls.
SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateOct 30, 2000
UK scientists make major advance with novel chromosome testing technique
Researchers at University College London Medical School have made a major advance in assisted reproductive techniques with a new chromosome testing technique. The technique allows for the assessment of every single chromosome in virtually every cell of a test-tube embryo, potentially leading to improved IVF success rates.
SourceEuropean Society of Human Reproduction and Embryology·JournalMolecular Human Reproduction·DateOct 22, 2000
New research highlights concerns over children born through donor insemination
Two studies reveal that half of parents using donor insemination are not telling their children about their biological origins, putting them at risk. Meanwhile, a UK study of adults conceived through DI found they faced identity issues, feelings of abandonment and deceit within their families.
SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateAug 30, 2000
UK study finds men also have a biological clock
A UK study found that men's age significantly impacts conception rates, with the probability of conceiving within 12 months doubling from around 8% at under 25 to 15% at over 35. The study also revealed a decline in male fecundity associated with increasing paternal age.
SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateJul 31, 2000
Is testosterone a cause of endometrial cancer?
A team of Dutch doctors and scientists have found a possible link between testosterone and endometrial cancer, with high local pelvic androgen levels and increased expression of androgen receptors detected in patients. The study suggests that androgens may be a co-factor in the development of endometrial cancer.
Screening embryos for 'problem' chromosomes
Pre-implantation genetic diagnosis (PGD) is improving fertility outcomes for couples with genetic conditions, drastically reducing miscarriages and birth defects in older mothers. PGD can detect aneuploidy and translocations, allowing only healthy embryos to be transferred.
Fewer eggs in IVF patients linked to early menopause
A recent study by Dutch fertility experts suggests that women undergoing IVF treatment who have a low number of eggs retrieved are more likely to enter an early menopausal state. The research indicates a correlation between the age of menopause and the number of eggs produced, supporting one of the concepts of reproductive ageing. Howe...
Unexplained infertility -- the way forward in the fog
For couples experiencing unexplained infertility, a five-step treatment program has shown a 75% success rate in conception. The program includes careful evaluation and escalating steps such as antibiotics, intra-uterine insemination, and IVF with ICSI.
Don't opt for ART too soon, doctor urges patients and centres
A Dutch gynaecologist warns couples about the risks of Assisted Reproductive Technology (ART) and advises them to consider natural conception first. Nearly half of women who have not conceived after a year will conceive naturally, making informed decisions crucial before treatment.
Europe leads the world for IVF treatment
The report reveals big variations between countries, with France, Germany, and the UK carrying out more than half of all IVF treatments. Scandinavian countries and the Netherlands have the highest availability of IVF treatment, resulting in a significant number of children being born through IVF.
Lasers to the aid of embryos
Researchers are using lasers to aid embryonic development by precision-drilling the 'shell' of human eggs. This technique has shown improved IVF success rates and increased implantation rates, allowing embryos to embed themselves in the womb more effectively.
Good news for mothers who can't conceive second baby
New research suggests that young women have a high chance of conceiving a second baby without fertility treatment. Over 98% of women who didn't conceive within three years succeeded in doing so within the next three years, according to the study, which analyzed records of over 2,300 Canadian women.
Researchers announce first preimplantation genetic diagnosis for a rare inherited disease
Researchers have developed a preimplantation genetic diagnosis test for OTCD, allowing them to detect the abnormality in embryos. This breakthrough may enable PGD tests for other families in the future, providing relief to those affected by this rare and distressing disease.
'Lives on hold' -- the emotional costs for 'super copers'
Couples undergoing infertility treatment experience intense emotional highs and lows, with physical discomfort being a secondary issue. The promise of technology to control reproduction only exacerbates the problem, leading to increased distress for those who fail to conceive.
Controversies in ART
Australian fertility expert Professor Carl Wood discusses the controversies in Assisted Reproductive Technology (ART), including embryo cloning, IVF for cancer patients, and LGBTQ+ access to fertility treatments. He emphasizes the need for careful consideration of these issues, highlighting both advantages and drawbacks.
New womb surgery technique
A new womb surgery technique uses an IntraUterine Shaver to remove uterine tissue mechanically, reducing the risk of complications associated with current methods. The procedure is expected to cut substantially the number of hysterectomies and make minimal access surgery more accessible.
European Society of Human Reproduction & Embryology conference, Bologna, Italy, 25-28 June
The European Society of Human Reproduction & Embryology conference in Bologna, Italy, presented groundbreaking research on preimplantation diagnosis, cancer risk factors, and assisted reproductive techniques. The event also explored new technologies, such as keyhole surgery and laser-assisted IVF.
Infertility - an occupational hazard for drivers?
A study by French fertility experts found that long hours of driving can lead to higher scrotal temperatures, potentially affecting sperm formation and male reproductive function. The research measured scrotal temperature under normal driving conditions, revealing a significant increase in temperature over time.
SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateMay 29, 2000
Fears over ICSI largely groundless say fertility experts
A study of over a thousand babies born after ICSI found an increased risk of abnormalities compared to babies born without fertility treatments. However, most abnormalities were linked to conditions associated with multiple or premature births rather than the ICSI technique itself.
SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateMar 28, 2000
International survey finds two-thirds of men would take 'the Pill'
A global survey found that nearly all women would trust their male partners to use a male pill, while over two-thirds of men said they would use the contraception. The study suggests a potential impact on male fertility and relationships.
SourceEuropean Society of Human Reproduction and Embryology·JournalHuman Reproduction·DateFeb 22, 2000
Wistar Institute To Host Regeneration Symposium (Updated Schedule)
The Wistar Institute's Regeneration Symposium will feature talks on epimorphic regeneration, limb regeneration, and the role of ependymal cells in spinal cord regeneration. Experts like David Stocum, Alejandro Sanchez Alvarado, and Susan V. Bryant will share their research findings.
Wistar Institute To Host Symposium On Regeneration In The 21st Century
The Wistar Institute hosted a symposium on regenerative biology, featuring experts discussing recent advances in understanding regeneration in metazoans, stem cells, and nervous systems. Key findings included insights into limb regeneration, spinal cord repair, and muscle cell replacement.
Study Finds Protein Clues To Early Embryo Development
Researchers identified SLBP1 and SLBP2 proteins in frog oocytes, which act as biochemical switches triggering histone synthesis crucial for embryogenesis. The study provides new insights into the process of embryogenesis and its relation to stored RNA activation.
SourceUniversity of North Carolina Health Care·JournalMolecular and Cellular Biology·DateJan 28, 1999
Evidence Mounts Against Maintstream Dogma In Embryology, Could Shed New Light On Neurological Defects
A new study in Nature reveals that floor plate development occurs earlier and is driven by factors other than the notochord. This challenges the classic model of neural cell patterning, which posits a central role for Sonic hedgehog signaling.
Death No Longer Provides An Absolute Barrier To Fatherhood
A team led by Cappy Rothman has successfully used sperm from a dead man to establish a pregnancy. The woman is now one month pregnant after being injected with eggs harvested from the deceased man's wife. Bioethicist Arthur Caplan fears that regulations are lagging behind technical advances in posthumous reproduction.
Heart and Soul: The Blood Vessels And Brain Use Common Guide
Researchers at Harvard Medical School found that a protein wireing the developing brain also prevents nerve cells from entering off-limits areas, and plays a role in blood vessel formation. This convergence of two processes may lead to new insights into cancer research and embryology.
Harvard Medical School Researchers Discover Protein That Explains How Egg Cells Prepare To Become Embryos
Researchers have discovered a novel protein, Vera, that plays a crucial role in RNA localization in oocytes. This process is essential for the development of embryogenesis and has broad implications for biology, as it occurs in many adult cell types.
Director-General f UNESCO Rules Out Human Cloning
UNESCO has issued a declaration stating that human cloning is unacceptable, citing ethical concerns and the preservation of humanity's infinite diversity. The organization's director-general has called for a world commission on ethics and science to tackle issues related to scientific developments beyond genetics.
Frog Is Prince of New Technology
Kristen Kroll's innovative technique enables the mass production of genetically modified frogs, allowing researchers to study embryonic development in unprecedented detail. By disabling specific signaling pathways, scientists can pinpoint precise stages of tissue and organ formation.