Carolien M. Boomsma

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Polycystic ovary syndrome (PCOS) is a common reproductive disorder associated with many characteristic features, including hyperandrogenaemia, insulin resistance and obesity which may have significant implications for pregnancy outcomes and long-term health of the woman. This meta-analysis was conducted to evaluate the risk of pregnancy and neonatal(More)
BACKGROUND The study of human endometrial-embryonic interactions is complicated by the disruptive impact of endometrial sample collection on the process of implantation itself. Endometrial secretion analysis is a novel technique, non-disruptive to implantation. The primary aim of this prospective cohort study was to explore whether a cytokine profile(More)
BACKGROUND Semen preparation techniques for assisted reproduction, including intrauterine insemination (IUI), were developed to separate the motile morphological normal spermatozoa. Leucocytes, bacteria and dead spermatozoa produce oxygen radicals that negatively influence the ability to fertilize the egg. The yield of as many motile, morphologically normal(More)
BACKGROUND In order to improve embryo implantation for in vitro fertilisation (IVF) or intracytoplasmic sperm injection (ICSI) cycles the use of glucocorticoids has been advocated. It has been proposed that glucocorticoids may improve the intrauterine environment by acting as immunomodulators to reduce the uterine natural killer (NK) cell count and(More)
OBJECTIVE To elucidate the impact of ovarian stimulation on the intrauterine milieu represented by the cytokine, chemokine, and growth factor profile in endometrial secretions aspirated before embryo transfer. DESIGN Prospective cohort study. SETTING Fertility center in tertiary referral university hospital. PATIENT(S) Forty-two patients undergoing(More)
Investigation of human embryo implantation requires a non-disruptive means of studying the endometrium during the window of implantation. This study describes a novel approach of cytokine profiling in endometrial secretions. Endometrial secretions aspirated prior to embryo transfer from 210 women undergoing IVF or intracytoplasmic sperm injection were(More)
Implantation is a complicated process that requires the orchestration of a series of events involving both the embryo and the endometrium. Even with the transfer of high quality embryos, implantation rates remain relatively low. The growing tendency towards transferring fewer embryos provides further incentives to improve implantation rates. In this(More)
Human embryos frequently harbor large-scale complex chromosomal errors that impede normal development. Affected embryos may fail to implant although many first breach the endometrial epithelium and embed in the decidualizing stroma before being rejected via mechanisms that are poorly understood. Here we show that developmentally impaired human embryos(More)
The analysis of endometrial secretions offers a window on human peri-implantation events that have hitherto been difficult to study noninvasively. Uterine secretomic analysis provides a sensitive means of interrogating the contents of secretions, which have been shown to play a key role in determining endometrial receptivity and embryo-endometrial(More)
BACKGROUND Laparoscopic morcellation is frequently used for tissue removal after laparoscopic hysterectomy or myomectomy and may result in parasitic myomas, due to seeding of remained tissue fragments in the abdominal cavity. However, little is known about the incidence and risk factors of this phenomenon. OBJECTIVES To identify the incidence and risk(More)