Fertility in women is dependent on ovarian follicles that contain immature oocytes. All follicles are formed during fetal development and should last for the reproductive lifespan of the woman. At most, there are a few million non-growing follicles in the ovaries of the female fetus during mid-gestation, and thereafter, the numbers decrease. At the onset […]
Researchers at the University of Kent have identified crucial new evidence on the safety and efficacy of a controversial area of IVF treatment – preimplantation genetic testing for aneuploidy (PGT-A). PGT-A is the screening for gross genetic (chromosomal) abnormalities in human IVF embryos with a view to improving IVF success rates and guarding against miscarriage. […]
Endometriosis is an estrogen-dependent chronic gynecologic disorder that significantly reduces the quality of life of affected women. Characterized by adhesions of endometrial fragments in extra-uterine sites (predominantly in the peritoneal cavity and ovary but occasionally on the diaphragm, liver, and abdominal wall), the condition occurs in ~10% of the general population and is associated with […]
Sperm cells moving their long tail to swim through the body in search of an egg is a familiar image, but a fully ‘powered’ tail may not be the key to success, according to a new UK study which could be crucial for improving the outcomes of assisted fertility treatments. Propulsion of sperm and how […]
In human populations, there are strong seasonal patterns of births that vary across geographic regions and time periods. However, previous studies of seasonality and fecundity are limited because they examine season of birth rather than season of conception and therefore neglect to account for seasonal variation in initiating attempts to conceive or pregnancy loss or […]
Dangerous levels of microwave radiation from Wi-Fi and other devices were discovered in school classrooms in Ontario as measured by students from Peel District School Board. The radiation levels found were strong enough to cause infertility problems. The students organized an open meeting in order to inform all school students about the dangers they are […]
Does male age affect embryo growth or quality in couples undergoing IVF treatment? Literature shows that Advanced paternal age (APA) is associated with decreased sperm quality and fecundity. However, the effect of male age on embryo growth in an IVF setting remains inconclusive. Literature concerning male influences on IVF success is scarce and approaches used […]
To explore the possible influence of sperm quality, as assessed by prewash total sperm count (TSC), on cumulative success rates in assisted reproduction cycles. Methods: Retrospective study carried out in private IVF centre. Seven hundred sixty-five couples undergoing complete ICSI cycles, i.e. whose all embryos were transferred or disposed of. Couples were characterised by male […]
In this study, 3,480 cycles of in vitro fertilization with preimplantation genetic testing for aneuploidy (PGT-A) in the blastocyst stage and euploid embryo transfer were divided into four groups according to patient body mass index (BMI). The primary outcome was the miscarriage rate, which included both biochemical and clinical miscarriages. Secondary outcomes were implantation, pregnancy, […]
Unexplained infertility represents about 22–28 percent of infertility causes.The diagnosis is based on the exclusion of common causes using standard fertility investigation. Over the years, the causes of unexplained infertility or subfertility have been identified in pre-existing associated pathologies, such as alterations of the immune system, thyroid dysfunctions, and coagulopathies. Studies regarding the influence of […]
Increased oxidative stress has been identified as a pathogenetic mechanism in female infertility. However, the effect of specific antioxidants, such as coenzyme Q10 (CoQ10), on the outcomes after Assisted Reproductive Technologies (ART) has not been clarified. The aim of this study was to systematically review and meta-analyze the best available evidence regarding the effect of […]
A question that couples very often ask when starting an assisted reproduction program is related to the two most common techniques used to achieve egg fertilization and the coveted pregnancy. Confirmation of the best technique given through this study based on the highest rates of blastocysts per egg used for the procedure. In this retrospective […]
Increasing maternal age and subsequent infertility have rapidly become a significant challenge to family planning, as a result of the irreversible decline in female fertility in mammals. The rate-limiting factor for successful pregnancy is oocyte quality, which significantly declines from late in the third decade of life in humans. Despite the enormous demand, there are […]
The issue of fertility preservation (FP) in young cancer patients has become an important issue. Although many techniques have been developed, vitrification of fertilized or unfertilized eggs recovered after controlled ovarian stimulation, prior to cancer treatment, is now the most established and effective method of maintaining female fertility. When ovarian stimulation is not possible or […]
Women wanting to know how many eggs they have left may in future be able to have their hair tested to reveal their hormone levels. A signalling chemical related to women’s fertility called anti-Müllerian hormone (AMH) is incorporated into hair shafts while they are still underneath the skin. Testing the hair may give a better […]
Human eggs use chemical signals to attract sperm. New research from Stockholm University and Manchester University NHS Foundation Trust shows that eggs use these chemical signals to choose sperm. Different women’s eggs attract different men’s sperm—and not necessarily their partner’s. Humans spend a lot of time and energy choosing their partner. A new study by […]
Australian fertility experts are now testing the technique, which uses artificial intelligence to improve the odds of a successful pregnancy, in the largest trial of its kind in the world.As part of the international study, led by national fertility provider Virtus Health, 1000 patients will be recruited at five IVF clinics across Australia, alongside sites […]
The novel coronavirus can persist in the semen of men who are recovering following infection, according to a new study. The preliminary findings of a Chinese study raise the small possibility that the virus could be sexually transmitted. According to the Authors from The Eighth Medical Center of Chinese People’s Liberation Army General Hospital, “to […]
Leaving an infant to ‘cry it out’ from birth up to 18 months does not adversely affect their behaviour development or attachment, researchers from the University of Warwick have found, they also discovered that those left to cry cried less and for a shorter duration at 18 months of age. Researchers from the University of […]
Emerging literature suggests that men’s diets may affect semen quality, but there is little knowledge about the relation between meat intake and male fertility. A new study, currently published in Fertility and Sterility, showed that processed meat intake was negatively associated to fertilization rate in conventional IVF cycles. Even though it was found no link […]
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