J L Evers

Since not all problems in endometriosis can be studied in the human, there is need of an animal model. We transplanted endometrial tissue of the rabbit into the peritoneal cavity and studied the changes after 12 weeks. At that time the endo…

The objective of the present study was to detect the expression of P-cadherin in human endometrium and endometriosis and to compare this expression to that of E-cadherin. To this end immunohistochemistry with monoclonal antibodies specific …

The chick embryo chorioallantoic membrane (CAM) bioassay was used to investigate the early pathogenesis of endometriosis. Endometrial fragments were explanted onto the CAM. The grafts including the surrounding CAM were excised at 24, 48 or …

Sampson's transplantation theory for the pathogenesis of peritoneal endometriosis is widely accepted. The events that take place, however, on the cellular and subcellular level during the transition of endometrial tissue in the abdominal ca…

Previous in-vitro studies have shown that the endometrium preferentially adheres to the extracellular matrix (ECM) of the amnion and peritoneum. This interaction probably involves adhesion molecules, e.g. integrins. We evaluated the express…

In a previous study on the pathogenesis of endometriosis, we observed that constituents of menstrual effluent induce morphological alterations in human mesothelial cells. In this study, we investigated whether these alterations were associa…

One of the first steps in the pathogenesis of endometriosis is the attachment of the endometrium to the peritoneal lining. Since the peritoneum is extremely fragile and hard to obtain, amnion has been used as an in-vitro model to study adhe…

Reproductive research benefits from combining animal and clinical studies. In Leuven, rabbits have constituted an animal model for many reproductive disorders, especially for those that involved surgical treatment. Much of what has been lea…

OBJECTIVE: To evaluate whether a menstrual cup is a suitable instrument to collect antegradely shed endometrium for in vitro studies. DESIGN: A prospective, descriptive, cell biological and immunohistochemical study. SETTING: Tertiary car…

OBJECTIVE: To detect cadherin and integrin expression in biopsies of endometrium in the phases of the cycle. Cell adhesion molecules may be involved in endometrial shedding during menstruation and attachment of shed endometrial tissue to th…

Journal Article Is mild endometriosis a disease:Endometriosis does not exist; all women have endometriosis Get access Johannes L.H. Evers Johannes L.H. Evers Department of Obstetrics and Gynaecology, Academisch Ziekenhuis Maastricht and The…

OBJECTIVES: To investigate whether the aminoterminal propeptides of type III procollagen are increased in patients with early endometriosis and to demonstrate that the subtle lesion of endometriosis is an active stage of the disease. DESIGN…

Journal Article Immunohistochemical analysis of oestrogen and progesterone receptors of eutopic and ectopic endometrium in the rabbit model of endometriosis: the effect of pregnancy Get access G.A.J. Dunselman, G.A.J. Dunselman 1 Department…

Endometriosis may be either symptomatic or asymptomatic. Recurrence rates are mostly calculated on the basis of symptomatic patients re-presenting to their doctor. Based on the number of patients who experience recurrence of symptoms after …

The reasons for sub-fertility in patients with mild endometriosis remain unclear. Peritoneal fluid constituents may alter tubal transport and embryonic cleavage, with subsequent implantation disturbances. We used an animal model to study th…

In 25 rabbits (Group E) endometrium from the right uterine horn was transplanted onto the peritoneum. In 25 rabbits (Group C) fat was transplanted. After a recovery period of 12 weeks the does were mated, and killed 24 h later. In Group E t…

A decreased intraabdominal fibrinolytic activity has been proposed as an etiological factor in the development of endometriosis. To test this hypothesis plasminogen, fibrinogen, alpha 2-antiplasmin, alpha 2-macroglobulin, plasminogen activa…