38 results
Primary objective: 1) To examine the effect of IGSF1 deficiency syndrome on semen quality when compared to WHO reference ranges;2) The comparison of semen quality of these patients to that of healthy controls.To investigate the association between…
In view of this lack of evidence and strong practice variation we propose a randomized clinical trial in overweight and obese subfertile women, in which we compare the costs and effects of a six months structured lifestyle program, aimed at weight…
The overall objective of this study is to examine specific cardio-metabolic and cardiovascular parameters in women of subfertile couples. This study protocol is divided in 3 studies to evaluate several cardio-metabolic/cardiovascular parameters in…
The aim of this project is to develop a comprehensive EORTC questionnaire for assessing sexual health for male and female patients with cancer. Given the lack of a sexual health related measure that can be used in clinical trials and in clinical…
Objective(s): The primary objective of this study is to asses the dynamic vaginal pressure profile in two groups: 1) women diagnosed with dyspareunia and, 2) women with primary vaginismus. The secondary goal is to assess vaginal reflexes in women…
The aim of the proposed research is to assess, using multimodal fMRI, both functional (BOLD responses) and structural (white matter) cerebral characteristics of the human IELT. In turn, this could provide specific novel (neocortical) targets in the…
To test The Selection Failure hypothesis by assessing A) the degree of embryo invasiveness and decidual acceptance (the quality of decidualization, endometrium-embryo communication and endometrial stromal cell (ESC) migration) and B) the angiogeneic…
We aim to: 1) Characterize differences between paternal and maternal chromatin organization and pericentric heterochromatin formation after fertilization and during pre-implantation embryo development. 2) Analyze if this asymmetry affects formation…
The primary objective of this study is to asses the dynamic vaginal pressure profile in asymptomatic women. The secondary objective is to assess vaginal reflexes in asymptomatic women.
The primary aim of this study is to examine/determine the effect of Totally ExtraPeritoneal (TEP) endoscopic hernia repair on male fertility. To measure this outcome, we examine testicular perfusion, volume, semen quality and blood levels of…
To evaluate the course of psychological emotions, from the active treatment period until the first pregnancy test result, in IVF patients participating in a randomized controlled trial comparing two different IVF treatments (ENDO-RECEPT).
Primary objective:To evaluate variations of androgenicity and androgen (re) activity in (apparently) eugonadal females by using CAG repeat length polymorphism ([CAG]n) of the androgen receptor, free testosterone levels, 2D:4D ratio and attention for…
To increase our understanding of the developmental significance of chromosomal mosaicism in preimplantation embryos by investigating their implantation potential and the fate of abnormal cells after an in vitro implantation procedure.
The objective of this observational study is the safe introduction of clinical applied IVM in The Netherlands. During this study, the number and quality of the oocytes and embryos will be studied as well as pregnancy development. Emphasis will be on…
The hypothesis is that women who have the Ser680Ser (SS) variant of the FSH receptor genotype, in comparison with women with the Ser680Asn (NS) or Asn680Asn (NN) variant, are less sensitive to FSH and because of that need higher dosages of FSH when…
The objective of this study is to evaluate a new and less invasive method of PGS. The new PGS technique will analyse a nucleus of a blastomere that was obtained by nuclear extraction rather than by biopsy of a whole blastomere.
In this study we aim to compare the effect of two different ovarian stimulation protocols on embryo quality in a group of women of 39 years or younger, in a prospectively randomized controlled trial. PGS will be performed to assess chromosomal…
It is important that we get insight into which of the above mentioned factors are related to psychological problems. It could give us some important starting points for designing psychological intervention programs. Such an intervention could not…
We intend to employ an ex vivo model of human implantation to study the factors involved in successful implantation. By linking parameters of successful implantation with embryo quality markers, we aim to improve embryo selection and IVF outcomes.…
We will assess the correlation between the incidence of early pregnancy loss and the successrate of ART in women with unexplained infertility. We will also investigate the difference in the incidence of early pregnancy loss in women with unexplained…